How to Record Business Loan Payments Without Wrecking Your Books

When a loan payment clears your business bank account, it's tempting to code the whole thing to an expense called "loan payment" and move on. That one shortcut inflates your expenses, hides your debt, and creates a mess at tax time. Here's how to handle business loans correctly without making it complicated.

Only the Interest Is an Expense

A loan payment is really two or three things bundled together: a chunk of principal that pays back what you borrowed, interest for the month, and sometimes fees or escrow. The principal portion isn't an expense — it's a transfer that reduces what you owe. Interest is the part that's generally deductible as a business expense, assuming the loan was taken for the business. Book the entire payment as an expense and your profit and loss shows you spending more than you actually did, which skews your estimated tax payments and any decisions you make off the P&L.

Record the Loan When the Money Lands

The first entry happens on day one, when the lender wires the funds. That deposit is not income — it's debt, and it isn't taxable. Book it against a liability account, not as revenue. If your bookkeeping software auto-categorizes loan disbursements as sales, fix it right away, because that single error can make an ordinary year look wildly profitable.

Set Up One Liability Account per Loan

Create a liability account named for the loan, like "Loan – First Street Bank" or "Equipment Loan – Dealer." One account per loan keeps things simple. If you want a cleaner balance sheet, you can split it into the portion due within a year (current) and the rest (long-term), but a single account per loan works fine for most small businesses. What matters is that the account balance matches what the lender says you owe.

Enter Each Payment as a Split Transaction

Each month, when the payment clears, enter it as one transaction with two lines: the interest portion goes to an "Interest Expense" account, and the principal portion goes to the loan's liability account. Don't guess the split — your lender's amortization schedule, usually on the statement or in the lender portal, shows exactly how each payment divides between interest and principal. The interest share shrinks a little every month and the principal share grows, so the split changes with every payment.

Check the Balance Against the Lender

Once a month, or at least at year end, compare the balance in your loan account to the principal or payoff balance on your lender's statement. They should match. When they don't, look for a missed payment, a payment recorded twice, fees the lender added to the balance, or a disbursement that never got booked. Getting this right matters beyond tidiness: if you ever apply for another loan or a government-backed lending program, lenders read your balance sheet, and a missing or inflated loan balance raises questions you don't want to answer.

Lines of Credit Work the Same Way

For a business line of credit, every draw increases the liability and every payment reduces it, with the interest portion as the expense. Business credit card interest follows the same logic if you carry a balance on a card used for the business — the interest is the deductible part, not the payments themselves. If you pay the card in full every month, there's rarely any interest to track at all.

Fees, Points, and Refinancing

Origination fees and points on a business loan usually can't be written off all at once — they're generally spread over the life of the loan. Your lender or tax preparer can tell you the schedule for yours. When you refinance, don't keep paying into the old account: close out the old loan's balance and open a new liability account for the new debt, so your books reflect the actual deal you signed.

Why It's Worth the Extra Two Minutes

Splitting a loan payment takes barely longer than coding it to one expense, and it keeps three things true at once: your P&L shows real operating costs, your balance sheet shows real debt, and your tax return claims the interest deduction you're entitled to without padding expenses you'd have to unwind later. That's most of what "clean books" means.

And if you'd rather never think about amortization schedules at all, that's exactly the kind of thing TwoDayBooks handles for our bookkeeping clients — you keep running the business, and we keep the loans (and everything else) booked right.