6. Protect Your Tenant’s Deposit
If you take a tenancy deposit, you must follow the rules applying to the tenancy and location.
In England, deposits taken for assured periodic tenancies, which replaced assured shorthold tenancies on 1 May 2026, must be protected in a government-approved tenancy deposit scheme within 30 days of receipt. The tenant must also receive the required prescribed information.
For most English private tenancies, the deposit cap is:
- Five weeks’ rent where annual rent is below £50,000.
- Six weeks’ rent where annual rent is £50,000 or more.
Failing to protect a deposit correctly can result in a court ordering repayment and compensation of between one and three times the deposit amount.
See tenancy deposit protection rules.
7. Carry Out the Necessary Tenant Checks
Choosing a suitable tenant is an important part of managing a rental property.
Depending on the circumstances, checks may include identity verification, employment and income references, previous landlord references and an assessment of affordability.
In England, landlords must also carry out the appropriate Right to Rent checks before allowing an adult to occupy a property as their only or main home under a residential tenancy agreement.
These checks must be conducted consistently and without discrimination. Under the Renters’ Rights Act you also cannot refuse to let to someone simply because they have children or receive benefits, so affordability assessments should focus on the individual circumstances rather than blanket policies.
Read the official Right to Rent guidance.
8. Register With HMRC and Understand Your Rental Income Tax
One of the most important parts of becoming a landlord is understanding how your rental income will be taxed.
Rental income is generally taxable, but the amount of tax you pay depends on your rental profits, other income and the ownership structure of the property.
Do Landlords Need to Register for Self Assessment?
Not every landlord automatically needs to submit a Self Assessment tax return, but many do.
HMRC generally requires landlords to contact it if gross rental income exceeds £1,000 in a tax year. Where gross property income exceeds £10,000, or taxable rental profit after allowable expenses exceeds £2,500, a Self Assessment return is normally required.
If your rental income falls below these thresholds, you may still need to declare it, depending on your circumstances.
The deadline for notifying HMRC of chargeability is normally 5 October following the end of the relevant tax year.
For example, if you first receive taxable rental income during the 2026/27 tax year and need to notify HMRC, the usual deadline is 5 October 2027.
If you received rental income in 2025/26 and have not yet told HMRC, the 5 October 2026 deadline has just passed. Register as soon as possible. HMRC will give you a later date to file the return, but any tax you owe is still due by 31 January 2027.
Find out more through HMRC’s guidance on paying tax on rental income.
How Is Rental Profit Calculated?
For tax purposes, rental profit is generally calculated by taking your rental income and deducting allowable expenses.
For example:
- Annual rental income: £14,400.
- Allowable running expenses: £3,200.
- Taxable property profit before other adjustments: £11,200.
The £11,200 would generally be added to your other taxable income and taxed at the applicable Income Tax rates.
However, individual residential landlords cannot usually deduct mortgage interest directly when calculating their rental profits. Instead, qualifying residential property finance costs generally receive a basic-rate Income Tax reduction, subject to restrictions.
This distinction is particularly important for landlords with mortgages, as the tax calculation can be quite different from the cash profit actually received.
9. Know Which Landlord Expenses You Can Claim
Keeping track of allowable expenses can make a significant difference to your rental tax bill.
Many everyday costs associated with running and maintaining a rental property can be deducted from rental income, provided they satisfy HMRC’s requirements.
Common Allowable Landlord Expenses
- Letting agent and property management fees.
- Landlord insurance premiums.
- Routine repairs and maintenance.
- Accountancy fees relating to the rental business.
- Ground rent and service charges, where allowable.
- Utilities and Council Tax paid by the landlord for the rental business.
- Advertising costs when finding tenants.
- Relevant legal and professional fees.
- Qualifying replacement domestic items, subject to HMRC’s conditions.
Repairs Versus Improvements
One area that regularly causes confusion is the difference between repairing a property and improving it.
Replacing a broken window with a similar modern equivalent will normally be treated as a repair. Adding a substantial extension, on the other hand, is generally capital expenditure rather than a deductible day-to-day expense.
Capital expenditure may be relevant when calculating Capital Gains Tax if the property is eventually sold, but not all capital costs qualify.
HMRC provides more information in its Property Income Manual.
What About the £1,000 Property Allowance?
Individuals may qualify for a £1,000 annual property income allowance.
