What counts as a tax write-off if you rent or own your home
A tax write-off is an expense you subtract from your income before calculating what you owe in taxes. The IRS allows certain housing-related costs to reduce your taxable income, but the rules differ sharply between renters and homeowners, and between people who live in a property and those who rent it out.
If you rent your home to live in it, you cannot write off rent payments themselves. Homeowners who have a mortgage can write off the interest portion (not the principal), property taxes, and certain home improvements. If you rent out a property you own — whether a second home, apartment, or room — you can write off rent-related operating expenses, but the rules are more complex and require tracking every cost.
The key distinction is primary residence versus rental property. The IRS treats them completely differently for tax purposes. Understanding which category you fall into determines what you can and cannot deduct.
Key Takeaways
- Renters cannot write off rent payments, but homeowners can deduct mortgage interest and property taxes on their primary residence.
- If you own a rental property, you can deduct operating expenses like repairs, utilities, insurance, and property management fees, but you must track and document every expense.
- Home office deductions require that you use a dedicated space exclusively for work, and the calculation depends on whether you use the simplified method or actual expense method.
- Energy-efficient home improvements may may have access to for tax credits (not deductions), which directly reduce the tax you owe rather than reducing your income.
- Medical expenses related to home modifications for disability or age may be deductible if they exceed a threshold set by the IRS each year.
Mortgage interest and property taxes for homeowners
If you own your home and have a mortgage, you can deduct the interest you pay to the lender, but not the principal. In the early years of a mortgage, most of your payment goes to interest, so the deduction is larger. As years pass and you pay down principal, the interest portion shrinks and so does your deduction. You cannot deduct interest on a home equity line of credit (HELOC) or second mortgage unless the borrowed money was used to buy, build, or substantially improve the home.
You can also deduct property taxes you pay to your state and local government. However, the total deduction for state and local taxes (SALT) is capped at $10,000 per year, regardless of how much you actually pay. This cap includes property taxes, income taxes, and sales taxes combined. If you live in a high-tax state, you may hit this limit and lose the ability to deduct the excess.
To claim these deductions, you must itemize on your tax return rather than take the standard deduction. A tax professional can tell you whether itemizing saves you more money than the standard deduction in your situation.
Operating expenses if you rent out a property
If you own a property and rent it to tenants, you can deduct nearly all costs of operating and maintaining it. This includes mortgage interest (but not principal), property taxes, insurance, repairs, utilities, yard maintenance, pest control, cleaning, property management fees, and advertising to find tenants. You can also deduct depreciation — a calculation that spreads the cost of the building over many years and reduces your taxable income annually.
The critical rule is that the expense must be ordinary and necessary for running the rental. Replacing a broken window is deductible. Replacing the roof is deductible. Painting the exterior is deductible. But capital improvements — work that adds value to the property or extends its life significantly — are depreciated over time rather than deducted in full in the year you pay for them.
You must keep detailed records: receipts, invoices, bank statements, and a log of what was spent and when. The IRS can audit rental income and expenses years later, so documentation matters. Many landlords use accounting software or hire a tax professional to track these expenses throughout the year rather than scrambling to reconstruct them at tax time.
Home office deductions
If you work from home, you may be able to deduct a portion of your rent, mortgage interest, property taxes, utilities, and home maintenance costs. The space must be used regularly and exclusively for work — a bedroom that doubles as an office does not may have access to, but a dedicated room or corner used only for work does.
The IRS offers two methods. The simplified method lets you deduct $5 per square foot of home office space, up to 300 square feet (a maximum of $1,500 per year). You do not need receipts; you just measure the space and multiply. The actual expense method requires you to calculate the percentage of your home used for work, then deduct that same percentage of your actual housing costs and utilities. If your home office is 10 percent of your home's square footage, you deduct 10 percent of your mortgage interest, property taxes, utilities, and maintenance.
The simplified method is easier if your home office is small. The actual expense method can yield a larger deduction if your housing costs are high, but it requires more record-keeping and makes you more likely to be audited.
Energy-efficient improvements and tax credits
Certain home improvements that reduce energy use may may have access to for a tax credit rather than a deduction. A credit is more valuable than a deduction because it reduces your tax bill dollar-for-dollar, whereas a deduction only reduces your taxable income. Installing solar panels, a heat pump, an energy-efficient water heater, or new insulation may may have access to, depending on the year and the specific product.
The rules and dollar limits for these credits change frequently. Some credits are limited to a certain amount per year or per lifetime. Some apply only to primary residences, not rental properties or second homes. You will need to check the IRS website or speak with a tax professional to confirm whether a specific improvement qualifies in the year you install it and what the credit amount is.
Unlike deductions, you do not need to itemize to claim an energy credit. You can take the standard deduction and still claim the credit.
Medical and disability-related home modifications
If you install a ramp, grab bars, a walk-in shower, or other modifications to accommodate a disability or age-related mobility issue, the cost may be deductible as a medical expense. The modification must be medically necessary — recommended by a doctor or required for the person to live safely in the home — and must not add significant value to the property.
Medical expenses are deductible only if they exceed a threshold set by the IRS each year (currently 7.5 percent of your adjusted gross income). This means you must have substantial medical expenses across the year, not just the home modification, to benefit from the deduction. A single ramp installation rarely exceeds the threshold on its own.
If the modification does add value to the home — for example, a bathroom renovation that includes accessibility features — only the portion that does not increase value is deductible. A tax professional can help you calculate this split.
What renters cannot write off
Renters cannot deduct rent payments, even if rent is very high or the landlord is unresponsive. Rent is a personal living expense, not a business expense, so the IRS does not allow it as a deduction. You also cannot deduct utilities, internet, renter's insurance, or other costs of maintaining your rental home.
Some states and cities offer renter tax credits or rebates based on rent paid, but these are separate from federal tax deductions and vary by location. A few states have property tax relief programs for renters that work similarly to homeowner property tax deductions. Check your state tax authority's website to see if you live in one of these states.
Frequently Asked Questions
Can I deduct home improvements I made to my primary residence?
Not as a deduction in the year you make them. However, if you later sell the home at a profit, the cost of certain improvements can reduce your capital gains tax. Energy-efficient improvements may also may have access to for a tax credit in the year you install them. Repairs (fixing what is broken) are not deductible, but improvements that add value or extend the life of the home may reduce your taxable gain when you sell.
Do I need to itemize to claim a home office deduction?
No. The home office deduction is available whether you itemize or take the standard deduction. If you use the simplified method ($5 per square foot), you do not need receipts. If you use the actual expense method, you must track housing costs and utilities, but you can still take the standard deduction for other income.
What if I rent out one room in my home but live there too?
You can deduct expenses for the rented room and shared spaces proportionally. If one bedroom out of four is rented, you can deduct one-quarter of utilities, insurance, and maintenance, plus the full cost of repairs specific to that room. Mortgage interest and property taxes are not deductible for the rental portion because your primary residence interest and taxes are already limited by the SALT cap.
Can I deduct losses from a rental property?
Rental losses can offset other income, but the IRS limits this depending on your income level and whether you actively manage the property. If you earn more than a certain threshold (currently $150,000), you may not be able to deduct losses in full. A tax professional can explain how passive loss rules apply to your situation.
What records do I need to keep for home office or rental deductions?
Keep receipts, invoices, and bank statements for all expenses you claim. For a home office, photograph the space and document its square footage. For a rental property, keep a log of repairs and maintenance with dates and amounts. The IRS can request these records years after you file, so store them for at least three to seven years.