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Accounts payable is money you owe a vendor for a specific invoice you have received, while an accrual is an expense you have incurred but have not yet been invoiced for, recorded as an estimate. Both are liabilities and both follow accrual accounting, but AP is backed by an actual bill with a known amount and due date, and an accrual is your own estimate booked to keep the period's expenses complete.
Mixing these two up is one of the most common month-end mistakes, and it distorts both the balance sheet and the expense that hits the income statement. This article draws a clean line between them, shows where each one lives in your books, and explains how goods-received-not-invoiced sits right in the middle.
Accrual vs accounts payable at a glance
| Attribute | Accounts payable | Accrued liability |
|---|---|---|
| Triggered by | A received vendor invoice | An expense incurred, no invoice yet |
| Amount | Exact, from the invoice | Estimated |
| Due date | Known, per payment terms | Not yet set |
| Vendor identified | Yes, a specific payee | Sometimes general |
| Balance sheet line | Accounts payable | Accrued liabilities / accrued expenses |
| Reversed next period? | No, paid down | Often reversed when the invoice arrives |
What is the difference between accruals and accounts payable?
The difference is whether an invoice exists. Accounts payable records a specific, invoiced obligation to a named vendor with an exact amount and a due date. An accrual records an expense you know you incurred during the period but for which no invoice has arrived, so you estimate the amount to keep your financials accurate. AP is confirmed and precise; an accrual is estimated and provisional.
Both belong to accrual-basis accounting, which records expenses when they are incurred rather than when cash goes out. That shared foundation is why they get confused. The clean test: if you are holding a vendor invoice, it is accounts payable. If you owe for something you received or used but have no bill for yet, it is an accrual.
Is accounts payable an accrual?
Accounts payable is a product of accrual accounting, but it is not an accrual in the sense accountants mean when they say "accruals." AP is a confirmed liability supported by an invoice. An accrual, as a separate balance-sheet category, is an estimated liability with no invoice behind it yet. So while both exist because you use the accrual method, they are distinct accounts: one holds invoiced bills, the other holds estimated expenses awaiting an invoice.
Under cash-basis accounting, neither would appear until you actually paid. Accrual accounting is what forces both onto the books in the period the expense belongs to, which is exactly why the method gives a truer picture of what a business owes at any moment.
What is an example of an accrual vs accounts payable?
Say your utility bill for December arrives on January 8 for $2,400. Because you used the electricity in December, you accrue an estimated $2,400 as an accrued expense on December 31, with no invoice in hand. That is an accrual. When the actual invoice arrives in January, you reverse the accrual and record $2,400 in accounts payable against the real bill, then pay it. The expense hit December (accrual), and the payable and payment happened in January (AP).
Another everyday example: employee wages earned in the last week of the month but paid the following month are accrued as an accrued liability, not accounts payable, because there is no vendor invoice. Interest owed on a loan but not yet billed works the same way. AP, by contrast, is the stack of supplier invoices sitting in your system waiting to be paid.
Where goods received not invoiced fits in
The clearest bridge between the two is goods received not invoiced, or GRNI. When you receive inventory or goods but the supplier's invoice has not arrived, you owe for them, but there is no invoice to record in accounts payable yet. So the value is accrued as a GRNI liability. When the invoice comes in, you clear the accrual and move the amount into accounts payable. GRNI is, in effect, a purchase accrual tied to a specific receipt.
This is why receiving and purchasing data matter so much at month-end. If you buy on purchase orders, your purchase order records and receiving logs are what tell you how much to accrue for goods that arrived without a bill. Get that wrong and either your period expense is understated or your payables are overstated. Our full guide to goods received not invoiced walks through how to track and clear it.
Why the distinction matters for close
Getting accruals and payables right is what makes month-end numbers trustworthy. If you book an expense as AP when no invoice exists, you overstate payables and may create a phantom bill. If you forget to accrue an incurred expense, you understate the period's costs and overstate profit. Both errors move once the invoice arrives, which is why accruals are usually reversed in the next period and replaced by the real payable. Clean accrual entries keep the income statement matched to the period the expense belongs to.
For AP teams specifically, the practical risk is at the seam: an accrued item and the eventual invoice both getting recorded as expenses, double-counting the cost. Reversing accruals when the invoice lands, and matching that invoice to the original receipt, is what prevents it. This is one more reason strong month-end close controls and clean matching pay off.
How automation keeps both accurate
Accounts payable automation tightens the whole cycle by capturing invoices the moment they arrive and matching each one to its purchase order and receipt. That means the instant a bill shows up for goods you accrued, the system ties it back to the original receipt, so the accrual clears and the payable is recorded without double-counting. Faster, cleaner invoice capture also shrinks the estimating you have to do at close, because fewer invoices are still missing when the books need to lock.
The foundation is getting invoices in early and structured, which is what invoice processing software and a vendor portal are built to do. When suppliers submit invoices at the source and matching runs automatically, the line between what should be accrued and what is a firm payable stays sharp. See how accounts payable software handles the full invoice-to-payment cycle to keep both accounts clean.
The bottom line
Accounts payable is an invoiced, exact, due-dated liability to a named vendor; an accrual is an estimated liability for an expense you incurred but have not been billed for. Both come from accrual accounting, but only AP is backed by a bill. Goods received not invoiced is the bridge between them. Keep accruals reversed and invoices matched to receipts, and your close stays accurate.