Is business loan interest tax deductible?
It depends. Business loan interest is usually deductible when the borrowed money is used to earn business income—and you can trace how the funds were used.
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On this page: Short answer · When it applies · When it doesn’t · Example · Records · Related · FAQ
Short answer
Depends. Business loan interest is generally deductible when the loan proceeds are used for business purposes (to earn income). If funds are used for personal spending—or you can’t trace the use—the deduction may be limited or disallowed.
The purpose of the borrowing matters more than the type of lender.
When it’s more likely deductible
- The loan proceeds are used for business expenses (e.g., inventory, payroll, operating costs)
- You can trace borrowed funds from the loan to business spending
- You keep loan statements showing interest charged and paid
- The business portion can be reasonably calculated for mixed-use borrowing
When it’s not deductible (or risky)
- The loan is used for personal expenses (e.g., vacations, personal bills)
- Business and personal spending are mixed with no clear allocation
- You can’t show how the borrowed funds were used
- The borrowing relates to non-income-producing or non-deductible activities
Example
A retailer takes a business loan to buy inventory and pay rent for the shop. Because the borrowed money is used for income-producing business expenses, the interest charged on the loan is generally deductible.
If the owner also uses part of the loan for personal expenses, only the interest related to the business portion is typically deductible.
What records to keep
- Loan agreement and repayment schedule
- Monthly loan statements showing interest charged
- Bank statements tracing the use of loan proceeds
- Invoices/receipts showing business purchases paid with borrowed funds
- Allocation worksheet if the loan was used for mixed purposes
FAQ
What counts as “business use” for a loan?
Business use generally means the borrowed money is used to pay costs that help you earn business income, such as inventory, operating expenses, or business assets.
Can I deduct interest if the loan is in my personal name?
Sometimes. What matters is how the borrowed funds are used. If you can trace the funds to business use, the interest may be deductible.
What’s the biggest reason interest deductions get denied?
Poor recordkeeping. If you can’t trace borrowing to business use, the interest may be disallowed.
Looking for related deductible expenses? ← See Interest tax deductibility
Last reviewed: January 31, 2026