Accounting for Landlords: Tax, Records and Software

TL;DR: Key Takeaways for Landlords

Understanding Rental Income Tax in the UK (2026/27)

As a UK landlord, your rental income is subject to Income Tax. This isn't taxed on the gross rent you receive, but rather on your net rental profit - the amount left after deducting your allowable expenses. It's crucial to understand how this interacts with your other income sources, as your total income determines your tax band.

Income Tax Bands for 2026/27

Here's a quick overview of the Income Tax bands applicable for the 2026/27 tax year in England, Wales, and Northern Ireland. Scotland has different rates.

Note: The Personal Allowance is reduced by £1 for every £2 of income over £100,000, meaning it's completely lost at £125,140.

Section 24 Mortgage Interest Restriction

One of the most significant changes for landlords in recent years is the restriction on mortgage interest relief, often referred to as 'Section 24'. Since April 2020, landlords can no longer deduct finance costs (like mortgage interest) from their rental income to reduce their tax bill. Instead, you receive a basic rate (20%) tax credit on your finance costs.

How Section 24 Works: A Simplified Example

Let's consider a higher-rate taxpayer for the 2026/27 tax year:

1. Gross Rental Income: £20,000
2. Allowable Expenses (excluding mortgage interest): £5,000
3. Mortgage Interest: £8,000
4. Taxable Rental Profit (before tax credit): £20,000 (Gross Income) - £5,000 (Expenses) = £15,000
5. Income Tax Due (assuming 40% higher rate): £15,000 * 40% = £6,000
6. Finance Cost Tax Credit: £8,000 (Mortgage Interest) * 20% = £1,600
7. Net Income Tax Payable: £6,000 - £1,600 = £4,400

Without Section 24, the landlord would have paid tax on (£20,000 - £5,000 - £8,000) = £7,000, resulting in a tax bill of £2,800 at 40%. The impact is clear.

Allowable Expenses for Landlords

Deducting allowable expenses is key to reducing your taxable rental profit. HMRC is strict about what constitutes an allowable expense - it must be incurred wholly and exclusively for the purpose of your property rental business.

Common Allowable Expenses:

• Repairs and Maintenance: This includes fixing a broken boiler, repairing a leaky roof, or repainting. Crucially, these must be *repairs*, not *improvements*. An extension or upgrading to a significantly better quality item (e.g., single glazing to double glazing) is usually an improvement.
• Letting Agent Fees: Fees paid to a letting agent for finding tenants, managing the property, or collecting rent.
• Legal and Accountancy Fees: Costs for drawing up tenancy agreements, evictions, or preparing your Self-Assessment tax return for your property business.
• Insurance: Landlord insurance, building insurance, and contents insurance (if applicable).
• Service Charges and Ground Rent: If your property is leasehold.
• Council Tax and Utility Bills: Only when the property is empty between tenants and you are responsible for these costs.
• Travel Expenses: Costs of travelling to and from your rental property for inspections or repairs.
• Office Costs: Phone calls, stationery, and other administrative expenses related to your property business.

Wear and Tear Replacement Relief

For residential landlords, you can claim tax relief for the cost of replacing domestic items like beds, sofas, carpets, curtains, fridges, and washing machines. This relief is for the *cost of the new item*, limited to the cost of a like-for-like replacement, and only if the old item was used in the rental property and has been replaced with a new one.

Furnished Holiday Lets (FHLs) - Changes from April 2025

Furnished Holiday Lets (FHLs) have historically enjoyed more favourable tax treatment than standard residential lets, including full mortgage interest relief, capital gains tax reliefs (e.g., Business Asset Disposal Relief), and the ability to claim capital allowances on furniture and fixtures. However, the Spring Budget 2024 announced that the FHL regime will be abolished from April 2025.

Property Income Allowance (£1,000)

If your gross property income is £1,000 or less in a tax year, you don't need to declare it to HMRC or pay tax on it. This is known as the Property Income Allowance. If your gross income is between £1,001 and £2,500, you can choose to use the allowance instead of deducting actual expenses. If it's over £2,500, you must declare it via Self-Assessment.

Self-Assessment for Landlords

Most landlords will need to complete a Self-Assessment tax return each year to declare their rental income and expenses. You must register for Self-Assessment if your gross rental income is over £1,000 (and you're not already submitting a return for other reasons).

Key Self-Assessment Deadlines (2026/27 Tax Year):

• 5 October 2026: Register for Self-Assessment if you haven't already.
• 31 October 2026: Deadline for paper tax returns.
• 31 January 2027: Deadline for online tax returns and payment of any tax due for the 2026/27 tax year.
• 31 January 2027: Deadline for first payment on account for the 2026/27 tax year.

Limited Company Landlord: Pros and Cons

Many landlords consider setting up a limited company to hold their properties. This can offer tax advantages, particularly for higher-rate taxpayers, but also comes with increased administrative burden and costs.

Best Accounting Software for Landlords (2026/27)

Choosing the right accounting software can transform how you manage your property finances, saving you time and ensuring accuracy for Self-Assessment. Here are some top contenders for UK landlords:

Why Use Accounting Software?

Beyond simply tracking income and expenses, good accounting software can:

• Automate bank reconciliation, saving hours of manual entry.
• Generate accurate reports for your Self-Assessment tax return.
• Provide a clear overview of your property's profitability.
• Help you stay compliant with HMRC's Making Tax Digital (MTD) requirements.
• Organise all your financial documents in one place.