If your gross qualifying property income is £1,000 or less, it may be covered by the allowance without tax being payable on that income.
Where income exceeds £1,000, eligible landlords can sometimes choose to deduct the £1,000 allowance instead of claiming actual expenses.
You cannot claim both the allowance and actual expenses against the same income.
For landlords with significant maintenance, insurance or management costs, claiming actual expenses may be more beneficial.
10. Understand Mortgage Interest Tax Relief and the April 2027 Rate Changes
Mortgage interest is one of the biggest expenses for many buy-to-let landlords, but its tax treatment is not always straightforward.
Individual landlords letting residential property generally receive relief for qualifying finance costs through a basic-rate tax reduction (currently 20%) rather than a direct deduction from rental income.
This means a higher-rate taxpayer may pay more tax than expected, even when their actual rental cash flow is relatively modest.
For example, suppose your property generates £15,000 in annual rent, with £3,000 in allowable running costs and £6,000 in mortgage interest.
Your cash surplus before tax and capital repayments would be £6,000, but your property profit for Income Tax purposes would generally be £12,000 before applying the finance cost tax reduction.
For a higher-rate taxpayer in England, that works out at roughly £4,800 of tax at 40%, less a £1,200 finance cost reduction (20% of £6,000), leaving around £3,600 to pay on a cash surplus of £6,000. This is a simplified illustration that assumes all of the profit is taxed at the higher rate and that the finance cost relief is not restricted.
New Property Income Tax Rates From April 2027
From 6 April 2027, unincorporated landlords in England, Wales and Northern Ireland will pay Income Tax on their rental profits at new, separate property rates:
- Property basic rate: 22%.
- Property higher rate: 42%.
- Property additional rate: 47%.
That is 2 percentage points higher than the current rates. Relief for finance costs will also rise, to 22%, so the effect on heavily mortgaged landlords is smaller than on those with little or no borrowing.
There is a further change to be aware of. From April 2027, your personal allowance will be set against employment, trading and pension income first, so more of your rental income may be taxed at the property rates.
These rates do not apply to properties owned through a limited company, which pay Corporation Tax instead. Tax treatment can also differ for certain non-residential properties. Holiday lets are now taxed under the ordinary property income rules, because the furnished holiday lettings regime was abolished in April 2025.
11. Decide Whether to Own Property Personally or Through a Limited Company
Some new landlords consider purchasing buy-to-let properties through a limited company rather than owning them personally.
There are potential advantages and disadvantages to both approaches.
Personal Ownership
Owning a rental property personally is often simpler administratively. Rental profits are generally subject to Income Tax, and individual residential landlords are affected by the finance cost restriction and, from April 2027, the new property income rates.
Limited Company Ownership
A limited company generally pays Corporation Tax on its taxable rental profits, and qualifying mortgage interest is normally deductible under the applicable corporation tax rules.
However, extracting profits from the company can create additional personal tax liabilities. Dividend tax rates for basic and higher-rate taxpayers rose by 2 percentage points from April 2026, to 10.75% and 35.75%. Companies also have ongoing filing and reporting responsibilities, including annual accounts and Corporation Tax returns.
Buying or transferring a property into a company can also trigger Stamp Duty Land Tax (including the higher rates for additional dwellings) or the relevant devolved property transaction tax, and potentially Capital Gains Tax.
Our advice: Do not assume that setting up a limited company automatically means paying less tax. The best ownership structure depends on your income, borrowing, future plans and whether you intend to reinvest or withdraw the profits.
If you are considering company ownership, you can find more information about company responsibilities through GOV.UK’s guide to running a limited company.
12. Prepare for Making Tax Digital for Income Tax
Making Tax Digital for Income Tax is an important development for landlords who earn income from property, self-employment or both.
The first phase began on 6 April 2026 for individuals whose combined gross income from self-employment and property exceeded £50,000 in the 2024/25 tax year. It is being phased in, with the qualifying income threshold falling each year:
- £50,000 (based on your 2024/25 return): MTD applies from 6 April 2026.
- £30,000 (based on your 2025/26 return): MTD applies from 6 April 2027.
- £20,000 (based on your 2026/27 return): MTD applies from 6 April 2028.
Landlords brought into the system generally need to:
- Keep digital records of relevant income and expenses.
- Use compatible software.
- Submit quarterly updates to HMRC (typically by 7 August, 7 November, 7 February and 7 May).
