Is HELOC Interest Tax Deductible on Rental Property?

Yes, HELOC interest is tax deductible on a rental property when you use the borrowed money for the rental activity itself. The IRS follows the money, not the collateral: if you draw on a home equity line of credit secured by your primary residence and spend those funds to buy, improve, or operate a rental, the interest is a rental business expense you deduct on Schedule E. The $750,000 mortgage-debt ceiling that limits home mortgage interest on Schedule A does not apply here. What can limit the deduction is the passive activity loss rules, which cap how much rental loss you can use against your other income.

Why the Loan’s Collateral Doesn’t Decide the Deduction

Under Treasury Regulation 1.163-8T, interest on any debt is allocated based on how the loan proceeds are used, and the allocation “is not affected by the use of an interest in any property to secure the repayment of such debt.”¹ This is the tracing rule, and it drives everything else.

Draw $80,000 on a HELOC secured by your home and wire every dollar to purchase a rental duplex, and the interest traces to the rental activity. It goes on Schedule E. Use that same $80,000 to pay off credit cards, and the interest is personal and nondeductible, no matter how many rental properties you own. The spending decides the treatment.

Tracing also means you are not restricted to capital improvements. Buying a rental outright, funding a renovation, or covering operating expenses during a vacancy all count as rental expenditures. Interest on the portion used for the rental activity is deductible in each case.

Rental Interest Is Business Interest, Not Home Mortgage Interest

Under 26 U.S.C. § 163(h), personal interest is not deductible, but the statute carves out separate paths for interest “properly allocable to a trade or business” and for “qualified residence interest.”² HELOC interest traced to a rental property takes the business path, and that matters in three ways.

First, no debt cap. Qualified residence interest is limited to $750,000 of total mortgage debt, or $375,000 if married filing separately.³ Rental interest has no equivalent ceiling. An investor who borrows $900,000 to renovate a multi-unit building deducts the full amount against rental income.

Second, no purpose restriction on the securing home. Qualified residence interest only covers loans used to buy, build, or substantially improve the home securing them. Rental interest just has to be traceable to the rental activity.

Third, no itemizing required. Schedule A only helps if your itemized deductions beat the standard deduction. Schedule E interest reduces rental income directly, whether you itemize or not, and it lowers your adjusted gross income in the process. That can protect eligibility for other benefits that phase out at higher incomes.

Splitting a HELOC Between Personal and Rental Use

Most HELOCs get used for more than one thing, and the IRS expects you to split the interest by how much of the balance funded each purpose.

Take a $200,000 line where you draw $120,000 to renovate a rental and $80,000 to remodel your kitchen. Sixty percent of the interest is deductible on Schedule E as rental business interest. The other 40 percent is qualified residence interest, deductible on Schedule A only up to the $750,000 debt ceiling and only because the personal portion improved the home securing the loan.³ If the personal portion had instead paid off credit cards or bought a car, that 40 percent share would not be deductible at all.

The ratio is not fixed. As you draw and repay, it shifts. Track every draw separately with its date, amount, and specific use, and keep the receipts that back it up. That running record is what defends the deduction if the IRS asks.

When You Also Live in the Rental

If the property you rent is also a home you use personally, an extra allocation applies before you even reach tracing. You are treated as using a dwelling as a residence when your personal use exceeds the greater of 14 days or 10 percent of the days it is rented at fair market price.⁴ Cross that line, and you divide HELOC interest along with every other shared expense between rental use and personal use, commonly by rental days over total days used.⁵ Only the rental share hits Schedule E.

A separate rule catches short-term hosts. Rent the property for fewer than 15 days total during the year and you do not report the rental income at all, and you cannot deduct any rental expenses.⁴ The HELOC interest might still qualify as home mortgage interest on Schedule A if the funds improved the home, but there is no rental deduction to claim.

Passive Activity Rules Can Cap the Loss

Correctly traced and allocated interest can still run into a wall. Rental real estate is a passive activity by default under 26 U.S.C. § 469.⁶ Passive losses can only offset passive income. If your HELOC interest pushes the rental into a net loss, you generally cannot subtract that loss from wages, salary, or investment income unless an exception applies.

The $25,000 Active Participation Allowance

You can deduct up to $25,000 of passive rental losses against non-passive income if you actively participated in managing the property. Active participation is a low threshold: approving tenants, setting rental terms, and authorizing repairs qualify.⁷ You must also own at least 10 percent of the property, and limited partners do not qualify.

