Accounts Payable Days: Calculate DPO (Days Payable Outstanding)

Days Payable Outstanding (DPO) is the average number of days a company takes to pay its suppliers after the invoice arrives. For example, if your DPO is 45, it takes you about a month and a half to pay a standard invoice. Your finance team carefully monitors that period to ensure you have funds available for other purposes in the meantime.

DPO also impacts your accounts payable forecasting by making upcoming cash outflows easier to project with predictable payment cycles. This guide will show you exactly how to do the calculation of DPO step-by-step and how to judge whether your result works for your industry. It also covers the levers that move the number up or down.

Key takeaways

• DPO explains the average number of days a company takes to pay its suppliers: (average AP / COGS) x days.
• You’ll want DPO to be healthy in the context of your sector and payment terms, so benchmark against close peers.
• Whilst a high DPO will have a positive impact on your cash reserves, extending it beyond the contract terms introduces the risk of late fees and even supply disruptions.
• To get the results right, COGS should be the base denominator, with the same consistent time period for every input.
• In annual figures, DPO = 365 / AP turnover ratio; each extra day of DPO makes the cash conversion cycle shorter by one day.
• Clear insight into obligations helps with better payment timing, taking advantage of early payment discounts that beat the cost of funds.

What is Days Payable Outstanding (DPO)?

Days Payable Outstanding (DPO) helps you understand how long your business holds onto cash before paying suppliers. It’s a useful measure of working capital management, showing how payment timing affects liquidity and your ability to meet other financial obligations.

What does DPO measure in your business?

DPO measures the average number of days between when you receive a bill from your vendors or suppliers and when you pay for it. All unpaid invoices sit in your accounts payable until the money goes out, so you can consider this to be a metric for the amount of time that balance stays on your books.

You calculate it by dividing the average payable balance by daily cost of goods sold, which converts a currency amount into days and makes quarter-to-quarter comparisons much easier. You can find both inputs on the balance sheet and income statement.

Liquidity is how the metric earns its keep. A business paying in 60 days holds its cash for an entire month longer than the one paying in 30. That extra month of additional cash can cover payroll or absorb a late customer payment when necessary.

Why is DPO considered a key financial metric?

DPO connects two areas that rarely exist in the same dashboard:

• Cash management;
• Supplier behavior.

It exposes how much of your company’s operations is funded by your suppliers, so any deliberate procurement strategy has to take it into account to work properly. It also shows the current state of your vendor relations: a figure growing over time without a plan most likely means the invoices are getting paid late.

How does DPO differ from other cash flow metrics?

DPO only addresses the payables component of cash flow. The other side of that coin is called days sales outstanding (DSO), tracking how long it takes for customers to pay for what sits in accounts receivable.

Cash flow statements and the accounts payable ledger record actual cash movement, while DPO condenses that activity into one speed metric. It’s also an important part of the cash conversion cycle, offsetting inventory days and DSO.

What does a high or low DPO indicate about your company?

A high DPO indicates you're deferring payment of your suppliers for longer. This could be a sign of good negotiation skills and good payment terms, but it could also be a sign of cash flow challenges.

Suppliers may be adding a premium to prices and deprioritize your orders if they feel their payment terms are being stretched. Those actions from your suppliers can easily disrupt supply chains well beyond a single invoice.

Conversely, if your DPO is low, you're paying those invoices fast. Suppliers are happy, and you could be earning some early payment discounts, but you're sacrificing cash that you could put to some other use.

Understanding benchmarks: What is a good DPO?

A good DPO depends on your industry, company size, and supplier payment terms. Rather than aiming for the highest possible DPO, compare your results with similar businesses and consider how payment timing affects cash flow and supplier relationships.

What is considered a healthy DPO for your industry?

There’s no “right” DPO for every business at once. The Hackett Group’s 2025 working capital survey put the average at 59 days for the 1,000 largest US publicly traded nonfinancial companies. However, that sample was made using primarily large-scale businesses, so smaller companies might have completely different results.

For your own business, trying to gather the average range among direct competitors buying similar goods can get you a good starting point to work with. If your DPO is already close to that range, you’re paying roughly what suppliers expect to be paid, which is good.

It's when you're off that you should address that difference, ideally with a procurement team that can help make sure you're maintaining and strengthening supplier relationships and not losing leverage by rigidly holding your terms.

