If you are renting out a spare room, the tax on renting a spare room is one of the first things you need to understand. The good news is that the rules in the US, UK, and Canada are more provider-friendly than most people expect. In many cases, you can earn a meaningful amount of rental income before you owe a single dollar, or pound, or dollar, in tax. The key is knowing your jurisdiction’s rules, keeping clean records, and understanding what you can deduct. This guide breaks it all down so you can rent with confidence.
For a broader introduction to listing your room, visit our complete guide on how to rent out a spare room.
Tax Rules in the United States
In the US, rental income from a spare room is generally taxable and must be reported on your federal tax return. The IRS treats it as ordinary income, which means it is taxed at your marginal income tax rate. However, several rules reduce your actual tax burden significantly.
The 14-Day Rule (Vacation Home Exception)
If you rent your room for 14 days or fewer in a tax year, the income is completely tax-free, you do not even need to report it. This rule (IRS Publication 527) is designed for occasional rentals, so it is unlikely to apply if you are renting on an ongoing basis. But if you are just testing the waters, it is worth knowing.
Reporting Rental Income
For ongoing room rentals, you report income on Schedule E of your Form 1040. You include the gross rent received during the year. If you also use the room personally at times, you will need to prorate expenses between personal and rental use based on the percentage of days it was rented.
Deductible Expenses in the US
The IRS allows you to deduct expenses directly related to the rental. These reduce your taxable rental income, sometimes substantially. Common deductible expenses include:
- A proportional share of mortgage interest (based on the square footage of the rented room versus the whole home)
- A proportional share of property taxes
- A proportional share of home insurance premiums
- Utilities, if included in the rent
- Repairs and maintenance specific to the rental room
- Depreciation on the portion of the home used for rental
- Advertising or platform listing fees
- Professional fees (accountant, attorney) related to the rental
Depreciation can be particularly valuable. You depreciate the cost basis of the rental portion of your home over 27.5 years. Consult a tax professional to calculate this correctly, as it also affects your tax position when you eventually sell the home.
State and Local Taxes
Most US states that have an income tax require you to report rental income at the state level as well. Rules vary by state. Some municipalities also impose local taxes on short-term rentals (30 days or fewer). If you are renting a room in New York City, San Francisco, or another city with specific short-term rental regulations, check your local rules before listing.
Tax Rules in the United Kingdom
The UK has one of the most generous tax schemes for room providers in the world: the Rent a Room Scheme.
The Rent a Room Scheme
Under the Rent a Room Scheme, you can earn up to £7,500 per year in gross rental income from letting a furnished room in your main home, completely tax-free. If two people jointly own the property, each person gets a £3,750 allowance. You do not need to do anything special to claim this relief; it applies automatically if your income is at or below the threshold.
This threshold applies to furnished rooms only. It does not apply if you rent out a self-contained annexe with its own entrance, kitchen, and bathroom, HMRC treats those as a separate dwelling.
What Happens If You Earn More Than £7,500
If your rental income exceeds £7,500, you have two options:
- Option 1, Elect out of the scheme: Pay tax on your actual profit (gross rental income minus allowable expenses). This is beneficial if your deductible expenses are high relative to your income.
- Option 2, Stay in the scheme: Pay tax on the amount above £7,500 with no expense deductions. This is simpler and often better if your expenses are low.
You make this choice each year by completing a Self Assessment tax return. You must register for Self Assessment with HMRC if your rental income exceeds the threshold.
Deductible Expenses Outside the Scheme
If you opt out of the Rent a Room Scheme, you can deduct a proportional share of mortgage interest (subject to restrictions introduced post-2017 for buy-to-let landlords), council tax, utility bills, insurance, repairs, and platform fees. Deductions must be genuinely and exclusively for the rental activity.
National Insurance Considerations
If your rental activity becomes substantial enough to be considered a business (generally, if you provide services beyond simply letting a room, such as cleaning or meals), HMRC may treat it as a trade, which brings National Insurance obligations. Most standard room rentals do not cross this threshold.
Tax Rules in Canada
In Canada, rental income from a spare room is taxable and must be reported on your T1 personal income tax return using Form T776 (Statement of Real Estate Rentals). Canada does not have a blanket tax-free threshold equivalent to the UK’s Rent a Room Scheme.
Reporting Rental Income
You report gross rent received and then deduct eligible expenses to arrive at net rental income. If your expenses exceed your income in a year (a rental loss), you may be able to apply that loss against other income, subject to the "reasonable expectation of profit" test.
