Interest on a home equity loan or HELOC is tax deductible only when two things are true at once. You spent the money to buy, build or substantially improve the home that secures the loan, and you itemize deductions instead of taking the standard deduction. Miss either one and the interest is just a cost of borrowing, no matter what the lender’s ad implied.
That sounds simple, but it plays out very differently from household to household. A kitchen remodel can qualify while paying off credit cards with the same loan never does. A HELOC on your house can’t be deducted if you used it to buy a cabin. And most people who do qualify save far less than they expect, because the standard deduction swallows much of the benefit. Below, we walk through the rules, run the real numbers, and answer the situations people actually ask about.
Nine Straight Answers Before Tax Season
These are the questions we hear most from people holding a home equity loan or HELOC. Short answers first, details below.
Only the part used to buy, build or substantially improve the home that secures the loan, and only if you itemize.
No. HELOCs, home equity loans, second mortgages and cash-out refinances all follow the same use test and the same limit.
No. Debt consolidation is a personal use, so that interest isn’t deductible on Schedule A.
$750,000 of combined qualifying debt on your main and second home, or $375,000 if married filing separately. Older loans from before December 16, 2017 keep a $1 million limit.
It locked it in. The law signed in July of last year made the $750,000 cap and the home-improvement-only rule permanent instead of expiring.
Only to the extent your itemized deductions beat the standard deduction. Many households save little or nothing.
No. Repainting or fixing a leak maintains the home. Improvements add value, extend its life or adapt it to a new use.
Not if the HELOC is secured by your main home. The loan must be secured by the home you buy or improve.
Your Form 1098, plus contracts, invoices and payment records that tie loan draws to specific home projects.
The Two Tests Your Interest Has to Pass
Every dollar of home equity interest runs through the same two filters. It has to clear the first to be eligible, and the second to be worth anything.
The use test: what did the money pay for?
Since 2018, the IRS no longer cares what kind of loan you have. It cares what the loan proceeds were used for. Money that buys, builds or substantially improves your main home or second home, where that same home secures the loan, counts as home acquisition debt. Everything else is personal borrowing, even though your house is the collateral.
The loan also has to be secured by the home in a legal sense. You sign a mortgage or deed of trust that makes the home collateral, and it’s recorded under your state’s rules. A personal loan for a remodel doesn’t qualify, however clearly the money went into the house, because it isn’t secured by it.
The itemizing test: does it beat the standard deduction?
Qualifying interest goes on Schedule A, line 8, with your first-mortgage interest. You only use Schedule A if your total itemized deductions, including state and local taxes, mortgage interest and charitable gifts, exceed your standard deduction. For this tax year that’s $16,100 for single filers and married couples filing separately, $24,150 for heads of household and $32,200 for married couples filing jointly.
This is the filter most people never see coming. After the standard deduction roughly doubled in 2018, the share of returns that itemized dropped from 30.6% to 9.5% by 2022. If you take the standard deduction, deductible home equity interest saves you exactly nothing.
One quiet change helps some borrowers this year. Itemized state and local taxes, the so-called SALT deduction, are capped at $40,400 instead of the old $10,000, though the cap shrinks for households with modified adjusted gross income above $505,000 (it can’t fall below $10,000). For homeowners in high-tax states, that larger SALT figure pushes more people over the standard deduction, and once you’re itemizing, every dollar of qualifying home equity interest starts to count.
What Counts as a “Substantial Improvement”
This is where most real-life confusion lives. The IRS line is between making your home better and keeping it the way it is.
IRS Publication 936 describes a substantial improvement as one that adds to your home’s value, prolongs its useful life or adapts it to new uses. Repairs that simply keep the home in good condition, like repainting, aren’t substantial improvements on their own. When we worked through common projects against that wording, most fell cleanly on one side. A few depended on scope, and those are the ones worth documenting carefully.
| Project paid with home equity | Likely treatment | Why | What to keep |
|---|---|---|---|
| Kitchen or bathroom remodel | Qualifies | Adds value and modernizes | Contract, invoices, permit |
| Full roof replacement | Qualifies | Prolongs useful life | Roofer’s invoice, proof of payment |
| Room addition or ADU | Qualifies | Adds space and value | Plans, permits, draw schedule |
| New HVAC or water heater | Usually qualifies | Replaces a major system | Equipment invoice |
| Finishing a basement | Qualifies | Adapts space to new use | Contractor bills |
| Patching a roof leak | Doesn’t qualify alone | Maintenance repair | — |
| Repainting rooms | Usually not, unless part of a remodel | Maintenance by itself | Show it was part of a larger project |
| New furniture or appliances only | Generally no | Personal property, not the home | — |
Repainting a hallway by itself is maintenance. Repainting as part of a whole-house renovation is generally treated as part of the improvement. If a project mixes repairs and upgrades, ask your contractor to separate the line items, and keep the full contract showing the project’s overall scope. That’s the document that answers the question if the IRS ever asks.
