Check your rate

Is HELOC interest tax-deductible?

By King of HELOC Editorial · Reviewed by Luke Orren, Head of Content · Last updated

HELOC interest is deductible only when the funds are used to buy, build, or substantially improve the home that secures the line of credit. The Tax Cuts and Jobs Act of 2017 eliminated deductibility for personal spending such as debt consolidation or vacations. Consult a tax professional to confirm your specific situation qualifies.

Is HELOC interest actually tax-deductible?

HELOC interest can be tax-deductible, but the rules are more specific than many homeowners realize. The Tax Cuts and Jobs Act of 2017 (TCJA) significantly narrowed the circumstances in which home equity interest qualifies — and the key factor is not the type of loan, but how you spend the money.

Before diving in, an important note: this page is educational and general in nature. Tax law is complex and changes over time. Always consult a qualified tax professional or CPA before making financial decisions based on potential deductibility.

What is the “buy, build, or substantially improve” rule?

Under current federal tax law (as of 2026), interest on a HELOC is deductible only when the borrowed funds are used to buy, build, or substantially improve the home that secures the line of credit.

This is sometimes called the “qualified residence interest” standard. The three qualifying uses break down like this:

Use of fundsPotentially deductible?
Purchase the home securing the HELOCYes
Build a new structure on the propertyYes
Substantially improve the secured homeYes
Consolidate credit card or other personal debtNo
Pay for a vacation, car, or other personal expenseNo
Fund college tuition or medical billsNo
Invest in stocks or other assetsNo

The table above is a general guide only. Individual circumstances vary, and the IRS may have specific rules that affect your situation differently.

What counts as a substantial improvement?

A substantial improvement is broadly defined as work that:

Common examples that typically qualify:

Common examples that typically do not qualify:

If your project sits in a gray area, a tax professional can help you document and classify it correctly.

What changed in 2017, and does it still apply?

Before the TCJA took effect in 2018, homeowners could deduct HELOC interest on up to $100,000 of debt regardless of how the funds were used. That flexibility was eliminated.

Under the TCJA rules that remain in place through at least the 2025 tax year:

Some provisions of the TCJA are scheduled to expire, which could change the rules after 2025. A tax advisor can keep you current on what applies in the year you file.

Do I need to track how I spend my HELOC funds?

Yes — and this is one of the most practical points homeowners often overlook. The IRS requires that you be able to demonstrate how borrowed funds were used. If you draw from your HELOC for a mix of purposes, only the portion used for qualifying improvements is potentially deductible.

Good record-keeping practices include:

  1. Keep a dedicated bank account or set of receipts for improvement-related draws
  2. Save all contractor invoices, permits, and payment records
  3. Note the dates and amounts of each draw alongside its purpose
  4. Work with a CPA who can help you trace funds correctly on your return

Does the deduction apply to all HELOC holders?

Not automatically. To potentially benefit from the deduction, you generally need to:

Because the standard deduction increased substantially under the TCJA, many homeowners find that itemizing no longer saves them money even when they have deductible mortgage interest. A tax professional can run the numbers for your specific return.

What should I do before using a HELOC for a home improvement?

If tax deductibility matters to your decision, consider these steps before drawing funds:

  1. Confirm the project qualifies — ask your CPA whether the planned work meets the “substantial improvement” standard
  2. Check your itemized vs. standard deduction — find out whether you are likely to benefit from itemizing
  3. Set up clean recordkeeping — create a paper trail from the HELOC draw to the contractor payment
  4. Keep your mortgage balance in mind — if you have an existing mortgage, confirm where your combined debt lands relative to the $750,000 limit

Using home equity to improve your property is one of the strongest use cases for a HELOC — both financially and, under current law, potentially from a tax standpoint. Understanding the rules upfront helps you use the line strategically.

Frequently asked questions

Can I deduct HELOC interest if I used the money to consolidate credit card debt?

No. Under current law, interest on funds used for personal spending — including debt consolidation — is not deductible. Only funds used to buy, build, or substantially improve the home that secures the HELOC qualify.

What counts as a 'substantial improvement' for the HELOC tax deduction?

The IRS considers projects that add value, prolong the home's useful life, or adapt it to new uses — such as an addition, new roof, or kitchen renovation — to be substantial improvements. Routine repairs and maintenance typically do not qualify.

Is there a dollar limit on the deductible HELOC interest?

Yes. Under current law, interest on combined home acquisition and home equity debt up to $750,000 ($375,000 if married filing separately) is potentially deductible. A tax professional can help you determine how the limit applies to your situation.

Do I need to itemize to deduct HELOC interest?

Yes. You must itemize deductions on Schedule A of your federal return. If your standard deduction exceeds your itemized deductions, you would generally not benefit from deducting mortgage or HELOC interest.