Notes Payable vs. Accounts Payable: Two Liabilities, Two Very Different Promises

Accounts payable is what a business owes suppliers on open invoice terms, usually without interest or a separate signed agreement. Notes payable are written promises to pay a set amount by a stated date, usually with interest.

Both sit on the liability side of the balance sheet, and both can be due within the year, which is why they get confused. The difference shows up in the paperwork and in what happens when a payment is late. Miss an invoice due date and you have an unhappy supplier. Miss a note's maturity date and you've breached a contract.

Key Takeaways

• Accounts payable comes from supplier invoices on trade terms. Notes payable come from a signed promissory note with a principal amount, interest rate, and maturity date.

• Both can be current liabilities. A note due within 12 months is current, and so is the portion of a long-term note due in the next year.

• SEC rules for balance sheet presentation keep amounts owed to trade creditors separate from amounts owed to banks for borrowings.

• A past-due supplier balance can be converted into a note. When that happens, the balance leaves the AP aging report and starts accruing interest.

• A supplier note usually means the payables process broke down earlier. Terms discipline and scheduled payments keep vendor balances as ordinary payables.

What is the difference between notes payable and accounts payable?

Accounts payable is an informal, usually interest-free obligation created by a supplier invoice. A note payable is a formal, signed obligation that carries a stated interest rate and a fixed maturity date, owed to a lender or sometimes to a supplier.

Both can be current liabilities at the same time, and many companies carry both. The balance sheet still keeps them on separate lines, because a reader judging liquidity wants to know how much of the company's short-term debt is ordinary trade credit and how much is borrowed money with interest and covenants attached.

What are notes payable?

Notes payable are amounts a company owes under a written promissory note. The note commits the borrower to repay a principal amount, usually with interest, on a set schedule, and it's legally enforceable on its own terms.

A promissory note normally spells out these elements:

• The principal, or amount borrowed

• The interest rate and how it's calculated

• The maturity date and any installment schedule

• What counts as a default and what happens next

• The signatures of the borrower and lender

Most notes payable come from bank borrowing, and the scale is large. According to the Federal Reserve Board's H.8 release on assets and liabilities of commercial banks, commercial and industrial loans at all U.S. commercial banks stood at $2,970.9 billion, seasonally adjusted, for the week ending September 30, 2026. Smaller companies borrow often, too. The Federal Reserve Banks' Small Business Credit Survey: 2026 Report on Employer Firms, based on 6,525 responses fielded from September to November 2025, found that 38% of surveyed firms applied for a loan, line of credit, or merchant cash advance in the prior 12 months. Among those surveyed firms, 86% use financing regularly, and only 42% of applicants received the full amount they sought.

What are accounts payable?

Accounts payable are the amounts a company owes suppliers for goods and services bought on credit. They're created by invoices on trade terms such as net 30, and they're usually paid without interest if paid on time.

There's normally no separate signed agreement behind an individual payable. The purchase order, the invoice, and the supplier's terms and conditions define the obligation. The basics of accounts payable cover how invoices move from receipt to payment, and the mirror image on the selling side is explained in the comparison of accounts payable and accounts receivable.

How do notes payable and accounts payable appear on the balance sheet?

Accounts payable always appears as a current liability. Notes payable appear as current liabilities if due within 12 months and as noncurrent liabilities if due later, with the next year's principal on a long-term note shown as current.

U.S. public companies follow SEC Regulation S-X, Rule 5-02, which sets the balance sheet captions for commercial companies. Caption 19, "Accounts and notes payable," requires amounts payable to banks for borrowings to be shown separately from amounts payable to trade creditors. Accrued items such as accrued interest go under caption 20, "Other current liabilities." Private companies aren't bound by Regulation S-X, but most follow the same separation because lenders and auditors expect it, and FASB's Liabilities topic, ASC 405, governs how the obligations themselves are recognized.

The separation matters because trade credit is enormous. According to the U.S. Census Bureau's Quarterly Financial Report for the second quarter of 2026, U.S. manufacturing corporations owed $952.6 billion in trade accounts and trade notes payable at the end of the quarter. They owed $69.2 billion in short-term loans from banks and $180.9 billion in other short-term loans, including commercial paper. By our calculation, trade credit was roughly 3.8 times all of their short-term borrowing.

