Key takeaways
What this article covers, in order:
- The double-counting trap
- The basic match
- Applying a vendor credit
- Partial payments on bills
- Early-payment discounts
- Payment fees and odd amounts
To match a bill to a bank payment, find the withdrawal in your bank feed, link it to the open vendor bill (or bills) it paid, and apply any vendor credits the vendor deducted. The bill closes, accounts payable drops, and the expense is counted once instead of twice.
It gets fiddly when one payment covers several bills, when a credit memo is involved, or when the amount is off by a discount or fee. Let's take those one at a time.
The double-counting trap
Here's what goes wrong. Natalie runs a small bakery-café in Portland. She enters her flour supplier's bill for $1,840 when it arrives, which records the expense. Two weeks later, the payment shows up in her bank feed. She's in a hurry, so she categorizes it as "Cost of goods sold."
Now that $1,840 is an expense twice. Her P&L shows lower profit than she really made, and her AP aging still says she owes the supplier $1,840. Next month, she might even pay it again.
The rule mirrors the one on the customer side: if you entered the bill, the payment isn't a new expense. It just settles the liability you already recorded.
The basic match
Bill #INV-5521 from Pacific Mill Supply: $1,840. Payment clears the bank on Oct 2, 2026 for $1,840.
Match the bank transaction to the bill. The entry:
| Account | Debit | Credit |
|---|---|---|
| Accounts payable | $1,840 | |
| Checking | $1,840 |
The expense was already recorded when the bill was entered. This just clears it.
Applying a vendor credit
Vendor credits (also called credit memos) are money the vendor owes you: for returned goods, damaged deliveries, billing errors or a negotiated discount. You record them as a credit against that vendor, then use them to reduce what you pay.
Example: two bills, one credit, one payment
In Sep 2026, Natalie gets two bills from Pacific Mill Supply and one credit memo for a damaged shipment:
| Document | Number | Amount |
|---|---|---|
| Bill | INV-5521 | $1,840 |
| Bill | INV-5547 | $2,260 |
| Vendor credit | CM-0918 | −$300 |
| Net due | $3,800 |
She pays $3,800 in one transfer. To match it:
- Record the vendor credit of $300 if it isn't already in the books (debit accounts payable, credit the original expense or inventory account, depending on what was returned)
- Apply the $300 credit to one of the bills, say INV-5547, leaving $1,960 due on it
- Match the $3,800 payment to INV-5521 ($1,840) and the remaining $1,960 on INV-5547
$1,840 + $1,960 = $3,800. Both bills close, the credit is used up, and the bank line matches to the penny.
What if you don't use the credit right away?
Leave it open against the vendor. It shows as a negative balance in your AP for that vendor and reduces the next payment. Just don't forget it. Old, unused vendor credits are free money people leave on the table.
Partial payments on bills
Sometimes you pay part of a bill, on purpose (a payment plan) or because part of the delivery is disputed.
Bill for $4,500, you pay $3,000. Match the $3,000 to the bill. It stays open with $1,500 due, and it keeps aging from its original due date.
Add a note to the bill saying why. Three months later, nobody will remember.
Early-payment discounts
A supplier offers 2/10 Net 30. You pay a $4,000 bill within 10 days and send $3,920.
Match the $3,920 payment to the bill, and record the $80 difference as a purchase discount (some businesses reduce cost of goods sold; others use a separate discount account). The bill closes in full.
| Account | Debit | Credit |
|---|---|---|
| Accounts payable | $4,000 | |
| Checking | $3,920 | |
| Purchase discounts | $80 |
Payment fees and odd amounts
Outgoing wire fee: you pay a $2,500 bill by wire and your bank takes a separate $30 fee. Match the $2,500 to the bill, and categorize the $30 as a bank fee. If the fee comes out in the same transaction ($2,530 total), split it.
Card payment with a surcharge: you pay a $1,000 bill by card and the vendor adds a 3% fee. The card statement shows $1,030. Match $1,000 to the bill and record the $30 as a fee or as part of the expense, depending on how your bookkeeper prefers it. Keep it consistent.