The timing rule almost nobody knows about
You don’t have to borrow before you renovate. Publication 936 lets a loan count as improvement debt if you take it out within 90 days after the work is finished, covering qualifying costs you paid within the 24 months before completion. In plain terms: if you paid for a remodel out of savings and open a HELOC within three months of finishing, the interest on the amount that reimburses those costs can still qualify.
If you borrow before or during the project, the qualifying amount is limited to improvement costs you actually incur, counting expenses from up to 24 months before the loan date. Either way, the deductible portion can never exceed what you spent on the home.
How the $750,000 Limit Works With Your First Mortgage
The cap isn’t per loan. It’s one bucket shared by every qualifying loan on your main home and second home.
For debt taken on after December 15, 2017, you can deduct interest on up to $750,000 of combined home acquisition debt, or $375,000 if you’re married filing separately. Your first mortgage fills that bucket first in practice, and any qualifying home equity debt goes in on top. Loans from before December 16, 2017 keep the older $1 million limit, and refinancing that older debt generally keeps its status up to the balance you refinanced.
If your total goes over the cap, you don’t lose the whole deduction. You deduct a share of your interest equal to the cap divided by your average qualifying balance, using the worksheet in Publication 936. A couple with a $600,000 first mortgage and a $200,000 remodel HELOC, for example, has $800,000 of acquisition debt, so roughly 94% of their combined interest is deductible.
First, qualifying debt can’t exceed what you paid for the home plus the cost of substantial improvements. Borrowing $200,000 against a home and spending $120,000 on a remodel means only $120,000 of that loan is improvement debt. Second, only a main home and one second home count. A second home can be a house, condo, co-op, mobile home or even a boat or RV, as long as it has sleeping, cooking and toilet facilities.
Home Equity Interest Tax Savings Calculator
Enter your numbers to see how much qualifying interest you’d deduct and what it actually saves after the standard deduction.
Estimates only. Uses this year’s standard deduction and $40,400 SALT cap; your tax preparer’s figures are the final word.
We built the calculator to mirror how the deduction really works on a return. It estimates a year of home equity interest from your balance and rate, keeps only the share spent on improvements, and scales everything down if your combined home debt tops $750,000 ($375,000 for separate filers). Then it compares your itemized total, with and without the home equity interest, against your standard deduction. Your tax savings equal your bracket times the difference between those two results, never more.
Run the default household and you’ll see the gap that surprises most borrowers. Its $50,000 HELOC generates about $3,680 of fully qualifying interest. Multiply by 22% and you’d expect about $810 back. The real figure is about $436, because the couple’s other deductions sat just below the $32,200 standard deduction, so only the part of the HELOC interest above that line produces any savings. Drop the first-mortgage interest to $12,000 and the savings fall to zero.
The calculator leaves out a few things that can matter at the edges: the SALT phase-down above $505,000 of income, the new overall limit on itemized deductions for people in the 37% bracket, state income taxes, and the alternative minimum tax. If any of those apply to you, use the result as a starting point for a conversation with a tax professional.
What the Deduction Is Really Worth: Three Households
We ran three common profiles through the rules. The same $50,000 remodel HELOC produces very different results.
| Household | Other itemized deductions | Standard deduction | HELOC interest that qualifies | Tax actually saved |
|---|---|---|---|---|
| Couple, small first mortgage, low-tax state | $18,000 | $32,200 | $3,680 | $0 |
| Couple, our worked example | $30,500 | $32,200 | $3,680 | ~$436 (22%) |
| Couple, large mortgage, high-tax state | $52,000 | $32,200 | $3,680 | ~$883 (24%) |
| Any household, HELOC used to pay off cards | Any | Any | $0 | $0 |
The pattern we found is consistent. The deduction is worth the most to households already well above the standard deduction, typically people with a large first mortgage, high property and state income taxes, or big charitable giving. For them, qualifying home equity interest saves its full value times their bracket. For everyone else, the benefit ranges from partial to none.
