Self Assessment Tax Return Services
In Greater London
Managing your tax obligations can be complex, which is why finding reliable Self Assessment Tax Return Services in Greater London is essential for individuals and businesses alike. The professionals listed on AccountingFirms specialise in preparing and submitting accurate returns to HMRC, ensuring you meet deadlines and minimise your tax liability. Whether you require assistance with an hmrc self assessment, an hmrc personal assessment, or a straightforward personal tax return, the firms featured in the directory have the expertise to help. By using Self Assessment Tax Return Services in Greater London, you gain access to qualified ACCA, ICAEW, and AAT accountants who understand local regulations and can advise on VAT, Corporation Tax, and Self Assessment matters. AccountingFirms, established in 2019 by ICAEW and ACCA accountants, allows you to browse local firms, compare providers, and connect with verified professionals who can simplify your tax affairs. Choosing the right Self Assessment Tax Return Services in Greater London gives you peace of mind, knowing your finances are in capable hands. The directory is designed to help you find and compare trusted accountants in Greater London, making it straightforward to locate a specialist who can handle everything from sole trader returns to complex partnership filings. With the right support from Self Assessment Tax Return Services in Greater London, you can avoid penalties and focus on what matters most.
Director's Personal Self Assessment (SA100)
Director's Personal Self Assessment (SA100)
- SA100 personal tax return prepared and filed
- Director's salary and dividend income declared
- PAYE income from other employment included
- All allowable personal expenses identified and claimed
- Income Tax and Class 4 NIC calculated
- Payments on account calculated and explained
- HMRC submission as your authorised agent
What's Included — Complete Transparency
✓ No hidden feesIncluded in £199+VAT
- SA100 personal tax return prepared and filed
- Director's salary and dividend income declared
- PAYE income from other employment included
- All allowable personal expenses identified and claimed
- Income Tax and Class 4 NIC calculated
- Payments on account calculated and explained
- HMRC submission as your authorised agent
Available as add-ons
- Company Dissolution (DS01) (£148.98+VAT)
- Company Formation (Incorporation) (£200.00+VAT)
- Confirmation Statement (CS01) (£92.00+VAT)
- Corporation Tax Returns (£500.00+VAT)
- HMRC Enquiry & Letter Support (£98.98+VAT)
- Limited Company Full Compliance Bundle (£99.00+VAT)
- Micro Entity Accounts (£398.99+VAT)
- Monthly Bookkeeping (£79.00+VAT)
- P11D — Benefits in Kind (£49.00+VAT)
- Payroll — Monthly (£28.99+VAT)
- Registered Office Address (£120.00+VAT)
- VAT Registration (£79.00+VAT)
- VAT Return (per quarter) (£89.00+VAT)
- Years End/Annual Accounts & Tax Return (£499.00+VAT)
Not sure if you need an add-on? Contact us first — we'll tell you honestly before you book.
How It Works — 3 Simple Steps
Book & Pay
Complete your booking online. Pay securely via Stripe. Receive instant confirmation with a document checklist.
Share Your Documents
Upload your P60, self-employment records and any other income details via our secure portal. No paperwork needed.
We File With HMRC
Your ACCA accountant prepares and submits your return within 5 working days. You receive your tax calculation.
Why Choose Accounting Firms?
Fixed, Transparent Pricing
No hidden charges or unexpected bills. Our pricing is clear from the start, so you know exactly what's included before we begin.
Fast & Stress-Free Process
We make accounting simple. Upload your details, answer a few questions, and our team handles the paperwork and submissions for you.
Qualified UK Accounting Experts
Work with experienced UK accountants who understand HMRC requirements and provide practical advice tailored to your situation.
HMRC Compliance & Accuracy
From tax returns to annual accounts, we help ensure your records are prepared correctly and submitted on time to reduce errors and penalties.
Dedicated Support When You Need It
Have questions? Our team is available to guide you through every step and explain things in plain English.
More Than Filing — Business Growth Support
Beyond compliance, we help businesses improve financial visibility, manage cash flow, and make better decisions for long-term growth.
What Greater London Clients Say
"Fixed price meant no nasty surprises. My return was done in 3 days and Sarah caught expenses I'd missed that saved me £340 in tax. Will be back every year."
"First time filing self assessment as a freelancer. I was dreading it. The whole process was explained clearly, everything was done online and I didn't have to do anything except provide my records."
"Used to pay £350 to my high street accountant. Same quality service here for £149+VAT and I didn't even have to leave the house. Absolute no-brainer."
HMRC Late Filing Penalties — What You Risk
1 day late automatic penalty
£10/day for up to 90 days
(after 3 months)
of tax owed or £300 after 6 months
further surcharge after 12 months late
Our ACCA accountant files your return in 5 days. Guaranteed on time.
Self Assessment Tax Return Services in Greater London — Complete Guide 2026
Frequently asked questions
What documents do I need to prepare for a Self Assessment tax return?
You will need your P60, P45, and any P11D forms from your employer, plus records of self-employment income, bank interest, dividends, and details of any taxable benefits or expenses. Keeping organised records throughout the year makes the process smoother and helps your accountant submit an accurate return to HMRC.
How can an ACCA or ICAEW accountant help with my HMRC Self Assessment?
An ACCA or ICAEW accountant understands HMRC regulations thoroughly and can ensure your tax return is completed correctly and on time. They identify allowable expenses, maximise reliefs, and reduce the risk of an HMRC enquiry. Their expertise saves you time and helps you avoid costly mistakes or penalties.
What is the deadline for filing a Self Assessment tax return in Greater London?
The online filing deadline for Self Assessment tax returns is 31 January following the end of the tax year. Paper returns must be submitted by 31 October. Missing these deadlines results in automatic penalties, so it is wise to engage a qualified accountant early to ensure timely submission.
Do I need to register for Self Assessment if I am self-employed in Greater London?
Yes, if you are self-employed and earn more than £1,000 in a tax year, you must register for Self Assessment with HMRC. Your accountant can handle the registration process and advise on your obligations, including Class 2 and Class 4 National Insurance contributions, to keep you compliant.
Can a VAT-registered accountant assist with both my VAT and Self Assessment returns?
Yes, many accountants listed on AccountingFirms are VAT-registered and can manage both your VAT returns and Self Assessment filings. This integrated approach ensures consistency across your tax affairs, helps with cash flow planning, and reduces the administrative burden of dealing with HMRC separately for each obligation.
What happens if I make a mistake on my submitted tax return?
If you discover an error after submission, you can amend your return within 12 months of the filing deadline. An experienced accountant can help you submit a corrected return and liaise with HMRC if necessary. Prompt correction reduces the risk of penalties and interest charges for underpaid tax.
Related Services in Greater London
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