That trade-payables line also rose from $844.1 billion a year earlier, an increase of about 12.8% by our calculation. The Census table keeps trade payables and bank loans on separate lines, the same way a company's own balance sheet should.

When is a note payable a current liability?

A note payable is a current liability when it's due within 12 months of the balance sheet date. For a long-term note, the principal due in the next 12 months is reclassified as current at each close, and the rest stays noncurrent.

Take a $120,000 note repaid in 24 equal monthly principal installments of $5,000. On the day it's signed, $60,000 is current and $60,000 is noncurrent. Each month-end, another $5,000 shifts from noncurrent to current, until the whole remaining balance is current in the note's final year. Short-term notes payable, those written for a year or less, are current from day one.

Missing this reclassification is a common close error. It doesn't change total liabilities, but it overstates working capital, and that's exactly the number a lender's covenant test looks at.

How does interest on a note show up at month-end?

Interest on a note accrues as an expense each month, whether or not a payment is due. At month-end, debit interest expense and credit interest payable for the interest earned by the lender since the last payment.

On a $200,000 note at 8% annual interest with quarterly payments, a month's interest is about $1,333. At the end of the first and second months, you'd book that amount to interest expense and interest payable. When the quarterly payment goes out at the end of the third month, debit interest payable for the two accrued months, debit interest expense for the third, and credit cash for the total of about $4,000. The accrued interest sits in other current liabilities, separate from both the note and accounts payable. That's the timing principle behind accrual vs. cash accounting, applied to debt.

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When does a vendor balance turn into a note payable?

A vendor balance turns into a note payable when the supplier and the buyer sign a promissory note to replace an overdue invoice balance. The open payable is closed, and a new interest-bearing obligation with a maturity date takes its place.

The way it usually happens is a phone call nobody in AP wants to take. A supplier has carried a past-due balance for three or four months, the credit manager has stopped shipping on open terms, and the supplier's offer is to keep shipping if the buyer signs a note for the old balance. I've sat on the buyer's side of that call. The controller saw it as a financing problem, but the real cause was invoices that had been sitting in an approval queue for six weeks.

So what comes first, accounts payable or notes payable? In a supplier relationship, accounts payable always comes first. The note is what the payable becomes when it isn't paid on the original terms. Paying on time is the simplest prevention, and Corpay's fully managed AP pays each approved invoice by virtual card, ACH, or check on its due date.

What does the conversion entry look like?

The conversion entry debits accounts payable and credits notes payable for the balance being converted. No cash moves, and no expense is recorded at signing.

If an $85,000 past-due supplier balance is converted into a six-month note, the entry is:

After the entry, the balance disappears from the accounts payable aging report, and interest starts accruing under the note's terms. That disappearance can be misleading. An aging report that suddenly looks healthier may simply mean a problem balance moved to the debt schedule, which is worth knowing before anyone reports an improvement in past-due payables.

What should AP do differently after a balance becomes a note?

After a balance becomes a note, AP should stop treating it as a vendor invoice. Payments on the note follow its schedule, often through treasury, and the supplier's new invoices go back on ordinary terms.

In practice, that means a short list of changes:

• Remove the converted invoices from vendor payment runs so they can't be paid twice.

• Set up the note's payment and interest dates in the debt schedule, separate from the AP calendar.

• Agree with treasury who releases note payments and who books the interest accrual.

• Flag the vendor record so new invoices are paid on time, since a second late balance with the same supplier is much harder to negotiate.

The double-payment risk is real. If an old invoice stays approved in the AP system after the conversion, a routine payment run can pay it again while the note is still outstanding.

Why does the difference matter for cash flow and vendor relationships?

Trade payables are interest-free financing that only lasts while you pay on time. Once a supplier balance becomes a note, the same money costs interest, comes with contract terms, and signals to the supplier that you're a credit risk.

That's why I'd argue a supplier note is a symptom of a payables process that failed months earlier, usually through late approvals, lost invoices, or a cash plan that didn't account for due dates. Calling it a financing strategy misreads what happened. Large companies treat payables as a working capital lever. According to The Hackett Group's 2026 North American Working Capital Survey, the 1,000 largest North American nonfinancial public companies carry a record $1.94 trillion working capital opportunity, $548 billion of it in payables. Days payable outstanding improved by 2.9 days, and the cash conversion cycle fell 0.2 days to 38.4 days.

