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HEL vs HELOC

Home Equity Loan and HELOC Tax Deduction Rules (2026): What Actually Qualifies

The most repeated half-truth in home equity borrowing is "may be tax-deductible." Here is the complete picture, citing IRS Publication 936 directly, including the 2025 OBBBA permanence and the 2026 standard deduction math.

Last verified: April 2026 | Source: IRS Publication 936

The Three Requirements (All Must Be Met)

  1. 1The debt must be used to buy, build, or substantially improve the qualifying home that secures it. (IRS Pub 936, 2025 edition)
  2. 2Total qualified residence debt must not exceed $750,000 combined ($375,000 if married filing separately). Includes your first mortgage plus any HEL/HELOC.
  3. 3You must itemise deductions on Schedule A. The 2026 standard deduction is $31,600 (MFJ), $15,800 (single), $23,700 (Head of Household).

OBBBA Context: Why the Rules Are Permanent Now

The Tax Cuts and Jobs Act of 2017 (TCJA) dramatically changed home equity deduction rules: it eliminated deductibility for home equity debt used for non-home purposes and imposed the $750,000 combined debt cap. However, these TCJA provisions were set to sunset after December 31, 2025, which would have restored the pre-TCJA rules (broader deductibility regardless of use).

The One Big Beautiful Bill Act (OBBBA), signed into law in 2025, made the TCJA limitations permanent. The sunset was eliminated. Pre-2018 home equity deduction rules -- where you could deduct interest on $100,000 of home equity debt regardless of how you used it -- are not returning.

What Qualifies vs What Does Not

Qualifies for Deduction

  • ✓ New room addition
  • ✓ Kitchen remodel (capital improvement)
  • ✓ New HVAC system
  • ✓ Replacement roof
  • ✓ New windows and doors
  • ✓ Finished basement
  • ✓ Swimming pool installation
  • ✓ Solar panel installation
  • ✓ Bathroom addition or full remodel
  • ✓ Purchase of the securing home
  • ✓ New home construction

Does NOT Qualify

  • ✗ Debt consolidation (credit cards, personal loans)
  • ✗ College or university tuition
  • ✗ Medical bills
  • ✗ Wedding expenses
  • ✗ Vacation or travel
  • ✗ Car purchase
  • ✗ Business investment (even in a home-based business)
  • ✗ Emergency fund (undrawn or for non-home use)
  • ✗ Routine repairs (patching vs replacing)
  • ✗ Appliance replacement (same capacity)
  • ✗ Painting touch-ups, carpet cleaning

Itemisation Math: When the Deduction Actually Helps

You only benefit from itemising if your total itemised deductions exceed the standard deduction. The 2026 standard deduction is high -- most filers are better off not itemising.

Worked Example: MFJ Couple Itemising

SALT deduction (capped):$10,000
First mortgage interest:$14,000
HEL interest (qualifying renovation):$5,000
Charitable contributions:$3,000
Total itemised:$32,000
2026 MFJ standard deduction:$31,600
Itemising excess:$400
Tax savings at 24% marginal (on $400 excess):$96

In this example, the $5,000 of HEL interest contributes to itemising, but barely. The actual tax benefit of the HEL portion specifically is modest. If the HEL interest were $8,000 instead: itemised total $35,000, excess $3,400, savings at 24% = $816.

Per IRS data, approximately 75% of all tax filers claim the standard deduction post-TCJA. For these filers, the home equity interest deduction provides zero benefit regardless of how the loan was used.

The $750,000 Cap in Practice

The cap applies to the total of all qualified residence debt: your first mortgage plus any HEL or HELOC. If your first mortgage is $700,000 and you add a $100,000 HEL, only 75% of the HEL interest is deductible (since $700k + $100k = $800k, $50k over the cap; 750/800 = 93.75% of total qualifies).

Grandfathered debt: mortgage debt originated on or before December 15, 2017 retains the old $1,000,000 cap. If your first mortgage pre-dates that cutoff, consult your tax advisor before assuming the $750k cap applies.

Frequently Asked Questions

Is HELOC interest tax deductible in 2026?
Only under specific conditions: the HELOC proceeds must be used to buy, build, or substantially improve the home that secures the loan. Total qualified residence debt (first mortgage plus HELOC plus any HEL) must stay under $750,000 ($375,000 if married filing separately). And you must itemise deductions on Schedule A rather than taking the standard deduction. For most filers in 2026, the $31,600 married filing jointly standard deduction means itemising no longer pays off, making the HELOC deduction unavailable in practice.
Is home equity loan interest tax deductible when used for debt consolidation?
No. Under IRS Publication 936, home equity interest is deductible only when the debt is used to buy, build, or substantially improve the qualifying residence that secures the loan. Using the loan proceeds to pay off credit card debt, even credit card debt originally incurred for home improvement, does not qualify. The IRS requires you to trace the proceeds to a qualifying use.
What did the OBBBA do to the home equity interest deduction?
The One Big Beautiful Bill Act, signed in 2025, made permanent the TCJA limitations on home equity interest deductions. Before OBBBA, the TCJA restrictions (which removed the old unlimited use deduction and instituted the buy/build/improve requirement plus the $750,000 combined debt cap) were scheduled to sunset after December 31, 2025. OBBBA eliminated that sunset. Pre-TCJA rules -- where home equity interest was broadly deductible regardless of use -- are not returning.
How do I document home equity interest for a tax deduction?
Your lender will send a Form 1098 each January showing interest paid in the prior year (Box 1). Keep receipts and contractor invoices for the improvements you funded. Enter the deductible interest on Schedule A, Line 8a. If you used the loan for mixed purposes (partly home improvement, partly other), you must allocate interest proportionally to the qualifying use. Keep these records for at least three years from your filing date (IRS statute of limitations).

Tax disclaimer: This page is for general educational purposes only. Tax law is complex and your situation may differ. Consult a licensed CPA or enrolled agent before making deduction claims on your return. IRS Publication 936 is available at irs.gov/pub/irs-pdf/p936.pdf.