Self Assessment tax returns in Harrow

Do I need to file a tax return in Harrow?

Put simply: anyone with rental, self-employed, investment or foreign income, or high income with Child Benefit, normally needs a Self Assessment return.

As a Harrow tax accountant we prepare returns for landlords with portfolios across north-west London, pharmacists, dentists and other professionals with private income, family businesses in Wealdstone and Rayners Lane, and households with property or savings overseas.

We help families use both partners’ allowances sensibly and plan ahead for larger events such as selling a property.

Common reasons HMRC needs a tax return

• You are self-employed or a partner in a business
• You earn rental income over £1,000
• You receive dividends above £500
• You made capital gains above £3,000
• You have foreign income
• You or your partner earn over £60,000 and get Child Benefit
• HMRC sent you a notice to file

Self-employed tax returns in Harrow

Locum pharmacists, dentists and other healthcare professionals often combine PAYE and self-employed work. We prepare returns that capture both, claim professional fees and indemnity, and advise on whether a limited company suits you. See doctors and locums. See self-employed accountants and add bookkeeping if you would like records kept for you.

Landlord tax returns in Harrow

Harrow landlords often own several properties, sometimes jointly with family members. We prepare property-by-property schedules, apply mortgage interest relief and consider whether ownership changes could reduce tax. Mortgage interest relief is a 20% tax credit, rising to 22% from April 2027 when property income gets its own 22%, 42% and 47% rates. More on landlord tax returns; for missed rent, the Let Property Campaign.

Selling a rental property

When you sell a UK residential property that is not your main home, Capital Gains Tax must usually be reported and paid within 60 days of completion, then included on your tax return. We calculate the gain, deduct buying and selling costs and improvements, and file both returns. See Capital Gains Tax.

Partnership tax returns

Partnerships, from family shops to professional practices, file a partnership return (SA800) plus each partner’s own return. We prepare both so the profit shares match. See partnership tax returns.

Capital Gains Tax reporting

Gains above the £3,000 annual exempt amount are taxed at 18% or 24%. A UK home you sell that is not your main residence must be reported, with tax paid, within 60 days of completion. Our Capital Gains Tax team handles both returns.

Foreign income reporting

UK residents are usually taxed on worldwide income, with foreign tax credit relief for tax paid abroad. Missed foreign income can be put right through the Worldwide Disclosure Facility.

Crypto tax reporting

Selling, swapping or spending crypto can create a gain, and staking is usually income. We apply HMRC’s pooling rules; see crypto tax returns.

What to send us for your Harrow tax return

Most clients only need a few documents. We send a tailored checklist after your first call.

• P60 or payslips from any employment
• Bank statements or invoices for self-employed income
• Receipts for business costs, or a simple spreadsheet
• Rent statements from your letting agent
• Mortgage interest statements for rental properties
• Dividend vouchers and investment statements
• Details of any overseas income and tax paid abroad

Penalties for late filing

What if I miss the deadline? For returns up to 2025/26: £100 immediately, £10 a day after three months (up to £900), then 5% or £300 at six and twelve months. A points-based system applies to everyone from April 2027.

Why Harrow clients choose Wingate

• Chartered Certified Accountants and HMRC registered tax agent
• Fixed fees from £150, VAT included
• Experience with landlords, the self-employed, partnerships, investors and overseas income disclosures
• Fast replies by phone, email or WhatsApp
• Also VAT returns, company accounts, payroll, HMRC disclosures and tax investigation support

Looking elsewhere in the capital? See Self Assessment tax returns in London.

Official guidance: Check if you need to send a Self Assessment tax return · Self Assessment deadlines