AP Aging Analysis — Payables Buckets
Segregate payables by due date. Find which invoices are overdue, and spot the real cost of skipping early-payment discounts.
Accounts Payable Aging
Same logic in reverse — these are bills you owe.
Total AP
$40,000
30+ days overdue
$15,000
Stretching payables is a free cash-flow lever — but credit-bureau hits and supplier-relationship damage show up by day 60. Don't take it past 45 days unless you've negotiated extended terms.
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Early-payment discounts have a real interest rate
Terms written 2/10 net 30 mean 2% off if you pay within 10 days, or the full amount by day 30. Declining that discount to keep the cash 20 extra days is not thrift — it is borrowing, at a rate you can calculate.
The standard formula annualises it:
(discount ÷ (1 − discount)) × (365 ÷ extra days)
The 1 − discount matters: you are effectively borrowing 98 cents, not a dollar, so the cost is measured against what you actually keep. For 2/10 net 30 that gives (0.02 ÷ 0.98) × (365 ÷ 20) = 37.2% a year, or about 44.6% if you compound it across the 18.25 twenty-day periods in a year.
Either way the conclusion is the same, and it is stark: skipping early-payment discounts is more expensive than almost any bank facility you could arrange instead. The rate scales with how short the discount window is — 1/10 net 30 works out near 18%, and 2/10 net 45 near 21%, because the longer you get to keep the money the cheaper the borrowing becomes.
The point is not to pay everything immediately. It is that a cash forecast which is too vague to tell you whether you can afford the discount is itself costing you 37% a year.
Aging separates timing from totals
A single payables figure hides the schedule underneath it. This tool splits the balance into 0–30 days, 31–60 and 60+, and flags when bills more than 30 days overdue exceed 30% of the total.
That is the practical value: sequencing. Seeing what falls due when, and matching it against expected receipts, is very different from discovering a large payment in the week it lands.
Using terms versus exceeding them
An important distinction that often gets moralised rather than analysed. Paying on day 30 of 30-day terms is simply using credit you were offered — and paying every invoice the day it arrives leaves free financing unused, which is its own small error.
Going beyond the agreed term is a different thing. Suppliers extend credit based on payment history, they talk to one another, and they prioritise reliable payers when stock is short. A business that habitually pays late may find its terms tightened to payment in advance at exactly the moment cash is tightest — the risk is real and it is correlated with your worst week rather than distributed evenly.
What this tool does and does not do
It buckets payables by age so you can see the shape of what you owe. It does not calculate the cost of skipped discounts, model how a supplier will react, or project cash forward.
For those, pair it with the cash-flow forecast to see which weeks are tight, and the DSO and DPO calculator to compare how fast you pay against how fast you collect — the gap between those two is where working capital is won or lost. General business information, not accounting or legal advice.
How to use the Accounts Payable Aging Analysis
Takes about a minute. No signup, no download, your data stays in your browser.
- 1Open the tool. Scroll up to the Accounts Payable Aging Analysis above — it loads instantly in your browser, no install needed.
- 2Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
- 3Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.
Frequently asked questions
Common questions about the Accounts Payable Aging Analysis.
What do the age buckets mean?
Zero to 30 days covers invoices still within typical terms. Thirty-one to 60 means overdue enough that suppliers have noticed and may be chasing. Beyond 60 days you are into territory where credit terms get reviewed and orders can be held. The tool also flags when more than 30 percent of your total payables is over 30 days late.
What does it really cost to skip a 2 percent early-payment discount?
On 2/10 net 30 terms, about 37 percent a year, or nearer 45 percent if compounded. The formula divides the discount by one minus the discount, then annualises over the extra days gained — you are borrowing 98 cents rather than a dollar, which the simpler calculation misses. Either figure is dearer than most business credit.
Why is the annualised cost so high for a small discount?
Because the borrowing period is short. Two percent for 20 extra days repeats roughly 18 times a year, so a small charge each time compounds into a large annual rate. Lengthening the window lowers it sharply — 1/10 net 30 is around 18 percent and 2/10 net 45 around 21 percent, since you keep the money longer for the same fee.
Is it wrong to use the full payment term?
No, that is what the term is for. Paying on day 30 of net 30 uses credit you were offered, and settling every invoice on arrival leaves free financing unused. The meaningful line is between using the agreed term and exceeding it, not between paying early and paying on time.
What is the actual risk of paying late?
That your terms get worse precisely when you can least afford it. Suppliers set credit on payment history, share information, and favour reliable payers when supply is short, so a pattern of late payment can convert into payment-in-advance demands during a cash squeeze. The risk correlates with your worst week rather than averaging out.
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