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

The tax deduction for a home equity line of credit depends entirely on what you do with the money. If you borrow against your home and use those funds to renovate your kitchen, add a room, or pay off a mortgage on that same property, the interest you pay may be deductible. If you use HELOC money to pay credit card debt, buy a car, or cover medical bills, the interest is not deductible, even though the loan is secured by your home.

The IRS treats HELOC interest the same way it treats mortgage interest: it is deductible only when the borrowed funds are used for "acquisition indebtedness" or "home improvement indebtedness." Those terms mean money borrowed to acquire, construct, or substantially improve a may have access to residence — typically your primary home or a second home you own.

There is also a dollar limit. As of 2024, you can deduct interest only on up to $750,000 of home acquisition debt and home improvement debt combined (or $375,000 if you are married filing separately). If your HELOC balance exceeds that threshold, only the interest on the first $750,000 is deductible.

Key Takeaways

  • HELOC interest is deductible only when you use the borrowed money to buy, build, or improve a home that secures the loan.
  • Using HELOC funds for other purposes — such as paying off credit cards, funding a business, or covering personal expenses — makes the interest non-deductible.
  • The deduction is limited to interest on $750,000 of combined home acquisition and home improvement debt per household.
  • You must itemize deductions on your tax return to claim HELOC interest; the standard deduction does not include it.
  • Keeping records of how you spent HELOC proceeds is essential if you are audited, because the IRS will ask for proof of the connection between the loan and the home improvement.

How the IRS defines deductible HELOC use

The IRS looks at the purpose of the loan, not the source of the funds or the collateral. A HELOC is straightforward a loan secured by your home's equity. What matters for the tax deduction is whether you used the money to acquire or improve that home.

Acquisition indebtedness means money borrowed to buy a home. If you took out a HELOC to help purchase the house that secures the HELOC, the interest is deductible. This is uncommon — most people use a mortgage for purchase — but it is possible.

Home improvement indebtedness means money borrowed to build, construct, or substantially improve a home. Painting a room, replacing a roof, adding insulation, installing new plumbing or electrical systems, or building an addition all count. The improvement must add value to the home, prolong its useful life, or adapt it to a new use. Routine repairs and maintenance do not may have access to.

If you borrow $50,000 on a HELOC and spend $30,000 on a kitchen renovation and $20,000 on a vacation, only the $30,000 portion qualifies. The interest attributable to the $20,000 is not deductible.

Non-deductible uses of HELOC funds

HELOC interest becomes non-deductible the moment you use the money for something other than home acquisition or improvement. Common non-deductible uses include paying off credit card balances, funding a business, buying a vehicle, paying tuition, covering medical expenses, or taking a vacation.

The fact that your home secures the loan does not change this rule. A HELOC is still a home-secured loan, but the tax code does not allow a deduction for interest on money used for personal, business, or investment purposes outside of home improvement.

If you use a HELOC to pay off a mortgage on a rental property or investment property you own, the interest is also not deductible as a HELOC deduction. However, mortgage interest on rental or investment properties may be deductible under different rules — that is a separate tax question for a tax professional.

The $750,000 debt limit and how it applies

Even if all your HELOC borrowing goes toward home improvements, there is a ceiling on how much interest you can deduct. The limit applies to the combined total of home acquisition debt and home improvement debt across all loans secured by your home.

If you have a $400,000 mortgage and a $500,000 HELOC, both used for home acquisition or improvement, your total home debt is $900,000. Only $750,000 of that qualifies for the interest deduction. The interest on the remaining $150,000 is not deductible.

This limit has been in place since 2018 and applies to tax years through 2025. Congress may extend, modify, or let it expire after that date. The limit is per household, not per loan, so it does not matter whether you have one HELOC or multiple HELOCs — the $750,000 cap covers all of them combined.

Itemizing deductions versus the standard deduction

To claim a HELOC interest deduction, you must itemize deductions on your federal tax return using Schedule A. You cannot claim it if you take the standard deduction.

The standard deduction for 2024 is $14,600 for single filers and $29,200 for married couples filing jointly. If your total itemized deductions — including HELOC interest, mortgage interest, property taxes, charitable donations, and medical expenses — do not exceed the standard deduction, you will not benefit from deducting HELOC interest.

Many homeowners find that their itemized deductions do not exceed the standard deduction, especially after the 2017 tax law changes. In those cases, even if your HELOC interest is technically deductible, you will not see a tax benefit because you will claim the standard deduction instead.

Keeping records to support your deduction

If you claim a HELOC interest deduction, the IRS may ask for documentation showing that you used the borrowed funds for home improvement. Keep receipts, invoices, and bank statements that trace the money from the HELOC disbursement to the home improvement expense.

A clear paper trail is especially important if the time between borrowing and spending is long, or if you deposited the HELOC funds into a general account before using them for the improvement. The IRS wants to see that the money was actually spent on the home, not diverted to other purposes.

If you cannot document the use of the funds, the IRS may disallow the deduction during an audit. Keeping records for at least three to seven years after you file your return is standard practice for tax documentation.

HELOC interest deduction versus other home-related tax benefits

HELOC interest deduction is separate from other tax benefits related to homeownership. The mortgage interest deduction applies to loans used to buy or improve a home, regardless of whether they are mortgages or HELOCs. The property tax deduction allows you to deduct state and local property taxes up to $10,000 per year.

If you sell your home and have a capital gain, you may be able to exclude up to $250,000 of that gain from income (or $500,000 if you are married filing jointly), provided you meet the ownership and use tests. This exclusion is not a deduction — it is an exclusion of income — but it is another tax benefit tied to homeownership.

These benefits do not overlap or conflict. You can claim HELOC interest deduction, property tax deduction, and the capital gains exclusion in different tax years or in the same year, as long as you meet the requirements for each.

Frequently Asked Questions

Can I deduct HELOC interest if I used the money to pay off a credit card?

No. The IRS does not allow a deduction for HELOC interest when the funds are used to pay off personal debt, including credit cards. Even though your home secures the HELOC, the interest is only deductible if you used the borrowed money to acquire or improve a home.

What counts as a home improvement for the deduction?

Home improvements must add value to the home, prolong its life, or adapt it to a new use. Examples include roof replacement, kitchen or bathroom renovation, adding a room, installing new HVAC systems, and upgrading electrical or plumbing. Routine maintenance and repairs — such as fixing a leak or repainting — do not may have access to.

If I have a $100,000 HELOC but only use $60,000 for a home improvement, can I deduct interest on the full $100,000?

No. You can only deduct interest on the $60,000 that was actually used for the home improvement. The interest on the remaining $40,000 is not deductible. You will need to track how much of your HELOC balance is tied to deductible versus non-deductible uses.

Do I need to file a special form to claim HELOC interest deduction?

You claim HELOC interest deduction on Schedule A (Itemized Deductions), which you attach to your Form 1040. You will list the interest paid on all home loans, including HELOCs, in the mortgage interest section. Your HELOC lender will send you a Form 1098 showing the interest you paid during the year.

What happens if I use a HELOC for home improvement but then later use it for something else?

Once you have used HELOC funds for a non-deductible purpose, the interest on that portion of the loan becomes non-deductible going forward. If you borrowed $50,000 for a renovation and later withdrew another $30,000 for a vacation, the interest on the $30,000 is not deductible. You will need to track the use of each withdrawal separately.