Are business loan tax deductible? What actually qualifies – and what doesn’t
Jacob Shimon is a professional finance writer at eBoost Partners with over seven years of experience in the commercial lending industry. A graduate of the University of Florida’s Warrington College of Business with a degree in Finance, he specializes in breaking down complex business lending topics to help entrepreneurs make smart, informed decisions.
Business loans are not taxable income. The interest you pay on most business loan is tax deductible, as long as the funds went toward legitimate business purposes.
But the principal portion of your payments – the amount you’re paying back on the actual loan balance – is not deductible at all. That distinction matters a lot when you’re doing the math on your tax return.
I’ve worked with clients who came into our first conversation convinced they could write off their entire monthly loan payment. Some had already filed that way.
The confusion is understandable – the question “are business loans tax deductible?
What actually qualifies – and what doesn’t” doesn’t have a single yes or no answer, and most guides either oversimplify it or bury the important parts in footnotes.
So here’s the clean version, from someone who has sat through enough loan closings and tax conversations to know where the real pitfalls are.
Key components of business loan tax treatment
Interest payments are your primary deduction. Your lender will either send a year-end interest statement or you can pull the breakdown from your loan amortization schedule.
Most standard term loans have a clear separation between principal and interest in each payment.
Principal repayments are not deductible. Full stop. This trips people up because the payment leaves your account, so it feels like an expense. It’s not – it’s a balance sheet transaction.
You’re reducing a liability (the loan), not running a business expense through your income statement.
Loan origination and closing fees are deductible, but amortized over the loan term. These include origination fees, underwriting fees, and certain closing costs. The IRS generally treats them as debt issuance costs, spread across the life of the loan.
Personal guarantee costs – if you paid a fee to secure a personal guarantee or collateral-related insurance – may or may not be deductible depending on how they’re structured. That’s worth asking your CPA about specifically.
Business loan deductibility – qualifying criteria and the Section 163(j) limit
Most small business owners don’t need to worry about the interest limitation that came out of the 2017 Tax Cuts and Jobs Act. But it’s worth knowing where the line is.
Section 163(j) caps the deduction for net business interest expense at 30% of “adjusted taxable income” for businesses that exceed a gross receipts threshold.
For 2024 and 2025, that threshold is approximately $30 million in average annual gross receipts over the prior three years. If your business is below that, you’re fully exempt – no cap, no calculation, no limitation.
For the small minority of businesses that do cross that threshold, the limitation only applies to net interest expense above 30% of ATI. Disallowed interest doesn’t disappear – it carries forward to future tax years. This is where a tax advisor earns their fee.
Beyond the 163(j) question, two other situations commonly disqualify interest deductions:
Mixed personal and business use. If you use a business loan partly for personal spending, only the business-use portion of the interest is deductible.
And “partly” means you need to document the allocation clearly – not estimate it at tax time. Mixing uses without clean records is one of the fastest ways to lose a deduction under audit.
Passive activity rules. If your business is considered a passive activity – meaning you’re not materially participating in its operations – interest expense may be subject to passive activity loss limitations. Real estate investors and certain partnership arrangements run into this frequently.
Common situations where deductibility gets complicated
Personal loan used for business purposes. If you took out a personal loan and used the proceeds to fund your business, the interest can still be deductible as a business expense – because the tracing rules follow the money, not the loan type.
You’d document the business use of those funds and deduct accordingly. The loan doesn’t have to be in the business’s name for the interest to qualify.
If you loan your own money to your business. This is a popular question – “if I loan my business money, is it tax deductible?” The short answer: no, not for you personally. You can’t pay yourself interest and then deduct it on your business return.
The IRS requires an arm’s-length debtor-creditor relationship, and a transaction with yourself doesn’t meet that standard.
The business can document it as a related-party loan, and if you do charge yourself market-rate interest, there are rules around imputed interest – but the deduction doesn’t flow through the way people often expect.
Merchant cash advances. This is one most guides get wrong or skip entirely. An MCA is structured as the purchase of future receivables, not as a loan. The factor fees you pay aren’t technically “interest” in the IRS sense – they’re closer to a discount on the sale of future revenue.
