Quick Answer
Yes, you can deduct home equity loan interest if you use the funds to buy, build, or substantially improve your home. The IRS allows deductions on debt up to $750,000 for married filing jointly ($375,000 for single filers). Interest on a $50,000 home equity loan at 7% saves roughly $875 annually in taxes for someone in the 25% bracket.
Best Answer
Robert Kim, CPA
Best for homeowners using home equity loans for kitchen remodels, additions, or other substantial improvements
When home equity loan interest is deductible
Yes, you can deduct home equity loan interest, but only if you use the money to "buy, build, or substantially improve" your home. This is a key change from pre-2018 tax law, when home equity interest was deductible regardless of how you used the funds.
The debt limit is $750,000 combined for your primary mortgage and home equity loan (or $375,000 if married filing separately). This includes your original mortgage balance plus the home equity loan amount.
Example: $50,000 kitchen renovation
Let's say you take a $50,000 home equity loan at 7% interest to remodel your kitchen:
Your actual out-of-pocket interest cost is reduced by your tax bracket percentage.
What qualifies as "substantial improvement"
Qualifying improvements that add value or extend your home's life:
Non-qualifying expenses:
Documentation you need
Keep detailed records linking loan proceeds to home improvements:
The IRS may audit large deductions, so documentation is critical.
Debt limit calculation
*Only interest on $750,000 of the $900,000 total debt is deductible.
Key factors that affect your deduction
What you should do
1. Document everything: Keep all receipts, contracts, and loan documents
2. Use Form 1098: Your lender will send this showing interest paid
3. Itemize deductions: You must itemize to claim mortgage interest (can't use standard deduction)
4. Consider timing: Large projects spanning multiple years may benefit from strategic timing
[Use our return scanner tool](https://misseddeductions.com/tools/return-scanner) to check if you're missing this deduction on a prior year's return.
Key takeaway: Home equity loan interest is fully deductible if used for home improvements and your total mortgage debt stays under $750,000. A $50,000 loan at 7% saves $875-$1,120 annually in taxes depending on your bracket.
*Sources: [IRS Publication 936](https://www.irs.gov/pub/irs-pdf/p936.pdf), IRC Section 163(h)(3)*
Key Takeaway: Home equity loan interest is fully deductible when used for home improvements, potentially saving $875-$1,120 annually in taxes on a $50,000 loan depending on your tax bracket.
Home equity loan interest deductibility based on debt levels and usage
| Scenario | Primary Mortgage | Home Equity Loan | Total Debt | Deductible Interest |
|---|---|---|---|---|
| Within limit | $400,000 | $50,000 | $450,000 | 100% of interest |
| At limit | $700,000 | $50,000 | $750,000 | 100% of interest |
| Over limit | $800,000 | $100,000 | $900,000 | 83% of interest |
More Perspectives
Robert Kim, CPA
Best for landlords using home equity loans on rental properties or their primary residence for investment purposes
Home equity loans for rental property improvements
Real estate investors face different rules depending on which property secures the loan and how they use the funds.
If you take a home equity loan against your primary residence to improve a rental property:
If you take a home equity loan against the rental property itself:
Example: $75,000 rental property renovation
You take a home equity loan against your primary residence to renovate a rental kitchen:
This creates a substantial tax benefit if you're in a high bracket and have rental income to offset.
Key documentation for investors:
Key takeaway: Real estate investors can deduct home equity loan interest as a rental expense on Schedule E, plus depreciate the improvements, creating potentially larger tax benefits than personal residence rules.
Key Takeaway: Real estate investors can deduct home equity loan interest as rental expense plus depreciate improvements, potentially creating $7,600+ in annual deductions on a $75,000 renovation project.
Robert Kim, CPA
Best for homeowners with high mortgage balances who need to understand the $750,000 combined debt limit
Managing the $750,000 debt limit
If your combined mortgage and home equity debt approaches $750,000, you need to calculate what percentage of your interest is deductible.
The calculation:
Deductible percentage = $750,000 ÷ Total mortgage debt
Example: Over the limit scenario
Your situation:
Interest deduction calculation:
Strategies to maximize your deduction
Pay down the primary mortgage first:
If you have extra cash, paying down your primary mortgage creates more "room" under the $750,000 limit for future home equity borrowing.
Time your improvements strategically:
If you're planning multiple projects, consider spacing them to stay under the limit, or complete them before taking on additional mortgage debt.
Consider cash-out refinancing:
Instead of a separate home equity loan, you might refinance your primary mortgage for a higher amount. This counts as one loan for the $750,000 limit.
Key takeaway: Homeowners with high mortgage balances can only deduct the percentage of home equity interest that keeps total debt under $750,000, requiring careful calculation and strategic planning.
Key Takeaway: When total mortgage debt exceeds $750,000, only a percentage of home equity interest is deductible, requiring strategic debt management to maximize tax benefits.
Sources
- IRS Publication 936 — Home Mortgage Interest Deduction
- IRC Section 163(h)(3) — Interest deduction rules for qualified residence interest
Reviewed by Robert Kim, CPA on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.