How does DPO vary across different sectors?

Sector economics tell you where the starting point is. Long production cycles and bulk purchasing lead to higher DPO values. Meanwhile, fast-turning retail companies tend to get their payments done quicker than most. Procurement teams across sectors see the same logic everywhere: DPO follows how an industry buys and gets paid.

Published ranges tend to differ, so we’re offering the rough numbers below as starting points for comparison; they should never be treated as the objective truth, and you should always check your performance against peers of similar size when possible.

Companies managing vendor relationships in a centralized system can see the terms of each supplier at once, simplifying DPO comparison.

Is a higher DPO always better for your business?

A higher DPO would only be better for the company up to a certain point. Savings from extended payment cycles are absolutely real, as the cash that is held back reduces the need for any short-term borrowing. That said, there’s a limit to how far you can push it until suppliers start responding to it — we’ll discuss this topic in more detail later in the article.

As such, we should clarify that the highest DPO you should use is the one that suppliers accept without changing the way they treat you.

What are the risks of having Accounts Payable Days that are too high?

Extending payments too far could result in additional costs exceeding the cash you are saving. By delaying payment to suppliers, they may impose late charges or penalty interest. A supplier that can easily find other buyers wouldn’t hesitate before moving your order to the back of the queue.

These types of risks tend to build up slowly. A supplier might start by asking about an overdue invoice first, followed by a change in how quickly your orders are shipped. At that point, the relationship has already been affected, and rebuilding it would take considerably longer than any advantages of late payments could offer to you. The terms in your vendor agreements matter as well - many contracts give suppliers the right to charge interest on late balances.

A DPO that looks comfortable internally might already be outside of what was agreed upon initially. An excessive value also affects how a company is perceived externally, too. Lenders and investors that see above-average DPOs may take it as a sign of issues with the cash flow, potentially resulting in higher financing costs.

If DPO has been creeping up for several quarters while contractual terms remained the same, late payment would be the most likely cause.

When does a low DPO actually benefit your company?

A low DPO can actually be an advantage if you get the right benefit out of that quick payment. Suppliers may even be willing to give you discounts for early payments, or prioritize you when resources become limited. If you're heavily dependent on a specific supplier, paying faster can go a long way toward strengthening supplier relationships, particularly if you're approaching a contract renewal period.

Why should you calculate Days Payable Outstanding?

Calculating DPO helps you understand how payment timing affects working capital, cash flow, and supplier relationships. It also gives investors and creditors insight into your payment practices and overall financial health.

How do Accounts Payable Days impact your cash flow management and working capital?

DPO shows a company how long its cash stays inside the business after a purchase. Increasing DPO means you’ll spend less funding on the same sales volume, since suppliers would carry more of the cost for longer. Decreasing DPO, on the other hand, means a business has to finance more of its own operations.

The effect in question is easy to put into currency terms: each extra day of DPO frees one day of cost of goods sold. A company that has an annual COGS (cost of goods sold) of $36.5 million would release about $100,000 per every single day it adds to the DPO. Keeping DPO statistics near the cash balance and the credit line would help you see if your existing working capital position is an optimal one.

What do suppliers and investors learn from your Accounts Payable Days?

Your suppliers don't look at your DPO as just a number, but they experience it every time you pay an invoice. You stand to gain when you maintain it close to the terms you have agreed; it's a sign that you're a reliable customer. It also often means improved prices and faster availability of inventory when needed. When it varies, suppliers can be hesitant and may require deposits or reduced terms.

There are also investors and creditors that read DPO straight from the financial statements. What they look for is different from what was mentioned above, and it includes:

• Stability over time, as erratic swings indicate a poor grip on payments.
• Current position against industry competition, including contract terms.
• Direction alongside revenue: a rising DPO with falling sales might indicate a cash strain.
• The connection to DSO and inventory days shows what kind of potential gap payables might be covering elsewhere.

How to calculate Accounts Payable Days: The complete formula

The standard DPO formula is straightforward, but choosing the right reporting period and payable balance is essential for accurate results and meaningful comparisons.

What is the standard DPO formula?

