Trusted Self Assessment Tax Specialists

Self Assessment Tax Returns

Filing your Self Assessment tax return doesn't have to be stressful. Our experienced accountants help sole traders, landlords, company directors and self-employed professionals prepare and submit accurate tax returns on time while maximising every allowable tax deduction.

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Who We Help with Self Assessment Tax Returns

Sole Traders & Self-Employed

Running your own business? We prepare accurate, on-time sole trader and self-employed tax returns — so you can focus on the work that matters.

Landlords

Rental income comes with its own rules. We prepare landlord tax returns correctly, claiming every allowable expense you're entitled to.

Company Directors

Directors are required to file personally, if they receive dividends or have additional taxable income to report. We prepare company director tax returns, fully compliant with HMRC.

CIS Subcontractors

Had tax deducted under CIS? Many subcontractors are due money back. We prepare CIS tax returns and reclaim overpaid tax on your behalf.

Private Hire & Delivery Drivers

Private hire and delivery driving comes with its own tax rules. We prepare Self Assessment tax returns for self-employed drivers across Birmingham.

What's Included in Our Self Assessment Tax Return Service

Self Assessment registration support — for clients not yet registered with HMRC, we register you with HMRC and apply for your UTR number.
Full review of all income sources — employment, self-employment, rental/property, dividends, savings interest, foreign income and capital gains, so nothing is missed.
Allowable expenses & reliefs check — cross-referenced against the client's specific circumstances.
Accurate tax calculation — including Payments on Account where applicable, so the client sees the full picture, not just a headline figure.
Preparation of the full return — including relevant supplementary pages
Client review & sign-off — nothing is submitted until the client has seen and approved the figures.
Secure online submission to HMRC — filed directly as the client's authorised agent, with confirmation provided once accepted.
Ongoing HMRC liaison and year-round support — for queries or correspondence any time, not a once-a-year January transaction.

Do You Need to File a Self Assessment Tax Return?

Not sure if Self Assessment applies to you? If any of the following apply, you'll likely need to file a return:
You're self-employed or a sole trader earning more than £1,000 a year
You're a partner in a business partnership
ou're a company director receYiving dividends or other income not already taxed through PAYE
You earn rental income of more than £1,000 a year
You have dividend or savings income above your tax-free allowances
Your total income for the year is more than £100,000
You've sold property, shares or another asset and made a capital gain
You're a CIS subcontractor
You're claiming tax relief on pension contributions, Gift Aid, or have other untaxed income
Still not sure? Ask us — it's free.

Why Choose Sahi Accountancy for Self Assessment

Sahi Accountancy is a Birmingham-based Self Assessment accountant, led by Arslan Mahmood, a Chartered Accountant and member of both ICAEW and ACCA — two of the UK's leading accountancy bodies. When you work with us, you deal directly with a qualified accountant, not a call centre or a rotating team of case handlers, from your first enquiry through to submission.We're based at Fairgate House in Tyseley, and work with clients across UK in person or remotely. Using modern, cloud-based accounting software, we keep the process simple and transparent, with fixed, upfront pricing and no hidden extras.

What Our Clients Say About Us

Self Assessment Tax Return - Frequently Asked Questions

Do I need to complete a Self Assessment tax return?

You’ll usually need to file if you’re self-employed earning over £1,000, a company director with dividends, a landlord, or have income from savings, investments or capital gains not already taxed. See the full checklist above, or ask us if you’re unsure.

What is the Self Assessment deadline this year?

For the 2025/26 tax year, online returns and any tax owed are due by 31 January 2027. Paper returns are due 31 October 2026, and you must register by 5 October 2026 if this is your first return.

How much does an accountant charge for a Self Assessment tax return?

Fees depend on the complexity of your return — for example, a simple sole trader return costs less than one involving property income, dividends and capital gains. We offer fixed, upfront pricing — get a free quote to see your exact cost.

What happens if I miss the Self Assessment deadline?

HMRC issues an automatic £100 penalty for late filing, even if you don’t owe any tax, with further penalties the longer it’s left. If you’ve missed a deadline, get in touch — we can often help reduce the impact.

Can I do my own Self Assessment tax return?

Yes — HMRC allows anyone to file their own return online. Many people do, but it’s easy to miss allowable expenses or make errors that trigger HMRC queries. A qualified accountant can save time and often more than covers their own fee.

What is a UTR number and how do I get one?

A UTR (Unique Taxpayer Reference) is the 10-digit number HMRC uses to identify your tax records. You’re issued one automatically when you register for Self Assessment, usually arriving by post within around 10 working days.

━━━━ Need Self Assessment Support?

Book Your Free Self Assessment Tax Return Consultation - Speak to a qualified, ACCA & ICAEW-accredited accountant about your Self Assessment — free, with no obligation, and before the next deadline creeps up on you.

Speak With Sahi Accountancy

Birmingham Office

Fairgate House, 205 Kings Road, Tyseley, Birmingham, B11 2AA

Email us

info@sahiaccountancy.co.uk

Call us

0121 794 2362
0737 543 9825