Credit card interest is not deductible for personal purchases, but it may be deductible if you borrowed money for a business or investment

The short answer: no, you cannot write off credit card interest on personal debt. The IRS does not allow deductions for interest paid on credit cards used for everyday expenses, groceries, gas, or other consumer purchases. This rule has been in place since 1986.

However, the same credit card can produce a deductible interest expense if you use it for a business loan or to buy investments. The distinction is what you bought with the borrowed money, not the card itself. A credit card used to pay business supplies generates deductible interest. The same card used to pay your electric bill does not.

Understanding this difference matters because people sometimes assume that because they have a business, all their credit card interest becomes deductible. It does not. Only the interest on money borrowed specifically for business or investment purposes qualifies.

Key Takeaways

  • Personal credit card interest—on groceries, rent, utilities, or any consumer purchase—cannot be deducted on your tax return under any circumstance.
  • Credit card interest becomes deductible only when you borrow money specifically for a business expense or investment, and you must track which purchases those were.
  • A business owner using one credit card for both personal and business expenses must separate the two and report only the business portion as a deduction.
  • Home equity lines of credit and mortgages have their own deduction rules, which differ from credit cards and depend on how you use the borrowed money.
  • The IRS requires documentation showing the business or investment purpose of the debt; a credit card statement alone is not enough proof.

When credit card interest might be deductible

If you own a business and use a credit card to pay for business expenses—supplies, equipment, advertising, or professional services—the interest on that card is deductible as a business expense. You report it on Schedule C (for sole proprietors) or on your business tax return.

The same applies to investment-related debt. If you borrow money using a credit card to buy stocks, bonds, or other investments, the interest may be deductible as an investment expense. This is less common because most people do not use credit cards for investments, but the rule exists. Investment interest is reported on Schedule A as a miscellaneous deduction, subject to limitations.

The critical requirement: you must be able to show that the borrowed money went toward the business or investment. A credit card statement showing a charge to an office supply store is clear. A statement showing a charge to a grocery store is not. If you use one card for mixed purposes, you need to track which charges were business and which were personal.

Why personal credit card interest does not may have access to

The IRS classifies personal credit card interest as "consumer interest," which has been non-deductible since the Tax Reform Act of 1986. This includes interest on cards used for food, utilities, rent, car payments, medical bills, or any other personal expense. The reasoning is that these purchases benefit you personally, not your business or investment portfolio, so the government does not subsidize the cost through a tax deduction.

This rule applies even if you are self-employed or own a business. If you use a personal credit card to pay a personal expense, the interest is not deductible, even if you also use that same card for business. The deduction depends on the purpose of the debt, not on who holds the card or what other debts they carry.

How to separate business and personal credit card interest

If you use one credit card for both business and personal expenses, you must track the two categories separately. At tax time, you can only deduct the interest that corresponds to the business portion of your balance.

The calculation works like this: if your average credit card balance for the year was $10,000, and 60% of your charges were business-related, then 60% of the interest you paid is deductible. You need documentation to support this split—a record of which charges were business and which were personal. A spreadsheet, your accounting software, or your credit card issuer's online portal can help you categorize charges as you go.

Many business owners avoid this complexity by using a separate credit card for business expenses. This makes tracking simpler and gives you a clear record at tax time. It also makes it easier to substantiate your deduction if the IRS ever asks.

Home equity lines of credit and mortgages are different

Credit cards are not the only way to borrow money. Home equity lines of credit (HELOCs) and mortgages have their own deduction rules, and they differ significantly from credit cards.

Mortgage interest on your primary home or a second home is deductible if you itemize deductions on Schedule A. However, this deduction is capped: as of 2024, you can deduct interest on up to $750,000 of mortgage debt (or $375,000 if married filing separately). This is true regardless of what you used the borrowed money for—the deduction is based on the loan type and the property, not the purpose of the funds.

A HELOC works differently. If you borrow against your home's equity using a line of credit, the interest is deductible only if you used the borrowed money to buy, build, or substantially improve the home itself. If you used a HELOC to pay off credit card debt, pay for a vacation, or fund a business, the interest is not deductible. The rule is stricter than it sounds: the money must have gone toward the home, not just any purpose.

What documentation you need

If you claim a deduction for business credit card interest, the IRS expects you to have records showing that the debt was incurred for business purposes. A credit card statement alone is usually not enough. You should keep receipts, invoices, or other documentation that ties the charges to your business.

For investment interest, you need records showing that you borrowed money to purchase investments. A brokerage statement showing the purchase, paired with a credit card statement showing the payment, creates a clear trail.

The burden is on you to prove the purpose of the debt. If you cannot show that a credit card charge was business-related, the IRS will not allow the deduction. Keeping organized records as you go—rather than trying to reconstruct them months later—makes this much simpler.

Frequently Asked Questions

Can I deduct credit card interest if I use the card for my side business?

Only the interest on the portion of the card used for business expenses is deductible. If you use the same card for personal purchases, you must separate the two. Track which charges were business-related and calculate what percentage of your total balance they represent. That percentage of your interest paid is deductible; the rest is not.

What if I paid off a credit card with a business loan—can I deduct the interest on the loan?

Yes, if the original credit card debt was for business purposes. The interest on the business loan is deductible. However, if the credit card debt was personal, moving it to a business loan does not make the interest deductible. The deduction depends on the original purpose of the money, not the type of loan you used to pay it off.

Is credit card interest deductible if I use the card for a rental property?

If you own a rental property and use a credit card to pay for expenses related to that property—repairs, maintenance, property management fees—the interest on that portion of the card is deductible as a rental expense. You must track which charges relate to the rental property and calculate the corresponding interest.

Can I deduct interest on a credit card I used to start my business?

Yes, if you used the card to pay for startup expenses. Business startup costs are deductible, so the interest on a credit card used for those costs is also deductible. However, you must document what the money was spent on and show that it was genuinely for business purposes, not personal use.

Does paying off a credit card with a 0% balance transfer card change the deduction?

No. The deductibility of the original interest does not change based on how you later pay the balance. If the original debt was personal, the interest remains non-deductible. If it was business-related, the interest remains deductible. A balance transfer is simply a way to move the debt; it does not change what the money was originally used for.