The basic DPO formula divides average accounts payable by cost of goods sold and then multiplies the result by the number of days in the period:

Average accounts payable is the typical amount you owe on unpaid supplier invoices over a period of time, and COGS is how much you spend to produce or buy the goods you sell.

By dividing them, you get how much of what you’ve spent is still unpaid at any point in time, and the multiplication converts that fraction into days. There are also a few small variations of this formula by modifying which payable balance to use and how many days to count — both of these will be covered in more detail later in the article.

What time period should you use for accurate DPO calculation?

There’s no specific recommendation for the time period that would work best in any DPO calculation. That said, one year (365 days) seems to be a common starting point when comparing your company with competitors, while both a quarter and a month are usually viable for tracking trends. Remember to apply the matching day count and also take both inputs from that same period.

Longer time periods smooth out the effects of seasonality. Shorter periods show the growth or shrinkage faster but are easily disturbed by one large invoice.

Step-by-step guide: How to calculate your Accounts Payable Days

To calculate Accounts Payable Days accurately, you’ll need your accounts payable balance and cost of goods sold (COGS) from the same reporting period. Follow these five steps to find the right figures, calculate average payables, and apply the DPO formula to your business.

Step 1: Where do you find your accounts payable balance?

Your accounts payable balance exists on the balance sheet: under current liabilities, typically labeled “accounts payable” or “trade payables.” It includes what you owe to vendors for goods or services received on credit, and doesn’t include any loans. Remember to pull the balances for both the beginning and the end of the period, as Step 3 would require both of those.

Step 2: How do you locate your COGS on financial statements?

COGS appears just below revenue on the income statement, labeled either as “cost of sales” or “cost of goods sold.” COGS accounts for the direct costs incurred from creating or purchasing the product or service you sold, but doesn't include operating expenses like marketing or administration. It’s not uncommon for service businesses to report no COGS at all, with the examples below showing what could also be used instead.

When there’s no COGS value in the statement, it can be calculated as:

These figures should be taken from the same period as your payment balances. Reporting dashboards in procurement systems tend to show purchase totals ahead of the official closing; this could help with early mid-quarter estimates.

Step 3: What is the correct way to calculate the average accounts payable?

The average accounts payable combines the beginning balance and the ending balance before dividing them by two:

Averaging helps smooth out the potential spikes caused by individual snapshots — payable balances often jump around a quarter-end payment run. The benchmarking comparisons will only hold up if the same method is used for every period because the input calculations have to be analyzed consistently.

Step 4: How do you apply the Accounts Payable Days formula with your numbers?

Divide the average AP by COGS and multiply the result by the number of days in the period. For the sake of better visualization, our calculations will use a company with the following annual figures:

A quick check confirms the results of our calculation: daily COGS is at $10,000 ($3,650,000 / 365), and $450,000 in unpaid bills results in 45 days of that spending. This means that an invoice received on January 1 will typically be paid around February 15.

It also shows why the choice of balance matters and why using the average AP is better: using only the ending balance would result in 49 days of DPO, while the beginning balance would turn up 41 days, both of which are several days off the average result.

Step 5: How do you interpret your final Accounts Payable Days result?

Begin by comparing your results with what your suppliers’ payment terms state, followed by your industry range from the benchmarks above. If your DPO is well below your weighted-average payment terms, you’re paying early and leaving cash idle unless a discount justifies it. If it’s above your terms, invoices are going overdue. The industry range indicates whether your terms are typical.

That said, the DPO number that’s significantly different from both the supplier terms and the results of your peers warrants another look at all the inputs before making any conclusions or further actions.

Common Accounts Payable Days calculation mistakes to avoid

Accurate DPO calculations depend on using the right inputs and consistent methods. Avoid these common mistakes to prevent misleading results and make better-informed payment and cash flow decisions.

Why using total expenses instead of COGS distorts Accounts Payable Days

Relying on total expenses instead of COGS leads to DPO looking shorter than it actually is: the denominator grows with costs that suppliers never invoice, like payroll or rent. We can take the same $450,000 payables balance we used in Step 4 before in order to prove our point:

You may notice how nothing about the payment behavior changed between the rows, but the DPO result dropped by a third. Of course, some payables do come from operating costs like software subscriptions or outside services, which is why some analysts divide by total credit purchases instead. However, that option stays tied to supplier invoices, while total expenses also include payroll and other costs that never pass through AP to begin with.