Those gains come from managing payment timing deliberately and negotiating terms up front, which is the opposite of letting balances age into notes. Tracking days payable outstanding alongside the accounts payable turnover ratio shows whether longer payment cycles come from negotiated terms or from invoices slipping past due.

If your aging report shows the same few suppliers past 60 days every month, pull their invoices and trace where each one stalled. That exercise usually finds the bottleneck faster than any new policy.

How do payment terms keep payables from becoming debt?

Payment terms keep payables from becoming debt when they're negotiated realistically and paid on schedule. A company that pays on the due date, every time, rarely gets asked to sign a note.

A few habits make that possible:

• Negotiate business payment terms that match your actual cash cycle.

• Schedule payments for the due date rather than paying whenever approval finishes.

• Take early payment discounts when spare cash earns more there than in the bank.

• Escalate any invoice still unapproved 10 days before its due date.

Faster payment rails help, too. According to the Federal Reserve Board's Federal Reserve Payments Study top-line data, U.S. check payments totaled 9.2 billion worth $24.45 trillion in 2024, against 39.7 billion ACH payments worth $104.06 trillion. The Federal Reserve Bank of Cleveland's September 2026 brief, B2B Payments: A Gradual Shift from Checks to Electronic Payment Methods, found that checks fell from 32% of B2B payments by number in 2015 to 13% in 2024, while ACH rose from 25% to 41%.

AFP's 2025 Digital Payments Survey Report, produced with J.P. Morgan, found checks were 26% of organizations' outgoing B2B payments in 2025, down from 33% in 2022 and 81% in 2004. And according to Nacha's report on the ACH Network in the second quarter of 2026, B2B payments on the network reached 2.2 billion that quarter, up 9.9% year over year, and 4.3 billion for the first half, up 10.3%. Electronic payments land on the day you schedule them, which takes the mail out of on-time payment. For suppliers that accept card, Corpay's single-use virtual cards get them paid on the due date with a card number that works only once.

How Corpay keeps vendor balances on schedule

Supplier notes start with invoices that sat too long, and the fix is a payables process where every approved invoice gets paid on its due date. Corpay is built to run that process alongside your ERP.

Corpay's fully managed AP schedules and pays each supplier by virtual card, ACH, or check from one workflow, so payment timing doesn't depend on someone remembering to cut a check. Card payments use single-use virtual cards, and Corpay pays its customers more than $800M in rebates each year. Corpay AP automation connects through 100+ ERP integrations, including NetSuite, Sage Intacct, Business Central, and Acumatica, and AP teams save about 40% of the time they spend on processing. Most customers are live in weeks, and the cash flow gains from AP automation start with the first payment run that goes out on time.

Frequently Asked Questions

Is a note payable the same as an account payable?

No. An account payable is an open supplier invoice on trade terms, usually without interest. A note payable is a signed promissory note with a principal amount, interest rate, and maturity date. Both are liabilities, but a note is a formal debt and the balance sheet shows them separately.

What is the difference between bills payable and accounts payable?

In U.S. usage, "bills payable" usually means the same thing as accounts payable, the supplier bills a company owes. In some accounting traditions, bills payable refers to accepted bills of exchange, which are formal written obligations and behave more like notes payable. Check which meaning your accounting terminology follows.

Are notes payable a current liability?

Notes payable are a current liability when they're due within 12 months of the balance sheet date. Longer notes are noncurrent, except for the principal due in the next 12 months, which is reclassified as current at each close.

Do accounts payable carry interest?

Most accounts payable don't carry interest if they're paid on time. Some supplier terms add late-payment finance charges to overdue invoices. The written promise and stated interest rate are what separate a note from a payable, and a possible late fee doesn't change that.

What is the difference between notes payable and notes receivable?

They're two sides of the same promissory note. The borrower records a note payable as a liability, and the lender records a note receivable as an asset. When a supplier converts a past-due invoice into a note, the buyer books a note payable and the supplier books a note receivable.

David Luther

Product Marketing Program Manager

David Luther, MBA is a product marketing program manager with years of experience in commercial banking, finance, and technology sectors, with research and writing appearing in financial publications.

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