- Complete the required year-end tax reporting, including a final declaration by 31 January following the tax year.
Importantly, the qualifying income threshold is based on gross income, not rental profit.
If you have both rental income and self-employment income, the relevant amounts are combined when assessing whether you fall within the requirements.
For example, a landlord earning £24,000 in gross rental income and £32,000 from self-employment has £56,000 of qualifying income and could exceed the £50,000 threshold even though neither income source individually reaches that figure.
HMRC reviews your Self Assessment return each year and should write to you if you are affected, but it is your responsibility to check whether the rules apply and to sign up. You still need to file a Self Assessment return for the tax year before you start using MTD.
If you only start letting during 2026/27, HMRC will use your 2026/27 figures to test the £20,000 threshold, so you could be brought into MTD from April 2028 even if you are not affected sooner. Partnerships will follow at a later date.
Read the official Making Tax Digital eligibility guidance.
13. Keep Accurate Rental Property Records
Good bookkeeping makes managing rental property considerably easier, especially when it comes to preparing your tax return.
It also helps you understand whether your property is genuinely profitable.
At a minimum, landlords should maintain records of:
- Rent received, including dates and amounts.
- Letting agent statements and fees.
- Mortgage interest and other finance costs.
- Repairs, maintenance and property improvements.
- Insurance, service charges and relevant bills.
- Tenancy agreements and deposit records.
- Property purchase costs and supporting documents.
- Relevant correspondence with HMRC.
Individual landlords completing Self Assessment must generally retain records for at least five years after the 31 January submission deadline for the relevant tax year. If you are within Making Tax Digital, your income and expense records must be kept digitally.
Separate record retention requirements can apply to companies and other circumstances.
It is worth keeping capital expenditure and acquisition records for longer, potentially until after the property has been sold and the relevant tax position has been finalised.
Individual landlords are not generally required to have a dedicated business bank account solely because they receive rental income.
However, using a separate account for rental transactions is a sensible approach.
It makes it easier to track income and expenditure, reconcile transactions and identify how much money should be set aside for tax.
For properties owned by a limited company, keeping company and personal finances separate is particularly important.
14. Understand the Tax Implications of Selling Your Rental Property
Although selling might seem a long way off when purchasing your first buy-to-let property, it is worth understanding the potential tax implications from the beginning.
If you sell a personally owned rental property for more than its allowable acquisition cost and associated deductions, you may have a Capital Gains Tax liability.
For the 2026/27 tax year, the annual exempt amount for individuals is £3,000, with residential property gains generally taxed at 18% or 24%, depending on your circumstances.
UK residents who dispose of UK residential property and have Capital Gains Tax to pay generally need to report and pay it within 60 days of completion.
Different rules apply to properties held through limited companies.
See GOV.UK’s guidance on Capital Gains Tax when selling property.
15. Know the Important Landlord Tax Deadlines
Missing a tax deadline can result in penalties and interest, so it is worth adding the relevant dates to your calendar.
- 5 April: End of the UK tax year.
- 5 October: Normal deadline for notifying HMRC of chargeability for the previous tax year.
- 31 October: Deadline for paper Self Assessment tax returns for the previous tax year.
- 31 January: Deadline for online Self Assessment returns and payment of the balancing tax liability, together with any first payment on account.
- 31 July: Deadline for the second payment on account, where applicable.
- Quarterly (Making Tax Digital): typically 7 August, 7 November, 7 February and 7 May for landlords within the scheme.
For example, the online Self Assessment deadline for the 2025/26 tax year is 31 January 2027.
Landlords within Making Tax Digital have additional reporting requirements, while limited companies follow their own Corporation Tax and Companies House deadlines.
Late Self Assessment returns can attract an initial £100 penalty, with additional penalties potentially applying as delays continue. Late payments can also result in interest and further charges.
Check the official Self Assessment deadlines.
16. Your New Landlord Checklist Before the First Tenant Moves In
There is quite a lot to organise when becoming a landlord, so it helps to have a straightforward checklist to work through.
Property and Legal Requirements
- Confirm that your mortgage lender permits the property to be rented out.
- Arrange suitable landlord insurance.
- Check whether you need a landlord licence or registration, including the new national landlord register in England.
- Obtain a valid EPC and check minimum energy efficiency requirements, including the planned EPC C standard for 2030.