Deductible Expenses in Canada
The CRA allows a proportional share of these expenses based on the square footage of the rented room relative to the whole home:
- Mortgage interest (not principal repayment)
- Property taxes
- Home insurance
- Heat, electricity, and water (if not charged separately to the tenant)
- Internet, if provided as part of the rental
- Repairs and maintenance
- Advertising and listing platform fees
- Capital cost allowance (depreciation), use with caution, as it recaptures on sale
Provincial Considerations
Each province taxes rental income at the provincial level in addition to the federal rate. Quebec, Ontario, British Columbia, and Alberta all have different provincial rates. Quebec also has its own tax return (TP-1-V). If you are renting in Toronto, Vancouver, or Montreal, confirm both federal and provincial requirements.
GST/HST on Residential Rentals
Long-term residential room rentals (one month or longer) are generally exempt from GST/HST. Short-term rentals (fewer than 30 days) may be subject to GST/HST if your total short-term rental revenues exceed $30,000 in a 12-month period. If you cross that threshold, you must register for a GST/HST account and charge tax on short-term rental revenue.
Record-Keeping: The Habits That Save You
Good records are the foundation of a stress-free tax season. The following practices apply regardless of your jurisdiction:
- Keep a rental log: Record every rental period, start date, end date, rent received, and any deductions made. A simple spreadsheet works fine.
- Save all receipts: Store receipts for repairs, utilities, cleaning supplies, and any other rental-related expenses. Digital copies in a dedicated folder are sufficient in most jurisdictions.
- Separate your finances: If possible, have rent paid directly to a dedicated bank account or payment method so rental income is easy to identify at year-end.
- Document the room: Keep photos of the room’s condition at the start and end of each tenancy. These protect you in disputes and support any repair deductions.
- Retain records for the required period: In the US, the IRS recommends keeping tax records for at least 3 years (longer if you claim depreciation). In the UK, HMRC requires records for at least 5 years after the filing deadline. In Canada, the CRA requires 6 years.
When to Consult a Tax Professional
Most room providers can handle their own tax reporting once they understand the basics. But there are situations where professional advice pays for itself:
- You own the property jointly with a spouse or partner and want to optimize how income is allocated between you
- You are renting multiple rooms or properties and your rental activity approaches business scale
- You are planning to sell your home and want to understand how rental use affects capital gains treatment
- Your rental income exceeds the UK Rent a Room threshold and you are deciding whether to opt in or out
- You are renting in a jurisdiction with specific short-term rental licensing or hotel tax requirements
- You are an international provider renting property in a country other than your tax residency
A qualified accountant or CPA with rental property experience will typically more than recoup their fee in tax savings, especially in your first year of renting.
Frequently Asked Questions
Do I need to declare rental income from a spare room?
Yes, in the US and Canada you must report all rental income regardless of amount. In the UK, income below the £7,500 Rent a Room threshold does not need to be declared, but income above it must be reported through Self Assessment.
Can I deduct my mortgage from rental income?
In the US and Canada, you can deduct a proportional share of mortgage interest (not the principal) as a rental expense. In the UK, mortgage interest deductions for residential properties have been replaced with a 20% tax credit (since April 2020), this affects rooms in buy-to-let properties differently than your main home under the Rent a Room Scheme.
What is the tax-free allowance for renting a room in the UK?
The UK Rent a Room Scheme allows you to earn up to £7,500 per year in rental income from a furnished room in your main home, completely tax-free. This threshold is set by HMRC and should be verified annually at gov.uk.
Does renting a spare room affect my home insurance?
It often does. Standard home insurance policies may not cover rental activity. Notify your insurer before you start renting, and consider landlord insurance or a specific home-sharing endorsement. This also applies to your homeowner’s association (HOA) rules in the US, which may restrict or prohibit room rentals.
Start Listing with Confidence
Understanding the tax picture before you list is one of the smartest things you can do as a first-time provider. Once you know your obligations, the financial case for renting a spare room is often stronger than you expected. When you are ready to list, BookingQuad makes the process simple, verified tenants, direct messaging, and real-time listing analytics so you always know where you stand. List your spare room on BookingQuad today and start earning rental income on your terms. Tax is one leg of the hosting stool; the other two are covered in our guides to the legal requirements for renting a room and pricing your spare room, and hosts in Toronto and Vancouver should pay particular attention to local registration rules.
Disclaimer: This article is for informational purposes only and does not constitute tax or legal advice. Tax rules change frequently. Always verify current thresholds and regulations with HMRC (UK), the IRS (US), or the CRA (Canada), and consult a qualified tax professional for advice specific to your situation.
