Is RV Loan Interest Tax Deductible? Rules, Caps, and Itemizing

RV loan interest is tax deductible when the RV qualifies as a home under IRS rules, the loan is secured by the RV itself, and you itemize on Schedule A. The RV has to have three things built in: a place to sleep, a place to cook, and a toilet. Meet those tests and the interest is treated the same as interest on a mortgage for a house or condo, subject to the same debt caps.¹

The Three Features Your RV Must Have

The IRS treats a house, condo, mobile home, boat, house trailer, or similar property as a home as long as it has sleeping, cooking, and toilet facilities.¹ A Class A motorhome with a bed, stove, and bathroom clears the bar without much question. A pop-up camper with a bunk but no built-in kitchen or toilet doesn’t.

Where it gets uncertain is portable equipment. A camping stove you set on the counter, or a chemical toilet you carry in and out, sits in a gray area. Related IRS guidance uses the phrase “permanent provisions” for cooking and sanitation, so factory-installed or permanently mounted facilities are the safer position if you’re ever audited.

Once the RV passes the physical test, it can be your main home or your second home. Most owners already have a house, so the RV fills the second-home slot. You can only designate one second home at any given time. If you also own a vacation cabin or condo, only one of them gets the deduction, and you pick whichever produces the larger benefit.¹

The Loan Has to Be Secured by the RV

Physical qualification isn’t enough. The loan itself has to be secured debt, meaning the lending agreement pledges the RV as collateral and gives the lender the right to repossess it if you default.¹ Standard RV financing from a dealership or bank almost always qualifies.

What doesn’t qualify: an unsecured personal loan you happened to use to buy the RV. The interest on that isn’t deductible even if the RV itself checks every physical box. Same result if you put the RV on a credit card, or borrow from a retirement account. If the RV isn’t collateral, the interest isn’t mortgage interest.

How the Debt Caps Work

Deductible interest is limited to acquisition indebtedness, meaning debt used to buy, build, or substantially improve a qualified home. For loans taken out after December 15, 2017, the combined cap across your main home and second home is $750,000, or $375,000 if you’re married filing separately.¹ Older loans still outstanding get grandfathered at $1,000,000 ($500,000 if married filing separately).²

The cap covers your total mortgage debt, not the RV loan alone. Say you owe $600,000 on your primary home and take out a $200,000 RV loan. Your total is $800,000. Interest on the first $750,000 is deductible; interest attributable to the extra $50,000 is not. You prorate based on the ratio of qualifying debt to total debt.

The HELOC Trap

Some buyers pull cash out of their house through a home equity loan or HELOC to buy an RV. That interest is not deductible. Home equity debt is only deductible when the borrowed money is used to buy, build, or substantially improve the home securing the loan.¹ Money borrowed against your house and spent on an RV didn’t improve the house, so it fails the test.

For the interest to qualify under the second-home rules, the loan has to be secured by the RV itself. This catches people who assume any borrowing tied to their home is automatically deductible.

You Have to Itemize

The RV interest deduction only helps if you itemize on Schedule A, and itemizing only helps if your total itemized deductions beat the standard deduction. For tax year 2026, the standard deduction is $32,200 for married filing jointly and $16,100 for single or married filing separately.³

To get above those numbers you combine RV interest with your other Schedule A items: state and local taxes, charitable gifts, medical expenses above the AGI floor, and mortgage interest on your primary home. The SALT cap was raised to $40,000 starting in 2025 under the One Big Beautiful Bill Act, with a phasedown for taxpayers with modified AGI above $500,000. That larger SALT allowance pushes more households into itemizing territory.

Run it both ways before you count on the RV interest. If your itemized total falls short of the standard deduction even after adding it in, the standard deduction wins and the RV interest saves you nothing that year.

How to Claim It on Your Return

If your RV lender treats the loan as a mortgage, you’ll receive Form 1098 by January 31 showing the interest paid.¹ That figure goes on Schedule A, line 8a.

Many RV lenders don’t issue a 1098. They classify the loan as a consumer installment loan in their system, even though it’s secured by the RV. You can still claim the interest. Report it on Schedule A, line 8b, which is for deductible mortgage interest not reported on Form 1098.¹ You’ll enter the lender’s name, address, and taxpayer identification number on the dotted lines next to that entry. Your year-end loan statement should show the interest total and the outstanding balance.

Keep the loan agreement showing the RV is pledged as collateral. Without proof of secured debt, the deduction doesn’t survive an audit. Photos of the sleeping area, kitchen, and bathroom are cheap evidence that the RV meets the physical test. Hold onto the purchase contract and receipts for any substantial improvements.⁴

If You Rent the RV Out

Listing your RV on Outdoorsy, RVshare, or a similar platform changes the analysis. To keep the RV classified as your home, your personal use has to exceed the greater of 14 days or 10% of the days it’s rented at a fair price.⁵ Rent it 200 days and use it yourself for 25, and you’re fine (25 beats 20, which is 10% of 200).

Miss the threshold and the RV stops being a “home” for tax purposes. You lose the Schedule A mortgage interest deduction, but interest and other expenses become deductible against rental income on Schedule E, subject to passive activity rules. Days you spend primarily on maintenance and repairs don’t count as personal use, which matters if you spend weekends cleaning between renters. A day when a family member stays, or anyone pays below fair market rent, does count as personal use.⁶

1
Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction
2
Office of the Law Revision Counsel. 26 USC 163 – Interest
3
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
4
Internal Revenue Service. Publication 530 (2025), Tax Information for Homeowners
5
Internal Revenue Service. Publication 527 (2025), Residential Rental Property (Including Rental of Vacation Homes)
6
Internal Revenue Service. Topic No. 415, Renting Residential and Vacation Property