The good news is those fees are generally deductible as an ordinary business expense. The way you categorize and report them matters, though – they typically go on your return as a cost of goods sold or financing expense, not as interest expense.
If you’re using MCAs regularly, make sure your bookkeeper understands the distinction. Revenue-based financing has its own tax treatment that’s worth reviewing with a CPA.
SBA loans. Interest on SBA loans is fully deductible under the same rules that apply to any other business loan. The SBA guarantee doesn’t change the tax treatment. SBA 7(a) and 504 loans both qualify. If you’re in the process of evaluating SBA options, the deductibility of interest is one more factor that improves the effective cost.
Equipment financing. The interest on equipment loans and financing arrangements is deductible. On top of that, the equipment itself may qualify for Section 179 expensing or bonus depreciation, which can provide a separate and often larger deduction in the year of purchase. The two deductions – loan interest and depreciation – can stack.
What loan types qualify for the interest deduction
Term loans – the standard structure. Fixed or variable rate, monthly payment, clear amortization schedule separating principal from interest. The interest portion of every payment is deductible if funds went to business use.
Business lines of credit – you only pay interest on what you draw, and only that interest is deductible. If you draw $40,000 from a $100,000 line and pay $3,200 in interest for the year, you deduct $3,200. The deductibility rules for lines of credit follow the same business-use tracing logic as term loans.
SBA loans – deductible. No special rules apply beyond the standard IRC Section 163 requirements. SBA 7(a) and 504 programs both qualify.
Equipment financing and leasing – interest is deductible if the arrangement is structured as a loan (you own the equipment). If it’s a true operating lease, the payments may be fully deductible as a rent expense instead, which is sometimes more favorable. The structure matters.
Invoice factoring – factoring fees aren’t technically interest either. They’re the cost of selling receivables at a discount. Similar to MCAs, those fees are generally deductible as a business expense, just not categorized as interest expense on your return.
Personal loans used for business – deductible for the business-use portion, based on the tracing rules discussed earlier.
How to actually claim the business loan interest deduction
The mechanics are simpler than most people expect.
At year-end, your lender will typically provide an interest statement showing total interest paid. For larger loans, you may receive a Form 1098. For others, you pull the figure directly from your amortization schedule or account statements.
Sole proprietors and single-member LLCs report business interest on Schedule C, Line 16 (“Interest”). Partnerships report it on Form 1065. S-corps on Form 1120-S. C-corps on Form 1120. The field is there – the question is just making sure you have the right number and documentation to support it.
What I tell my clients during tax prep: keep a separate business bank account and run all loan disbursements through it.
When the loan funds hit, document what they’re used for immediately – not six months later when you’re trying to reconstruct it. That paper trail is what stands between a clean deduction and a denied one.
If your loan funded multiple uses – say, 80% for equipment and 20% for operating expenses – document the allocation. Both portions are still deductible if they’re both business uses. The issue only arises when personal spending is in the mix.
Financing options and what to know before you borrow
Understanding the tax treatment of your loan matters before you take it on, not after. The effective cost of borrowing – after the interest deduction – should be part of how you evaluate whether a loan makes sense for your business.
At eBoost Partners, we work with businesses across a range of loan types and financing structures.
When we sit down with a client, the tax angle is part of the early conversation – not because we’re tax advisors (consult your CPA for that), but because knowing that your $18,000 in annual interest expense translates to $4,500 in tax savings changes how you think about the cost of that capital.
Getting a business loan involves more than finding the lowest rate. Terms, structure, and intended use all affect how the financing ultimately works for your business – including how it’s treated at tax time. Qualification requirements vary by loan type; even businesses with credit challenges often have more options than they expect.
One thing I say consistently: borrow for business purposes, document everything, and let the interest deduction lower your effective cost.
Don’t borrow because you think the tax deduction makes it free – it doesn’t. But don’t ignore the deduction either, because it’s real money and it’s yours to claim.
Key components of business loan tax treatment
Interest payments are your primary deduction. Your lender will either send a year-end interest statement or you can pull the breakdown from your loan amortization schedule.
Most standard term loans have a clear separation between principal and interest in each payment.
Principal repayments are not deductible. Full stop. This trips people up because the payment leaves your account, so it feels like an expense. It’s not – it’s a balance sheet transaction.