Irrespective of which formula you’re going to use, remember to keep it consistent because published benchmarks tend to be COGS-based by default.

How inconsistent time periods lead to misleading results

The biggest reason why inconsistency in time periods leads to misleading results is the need for the day count to match the COGS it multiplies. If the number above ($3,650,000) were replaced by the one that’s four times smaller ($912,500), the resulting DPO would be 180 days instead of 45, overestimating the actual value several times over.

Incorrect DPO assumptions send decisions the wrong way: an inflated figure pushes teams to rush payments and give up cash earlier, while a deflated one encourages delaying payments that were already on time.

Why ignoring accruals and one-time payments skews Accounts Payable Days

Neither accruals nor one-time payments appear in the payable balance the same way regular supplier invoices do. As such, the ratio stops reflecting actual payment behavior. Most of the distortion stems from two situation types:

• Goods or services received but not yet invoiced get booked as accrued liabilities, sitting outside accounts payable. The more of these a company has, the lower its DPO appears to be.
• A large equipment purchase or a one-off catch-up payment on an old invoice has the power to swell or shrink the balance on the reporting date, moving DPOs by several days without changing any routine behaviors.

Try to keep notes payable out of the calculation, too — formal borrowing gets recorded separately from supplier invoices. If you have somewhat lumpy purchasing patterns, it might also be a good idea to calculate DPOs over a longer time period or explicitly flag the affected months during result comparison.

When the average accounts payable gives a false signal

If your balance fluctuates greatly throughout the period, the average can be an inaccurate indicator because it never shows what occurs in between.

If your seasonal business has a $300,000 balance in January and December, but hits $800,000 in the summer, the beginning-and-end average is $300,000, identical to a business whose balance never moved, even though your payment pressure was significantly different. In that case, a more realistic picture could be acquired by performing separate calculations per quarter or using monthly balances to calculate the average.

Accounts Payable Days calculation examples and scenarios

DPO varies by industry because purchasing patterns, supplier terms, and operating costs differ. These examples show how retail, manufacturing, and service-based businesses calculate Accounts Payable Days and interpret the results.

How do you calculate Accounts Payable Days for a retail business?

Retail businesses rely on a standard formula where the cost of their merchandise sold is treated as COGS, resulting in some of the shorter figures in any sector due to how quickly their stocks turn. Let’s take a store chain with an average payables balance of $1,800,000 and an annual COGS of $21,900,000 to calculate:

This chain carries 30 days of supplier credit with a daily COGS of $60,000. If inventory turns in under 30 days, most of the stock leaves the shelves before the invoice payment falls due. Suppliers are effectively financing the shelf. If that value drops to 20 days, though, it would be worth it to consider whether the contract terms have changed or you are paying the invoices earlier than optimal.

What is a typical Accounts Payable Days calculation for a manufacturing company?

Manufacturing companies often work with longer DPOs than most, with DPOs typically in the 45–90-day range due to them buying materials in bulk and working with long production cycles. Our example here would be a manufacturer with an average payables balance of $12,000,000 and an annual COGS of $73,000,000:

That figure also has a certain caveat. Manufacturing COGS also adds direct labor cost to the mix, paid through payroll and never sitting in accounts payable. Dividing by the full COGS in that case would simply understate how long suppliers have to wait. If only $45,000,000 of that COGS was in materials and purchased components, using it for DPO calculation would result in ($12,000,000 / $45,000,000) x 365 = 97 days for supplier payments specifically. Both options are viable, technically speaking, but they should be applied consistently in the long run to make sure that you glean the correct information from trends and other similar analyses.

A high manufacturing DPO also has to be aware of the reliability of the supply chain. If a manufacturing plant has to wait for more than a quarter of a year to pay a sole-source component supplier, it would risk being cut first when materials are scarce.

How do Accounts Payable Days calculations differ for service-based businesses?

Instead of COGS, service-based businesses use their operating costs that suppliers actually invoice (since most companies in this field report either low or zero COGS to begin with). A consulting firm using $4,000,000 of non-payroll costs for software and subcontractors with an average payables balance of just $400,000 would get the following results:

Since the base is a judgment call, a service firm’s DPO would be more efficient when tracked against its own history: not a lot of companies in this field tend to use the same calculation methods to compare against.

