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Self Assessment Tax Return
Preparation, review, and electronic filing of your SA100 Self Assessment Tax Return with HMRC. This service is suitable for sole traders, company directors, landlords, higher earners, and individuals with other taxable income, including self-employment income, dividends, interest, and capital gains.
Self Assessment Tax Return
What the fixed fee covers
- Preparation and review of your Self Assessment Tax Return.
- Reporting of relevant income, expenses, dividends, and gains.
- Calculation of tax and National Insurance contributions.
- Calculation of payments on account, where applicable.
- Draft return for your review and approval.
- Electronic HMRC submission and guidance on payment deadlines.
How it works
- 1We provide a checklist of documents required and agree on key deadlines.
- 2You give us the required documents and financial information.
- 3We review your information and clarify any missing details.
- 4We prepare your Self Assessment return and tax calculation.
- 5You review and approve the draft return.
- 6We submit it electronically to HMRC and confirm your tax liability and payment deadlines.
What we need from you
- Income records and sales invoices.
- Bank statements and transaction records.
- Business expenses, invoices, and receipts.
- P60, P45, CIS, and employment records, where applicable.
- Dividend, property, rental, and capital gains details.
- UTR, tax references, and HMRC correspondence.
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FAQs
Self Assessment (SA100): common questions
Yes. Our service is fully online and available across the UK. Documents, approvals, and HMRC submissions are handled electronically.
Depending on your circumstances, you may need to provide employment, self employment, partnership, dividend, interest, pension, property, capital gains, Gift Aid, pension contribution details, and your UTR.
Online returns and tax payments are generally due by 31 January following the end of the tax year. Paper returns are generally due by 31 October.
It depends on your circumstances. You may need to file if you have self employment or partnership income, untaxed income or gains, or receive a notice to file from HMRC.
Yes. We can assist with HMRC registration and filing. We will confirm your tax liability and payment deadlines, while the tax itself is paid directly to HMRC.
From 6 April 2026, sole traders and landlords with qualifying income (total self-employment and property turnover) over £50,000 must keep digital records and send quarterly updates to HMRC using compatible software. The threshold is due to fall to £30,000 from April 2027 and £20,000 from April 2028. Your annual return is still due by 31 January. We can check whether it applies to you and help you get set up.