That’s why we’d never pick a HELOC over a cheaper option because of the deduction. Even in the best case at a 24% bracket, a 7.36% HELOC costs about 5.6% after tax, and that’s only if every dollar of interest lands above the standard deduction.
Which Situation Sounds Like Yours?
Most questions about this deduction are really questions about one specific use of the money. Find yours below.
This is the textbook qualifying case. The interest on the amount spent on the project counts toward the $750,000 cap, and you deduct it on Schedule A line 8 if you itemize. Keep the contract and invoices with your tax records, since your Form 1098 shows the interest but says nothing about how you spent the loan.
The interest isn’t deductible, even though the loan is secured by your home. Consolidation can still be a smart move if it cuts your rate from above 20% to around 7% or 8%, but judge it on the rate and the risk to your home, not on taxes.
Split it. Only the interest on the improvement portion qualifies. If you drew $60,000 and spent $40,000 on a kitchen and $20,000 on a car, about two-thirds of the interest is a candidate for the deduction. Keeping improvement draws in a separate account, or making them in separate draws, makes the split easy to prove.
For a vacation home, interest on a HELOC secured by your main home doesn’t qualify, because the loan has to be secured by the home it buys. The IRS’s own example makes this point. A mortgage on the vacation home itself can qualify, within the shared $750,000 cap. For a rental property, the interest may be deductible as a rental expense instead, under the interest tracing rules described next.
Interest on loan money traced to a business or rental activity is generally deducted against that activity, on Schedule C or Schedule E, rather than as mortgage interest. Money used for investments may be deductible as investment interest, limited to your net investment income. Tracing requires clean records showing where every dollar went, so this is a case for a CPA or enrolled agent.
Not deductible as mortgage interest. A home equity loan also isn’t a qualified student loan, so its interest doesn’t count for the student loan interest deduction either. Federal student loans usually carry protections, such as income-driven repayment, that a home-secured loan never will.
The same use test applies. The part of the new loan that replaced your old mortgage keeps its acquisition-debt status. The extra cash qualifies only if it went into buying, building or substantially improving the home. Points on a cash-out refinance are generally deducted over the life of the loan, not all at once.
With little mortgage interest left, you’re likely taking the standard deduction, which is higher for filers 65 and older. A new remodel HELOC probably won’t change that, so plan on paying the full stated rate. The separate senior deduction added by the latest tax law is available whether you itemize or not, which makes itemizing even less likely to win.
Starting this tax year, people in the 37% bracket face a new overall limit that trims the value of itemized deductions so they’re worth closer to 35 cents on the dollar. Your qualifying interest is still deductible, but the savings are slightly smaller than a simple bracket calculation suggests. High earners in high-tax states should also check the SALT phase-down above $505,000 of income.
Good news this year: mortgage insurance premiums on acquisition debt are deductible again, treated like mortgage interest. The benefit shrinks by 10% for each $1,000 of AGI above $100,000 and disappears above $109,000 ($54,500 for married filing separately), and those thresholds aren’t adjusted for inflation.
How to Claim It and What to Keep
Your lender’s paperwork shows how much interest you paid. Proving it was deductible is on you.
Collect your Form 1098
Lenders send Form 1098 for each loan where you paid $600 or more in interest, usually by the end of January. It shows the interest, any points and, starting this tax year, mortgage insurance premiums again. Your HELOC lender sends its own 1098, separate from your first mortgage servicer.
Figure the qualifying share
If the whole loan went to improvements and your total home debt is under the cap, the full 1098 amount qualifies. If you used some for other things or you’re over the cap, use the worksheet in Publication 936 to compute the deductible amount. Tax software asks how the loan was used; answer carefully rather than accepting the default.
Enter it on Schedule A, line 8
Qualifying interest reported on a 1098 goes on line 8a, along with your first-mortgage interest. Compare your itemized total with your standard deduction and use whichever is larger. Nothing is lost by checking both every year.
Keep the proof with the return
Save the loan closing documents, every contractor contract and invoice, permits, receipts and bank or HELOC statements that show draws going to those payments. The IRS generally has three years to review a return, but improvement records also raise your home’s cost basis and can cut taxable gain when you sell, so keep them until at least three years after the year you sell the home.
