November 2, 2026 · Mitt Patel · 5 min read
You just sent this month's equipment loan payment of $820, logged it as an expense in QuickBooks, and moved on. Six months from now, your books will show a loan balance that doesn't match what the lender says you owe, and your profit will look lower than it actually is. Here's why that happens and what to do instead.
Why this happens
A loan payment feels like one transaction, so it's tempting to record it that way. Most owners categorize the whole payment as "loan expense" or lump it into interest expense and call it done.
But a loan payment is really two different things. Part of it is interest, which is a real expense and belongs on your profit and loss statement. The other part is principal, which is you paying down something you already owe. It's not an expense at all. It's a reduction of a liability on your balance sheet, similar to paying off a credit card.
When you record the full payment as an expense, two things go wrong. First, your profit gets understated, because you're expensing money that actually went toward debt you already owed, not toward running the business. Second, your loan balance in QuickBooks never shrinks, because nothing ever reduces it. Six months or a year later, your books might show you still owe the original loan amount, while the lender's statement shows a much lower balance.
This matters when you're trying to make decisions. If profit looks artificially low, you might think the business is struggling more than it is, or hesitate to spend on something it can actually afford. If you ever need a lender or landlord to see your financials, a loan balance that doesn't match reality is the kind of thing that raises questions you don't want to answer twice.
A worked example
Say you took out an equipment loan, and your monthly payment is $820. Your lender's amortization schedule says this month's payment breaks down as $600 toward interest and $220 toward principal.
If you record the full $820 as interest expense, your profit and loss statement shows $220 more in expenses than it should. Your balance sheet still shows the original loan amount, untouched.
The correct entry splits the payment:
- $600 goes to an interest expense account on your profit and loss statement
- $220 goes to reduce the loan liability account on your balance sheet
After this entry, your expense for the month is $600, not $820. Your loan balance drops by $220. Next month, the split will be different. Your lender's schedule might show $598 in interest and $222 in principal, because as the balance goes down, less of each payment goes to interest and more goes to principal. That's normal, and it's exactly why you check the statement every time instead of assuming the split stays the same.
How to set it up
- Get the loan's amortization schedule from your lender. This document lists every scheduled payment and shows how much is principal and how much is interest, for the life of the loan.
- Set up a liability account for the loan in QuickBooks. This should match the original loan amount and live on your balance sheet, not your profit and loss statement.
- Set up or confirm an interest expense account. This is where the interest portion of each payment will land.
- Record each payment as a split transaction, not a single category. One line goes to the interest expense account using the amount from the lender's schedule. The other line reduces the loan liability account by the principal amount.
- Reconcile the loan balance against the lender's statement every month. The balance in your liability account should match what the lender shows you owe, after that month's payment posts.
- Adjust for fees or extra payments separately. If a payment includes a late fee or you made an extra principal payment, those need their own line items so they don't get mixed into the regular split.
Mistakes that undo this
- Recording the whole payment as one expense line. This is the most common shortcut, and it's the one that causes the understated profit and the stale loan balance.
- Using the same split every month without checking the schedule. The interest and principal portions change over time. Copying last month's numbers will drift from reality.
- Forgetting to reconcile. Even if you split payments correctly, small errors add up. Checking the loan balance against the lender's statement catches mistakes before they compound.
- Mixing loan payments with unrelated transactions. If a bank draft includes both a loan payment and something else, like an insurance premium bundled by the lender, each piece needs to go to the right place.
- Not accounting for variable-rate loans. If your interest rate can change, the amortization schedule may need to be updated by the lender, and your split should follow the updated numbers, not the original schedule.
Monthly checklist
- Pull the lender's amortization schedule or latest statement
- Confirm this month's principal and interest split
- Record the payment as a split transaction, not a single expense
- Reconcile the loan liability account balance against the lender's statement
- Note any fees or extra payments as separate line items
- Flag any discrepancy immediately rather than letting it carry forward
Common questions
What if my lender doesn't give me an amortization schedule upfront?
Most lenders will provide one if you ask, or you can find the current principal and interest breakdown on your monthly statement. If neither is available, the loan agreement itself usually has enough information to calculate it, though the specific method depends on the loan terms.
Does this apply to all types of loans?
The same principle applies to most installment loans, including equipment loans, vehicle loans, and term loans from a bank. Lines of credit work a little differently because the balance can go up and down, so how you track those depends on how the line is structured.
What happens if I've been recording payments wrong for months?
You can fix it, but it usually takes going back through past entries to reclassify the principal portions and correct the loan balance. The right approach depends on how long the error has been happening and how many transactions are affected.
Why does the loan balance in QuickBooks matter if I know roughly what I owe?
An inaccurate balance sheet can cause problems if you apply for financing, bring on a partner, or need to show financials to anyone outside the business. It also makes it harder to trust your own profit numbers from month to month.
Setting up loan payments correctly once and keeping the split current every month isn't complicated, but it's easy to let slide when you're busy running the business. North Hudson Bookkeeping sets this up for clients and keeps it reconciled month to month, so the numbers match what the lender says and profit reflects what actually happened. The first call is free.
