Specialist UK tax advice for London individuals, landlords, directors and businesses

Landlord tax return accountant London

Landlord tax return support for rental income, property expenses and HMRC reporting.

Tax Accountant London prepares landlord tax returns, SA105 UK property pages, rental income calculations, mortgage interest relief claims, joint property schedules, non-resident landlord returns, Making Tax Digital readiness reviews and HMRC property income disclosures.

SA105 property pages Buy-to-let landlords Mortgage interest relief Joint property owners MTD for landlords
Rental income tax is not just rent minus mortgage payments.

The correct tax return depends on gross rent, allowable expenses, finance cost relief, ownership share, agent statements, property losses, repairs versus improvements, furnished lettings, non-resident status, MTD thresholds and whether earlier years need correcting.

01 SA105 property pages

UK property income, expenses, finance costs, losses and ownership share prepared for Self Assessment.

02 Mortgage interest relief

Residential finance costs reviewed for the correct basic rate tax reduction treatment.

03 HMRC-ready property records

Rental statements, expenses, repairs, improvements and agent records reviewed before filing.

Rental income tax return London

Landlords usually report UK rental income through Self Assessment using the UK property pages.

A landlord tax return reports rental income, allowable property expenses, finance costs, losses and any adjustments needed for UK property income. The return may also need to consider whether the landlord is UK resident, non-resident, jointly owning the property, receiving rent through an agent or correcting earlier years.

A landlord tax return accountant should check the rental business as a whole, not simply copy figures from an agent statement. The correct result depends on the tax year, gross rents, allowable costs, repairs, improvements, mortgage interest, property losses, private use and supporting documents.

Who needs landlord tax return support

Property tax return support for buy-to-let landlords, joint owners, overseas landlords and portfolio landlords.

Landlord tax can look simple until mortgage interest, joint ownership, property losses, repairs, non-residence, earlier-year omissions or MTD reporting are involved.

01

Buy-to-let landlords

Rental income, agent fees, repairs, insurance, mortgage interest relief, property schedules and annual Self Assessment filing.

02

Joint property owners

Ownership shares, declarations of trust, spouse ownership, split income, shared expenses and separate tax return reporting.

03

Non-resident landlords

UK rental income, non-resident landlord position, withholding issues, annual returns and HMRC property reporting.

04

Landlords contacted by HMRC

Nudge letters, Let Property Campaign, undeclared rents, omitted years, penalties and HMRC property income enquiries.

SA105 accountant London

SA105 UK property pages should show the rental position clearly and supportably.

The UK property pages are used with the main Self Assessment tax return to report income from UK land and property. The calculation should show rental income, allowable expenses, finance costs, losses, reliefs and any adjustments needed for the tax year.

Gross rental income

Rent should be recorded before deductions and matched to the correct tax year, property and ownership share.

Allowable expenses

Agent fees, insurance, repairs, service charges, ground rent, accountancy fees and other allowable costs should be reviewed.

Mortgage interest relief

Residential finance costs are not treated like ordinary expenses and need the correct tax reduction treatment.

Property losses

Losses may be carried forward and used against future profits of the same property business, subject to the rules.

Joint ownership

Each owner may need to report their share. The beneficial ownership and supporting documents should be checked.

Furnished lettings

Replacement domestic items, furnishings, repairs and capital items need separate review before claiming relief.

Mortgage interest relief for landlords

Residential landlord finance costs need separate treatment from ordinary expenses.

Individual landlords of residential property cannot normally deduct all finance costs directly from rental income in the same way as ordinary expenses. Instead, relief is generally given as a basic rate tax reduction. This can affect higher-rate taxpayers, portfolio landlords and landlords with other income.

Residential buy-to-let mortgages

Mortgage interest, arrangement fees and finance costs need to be separated from capital repayments and non-finance costs.

Higher-rate taxpayer impact

Finance cost restriction can increase taxable rental profit before the basic rate reduction is applied.

Mixed-use or commercial property

Different rules can apply where the borrowing relates to non-residential property or mixed property businesses.

Company-owned property

Limited company property tax treatment is different from individual landlord reporting and should be reviewed separately.

Allowable rental property expenses

Property expenses must be reviewed by type, timing and evidence.

Landlords often underclaim or overclaim because they do not separate repairs, capital improvements, private costs, finance costs and property management expenses. A supported tax return should show what has been claimed and why.

Repairs and maintenance

Repairs may be allowable where they restore the property rather than improve it beyond its original condition.

Capital improvements

Improvements are usually not deducted from rental income but may be relevant for Capital Gains Tax when the property is sold.

Agent and professional fees

Letting agent fees, management charges and accountancy fees may be allowable where they relate to the rental business.

Insurance and service charges

Landlord insurance, service charges and ground rent need to be matched to the property and relevant tax year.

Travel and mileage

Travel to inspect or manage property may be allowable where it is wholly and exclusively for the rental business.

Private or mixed costs

Costs with private use, owner occupation or non-rental purpose may need restriction or exclusion.

Specialist landlord tax issues

Areas often missed in basic landlord tax returns.

A basic rental schedule may not deal properly with ownership, finance costs, capital items, property losses, non-resident status, foreign property, incorporation, MTD or earlier-year omissions.

Jointly owned property

Income does not always follow who receives the rent. Beneficial ownership, Form 17, deeds and ownership evidence may matter.