Pay contractors straight from the HELOC or from a dedicated checking account that only receives HELOC draws. When we compared paper trails, the cleanest ones always had a single path from loan to project. Mixing loan money into your everyday account makes the tracing argument much harder to win.
Deducting the full 1098 amount when part of the loan paid off cards. Assuming HELOC interest qualifies because the loan is “for the house” when it bought a car. Itemizing when the standard deduction was larger. Forgetting the $750,000 cap when a new HELOC sits on top of a big first mortgage. Each one can mean back taxes, interest and possibly a penalty if the return is examined.
Free Tax Help and Where to Call
These options cost nothing or very little, and they can confirm whether your interest qualifies before you file.
| Who | Phone | Best for | Cost |
|---|---|---|---|
| IRS individual help line | 800-829-1040 | Questions about your account and forms | Free |
| VITA and Tax Counseling for the Elderly | 800-906-9887 | Free return preparation for qualifying filers | Free |
| Taxpayer Advocate Service | 877-777-4778 | Problems you can’t resolve with the IRS | Free |
| HUD housing counselor locator | 800-569-4287 | Deciding whether to borrow against your home | Free |
| CPA or enrolled agent | Local | Mixed-use loans, rentals, business tracing | Paid |
Bing map locator: tax help near you
Pick what you need, then open Bing Maps around your location. Your location is used only to build the map link.
Our Verdict
When the money went into buying, building or substantially improving the home that secures the loan, your total home debt is within $750,000, and your itemized deductions clearly beat the standard deduction. Keep invoices and loan statements that prove the use, and you can deduct it with confidence.
When you take the standard deduction, when the loan isn’t for the home, or when the expected savings are a few hundred dollars. Choose a home equity loan or HELOC on rate, fees and risk. Your house is the collateral, and that matters more than any tax break.
Questions people still ask
Are home equity loans tax deductible if I don’t itemize?
No. Mortgage interest, including qualifying home equity interest, is only deductible as an itemized deduction on Schedule A. If you take the standard deduction, it provides no separate benefit.
Is the deduction going back to the old rules where any home equity interest counted?
No. That older treatment, which allowed interest on up to $100,000 of home equity debt for any purpose, was scheduled to return after 2025, but the latest federal tax law made the post-2017 rules permanent.
Can I deduct HELOC interest on a second home?
Yes, if the HELOC is secured by that second home and used to buy, build or substantially improve it, within the shared $750,000 cap. Only one second home counts in a given year.
Are closing costs or points on a home equity loan deductible?
Points may be deductible over the loan’s life if the money is used for the home; points aren’t deductible if the proceeds weren’t used for it. Appraisal, title and other closing fees aren’t deductible as interest.
Does my lender’s Form 1098 tell the IRS the interest is deductible?
No. The form reports interest paid. It doesn’t show how you used the loan, so it’s your job to claim only the qualifying part.
Can I deduct HELOC interest used for a solar or energy upgrade?
Yes, if the installation substantially improves the home. Note that the federal residential clean energy and energy-efficiency credits ended after last year, so this year the interest deduction may be the only federal tax angle.
What if I paid for improvements in cash and then took a HELOC?
If the loan comes within 90 days after the work was finished, it can cover qualifying costs paid in the 24 months before completion, up to what you spent.
Is reverse mortgage interest deductible?
Generally only when it’s actually paid, which is usually when the loan is paid off, and it’s subject to the same use rules and limits as other home debt.
Do states follow the same rules?
Not always. Some states have their own rules for mortgage interest or don’t allow itemizing at all. Check your state’s instructions or ask a preparer.
Should I take a home equity loan just to get a deduction?
No. A deduction only returns a fraction of the interest you pay. Borrowing to save on taxes always leaves you poorer than not borrowing.
How this page was checked. Deduction rules, debt limits, the substantial improvement definition and the 24-month and 90-day timing rules come from IRS Publication 936. Standard deduction amounts are from the IRS inflation adjustments for this tax year. The permanent $750,000 cap, the restored mortgage insurance deduction and the new limit for the top bracket reflect the federal tax law signed in July of last year; the SALT cap figures reflect that law’s schedule. Itemizing shares come from IRS Statistics of Income data. Average home equity rates come from Bankrate’s late-October survey. Calculator results and illustrations are our own estimates.
This page is independent and not affiliated with any lender or tax preparer. It is general information, not tax, legal or financial advice. Tax outcomes depend on your full return.
Key sources: IRS Publication 936 · IRS · Congress · Bankrate