Credit card interest is not tax-deductible for personal spending
You cannot deduct credit card interest on your federal income tax return if you used the card for personal expenses — groceries, gas, medical bills, or anything else you buy for yourself or your household. The IRS treats this interest as a personal expense, the same way it treats the cost of the items themselves.
The one exception is if you used a credit card to borrow money for a business you own, or to buy investment property or stocks. In those cases, the interest may be deductible, but the rules are specific and depend on how you used the money. A tax professional should review your situation before you claim anything.
Key Takeaways
- Interest on credit cards used for personal purchases cannot be deducted from your taxes under any circumstance.
- Interest on borrowed money used to start or run a business, or to buy investment property, may be deductible if you meet IRS requirements.
- Interest on a home equity line of credit (HELOC) used to improve your home may be deductible, but interest on a HELOC used for personal spending is not.
- Keeping clear records of what you borrowed money for is essential if you claim any interest deduction.
- A tax professional can tell you whether your specific situation qualifies for a deduction.
When business credit card interest might be deductible
If you own a business and use a credit card to pay business expenses — supplies, equipment, advertising, or payroll — the interest on that card is usually deductible. You report it on Schedule C (for sole proprietors) or on your business tax return, depending on how your business is structured.
The key requirement is that the money was borrowed for the business. If you use the same card for both business and personal expenses, you need to track which charges are which. The IRS expects you to separate them, and if you cannot show that a charge was business-related, you cannot deduct the interest that accrued on it.
If you are self-employed and unsure whether an expense counts as business-related, a tax professional who works with your industry can clarify. Some expenses — like a home office or a vehicle used partly for business — have specific rules about how much you can deduct.
Investment interest and margin account rules
If you borrowed money on a credit card specifically to buy stocks, bonds, or other investments, the interest may be deductible as investment interest. However, the deduction is limited: you can only deduct investment interest up to the amount of investment income you earned that year.
For example, if you earned $500 in dividends and paid $800 in interest on money borrowed to buy stocks, you can only deduct $500 of the interest. The remaining $400 carries forward to the next year, and you can deduct it then if you have investment income to offset it.
Most people do not use credit cards to buy investments because credit card interest rates are much higher than margin loans or other investment borrowing. But if you did, keep the statements showing what you bought and when.
Home equity lines of credit and mortgage interest
A home equity line of credit (HELOC) is different from a credit card, but the tax rules are similar. If you borrowed against your home to improve it — adding a room, replacing a roof, upgrading the kitchen — the interest may be deductible as mortgage interest. You report this on Schedule A if you itemize deductions.
If you used a HELOC for personal spending — paying off other debts, funding a vacation, or covering medical bills — the interest is not deductible, even though the loan is secured by your home. The IRS looks at what you did with the money, not what collateral you put up.
Mortgage interest rules changed in 2017. Currently, you can deduct interest on up to $750,000 of home debt (or $375,000 if you are married filing separately). A tax professional can tell you whether your situation falls within this limit.
How to document interest for tax purposes
If you believe you have deductible interest, your credit card company or lender will send you a statement at the end of the year showing how much interest you paid. For business credit cards, this usually comes as part of your year-end tax documents. For investment interest, you may need to calculate it yourself from your monthly statements.
Keep copies of your credit card statements and any loan documents that show the purpose of the borrowing. If the IRS ever questions your deduction, you will need to show that the money was actually used for the purpose you claimed. A straightforward note in your records — "borrowed $5,000 on credit card for business equipment" — is enough, but having the receipt for what you bought is better.
If you use accounting software or work with a bookkeeper, they can help you track deductible interest separately from personal interest as charges come in. This makes tax time much simpler.
Why the IRS does not allow personal credit card interest deductions
The IRS treats personal credit card interest as a personal expense, similar to the cost of the things you bought with the card. Just as you cannot deduct the price of groceries or a car repair, you cannot deduct the interest you paid to borrow money for those things.
This rule has been in place since 1986. Before that, all interest was deductible, which meant people could borrow for personal spending and write off the cost. Congress changed the law to encourage saving and reduce the tax benefit of consumer debt.
The exception for business and investment borrowing exists because those loans are seen as creating income or assets, not just funding consumption. A business loan helps you earn money; a personal loan just lets you spend money you do not have yet.
What to do if you have mixed-use debt
If you borrowed money for both business and personal use, you need to split the interest between the two. For example, if you took out a $10,000 personal loan and used $6,000 for your business and $4,000 for a vacation, you can only deduct the interest on the $6,000 portion.
Calculate the split based on how much of the borrowed money went to each use. If you cannot show exactly how much went where, the IRS will assume none of it was for business or investment purposes. Keep receipts, invoices, or bank transfers that show where the money went.
If you regularly borrow for both purposes, consider opening separate accounts — one for business borrowing and one for personal borrowing. This makes it much easier to track what is deductible and what is not.
Frequently Asked Questions
Can I deduct credit card interest if I used the card to pay medical bills?
No. Medical expenses themselves may be deductible if they exceed a certain percentage of your income, but the interest you paid to borrow money for them is not. The IRS treats the interest as a personal expense, separate from the medical expense itself.
What if I paid off a credit card with a business loan — can I deduct the interest on the business loan?
Only if the business loan was used to pay off business debt. If you used a business loan to pay off personal credit card charges, the interest on the business loan is not deductible because the money was ultimately spent on personal expenses. The source of the money does not matter; what matters is what you spent it on.
Do I need to report credit card interest I paid to the IRS?
No. Credit card companies do not report interest paid to the IRS the way they report mortgage interest or investment income. You only report it if you are claiming it as a deduction on your tax return. If you are not claiming a deduction, you do not need to mention it.
Can I deduct interest on a credit card I used to start a business?
Yes, if you can show that the charges on the card were business expenses. Keep your statements and receipts organized by category — supplies, equipment, advertising, and so on. A tax professional can help you determine which charges may have access to and how to report them.
What if my credit card company sent me a 1099 form for interest paid?
Credit card companies do not typically send 1099 forms for interest paid. If you received one, it may be for something else, such as a settlement or a cancelled debt. Read the form carefully or contact the company to understand what it covers. If you have questions about how to report it, a tax professional can help.