The allowance phases out above $100,000 of modified adjusted gross income, dropping by $1 for every $2 of income over that threshold, and it reaches zero at $150,000.⁷ Those figures are not indexed for inflation. For married taxpayers filing separately who lived apart all year, the allowance is $12,500 with a $50,000 phaseout start.

The Real Estate Professional Exception

If you qualify as a real estate professional, the passive activity rules do not apply to your rental activities, and losses (HELOC interest included) can offset any income without limit. Two tests must be met in the same year: more than half of your total personal services across all trades or businesses must be in real property businesses where you materially participate, and you must log more than 750 hours in those real property activities.⁷ Employee hours in real estate do not count unless you own more than 5 percent of the employer. Spouses must each qualify independently; you cannot pool hours on a joint return.

Suspended Losses Carry Forward

Passive losses that exceed your passive income and the $25,000 allowance are not gone. They suspend and carry forward, usable whenever future passive income absorbs them. When you sell the rental in a fully taxable transaction, all accumulated suspended losses are released and deductible in the year of sale.⁷

How to Report It on Your Return

Rental income and expenses, including the deductible HELOC interest, go on Schedule E (Form 1040), Part I. The interest amount lands on Line 12, “Mortgage interest paid to banks, etc.”⁸ The net rental income or loss then flows to your Form 1040.⁹

If the interest creates a net rental loss, you may need Form 8582, Passive Activity Loss Limitations, to figure how much of the loss you can use this year and how much suspends. You can skip Form 8582 only if all of these are true: rental real estate with active participation is your only passive activity, you have no prior-year suspended losses, your total rental loss is $25,000 or less, your MAGI is $100,000 or less, and you hold no limited partner interest.¹⁰

Your lender sends Form 1098 each year showing total interest paid on the HELOC. If you split the loan between personal and rental use, the form will not break out the allocation. That calculation is on you.¹¹

Records You Need to Keep

Tracing only protects you if you can prove where the money went. Without records that connect each draw to a specific rental expenditure, the IRS can disallow the full deduction. Keep:

A draw-by-draw ledger noting the date, amount, and rental expense funded by each HELOC advance, matched to the corresponding invoice, receipt, or closing statement.
Form 1098 for the annual interest total, along with your own allocation worksheet if the loan is mixed-use.
Bank statements, wire confirmations, cleared checks, and card statements showing the money moving from the HELOC draw to the vendor.
The original HELOC agreement showing terms, credit limit, and securing property.

The usual three-year retention window is not enough for rental records. The IRS says to keep records related to property until the statute of limitations expires for the year you dispose of it,¹² because those records feed depreciation, basis, and the gain or loss calculation when you sell. Practically, hold everything until at least three years after you sell and file for the year of sale.

HELOC Closing Costs

Points and origination fees paid to open a HELOC used for a rental generally cannot be deducted in full the year you pay them. They are amortized evenly over the life of the loan. The annual amortized amount goes on Form 4562, Part VI, and carries to Schedule E.¹³ This holds even if you paid the points upfront in cash at closing. Other closing costs like appraisal and recording fees on a rental-purpose loan are typically added to loan basis and amortized the same way.

Mixed-use loans split closing costs the same way they split interest. Only the rental share is amortized on Schedule E. The personal share follows the personal-interest rules, generally nondeductible unless the funds improved the home securing the HELOC.

1
GovInfo. 26 CFR 1.163-8T – Allocation of Interest Expense Among Expenditures
2
Office of the Law Revision Counsel. 26 USC 163 – Interest
3
Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction
4
Internal Revenue Service. Topic No. 415, Renting Residential and Vacation Property
5
Internal Revenue Service. Publication 527, Residential Rental Property
6
Office of the Law Revision Counsel. 26 U.S. Code 469 – Passive Activity Losses and Credits Limited
7
Internal Revenue Service. Publication 925 (2025), Passive Activity and At-Risk Rules
8
Internal Revenue Service. 2025 Schedule E (Form 1040)
9
Internal Revenue Service. Tips on Rental Real Estate Income, Deductions and Recordkeeping
10
IRS. Instructions for Form 8582 – Passive Activity Loss Limitations
11
Internal Revenue Service. Instructions for Form 1098 – Mortgage Interest Statement
12
Internal Revenue Service. How Long Should I Keep Records?
13
IRS. Form 4562 Depreciation and Amortization