Checks that haven't cleared: you wrote a check for $975 on Sep 28, 2026, recorded the payment in your books, and it hasn't hit the bank yet. That's an outstanding check, and it's normal. It'll show up in a later statement and match then. Just make sure you don't record it a second time when it does.
Payments with no bill
Not every withdrawal has a bill behind it. A subscription charge, a fuel purchase, a one-off from a hardware store. Those you categorize directly to an expense account. That's fine, because there's no bill to double-count.
The decision at each bank line is simple: is there an open bill for this vendor? If yes, match. If no, categorize.
Reconciling vendor statements
For your main suppliers, reconcile their monthly statement against your AP balance for them. Differences usually come from:
- A bill the vendor sent that you never entered
- A payment you made that the vendor hasn't applied yet
- A credit memo one side has and the other doesn't
- A duplicate bill entered twice on your side
Do this for your top five or so vendors each month. It takes 15 minutes and catches the kind of mistakes that otherwise surface at year-end.
Quick reference
| Situation | Match how | Common mistake |
|---|---|---|
| One payment, one bill | Match to the bill | Categorizing as a new expense |
| One payment, several bills | Split across bills | Matching to just one and leaving the rest open |
| Payment net of vendor credit | Apply credit, then match payment | Recording the credit as income |
| Partial payment | Match; leave balance open | Editing the bill amount |
| Early-pay discount | Match payment; discount to purchase discounts | Leaving a tiny balance open |
| Fee in the same transaction | Split: bill plus bank fee | Matching the full amount to the bill |
| Outstanding check | Wait; it'll clear later | Recording it twice |
| No bill exists | Categorize directly | Creating a bill just to match it |
Month-end AP matching checklist
- [ ] Every bank and card withdrawal in the feed is matched or categorized
- [ ] No bill payments are coded to expense accounts
- [ ] Vendor credits are recorded and applied or noted
- [ ] Partial payments have a note explaining the open balance
- [ ] Outstanding checks are listed and less than 90 days old
- [ ] AP aging shows only bills you really owe
- [ ] Top vendor statements agree with your AP balance for them
How HelloBooks helps
Bills are included on every HelloBooks plan, including Free, along with the AP aging report, so you can record what you owe when it arrives. Record each payment against its bill rather than categorizing the bank line as a new expense. On the reconcile screen, each statement line gets an AI match suggestion with a confidence score and the reason it was picked; you work through the exceptions, and you can unmatch a wrong pairing in one click. That keeps your expenses counted once and your bank reconciliation clean. You can connect most US banks and credit cards, or upload a CSV statement for any account without a feed.
On Starter, AI auto-categorization handles the everyday withdrawals that don't have a bill, so you can focus on the ones that do. Pro adds bills & approvals and unlimited bank connections if you pay vendors from several accounts or cards. HelloBooks doesn't send vendor payments; you pay from your bank and record the result. For the bigger picture of what runs on autopilot and what still needs you, see automated bookkeeping.
FAQs
Why are my expenses too high on the P&L?
A common cause is bill payments categorized as expenses even though the bills were already entered. That counts each expense twice. Re-match those payments to the bills.
Is a vendor credit income?
No. A vendor credit reduces what you owe the vendor and usually reverses part of the original expense or inventory cost. It's not revenue.
How do I handle a refund from a vendor?
If the vendor sends money back for a credit memo, record the deposit against that vendor credit. It closes the credit, and the cash lands in your bank.
What if the payment amount doesn't match any bill?
Check for combined bills, vendor credits, discounts or fees in the same transaction. If you still can't explain it, ask the vendor for a remittance breakdown before matching.
Should I enter bills if I use cash-basis accounting?
Many cash-basis businesses still enter bills so they can track what they owe and when it's due. The expense counts on your cash-basis P&L when you pay. Ask your bookkeeper how your books are set up.
Enter the bill once, match the payment once, and keep the credits where you can see them.
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