The Accounts Payable Process: 6 Steps and How to Improve It

I have watched a lot of finance teams drown in accounts payable, not because the process is hard, but because it never stops. Invoices arrive every day, half of them have a problem, and someone has to make every one right before it gets paid. Here is the process, where it actually breaks, and the honest options when your team cannot keep up.

The 6 steps of the accounts payable process

1. Receive and log the invoice

The invoice arrives by email, portal, or paper, and gets logged into your accounting system. Capture the vendor, amount, date, and terms. This is where dirty intake starts the whole cycle off wrong, so the data has to be clean from the first keystroke.

2. Match it (2-way or 3-way)

Compare the invoice to the purchase order, and for goods, to the receiving report. A 2-way match checks the invoice against the PO. A 3-way match adds the receiving report. If quantity and price agree, it clears. If they do not, it becomes an exception, and exceptions are where the hours go.

3. Code it to the ledger

Assign the general ledger account and cost center so the expense lands in the right place. Get this wrong and your reporting is wrong, which someone discovers at month-end when there is no time to fix it.

4. Route it for approval

Send the verified invoice to the right manager. This step looks trivial and is the single biggest cause of late payments, because approvers are busy and invoices sit in inboxes.

5. Pay it

Schedule and issue payment by ACH, wire, or check, on the vendor's terms. Done well, this is also where you capture early-payment discounts, which is real money most teams leave on the table.

6. Record and reconcile

Record the payment, clear the liability, and reconcile AP to the general ledger so the books are accurate and audit-ready.

Where the AP process breaks at scale

The steps stay the same whether you process 50 invoices a month or 5,000. What changes is the load. At volume, three things fail first: exception handling eats your senior people's time, approval chasing turns into a part-time job, and month-end becomes a scramble because reconciliation got pushed all month. None of that is a process problem. It is a capacity problem.

Automate, hire, or outsource

You have three honest options. Automation software (Bill.com, Tipalti, Stampli) captures invoices and routes approvals, and it is worth having. But software does not resolve a mismatched invoice, call a vendor, or own your month-end close. Hiring an in-house AP clerk costs $45,000 to $55,000 a year fully loaded and takes weeks to fill. Outsourcing gives you a dedicated, pre-trained AP specialist who runs the whole process inside your existing tools. Most growing companies land on a mix: software for the flow, a dedicated team to actually run it.

When to outsource accounts payable

Outsource AP when your finance team is spending more time processing invoices than analyzing the business, when late payments are straining vendor relationships, or when month-end keeps slipping. A dedicated accounts payable outsourcing team handles intake, invoice data entry, matching, coding, approval routing, and reconciliation, under US management and ISO 27001 security. You keep approvals and control. They handle the volume.

It is the same logic that applies across finance and accounting outsourcing: hand off the repeatable work, keep the judgment in-house.

FAQs

What are the steps in the accounts payable process?

Six: receive and log the invoice, match it to the purchase order and receiving report, code it to the ledger, route it for approval, pay it by ACH, wire, or check, then record and reconcile.

What is a 3-way match in accounts payable?

It compares the vendor invoice, the purchase order, and the receiving report before payment. If all three agree on quantity and price, the invoice clears. It is the main control against overpayments and duplicate or fraudulent invoices.

What is the difference between accounts payable and procure-to-pay?

Procure-to-pay is the full cycle from raising a PO to paying the vendor. Accounts payable is the back half: receive, match, approve, pay, reconcile. AP sits inside P2P.

How much does it cost to outsource accounts payable?

A US in-house AP clerk costs roughly $45,000 to $55,000 a year loaded. A dedicated outsourced AP specialist runs a fraction of that. Acelerar teams start at $7 an hour with no setup fee and deploy in 7 days.

Spending more time processing invoices than running the business? Get a custom quote. Dedicated AP teams deploy in 7 days, US-managed, ISO 27001 certified.