Landlord Accountant Blackburn: Tax on Rental Income, MTD for Landlords and Allowable Expenses

A landlord accountant in Blackburn works out the tax on your rental profit, claims every allowable expense and gets you ready for Making Tax Digital.

Since 2020 mortgage interest only earns a 20% tax credit, so getting the rest right matters more than it used to.

If you own even one rental property in Blackburn, HMRC treats you as running a property business, and the rules have tightened:

Mortgage interest is no longer fully deductible.
Making Tax Digital now applies to landlords with qualifying income over £50,000.
Capital Gains Tax on a residential sale is due within 60 days.

This guide is for Blackburn landlords, from accidental landlords to portfolio owners. It covers how rental income is taxed in 2026, which expenses you can claim, how MTD applies to landlords, and the mistakes that most often cost money.

1. How is rental income taxed in the UK in 2026?

Rental income from residential property is taxed as property income on your Self Assessment tax return (SA100 + SA105). It is added to your other income and taxed at your marginal rate — 20%, 40% or 45%. Scottish taxpayers pay Scottish rates instead.

Looking ahead, the November 2025 Budget announced separate property income rates of 22%, 42% and 47% from 6 April 2027 in England and Northern Ireland, with the finance-cost credit rising to 22%.

Key thresholds to know:

£1,000 Property Allowance — if your gross rental income is under £1,000, you usually don’t need to declare it.
£2,500+ in rental income after expenses (or £10,000+ before expenses) means you must report it on a Self Assessment return. Between £1,000 and £2,500, contact HMRC instead and they can collect the tax another way.
Rent-a-Room Scheme: up to £7,500 tax-free if you let a furnished room in your own home.
Non-resident landlords must operate under the NRL scheme — tax withheld at source unless approved to receive rents gross.

Joint ownership: rental profits are split according to legal ownership by default (50/50 for spouses), but a Form 17 plus a Declaration of Trust can change the split for tax purposes when beneficial ownership differs.

How does the mortgage interest restriction affect landlords?

Since April 2020, individual landlords cannot deduct mortgage interest from rental income as an expense. Instead, you get a 20% tax credit against your Income Tax bill for the mortgage interest paid.

Practical impact for higher-rate landlords: your taxable rental profit is calculated before mortgage interest, which can:

Push you into the 40% or 45% band even when your real-world cashflow is thin,
Reduce your Child Benefit (High Income Child Benefit Charge kicks in above £60,000), and
Restrict your personal allowance if adjusted income exceeds £100,000.

This is why many Blackburn landlords with 3+ properties consider incorporating into a limited company — companies still deduct mortgage interest in full.

Incorporation has its own costs (SDLT, CGT, remortgaging) and isn’t right for everyone. Take advice before restructuring.

What expenses can landlords claim?

Any expense that is wholly and exclusively incurred for the rental business is allowable. In practice for a Blackburn buy-to-let that means:

Allowable:

Letting agent and management fees
Landlord insurance and rent guarantee cover
Council Tax and utility bills (during void periods or if you pay them)
Ground rent and service charges
Repairs and maintenance (broken boiler, replacing a rotten window like-for-like)
Cleaning, gardening and safety certificates (gas safety, EICR, EPC)
Accountant’s fees for the property accounts
Advertising the property to let
Mileage or motor costs for property visits (usually 45p/mile flat rate)
Mortgage arrangement and broker fees, but these count as finance costs, so for individual landlords of residential property they get the same 20% tax credit as interest rather than a full deduction

Not allowable as an expense (though they may reduce Capital Gains Tax later):

The property purchase price and legal/survey costs on purchase
Improvements — a new extension, loft conversion, or upgrading a basic kitchen to a luxury one
Capital repayments on the mortgage (only interest gets the 20% credit)
Your own labour

The Replacement of Domestic Items Relief lets you deduct the cost of replacing furniture, appliances, kitchenware and soft furnishings in a fully-let residential property — but only the like-for-like replacement, not the original purchase or an upgrade element.

When does Making Tax Digital apply to landlords?

Making Tax Digital for Income Tax Self Assessment (MTD ITSA) applies to landlords in phases, based on gross combined income from self-employment and property:

From April 2026: gross income over £50,000
From April 2027: gross income over £30,000
From April 2028: gross income over £20,000

If you’re in scope, you must:

Keep digital records of rental income and expenses,
Use MTD-compatible software (FreeAgent, Hammock, Xero, QuickBooks, or bridging software),
Submit quarterly updates to HMRC, and
File a Final Declaration after the tax year end replacing the traditional Self Assessment.

If you have both self-employment and rental income, the £50k/£30k/£20k threshold is the combined gross total — many Blackburn landlords with a small side business will be caught earlier than they expect.

What tax mistakes do landlords make?

Not registering for Self Assessment when rental income starts.
Deducting mortgage capital repayments as if they were interest.
Claiming improvements as repairs (HMRC challenges this often).
Missing the 60-day CGT deadline when selling a rental property.
Forgetting to declare deposits kept for damages as income.
Overlooking joint ownership Form 17 planning for higher/lower-rate couples.
Assuming a limited company is automatically better — often it isn’t for 1–2 properties.

Frequently Asked Questions

How is rental income taxed in the UK?

Rental profits (rent received minus allowable expenses) are added to your other income and taxed at your marginal rate — 20%, 40% or 45%. Report via Self Assessment. From April 2026, landlords with combined qualifying income over £50,000 fall into Making Tax Digital for Income Tax.

What expenses can landlords claim?

Allowable expenses include letting agent fees, repairs and maintenance (not improvements), landlord insurance, ground rent and service charges, accountancy fees, replacement of domestic items, and finance costs (as a 20% tax credit on residential lets).

Do landlords still get mortgage interest relief?

Since April 2020, mortgage interest is no longer deducted as an expense on residential lets. Instead, you receive a 20% tax reduction (basic-rate credit) on the interest paid — which can push higher-rate landlords into paying tax on losses.

When does Making Tax Digital apply to landlords?

From April 2026, landlords with combined self-employment and property income over £50,000 must keep digital records and file quarterly updates. The threshold drops to £30,000 in April 2027 and £20,000 in April 2028.

The bottom line

Landlord tax is an area where a good landlord accountant in Blackburn pays for themselves several times over: correctly claimed expenses, joint-ownership planning, incorporation advice where it fits, and getting you MTD-ready before HMRC forces the issue.

If you own rental property in or around Blackburn and haven’t reviewed your position in the last 12 months, talk to our property and landlord accounting specialists or our accountants in Blackburn.

Tax figures checked by Rehan Razzaq FCCA on 8 October 2026 for the 2026/27 tax year.

This article is general guidance for UK businesses and individuals and does not constitute personal financial or tax advice. Rules, thresholds and individual circumstances vary — always confirm your specific position with a qualified accountant before acting.

WRITTEN BY

Rehan Razzaq, FCCA

Founder, R&R Chartered Certified Accountants

ACCA Chartered Certified and Xero Certified Advisor, helping Blackburn businesses and landlords with accounts, tax and financial planning since 2021.

More about Rehan →

We work with clients right across Lancashire and the North West. If you are looking for accountants in Blackburn, or a local accountant in Darwen or accountant in Burnley, our team is a short drive away.