If you receive untaxed income — for example from self-employment, property, dividends, investments, or overseas sources — you may need to complete a Self Assessment tax return (SA100). We take care of the process end-to-end: gathering records, calculating your tax, claiming reliefs, and submitting to HMRC.
Whether this is your first return or you’ve left it late, our AAT AML-supervised team provides fast, accurate support. We also assist non-UK residents with UK tax obligations and directors with complex income sources.
Why Choose Accusolve for Self Assessment?
Avoid errors, reduce stress, and make the most of available allowances:
- Complete preparation and online filing to HMRC
- Accurate calculations across employment, self-employment, property & investments
- Reliefs and allowances optimised (incl. expenses, losses, pension & gift aid claims)
- Help with late returns, corrections & penalty mitigation
- Clear tax summaries and payment guidance
Who We Help
- Sole traders, freelancers & contractors
- Company directors & shareholders
- Landlords (single property to portfolios)
- High-earners & those with multiple income streams
- Non-UK residents with UK tax obligations
- Investors with dividends, interest or capital gains
Our Self Assessment Service Includes
- Review of your tax position and HMRC registration (if needed)
- Preparation of SA100 plus required schedules (SA102, SA103, SA105, SA106, SA108, etc.)
- Calculation of income tax, Class 2/4 NIC, payments on account
- Expense reviews & relief claims (e.g., capital allowances, use of home, mileage)
- Submission to HMRC and confirmation
- Post-submission advice: payment dates, coding notices, next steps
Benefits of Using a Self Assessment Accountant
Save time, reduce tax risk, and gain peace of mind:
- Avoid HMRC penalties for late or inaccurate returns
- Ensure all income sources are correctly reported
- Optimise allowances to avoid overpaying tax
- Clear guidance on payments, payments on account & refunds
Self Assessment FAQ's
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Who needs to file a Self Assessment tax return?
You may need to file if you’re self-employed, a company director, a landlord, receive dividends/interest above allowances, have foreign income, capital gains, or other untaxed income.
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What are the key Self Assessment deadlines?
Online returns are generally due by 31 January following the tax year end (5 April). Balancing payments and first payments on account are usually due on the same date.
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Can you help if I’ve missed the deadline or made mistakes before?
Yes. We correct previous returns, appeal penalties where appropriate, and bring your filings up to date while minimising further charges.
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What records do I need to provide for my return?
Typically: income and expense records (invoices/receipts), P60/P45/P11D if employed, bank interest/dividend statements, rental statements, pension/gift aid details, and any capital gains information.
