How to Pay a Business Invoice Correctly and On Time

Read the invoice before you pay it

Confirm the vendor, invoice number, date, amount, payment terms and what was actually billed. Never pay an invoice you cannot match to a real order.

Start by checking the basics. Does the vendor name match who you buy from? Is the invoice number new, or have you already paid it? Do the quantities, prices and taxes match your order or contract? Are the payment terms what you agreed?

Common terms look like these: Net 30 means payment is due 30 days from the invoice date, and 2/10 Net 30 means a 2 percent discount if you pay within 10 days, otherwise the full amount in 30. Learn the difference between a bill and a request for payment in invoice vs. bill.

If something is off, contact the vendor before paying. Our guide to handling invoice disputes explains how to document a problem and resolve it.

Match the invoice to your records

Use a three-way match: the purchase order, the delivery or work record and the invoice should agree before you approve payment.

Even a small business benefits from a simple matching routine:

1. Purchase order or agreement. What did you agree to buy and at what price?
2. Receiving record. What did you actually get, and when?
3. Invoice. Does the bill reflect the first two?

If the numbers disagree, pause. Short shipments, price changes and duplicate charges are common. Keep a folder, digital or paper, for each vendor so you can find past invoices quickly. Good records also feed your bookkeeping. See accounts payable for how the process fits into your books.

Choose a payment method

ACH transfer is usually cheap and traceable, checks are slow but familiar, cards are fast but may carry fees, and wires are fastest but cost more.

Learn more about electronic transfers in ACH transactions small business owners need to know. Always get payment instructions from a source you trust, and call the vendor on a known number if bank details change.

Guard against invoice fraud

Fake invoices and altered bank details are common scams. Verify new vendors and any change in payment instructions by contacting the vendor directly.

Criminals send invoices for services you never ordered or pose as a real supplier asking you to update their bank account. Protect your business:

• Confirm every new vendor before adding them.
• Call a known phone number to verify any change in bank details. Do not rely on the email that announced the change.
• Require two people to approve large payments when possible.
• Review bank activity weekly so you can spot odd transactions quickly.
• Train staff who open email to question urgent payment requests.

For wider protections, see our cybersecurity guide for small business.

Record the payment and keep proof

Mark the invoice paid, note the date and method, attach the confirmation, and file it by vendor. Your bookkeeping and taxes depend on this record.

After you pay, update your accounting system the same day. Record the payment date, amount, method and any confirmation number. If you pay by check, note the check number. Keep the confirmation with the invoice so you can answer any question later.

Reconcile your bank account each month so you catch missing or duplicate payments. The steps appear in bank reconciliation. Also keep records long enough to satisfy tax rules, and see how long to keep business records.

Time your payments to protect cash flow

Pay on the due date, not early, unless an early-pay discount beats your cost of cash. Schedule payments so they line up with when money comes in.

Paying early feels responsible, but it can drain cash that you need for payroll or rent. Use the due date unless a discount is worth it. For example, a 2 percent discount for paying 20 days early on a $10,000 invoice saves $200. Spread over 20 days, that is a high annualized return, so taking the discount often makes sense if you have the cash. Compare it with the true cost of any financing you would use to pay early.

If cash is tight, call the vendor before the due date and ask for a short extension or split payment. Do not simply skip the invoice. If you find yourself regularly short at payment time, you may have a working-capital gap. A business line of credit can let you take discounts and pay on time, then repay as customers pay you. ROI Funder considers 500+ FICO, 6+ months in business and $20,000+ monthly revenue.