Repairs versus improvements

Replacing a broken item and improving the property are different tax issues. The wrong treatment can affect both Income Tax and CGT.

Rent-a-room and lodgers

Letting part of your home can involve Rent a Room relief, normal property income rules or restrictions depending on the facts.

Holiday lets and furnished lets

Holiday accommodation can involve different income, expense, VAT and record-keeping points from standard residential letting.

Property incorporation

Moving property to a company can trigger SDLT, CGT, mortgage and commercial issues. It should be reviewed before action.

Capital Gains Tax on sale

A landlord tax return may need to connect with a 60-day CGT report, property disposal calculation and Self Assessment entry.

Making Tax Digital for landlords

Landlords should prepare for digital records and quarterly updates.

Making Tax Digital for Income Tax is being phased in for landlords based on qualifying income. HMRC uses gross qualifying income before expenses, so landlords should check rental income levels, self-employment income and the relevant start date.

From 6 April 2026

Landlords with qualifying income over £50,000 based on the relevant tax year may need to use MTD for Income Tax.

From 6 April 2027

The threshold reduces to qualifying income over £30,000 for the relevant tax year.

From 6 April 2028

The threshold reduces to qualifying income over £20,000 for the relevant tax year.

Digital record readiness

Landlords should keep property income and expenses organised by property, category and tax year before quarterly reporting begins.

HMRC landlord letters and Let Property Campaign

Undeclared rental income should be reviewed before HMRC is answered.

HMRC may contact landlords about undeclared rental income, property records, letting agent data, deposit information, overseas ownership, Capital Gains Tax or earlier tax years. The response should be based on the records, tax years and disclosure position.

Records needed for a landlord tax return

Rental records should be organised by property, tax year and expense type.

Rental income records

Tenancy agreements, rent statements, letting agent statements, bank receipts and rent arrears details.

Property expense records

Repairs, insurance, service charges, ground rent, agents’ fees, council tax during voids and professional fees.

Mortgage and finance records

Mortgage interest statements, arrangement fees, loan statements and evidence separating interest from capital repayments.

Ownership and HMRC records

Ownership share, declarations of trust, previous returns, HMRC letters, non-resident landlord paperwork and property loss records.

Landlord tax return process

A structured route from rental records to SA105 filing or disclosure.

1 Scope the property position

We identify the tax year, number of properties, ownership share, residence position and HMRC deadlines.

2 Review income and expenses

We review agent statements, rent, expenses, finance costs, repairs, improvements, losses and supporting evidence.

3 Prepare SA105 property pages

We prepare the UK property schedule, mortgage interest relief calculation and Self Assessment entries.

4 File, advise or disclose

We file the return or advise on amendment, Let Property Campaign, MTD readiness, CGT reporting or HMRC response.

Landlord tax return fees

Fees depend on properties, records, ownership and HMRC risk.

We quote before work starts. A single property with clean letting agent statements is different from a portfolio, joint ownership, non-resident landlord case, HMRC letter, historic omission or MTD-ready record review.

Landlord tax return from £440 + VAT

For one UK rental property with clean records and standard SA105 reporting.

Joint or multiple properties quoted after review

For multiple properties, joint owners, mixed records, property losses or additional rental schedules.

Let Property Campaign from £2,500 + VAT

For historic rental income disclosure, HMRC settlement calculations and penalty position review.

Landlord Tax Return FAQs

Common questions about rental income, SA105, expenses, mortgage interest, MTD and HMRC disclosures.

Do landlords need to file a Self Assessment tax return?

Landlords usually need to file a Self Assessment tax return if they receive taxable rental income that is not fully dealt with elsewhere. UK rental income is normally reported using the SA105 UK property pages.

What is the SA105 property page?

SA105 is the UK property supplementary section of the Self Assessment tax return. It is used to report rental income, property expenses, finance costs, losses and other UK property income details.

Can I deduct mortgage payments from rental income?

Capital repayments are not deductible. For individual residential landlords, mortgage interest and finance costs are usually dealt with through the basic rate tax reduction rules rather than as a full expense deduction.

What expenses can landlords claim?

Allowable expenses may include letting agent fees, repairs, insurance, service charges, ground rent, professional fees and other costs incurred wholly and exclusively for the rental business. Capital improvements are treated differently.

What is the difference between repairs and improvements?

Repairs generally restore an asset to its previous condition, while improvements enhance it beyond its original condition. Repairs may be allowable against rental income; improvements may be relevant for Capital Gains Tax when the property is sold.

How is jointly owned rental income reported?

Jointly owned rental income is usually reported according to beneficial ownership. Spouses, civil partners, declarations of trust and Form 17 positions may need review before filing.

Do non-resident landlords need a UK tax return?

Non-resident landlords with UK rental income often need to report the income to HMRC. The non-resident landlord position, withholding tax and annual Self Assessment filing should be reviewed.

What is Making Tax Digital for landlords?

Making Tax Digital for Income Tax is being phased in for landlords based on qualifying income. It requires digital record keeping and digital reporting through compatible software once the landlord is within scope.

What if I forgot to report rental income in earlier years?

Earlier-year rental income omissions may need an amendment, disclosure or Let Property Campaign submission depending on the tax years, amount, behaviour and whether HMRC has contacted you.

Does selling a rental property create a separate CGT filing requirement?

A rental property sale may create Capital Gains Tax reporting and payment obligations, including a possible 60-day UK property CGT report. The gain may also need to be included on the Self Assessment tax return.