To record a business loan you book the money you receive as a liability rather than income, then record each payment as a split: the principal portion pays down the liability and the interest portion is an expense. Two mistakes wreck a loan’s bookkeeping: treating the borrowed money as revenue, and treating the whole monthly payment as an expense. Both make your business look wrong on paper. Here is the correct way to book the loan, the payments, and how it all lands on your reports.
How to record a business loan, step by step
- Set up the loan liability account. Create a liability account for the loan in your chart of accounts, so there’s a place to track what you owe.
- Record the loan proceeds. Book the cash landing in your bank account with the offset going to the loan liability, not to income.
- Split each payment into principal and interest. Record every payment as a split: one line reduces the loan liability by the principal, one line books the interest as an expense.
- Watch the liability draw down. As payments post, the loan balance on your balance sheet shrinks by the principal you’ve repaid.
Why loan proceeds are not income
When a $30,000 loan hits your checking account, it feels like a great month. It isn’t revenue, though, because you have to give it back. In accounting terms, borrowed money creates an obligation, so the cash coming in is matched by a liability of the same size. You set up a liability account for the loan and book the proceeds there, which is why the $30,000 never shows up on your profit and loss. If you booked it as income by mistake, your business would look wildly profitable and you could end up paying tax on money you owe the bank. A clean chart of accounts gives you a dedicated liability line to keep this straight.
The test for whether incoming money is income: do you have to pay it back? Revenue is yours to keep. Loan proceeds are borrowed, so they’re a liability, not income.
Why the principal is not an expense (but the interest is)
This is the part that trips people up. A loan payment of $650 a month is not a $650 expense. Most of that payment is just returning borrowed money, and returning what you borrowed doesn’t cost you anything new: it lowers what you owe. Only the interest is a real cost of borrowing, and only the interest is an expense. So a single payment does two different things:
- The principal portion reduces the loan liability. It shrinks the balance you owe and never touches your profit and loss.
- The interest portion is the cost of the loan. It books as an interest expense and does show up on your profit and loss.
Because one payment has two jobs, you record it as a split transaction. If you expensed the whole payment instead, you’d overstate your costs by the principal amount every single month, and your liability would never go down on the books even as you paid the loan off in real life.
Splitting a loan payment
Your lender’s amortization schedule tells you the principal and interest for each payment. Say a $650 payment is $520 principal and $130 interest. You open the payment and split it into two lines:
| Line | Account | Amount |
|---|---|---|
| Principal | Loan liability (reduces what you owe) | $520.00 |
| Interest | Interest expense | $130.00 |
| Total | Matches the payment that left your bank | $650.00 |
The two lines sum to the $650 that actually left your account, so LedgerMCP posts it as one balanced entry. Early in a loan the interest portion is larger and the principal smaller; as the balance falls, more of each payment goes to principal. That’s why you pull the split figures from the amortization schedule rather than splitting evenly.
Watching the loan draw down on your balance sheet
Booked this way, the loan behaves correctly on your reports. The full balance sits on your balance sheet as a liability the day the money arrives, and it shrinks by the principal portion of every payment. Over the life of the loan you can watch the liability walk down to zero, which is the visual proof that you’ve paid it off. Meanwhile your profit and loss carries only the interest, month by month, which is the true cost of having borrowed.
Letting an AI assistant book the loan
LedgerMCP has no built-in AI, but because it exposes an MCP server you can connect your own assistant and have it set up the liability, book the proceeds, and split each payment. It can categorize and split exactly as you would, and preview the entry before posting:
You: Book the $650 loan payment. Amortization says $520 principal, $130 interest. Assistant: Here’s the split before posting: Loan liability $520.00 (principal, reduces what you owe) Interest expense $130.00 Total $650.00 (matches the payment) Post it? You: Yes. Assistant: Posted. Loan balance is now $28,960, down from $29,480.
Every posting is immutable and reversible, so a mis-split payment is corrected with a linked reversal, never a silent edit, and the loan’s running balance always reflects the real postings.
Quick answers
Is a business loan income?
No. Loan proceeds are money you have to pay back, so they’re a liability, not income. You record the cash coming into your bank account with the other side going to a loan liability account, which keeps the loan off your profit and loss.
Why isn’t the principal part of a loan payment an expense?
Because paying down principal just returns borrowed money. It reduces what you owe (the liability) rather than costing you anything new, so it never touches your profit and loss. Only the interest is an expense.
How do I record a loan payment?
Record each payment as a split: one line reduces the loan liability by the principal portion, and one line books the interest as an expense. The two lines together equal the total payment that left your bank account.
Where does a business loan show up on my reports?
The loan balance sits on your balance sheet as a liability and draws down as you pay principal. The interest portion of each payment shows up as an expense on your profit and loss. The proceeds and the principal payments never appear on the profit and loss at all.
How do I find the principal and interest split for a payment?
Your lender’s amortization schedule lists the principal and interest for every payment. Use those figures for the split. Early in a loan the interest portion is larger; later on more of each payment goes to principal.