10 min read
If you are renting out a property in the UK, it is important to have a clear understanding about whether you need to inform HMRC about your rental income.
The good news is that if your property rental gross income over the financial year is under £1,000, then you don’t need to declare this income or pay any tax. But you must keep a record of this income.
Anything over £1,000 per annum is a different story.
At the moment, that’s the 2025/26 tax year, you will need to complete a Self Assessment form and pay any tax due. Please read on and we will take you step by step through the process.
From April 2026, if your rental income exceeds £50,000pa, you will need to follow the new Making Tax Digital for Income Tax(MTD) rules. This means you’ll report your rental income and expenses through accounting software, usually every three months. With the right tools, it’s simple and helps you stay on top of your tax.
If your gross income does not meet this threshold, then you will still be required to complete an annual Self Assessment; this guide explains Self Assessment for landlords and what you need to do.
What is Self Assessment?
Self Assessment is how you tell HMRC about your rental income and expenses so they can work out how much tax you owe. You need to report income from things like:
- Renting out residential properties
- Commercial properties
- Rooms in your home (like lodgers)
It is basically HMRC’s way of making sure you pay the right amount of tax on your rental profits.
Do you need to file?
Before you file your Self Assessment, you need to register with HMRC. Here is a few steps to follow:
- Go to the HMRC website and register as a landlord. Choose the option for Self Assessment registration and provide basic details about yourself and your property income.
- Wait for your Unique Taxpayer Reference (UTR). HMRC will send this 10-digit code by post. You’ll need it every time you file or contact HMRC.
- Create your HMRC online account. This lets you file your return digitally, view your tax history and make payments.
- Register before 5 October following the end of the tax year. Missing this deadline can cause fines, even if your income is small.
If your income falls under MTD, you’ll also need accounting software to submit updates every quarter, not just the annual return.
Key dates to keep in mind
Deadlines are important for filing your Self Assessment. So, note down these dates:
- 5 October – Register if you’re new to Self Assessment.
- 31 October – Paper tax returns must be submitted.
- 31 January – Online tax returns and payments are due.
- 31 July – Second payment on account (if applicable).
Do not miss these dates to avoid fines and interest. Ensure you pay it on time to stay organised.
What income do you include?
Make sure you report everything you’ve earned in rent from 6 April to 5 April the next tax year. This includes:
- Rent from tenants
- Income from letting rooms or holiday rentals
- Income payments for utilities you cover
- Insurance payouts linked to rental income
Basically, if money comes from your property, it needs to go on your return.
Expenses you can claim
The good news is that you don’t pay tax on all the rent you receive. You only pay tax on your profit after expenses. There are several costs you can deduct to reduce your taxable income. You can usually claim things like:
- Only the mortgage interest is claimable (not the full repayment).
- Basic repairs, like sorting out leaks or repainting, are fine — but not big renovations that push up the property’s value.
- Insurance costs – landlord, building, or contents cover all count
- Letting agent fees
- Council tax or utilities you pay for tenants
- Legal fees, like eviction or tenancy costs
- Office costs, such as stationery, phone, or internet for your rental work
Always keep your receipts and records handy, as HMRC may ask to see them. Good record-keeping not only keeps you safe but can also stop you from overpaying tax.
Repairs vs improvements
It’s important to know the difference:
- Repairs restore the property to its original state (fully deductible).
- Improvements increase the property’s value (not deductible, but may affect Capital Gains Tax when you sell).
This distinction can save you money if HMRC ever checks your claims.
How to calculate your taxable profit
Calculating taxable profit is very easy. Here is the process:
Your rental income – allowable expenses = taxable profit
Let’s say your rental income is £15,000 and your expenses are £5,000 — that leaves £10,000 profit. HMRC uses that figure to decide your tax.
UK tax rates for landlords
Landlords pay income tax on rental profits, not total rent. Here’s a quick guide:
- Basic rate (20%) – Income up to £50,270
- Higher rate (40%) – Income between £50,271 and £125,140
- Additional rate (45%) – Income above £125,140
Remember, mortgage interest relief has changed. You now get a tax credit at the basic rate instead of deducting all mortgage interest.
Avoid these common slip-ups
Filing errors happen more often than you’d think — and they can hit your wallet hard. Make sure you don’t get caught by:
- Forgetting to report all rental income
- Claiming expenses that aren’t allowed
- Confusing repairs with improvements
- Missing deadlines
- Not keeping receipts and records
Using accounting software or talking to an accountant can make life much easier.
Tips for a smooth Self Assessment
Some useful reminders:
- Keep track throughout the year – note down rent, costs, and receipts regularly.
- Use accounting software – Makes filing easier and reduces mistakes.
- Check your tax code – Ensure HMRC knows about all your income.
- Plan for payments on account – Set aside money so you’re not caught out.
- Ask for professional help – Especially useful if you have more than one property.
Conclusion
Filing your Self Assessment as a landlord doesn’t have to be stressful. Keep good records, understand what you can claim, and watch deadlines. This helps you pay only what you owe and can even save money.
From April 2026, landlords with annual income over £50,000 must also follow MTD and submit quarterly updates through software. Being prepared now makes filing easier and avoids last-minute stress.
An accountant who knows rental properties can save you time, stress, and money. Contact us to get expert help!