You’re reducing a liability (the loan), not running a business expense through your income statement.
Loan origination and closing fees are deductible, but amortized over the loan term. These include origination fees, underwriting fees, and certain closing costs. The IRS generally treats them as debt issuance costs, spread across the life of the loan.
Personal guarantee costs – if you paid a fee to secure a personal guarantee or collateral-related insurance – may or may not be deductible depending on how they’re structured. That’s worth asking your CPA about specifically.
Business loan deductibility – qualifying criteria and the Section 163(j) limit
Most small business owners don’t need to worry about the interest limitation that came out of the 2017 Tax Cuts and Jobs Act. But it’s worth knowing where the line is.
Section 163(j) caps the deduction for net business interest expense at 30% of “adjusted taxable income” for businesses that exceed a gross receipts threshold.
For 2024 and 2025, that threshold is approximately $30 million in average annual gross receipts over the prior three years. If your business is below that, you’re fully exempt – no cap, no calculation, no limitation.
For the small minority of businesses that do cross that threshold, the limitation only applies to net interest expense above 30% of ATI. Disallowed interest doesn’t disappear – it carries forward to future tax years. This is where a tax advisor earns their fee.
Beyond the 163(j) question, two other situations commonly disqualify interest deductions:
Mixed personal and business use. If you use a business loan partly for personal spending, only the business-use portion of the interest is deductible.
And “partly” means you need to document the allocation clearly – not estimate it at tax time. Mixing uses without clean records is one of the fastest ways to lose a deduction under audit.
Passive activity rules. If your business is considered a passive activity – meaning you’re not materially participating in its operations – interest expense may be subject to passive activity loss limitations. Real estate investors and certain partnership arrangements run into this frequently.
Common situations where deductibility gets complicated
Personal loan used for business purposes. If you took out a personal loan and used the proceeds to fund your business, the interest can still be deductible as a business expense – because the tracing rules follow the money, not the loan type.
You’d document the business use of those funds and deduct accordingly. The loan doesn’t have to be in the business’s name for the interest to qualify.
If you loan your own money to your business. This is a popular question – “if I loan my business money, is it tax deductible?” The short answer: no, not for you personally. You can’t pay yourself interest and then deduct it on your business return.
The IRS requires an arm’s-length debtor-creditor relationship, and a transaction with yourself doesn’t meet that standard.
The business can document it as a related-party loan, and if you do charge yourself market-rate interest, there are rules around imputed interest – but the deduction doesn’t flow through the way people often expect.
Merchant cash advances. This is one most guides get wrong or skip entirely. An MCA is structured as the purchase of future receivables, not as a loan. The factor fees you pay aren’t technically “interest” in the IRS sense – they’re closer to a discount on the sale of future revenue.
The good news is those fees are generally deductible as an ordinary business expense. The way you categorize and report them matters, though – they typically go on your return as a cost of goods sold or financing expense, not as interest expense.
If you’re using MCAs regularly, make sure your bookkeeper understands the distinction. Revenue-based financing has its own tax treatment that’s worth reviewing with a CPA.
SBA loans. Interest on SBA loans is fully deductible under the same rules that apply to any other business loan. The SBA guarantee doesn’t change the tax treatment. SBA 7(a) and 504 loans both qualify. If you’re in the process of evaluating SBA options, the deductibility of interest is one more factor that improves the effective cost.
Equipment financing. The interest on equipment loans and financing arrangements is deductible. On top of that, the equipment itself may qualify for Section 179 expensing or bonus depreciation, which can provide a separate and often larger deduction in the year of purchase. The two deductions – loan interest and depreciation – can stack.
What loan types qualify for the interest deduction
Term loans – the standard structure. Fixed or variable rate, monthly payment, clear amortization schedule separating principal from interest. The interest portion of every payment is deductible if funds went to business use.
Business lines of credit – you only pay interest on what you draw, and only that interest is deductible. If you draw $40,000 from a $100,000 line and pay $3,200 in interest for the year, you deduct $3,200. The deductibility rules for lines of credit follow the same business-use tracing logic as term loans.
