Accounts Payable and Receivable Management: Run Them Together

Accounts payable and receivable management means controlling both sides of your trade credit at once: how fast customers pay you (receivables, AR) and how fast you pay suppliers (payables, AP). Managed together, they set your cash conversion cycle, which is roughly how many days your money is tied up between paying for stock or labour and collecting cash from the sale.

Many small businesses run AP and AR as separate chores. One person chases customers when the bank balance looks thin; someone else pays suppliers when the reminders get loud. The result is cash that arrives and leaves at random. This guide shows how the two connect, the three numbers worth tracking, a worked example, and a weekly routine that keeps both sides under control.

Why AP and AR belong on the same desk

Receivables are money customers owe you. Payables are money you owe suppliers. Both sit on the balance sheet as current items, and the gap between their timing is what you finance from your own cash or an overdraft.

Look at the two sides in isolation and you make poor decisions. A business that pays every bill the day it arrives, while giving customers 60 days, is lending money to its customers using its own working capital. A business that stretches suppliers to 90 days while collecting in 20 may look cash-rich, but it risks supply interruptions, lost early-payment discounts and a reputation that makes future credit harder to get. The useful question is not "how fast should we pay?" or "how fast should we collect?" but "what is the right gap between the two, given our margins and our suppliers?"

The three numbers that connect payables and receivables

Finance teams usually measure working capital management with three ratios. Formulas vary slightly between textbooks (some use period-end balances, some use averages), so pick one method and use it consistently.

• Days sales outstanding (DSO) — average accounts receivable ÷ revenue × 365. How many days, on average, customers take to pay.
• Days payables outstanding (DPO) — average accounts payable ÷ cost of goods sold × 365. How many days, on average, you take to pay suppliers.
• Days inventory outstanding (DIO) — average inventory ÷ cost of goods sold × 365. How long stock sits before it is sold. Service businesses with no stock can skip this.

The cash conversion cycle combines them: DIO + DSO − DPO. Payables are subtracted because supplier credit finances part of the cycle for you. A shorter cycle means less cash tied up in operations.

Worked example: a furniture workshop's cash cycle

Take a 14-person furniture workshop in Auckland that makes dining tables for retailers and interior designers. Its figures for the last financial year are:

• Revenue: $2,400,000
• Cost of goods sold: $1,560,000
• Average accounts receivable: $320,000
• Average accounts payable: $150,000
• Average inventory (timber, hardware, work in progress): $260,000

Step 1: DSO. $320,000 ÷ $2,400,000 × 365 = 48.7 days. Its stated terms are 30 days, so customers are paying, on average, almost three weeks late.

Step 2: DPO. $150,000 ÷ $1,560,000 × 365 = 35.1 days. The workshop pays suppliers in about five weeks.

Step 3: DIO. $260,000 ÷ $1,560,000 × 365 = 60.8 days.

Step 4: cash conversion cycle. 60.8 + 48.7 − 35.1 = 74.4 days. From the day the workshop pays for timber to the day it collects for the finished table, its cash is out for about two and a half months.

Step 5: what tightening collections is worth. Suppose the owner brings DSO down to 40 days by invoicing on delivery instead of at month end and sending reminders before the due date. Receivables at 40 days of revenue would be $2,400,000 × 40 ÷ 365 = $263,014. That is $320,000 − $263,014 = $56,986 of cash released, without borrowing anything or raising prices.

Step 6: check the payables side. The owner then looks at AP. Its main timber supplier offers 2% off for payment within 10 days. On a $40,000 monthly timber bill, taking the discount saves $800 a month but means paying about 25 days earlier than the current habit. Because the freed-up receivables cash now covers that, the owner takes the discount on timber and keeps paying other suppliers on their normal due dates. Paying on the due date, not before and not after, is usually the right default for suppliers without a discount.

None of these steps required new financing. They required looking at both ledgers on the same day.

A weekly AP and AR routine

A short, fixed routine beats occasional cash panics. Something like this works for most small and mid-sized businesses.

Receivables (Monday)

• Run the AR aging report and look at anything past due, sorted by value.
• Confirm reminders went out for invoices falling due this week, and call the largest overdue customers rather than emailing again.
• Apply customer payments and advances to the right invoices so the aging is accurate.
• Review credit limits for customers whose balances keep growing.

Payables (Wednesday)

• Run the AP aging report and list bills due in the next 14 days.
• Confirm each bill has been approved and, for goods, matched to the order and delivery.
• Decide which early-payment discounts are worth taking.
• Schedule payments for their due dates and check that the total fits the cash forecast.

Together (Friday)

• Update a 13-week cash forecast from expected receipts (AR by due date, adjusted for each customer's real payment habits) and committed payments (AP by due date).
• Reconcile the bank account so that both ledgers reflect what actually cleared.
• Check for any customer who is also a supplier, and decide whether the balances should be settled against each other.

When a customer is also a supplier: netting balances

It is common for two businesses to buy from each other. If you owe a partner $12,000 and it owes you $9,000, you might agree to settle the difference of $3,000 rather than make two payments. Get the agreement in writing, record it in the books by clearing both balances, and keep the gross amounts visible in your records.

For financial reporting, the bar for showing such balances net is higher. Under IAS 32, a financial asset and a financial liability are presented net only when you have a legally enforceable right to set off and you intend to settle net or simultaneously. Without both conditions, the receivable and the payable stay on the balance sheet as separate amounts.

Common mistakes in managing payables and receivables

• Paying early by habit. Paying a bill weeks before it is due, with no discount, gives away free credit you negotiated.
• Paying late as a strategy. Stretching suppliers past agreed terms damages relationships and may attract late-payment interest where local law allows it.
• Invoicing late. Every day between delivery and invoice adds a day to DSO. Invoice when the work is done.
• An inaccurate aging report. Unapplied payments, unrecorded credit notes and stale disputes make both agings useless. Clean them up monthly.
• Looking only at totals. A healthy average DSO can hide one large customer who is 120 days overdue. Review the detail, not just the ratio.

hellobooks< / a > -helps-you-manage-ap-and-ar-together">How HelloBooks helps you manage AP and AR together

HelloBooks keeps both ledgers in one set of books. On the receivables side, you can send invoices with payment links for online payment through Stripe, Razorpay or PayPal, set automated reminders for overdue invoices, record customer advances, and send customer statements that show aging. On the payables side, bills move through approval workflows, can be matched to purchase orders and goods receipt notes with 3-way matching, and can be scheduled to pay on their due date; vendor prepayments and vendor statements are tracked alongside.

AR and AP aging reports, the cash flow statement and the CFO dashboard draw on the same data, and bank feeds with find-and-match keep receipts and payments tied to the right invoices and bills. You decide the terms and the priorities; the software keeps the numbers current so the Friday review takes minutes.