Accounts Payable Days vs. Accounts Payable Turnover Ratio

Days Payable Outstanding and the Accounts Payable Turnover Ratio measure supplier payment patterns from different perspectives. Understanding how they relate helps you assess payment frequency, compare performance, and interpret changes in working capital.

What is the Accounts Payable Turnover Ratio?

The Accounts Payable Turnover Ratio provides insight into the frequency of paying your average supplier balance during a defined period. For example, an accounts payable turnover ratio of 8 translates to your company paying approximately 8 cycles of supplier invoices each year. An accountant or an investor watches this metric as a general assessment of the payment pace:

• High ratio = fast payment cycles
• Low ratio = either slow payment or heavy reliance on supplier credit

How do you calculate the Accounts Payable Turnover Ratio?

The Accounts Payable Turnover Ratio divides the cost of goods sold by average accounts payable:

The textbook version of this formula places net credit purchases instead of COGS, as the purchases are the ones measuring what was actually bought on credit. In practice, you’ll find most businesses choosing COGS because purchase amounts are not usually broken out in the statements. In any case, the choice of a measuring value should match the one chosen for DPO calculation.

The ratio would also differ depending on the covered period: a figure built from one quarter of COGS would show a quarterly ratio and cannot be compared with annual numbers until you multiply it by four or recount the same value for the entire year.

Taking the company we used in Step 4 as an example once again, we can get annual COGS of $3,650,000 with an average payables balance of $450,000, with a total ratio of 8.1 — the company pays off its supplier balance a bit more than eight times per year, or somewhere around every 45 days.

What is the difference between DPO and the AP Turnover Ratio?

The two describe the same payment behavior from opposite ends of a spectrum:

• DPO counts the days a balance remains unpaid;
• The turnover ratio counts how many times the balance was paid off in a period.

They can even be converted directly into each other:

Using the same example as before, a turnover ratio of 8.1 equals about 45 days of DPO. Since the two values are inversions of each other, they also move in opposite directions. A falling ratio means a rising DPO, and vice versa.

Let’s say that the previous terms of the same company were net-30, with the average payables staying at $300,000. Performing the same calculation as before, we can see that the turnover ratio here would’ve been 12.2, which is higher than 8.1, matching the lower 30-day DPO.

DPO helps your conversations with suppliers and treasury teams by allowing the value of “45 days” to be checked directly against a net-45 contract. As for the ratio, it’s much more common in credit analysis, where it sits together with other turnover-related metrics, like inventory or receivables turnover. It would cost nothing to report both at the same time — one is derived from the other, after all — but companies should choose one of them as the headline number ahead of time so that readers don’t have to convert them each time.

How does DPO relate to the cash conversion cycle?

Days Payable Outstanding directly affects your cash conversion cycle by determining how long you can hold cash before paying suppliers. Understanding how DPO works alongside inventory and receivables helps you identify ways to reduce working capital needs without straining supplier relationships.

What is the cash conversion cycle, and why does it matter?

The cash conversion cycle (CCC) is the time that passes between the day you pay for inventory and the day that you get paid by your customers for the resulting sales. And it’s important because the longer this period lasts, the more of your own (or borrowed) cash you have to use to fund yourself. A shorter cycle results in lower financing needs; that cycle can even be negative in certain businesses that sell before they pay suppliers.

How do DPO, DSO, and DIO work together?

DPO is an essential component in the cash conversion cycle, and the only component that’s subtracted in the calculation. DIO (days inventory outstanding) and DSO (days sales outstanding) add days instead:

• DIO counts how long stock remains before it sells.
• DSO counts how long customers take to pay.

Their combination forms the operating cycle: the complete stretch from the inventory purchase to cash collection. DPO works differently, though, as the days a company takes to pay its suppliers are all days the company holds the money.

The example company from Step 4 can be used to show how these pieces line up together, if we take its annual revenue as $5,840,000 alongside its $3,650,000 of COGS:

Only COGS and payables carry over from Step 4, while the other figures are illustrative assumptions chosen to create round-day counts. When it comes to actual calculations, inventory and receivables should come from the balance sheet. The income statement could supply the revenue numbers in the meantime.

