HELOC interest is tax-deductible only if you use the borrowed money to buy, build, or improve a home that secures the loan

The IRS allows you to deduct HELOC interest — but only under specific conditions. The money has to go toward the home itself. If you borrow $50,000 against your house and use it to pay off credit cards, fund a business, or take a vacation, that interest is not deductible. If you use it to add a room, replace the roof, or pay down the mortgage on the same house, the interest becomes deductible on your federal tax return.

This rule comes from Section 163(h) of the tax code, which limits home equity debt deductions to loans secured by a first or second home, where the proceeds go toward home acquisition or improvement. The IRS does not care whether you borrowed through a HELOC, a home equity loan, or a cash-out refinance — the use of the money is what matters.

You will need to track how you spent the money and keep receipts or bank statements showing the connection between the HELOC draw and the home improvement. The lender sends you a Form 1098 each year showing interest paid, but that form does not tell the IRS whether the money went to the house or somewhere else. That burden falls on you if you are audited.

Key Takeaways

  • HELOC interest is deductible only when the borrowed funds are used to buy, build, or substantially improve the home that secures the line of credit.
  • Using HELOC money for debt consolidation, business expenses, or personal spending makes the interest non-deductible, even though the loan is secured by your home.
  • You must document how the money was spent — bank statements, contractor invoices, and receipts are your proof if the IRS questions the deduction.
  • The Form 1098 your lender sends shows total interest paid but does not prove the money went to home improvement, so you need separate records.
  • Tax law changed in 2018: HELOC interest is now deductible only on loans up to $750,000 of home equity debt per household, down from $1 million.

How the IRS determines whether your HELOC interest counts

The IRS uses a straightforward test: did the money improve or acquire the home? Improvements include additions, renovations, repairs that add value, and systems replacements (roof, HVAC, foundation work). Acquiring the home means using HELOC proceeds to buy the property in the first place, which is rare because most people use a mortgage for that.

The timing and mechanics matter less than the end use. You could draw from your HELOC, deposit the money in a checking account, and then write a check to a contractor three weeks later — that still counts as using the money for home improvement. But if you draw the same amount and use it to pay tuition, the interest is not deductible even if you later use other money to renovate the kitchen.

Refinancing existing debt does not count as home improvement. If you have a HELOC and use it to pay off another HELOC or a home equity loan, the interest on the new HELOC is still deductible — but only because the original money went to home improvement. Once you trace the money back to a non-may have access to use, the chain breaks.

The $750,000 debt limit and how it affects your deduction

As of 2018, the IRS caps the deductible home equity debt at $750,000 per household. This means if you have $800,000 in HELOC debt used for home improvement, you can deduct interest only on $750,000 of it. Married couples filing jointly get one $750,000 limit between them, not $750,000 each.

The limit applies to the total of all home equity debt — HELOCs, home equity loans, and second mortgages combined. If you have a $400,000 HELOC and a $300,000 home equity loan, both used for home improvement, you are at $700,000 and can deduct all the interest. If you add another $100,000 HELOC, only $50,000 of that new debt qualifies for the deduction.

This limit does not affect the deduction for mortgage interest on your primary loan (up to $750,000 of principal). The two limits are separate. You can deduct interest on a $750,000 mortgage plus interest on $750,000 of home equity debt, but the home equity portion cannot exceed $750,000 on its own.

Documents you need to prove the deduction

Start with your HELOC statements showing the draws and the dates. Next, gather evidence of how the money was used: contractor invoices, receipts from home improvement stores, permits, inspection reports, or architect bills. If you paid a contractor, get an invoice showing the work performed and the amount paid.

Bank statements linking the HELOC draw to a payment are powerful proof. If you drew $25,000 on March 15 and your bank statement shows a $25,000 transfer to a contractor on March 18, that creates a clear chain. Keep the Form 1098 your lender sends, but understand that it only proves you paid interest — not that the money went to the house.

If you are audited, the IRS will ask you to show this documentation. Without it, you lose the deduction. The burden is on you to prove the connection, not on the IRS to disprove it. Photographs of the completed work, before-and-after images, and permits from your local building department all strengthen your case.

When HELOC interest is definitely not deductible

If you use HELOC money for any of these purposes, the interest is not deductible: paying off credit cards or other consumer debt, funding a business or investment, paying tuition or education expenses, buying a car, taking a vacation, or covering medical bills. The fact that your home secures the loan does not matter — the IRS looks at where the money went, not where it came from.

A common mistake is using a HELOC for debt consolidation. You borrow $30,000 against your house to pay off credit card balances. The credit card interest was not deductible, and neither is the HELOC interest, even though you now owe the money to a lender with a claim on your home. The use of the proceeds — paying off non-deductible debt — determines the outcome.

Business use is another frequent source of confusion. If you own a business and borrow against your home to fund it, the HELOC interest is not deductible as a home equity deduction. You might be able to deduct it as a business expense on Schedule C, but that is a different calculation and requires different documentation. Consult a tax professional if this applies to you.

How to report HELOC interest on your tax return

If your HELOC interest is deductible, you report it on Schedule A (Itemized Deductions) as part of your mortgage interest deduction. You will receive a Form 1098 from your lender showing the interest paid during the year. Transfer that amount to Schedule A, line 8 (Mortgage interest and points reported to you on Form 1098).

You can only claim this deduction if you itemize. Many taxpayers take the standard deduction instead, which means they do not report mortgage or HELOC interest at all. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married couples filing jointly. If your total itemized deductions (HELOC interest plus property taxes, charitable donations, and other may have access to expenses) exceed the standard deduction, itemizing saves you money.

If you have questions about whether your specific HELOC use qualifies, or whether itemizing makes sense for your situation, a tax professional or CPA can review your records and advise you. The IRS also publishes Publication 936 (Home Mortgage Interest Deduction), which walks through the rules in detail.

Frequently Asked Questions

Can I deduct HELOC interest if I used the money to pay off my mortgage?

No. Paying off an existing mortgage is not considered a home improvement or acquisition. The original mortgage interest was deductible, but once you pay it off with HELOC proceeds, the HELOC interest is not. The exception: if you used the HELOC to refinance the mortgage at a lower rate and the total debt does not exceed $750,000, you may deduct interest on the refinanced amount, but only because the original mortgage was deductible.

What if I used part of my HELOC for home improvement and part for something else?

You must allocate the interest proportionally. If you borrowed $100,000 and used $60,000 for a kitchen renovation and $40,000 for a car, you can deduct interest only on the $60,000 portion. This requires clear documentation of how each dollar was spent. Many people in this situation consult a tax professional to calculate the split correctly.

Do I have to report the HELOC on my tax return even if I do not deduct the interest?

No. The HELOC itself is not reported on your tax return. Only the interest, if it qualifies for deduction, goes on Schedule A. If the interest is not deductible, you simply do not report it. The Form 1098 your lender sends is for your records and the IRS's information, but you only use it if you are claiming the deduction.

Can I deduct HELOC interest if I have not yet done the home improvement?

No. The money must actually be spent on the home improvement before you can deduct the interest. If you draw from your HELOC and hold the money in savings while planning a renovation, the interest is not deductible during that waiting period. Once you spend the money on the improvement, interest accruing after that point becomes deductible.

Does the type of home improvement matter for the deduction?

The improvement must add value to the home or prolong its useful life. Routine maintenance (painting, cleaning gutters) typically does not may have access to. Major repairs and replacements (new roof, foundation work, HVAC system) usually do. Additions and renovations almost always may have access to. If you are unsure, the IRS Publication 936 provides examples, or a tax professional can review your specific project.