Whether you rent out a single room or a portfolio of properties, understanding how HMRC taxes your rental income is essential. Get it wrong and you could end up paying more tax than you need to, or face penalties for not reporting correctly. This guide covers everything you need to know.
What Counts as Property Income?
Property income is not just the rent your tenants pay. It includes all of the following:
- Rent received from tenants for residential or commercial property
- Payments from tenants for services you provide, such as cleaning of communal areas
- Income from letting storage space, parking spaces, or garages
- Income from letting a caravan or houseboat at a fixed location
- Income from granting sporting rights over your land
- Rent charges and ground rents
- Local authority grants towards the cost of repairs
- Payments received from film crews who pay to film on your land or in your property
Do I Pay Tax on All My Rental Income?
No. You pay tax on your rental profit, not your gross rental income. Your profit is your total rental income minus any allowable expenses. How much tax you pay on top of that depends on your total income from all sources in the tax year and which tax band you fall into.
If you own more than one property, HMRC treats them all as a single property business. You add up the profits and losses from all your UK properties to arrive at one overall figure. Profits and losses from overseas properties must be kept separate from your UK properties.
What Is the £1,000 Property Income Allowance?
Every individual in the UK has a £1,000 property income allowance. Here is how it works:
- If your gross rental income is £1,000 or less in a tax year: you do not need to pay any tax on it and you do not need to report it to HMRC.
- If your gross rental income is over £1,000: you have a choice. You can either deduct the £1,000 allowance from your gross income instead of claiming actual expenses, or you can claim your actual allowable expenses in the normal way. You should choose whichever method results in a lower tax bill.
What Expenses Can I Claim Against My Rental Income?
Any expense must pass the wholly and exclusively test. This means the cost must have been incurred wholly and exclusively for the purpose of your rental property business. The main categories of allowable expenses are:
- Letting agent fees and management fees
- Repairs and maintenance, but not improvements
- Buildings and contents insurance
- Ground rent and service charges
- Council tax and utility bills you pay during void periods
- Legal and professional fees directly related to the letting
- Replacement of domestic items in furnished properties
- Accountancy fees for preparing your rental accounts
What Is Section 24 and How Does It Affect My Mortgage Interest?
This is one of the most significant tax changes for landlords in recent years and it catches many people out. Individual residential landlords can no longer deduct their mortgage interest as a direct expense from their rental income. Instead, you receive a tax credit worth 20% of your finance costs.
In practical terms this means:
- Your taxable rental profit is calculated without deducting mortgage interest
- You then receive a tax credit of 20% of your total finance costs to reduce your tax bill
- If you are a basic rate taxpayer, the effect is broadly the same as before
- If you are a higher or additional rate taxpayer, you will pay significantly more tax than before Section 24 was introduced
What Is Rent a Room Relief and Do I Qualify?
If you rent out a furnished room in your own home, you may be able to receive up to £7,500 per year tax free under the Rent a Room scheme. If you share the income with a joint owner, the threshold is £3,750 each. This relief applies automatically if your income is below the threshold. If your income is above it, you choose between taking the relief or claiming your actual expenses, whichever gives the lower tax bill.
Do I Need to Register With HMRC as a Landlord?
Yes, if your rental income is above the £1,000 allowance. You must register for Self Assessment with HMRC by 5th October following the end of the tax year in which you first received rental income. For example, if you started renting out a property in June 2025, you must register by 5th October 2026.
You report your property income on the SA105 UK Property supplementary pages alongside your main Self Assessment tax return. The deadline for filing online is 31st January following the end of the tax year, and any tax owed must also be paid by 31st January.
Does Making Tax Digital Apply to Landlords?
Yes, if your gross property income is above the relevant threshold. Making Tax Digital for Income Tax means you will no longer file one annual tax return. Instead you keep digital records and submit quarterly updates to HMRC through compatible software four times a year.
| Start Date | Who Must Join |
|---|---|
| 6th April 2026 | Gross qualifying income over £50,000 |
| 6th April 2027 | Gross qualifying income over £30,000 |
| 6th April 2028 | Gross qualifying income over £20,000 |
Your qualifying income for MTD is your gross rental income before expenses, combined with any self-employment income. It is not your profit. If your combined gross income from property and self-employment exceeds the threshold, you are in scope regardless of how much you actually make after expenses.
How Long Do I Need to Keep My Records?
You must keep all records relating to your rental income and expenses for at least five years after the 31st January filing deadline for the relevant tax year. Records for 2025 to 2026, for example, must be kept until 31st January 2032. Your records should include bank statements showing rent received, invoices and receipts for all expenses, mortgage statements showing interest paid each year, and records of any void periods.