DIO and DPO use COGS for calculations, but DSO uses revenue instead. However, all three metrics come out in days, so they can be added and subtracted when needed. The above-mentioned example waits 98 days to turn stock into collected cash; 45 days of supplier credit offset part of that weight, leaving 53 days to finance.

What happens when you optimize all three metrics?

All three levers have their limits, but if you lean on all three at once, you can really accelerate your cash conversion cycle and cut back on your required finance. Lowering DIO and DSO and increasing DPO shrinks your cycle — a hallmark of efficient supply chain management. You can see these effects on a simple cycle of adding five days to DPO and subtracting five days each from DIO and DSO, which would compress your cycle from 53 days down to 38 days. You would notice this reduction in your credit line or in the cash required to fund growth, since these same sales would need less working capital.

Both customers and suppliers push back on terms that become less favorable to them. Leaner stock raises the risk of stockouts. Even the gains interact: requesting longer terms can lead to higher prices, which would eat into the savings of the shorter cycle.

How can you use DPO to shorten your cash conversion cycle?

Every additional day of DPO reduces the cash conversion cycle by one day, as DPO is subtracted from the overall formula. Four major practices are used to raise this value without straining supplier relationships:

1. Paying on the due date is the simplest gain here, considering that invoices paid days before the due date simply hand supplier credit back to them for nothing.
2. High-volume suppliers are the most likely to accept longer terms, marking them as the prime renegotiation targets.
3. If you can get an early-payment discount, make sure that it beats what you’ve made on that same cash.
4. DSO and DIO have to be watched alongside DPO, if only to be sure that the DPO gains won’t disappear due to receivables or inventory slowing down by the same number of days.

Accounts Payable Days vs. liquidity metrics

DPO and liquidity ratios offer different insights into your company’s financial health. While liquidity ratios show your ability to cover short-term obligations, DPO reveals how quickly you pay suppliers. Tracking both helps you assess cash availability and spot potential payment risks.

DPO vs. liquidity metrics

Liquidity metrics (current/quick ratio) reveal whether a company can use its assets at any point in time to fulfill its short-term obligations. In the meantime, DPO measures how fast a company pays invoices from its suppliers. A liquidity ratio can be seen as a snapshot of balance-sheet strength, and DPO is a speed measured over a time period.

The way these two interact in a business context can be somewhat surprising. Take a company that has $1,500,000 in current assets and $1,000,000 of current liabilities, resulting in a ratio of 1.5. Paying a $100,000 supplier invoice would cut cash and payables by the same amount, with the ratio rising to 1.56 ($1,400,000 / $900,000), but the company now holds less cash than before. You can also delay that payment to keep the ratio at 1.5 and cash in the bank.

That said, a ratio alone won’t show what the catalyst was for the current situation — meaning DPO can add the missing context to it.

Selecting the right metric

The metric should match the question asked. If the question is about payment speed, use DPO or the AP turnover ratio from the section above. If it’s about the ability to cover short-term debts, you can choose either the current or quick ratio instead. You can get a more reliable picture of your business by tracking at least one metric from each group every quarter — you’ll need that in situations where, let’s say, a healthy liquidity ratio exists in the same company as a DPO going way past the supplier terms.

What factors affect your Days Payable Outstanding?

Your DPO depends on several factors, from supplier payment terms to purchasing patterns and cash flow needs. Understanding these influences helps you identify opportunities to improve payment timing without compromising supplier relationships.

How do payment terms with suppliers impact your DPO?

Payment terms are the ceiling value for a company that pays on time, so DPO often sits close to the weighted average of what kind of terms their agreements with the suppliers state. If a company has 60% of its spend on net-30 terms and 40% on net-60, a company would report a DPO of about 42 days (0.6 x 30 + 0.4 x 60). Any figure below that value is early payment; anything above is late payment. Fortunately, terms are also subject to negotiation, so the average company would have at least some room to move payment deadlines. How much exactly? That would depend on how much it spends with each supplier and how difficult it would be to switch.

What role does your company's cash position play?

The cash position of your company has a huge impact on how quickly you can pay your bills. When cash is not a concern, you can pay your invoices early and take advantage of the appropriate discounts, deliberately decreasing your DPO. Whenever the company’s actually strapped for cash, it’s far more likely to pay at or past the due date, often out of necessity instead of anything malicious. A combination of rising DPO and a shrinking cash balance is something to investigate first.