- Arrange gas and electrical safety checks where required.
- Install and test the required smoke and carbon monoxide alarms.
- Check the property meets applicable housing and fire safety standards.
- Complete Right to Rent checks where required in England.
- Prepare an assured periodic tenancy agreement that complies with current legislation, with no fixed term.
- Check that your advertising and letting process follows the rental bidding and rent-in-advance rules.
- Arrange protection of any tenancy deposit within the applicable deadline.
- Prepare an inventory and photographic record of the property’s condition.
Tax and Financial Requirements
- Check whether you need to register for Self Assessment.
- Understand how your rental profits will be taxed, including the new property income rates from April 2027.
- Identify allowable expenses and keep supporting receipts.
- Check the tax treatment of mortgage interest.
- Set up a reliable bookkeeping system.
- Consider using a separate bank account for rental income and expenses.
- Check whether Making Tax Digital for Income Tax applies to you.
- Calculate how much to set aside for future tax bills.
- Keep records of your property’s purchase price and acquisition costs.
- Consider speaking to an accountant before purchasing further properties.
Completing these steps before your first tenant moves in will put you in a much stronger position, both financially and legally.
17. Common Financial Mistakes New Landlords Should Avoid
Many first-time landlords focus on how much rent a property could generate without looking closely enough at the ongoing costs.
Here are a few mistakes worth avoiding.
Assuming Rental Income Is the Same as Profit
If your property generates £1,200 a month in rent, that does not mean you are making £1,200 a month.
Mortgage payments, insurance, repairs, management fees, periods without tenants and tax can all reduce the amount you actually keep.
Forgetting About Empty Periods
Even a desirable rental property may sit empty between tenants.
Under the Renters’ Rights Act, fixed terms are no longer possible and tenants can leave on two months’ notice, so it can be harder to predict when a void will occur.
Building a contingency fund can help cover mortgage payments and other ongoing costs during these periods.
Failing to Budget for Maintenance
Boilers break down, roofs need repairs and appliances eventually need replacing.
Putting aside some rental income each month for maintenance can help avoid unexpected pressure on your finances.
Mixing Personal and Rental Expenses
Paying property expenses from several different accounts makes bookkeeping unnecessarily complicated.
It can also make it harder to identify allowable expenses and prepare accurate tax returns.
Not Planning for Tax
Perhaps the biggest mistake is treating every rent payment as money available to spend.
Depending on your circumstances, a substantial portion of your rental profit may eventually be payable to HMRC, and the rates are set to rise from April 2027.
Setting money aside throughout the year is usually much easier than finding the full amount when your Self Assessment payment becomes due.
How Accounting Wise Can Help New Landlords
Becoming a landlord involves enough work without having to worry about getting your tax return wrong or missing an important HMRC deadline.
At Accounting Wise, we help UK landlords understand their tax obligations, manage their rental finances and stay on top of their reporting requirements.
Whether you have one buy-to-let property or are building a larger portfolio, we can help with:
- Self Assessment tax returns and rental income reporting.
- Identifying allowable landlord expenses.
- Understanding mortgage interest tax relief and the April 2027 property income rates.
- Making Tax Digital preparation and ongoing compliance.
- Rental property bookkeeping and financial records.
- Tax planning for personally owned and company-owned properties.
- Understanding the tax implications of expanding or selling your property portfolio.
Our aim is to make your accounting straightforward, so you can spend less time worrying about paperwork and more time managing your property investment.
Need help with your landlord accounts? Speak to Accounting Wise about managing your rental income, tax returns and ongoing accounting requirements.
Get Your Landlord Finances Right From Day One
Becoming a landlord can be a worthwhile investment, but it comes with responsibilities that should not be overlooked.
Property safety, tenancy rules and licensing requirements are essential, but understanding the financial side is just as important.
Knowing what rental income you need to declare, which expenses you can claim and when your tax payments are due can help you avoid unnecessary costs and make better decisions about your investment.
With Making Tax Digital now being introduced for landlords, higher property income tax rates arriving in April 2027 and significant changes to renting legislation in England, there is plenty for new property owners to keep track of.
The best approach is to get organised early, maintain accurate records and seek advice whenever you are unsure about your obligations.
That way, you can concentrate on making your rental property work for you, rather than spending your time catching up with paperwork.
This article provides general information based on UK tax rules and landlord requirements as at October 2026. Property legislation di