SBA loans – deductible. No special rules apply beyond the standard IRC Section 163 requirements. SBA 7(a) and 504 programs both qualify.
Equipment financing and leasing – interest is deductible if the arrangement is structured as a loan (you own the equipment). If it’s a true operating lease, the payments may be fully deductible as a rent expense instead, which is sometimes more favorable. The structure matters.
Invoice factoring – factoring fees aren’t technically interest either. They’re the cost of selling receivables at a discount. Similar to MCAs, those fees are generally deductible as a business expense, just not categorized as interest expense on your return.
Personal loans used for business – deductible for the business-use portion, based on the tracing rules discussed earlier.
How to actually claim the business loan interest deduction
The mechanics are simpler than most people expect.
At year-end, your lender will typically provide an interest statement showing total interest paid. For larger loans, you may receive a Form 1098. For others, you pull the figure directly from your amortization schedule or account statements.
Sole proprietors and single-member LLCs report business interest on Schedule C, Line 16 (“Interest”). Partnerships report it on Form 1065. S-corps on Form 1120-S. C-corps on Form 1120. The field is there – the question is just making sure you have the right number and documentation to support it.
What I tell my clients during tax prep: keep a separate business bank account and run all loan disbursements through it.
When the loan funds hit, document what they’re used for immediately – not six months later when you’re trying to reconstruct it. That paper trail is what stands between a clean deduction and a denied one.
If your loan funded multiple uses – say, 80% for equipment and 20% for operating expenses – document the allocation. Both portions are still deductible if they’re both business uses. The issue only arises when personal spending is in the mix.
Financing options and what to know before you borrow
Understanding the tax treatment of your loan matters before you take it on, not after. The effective cost of borrowing – after the interest deduction – should be part of how you evaluate whether a loan makes sense for your business.
At eBoost Partners, we work with businesses across a range of loan types and financing structures.
When we sit down with a client, the tax angle is part of the early conversation – not because we’re tax advisors (consult your CPA for that), but because knowing that your $18,000 in annual interest expense translates to $4,500 in tax savings changes how you think about the cost of that capital.
Getting a business loan involves more than finding the lowest rate. Terms, structure, and intended use all affect how the financing ultimately works for your business – including how it’s treated at tax time. Qualification requirements vary by loan type; even businesses with credit challenges often have more options than they expect.
One thing I say consistently: borrow for business purposes, document everything, and let the interest deduction lower your effective cost.
Don’t borrow because you think the tax deduction makes it free – it doesn’t. But don’t ignore the deduction either, because it’s real money and it’s yours to claim.
Disclaimer: The information in this article is for educational and informational purposes only and does not constitute financial advice. All funding products, rates, and terms are provided by eBoost Partners and are subject to application, credit approval, and our current underwriting criteria. Rates and terms are subject to change without notice.
FAQ’s
Can you claim a business loan on your taxes?
You can’t deduct the loan itself or the principal payments, but you can deduct the interest paid on a business loan as a business expense – provided the funds were used for legitimate business purposes.
The loan proceeds are also not considered taxable income, so you don’t report them as revenue when you receive them. What you’re claiming on your return is the interest expense, not the borrowing itself.
Can I write off my SBA loan payments?
The interest portion of your SBA loan payments is fully deductible as a business expense under the same rules that apply to any other business loan – IRC Section 163.
The principal repayment is not deductible. If the SBA covered a portion of your loan payments during a relief program (as it did during COVID-era programs), the portion the SBA paid on your behalf may not be deductible since you didn’t actually pay it.
Check with your accountant if you received SBA payment relief in prior years, as the treatment of those subsidized payments has specific guidance.
If I loan my business money, is the interest tax deductible?
Not in the way most people expect. If you lend money from your personal funds to your own business and charge it interest, the business can’t deduct that interest payment the same way it would for a third-party lender – at least not without careful structuring.
The IRS looks for a genuine arm’s-length debtor-creditor relationship, proper promissory notes, a market-rate interest charge, and actual repayment. Done correctly with legal documentation and market-rate terms, the arrangement can work.
Done informally, it’s likely to be disallowed under audit. A related-party loan between an owner and their business has specific rules – run it by a CPA before assuming the deduction holds.