How do early payment discounts affect DPO decisions?

Early payment discounts motivate companies to make the payment early. The more discounts you take, the lower your DPO will be, but whether that trade is worthwhile will be decided by the return the discount represents.

For example, if the discount is 2/10 net 30, you’ll be getting a 2% discount for paying within 10 days, with the full amount due on day 30. For a $100,000 invoice, paying on day 10 costs $98,000, resulting in a $2,000 saving for releasing the cash 20 days earlier. The annualized return of that saving alone is about 37% (2 / 98 x 365 / 20), which is a lot higher than what most companies can get on idle cash or pay on a credit line.

After that, the invoice would only add 10 days of DPO instead of 30, resulting in a lower DPO being the “right” outcome. Your best bet would be to look at DPO as the result of these decisions, taking each discount whose annualized return beats the company’s cost of funds.

What impact does seasonality have on your DPO?

Payables following purchases and COGS following sales are both the reasons why seasonality moves DPO in any way. A retailer focusing on large-scale purchases in September for holiday demand would have a large payables balance before the sales arrive and a large COGS in winter when the goods sell.

The quarterly DPO would rise in autumn and fall in winter this way, potentially disrupting the plausibility of analysis unless you compare the same quarter YoY or use a trailing twelve-month figure in your calculations instead.

How does company size influence typical DPO ranges?

Bargaining power plays a big role in why company size can affect DPO in any way. Larger companies purchase large volumes of goods and can negotiate longer terms for that, resulting in higher DPOs. According to The Hackett Group’s 2025 working capital survey, the 1,000 largest US publicly traded nonfinancial companies averaged a 59-day DPO. Large buyers can also often provide supply-chain financing, letting the supplier get paid early while the buyer keeps its long terms.

Small and mid-sized businesses work on the other side of the bargain. A UK government survey of about 300 businesses states that micro businesses were more than twice as likely as average to be required to pay suppliers within 7 days, while small businesses were more likely than average to pay suppliers later than their contract terms. A combination of short terms and tight cash limits results in their DPOs landing practically anywhere in a generous range.

How can you improve your accounts payable days?

Getting your DPO higher starts with knowing what you owe, and when, to negotiate more advantageous terms and glean discounts when you're able to see payment dates before they arrive. You can extend your DPO without damaging supplier relationships by staying ahead through active payables management. A tool that shows upcoming obligations in real time lets you see where payment timing can shift.

How tools like Precoro improve visibility into payables

Accounts payable automation tools show finance teams what they owe, to whom, and when. You don’t have to chase invoices across inboxes and spreadsheets. Outstanding invoices, due dates, and supplier payment terms are all in one place, so you can pick the best payment date before the deadline. The same data also shows spending patterns that manual processes tend to hide.

Precoro is an agentic procurement and AP automation platform that covers the whole intake-to-pay process. For payables, its AI Crews and core features help you:

• Capture invoices without manual data entry. Suppliers send invoices to your dedicated AP Inbox. Invoice Processing from the AP Automation Crew pulls out the data and creates a prefilled invoice draft. Non-standard invoices, like raw text, external links, or CSV files, first go to the AI agent for Invoice Extraction, which turns them into a readable, consistent format. Your team only reviews and approves the invoice.
• Match invoices to the right PO. The Matching Agent finds the right purchase order for each invoice, even when details are inconsistent.
• Catch errors before you pay. Risk Insights in the AI Assistant flags anomalies, duplicate invoices, and mismatches. That helps you catch costly errors before payment.
• Give suppliers a self-service channel. In the Supplier Portal, suppliers submit invoices for received orders and track each invoice’s status, from Matching to Paid, without emailing your team.
• Keep approvals and invoice reconciliation in one system. Requests, POs, receipts, and invoices all live in Precoro, so you don’t have to jump between tools to reconcile them.
• See where your money goes. Spend Analysis in the AI Assistant breaks down spend by department, vendor, project, or item on demand. That helps you find consolidation opportunities.

Better visibility also makes supplier relationships stronger, because fewer payment errors mean more predictable, on-time payments. With procurement and AP in one place, you can manage DPO on purpose instead of just paying whatever’s due next.