Tax & Compliance
Self Assessment, simplified
Your tax return, prepared all year long.
Stop dreading January. Accounted keeps your books in order throughout the year, prepares your Self Assessment automatically, and submits it direct to HMRC. Income Tax, National Insurance, and all allowable expenses — calculated, checked, and filed.
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How It Works
Books kept all year
Penny categorises your transactions, matches receipts, and tracks expenses throughout the year. No year-end data entry marathon.
Year-end summary prepared
When the tax year ends, Accounted generates your full tax return summary — income, expenses, profit, tax due, and NICs.
Review and file
Check the numbers, click submit, and your Self Assessment goes direct to HMRC. Confirmation receipt stored in your account.
Why Self Assessment?
No year-end scramble
Your books are up to date all year. When 5 April comes around, your tax return is practically ready. No shoeboxes of receipts.
All calculations automatic
Income Tax, Class 2 and Class 4 National Insurance, and all allowable expenses calculated automatically from your categorised transactions.
Direct HMRC submission
Submit your Self Assessment direct to HMRC from Accounted. Digital handshake with fraud prevention headers. HMRC-recognised software.
Includes all income types
Self-employment income, rental income, interest, and dividends. Accounted handles multiple income sources on a single return.
Confirmation receipt stored
Every HMRC submission gets a confirmation receipt with a unique reference number. Stored securely in your account for your records.
Automated year-end preparation
Accounted builds your Self Assessment throughout the year, not just at year end. Every categorised transaction, matched receipt, and recorded expense feeds into your tax return automatically. When the tax year ends on 5 April, the heavy lifting is already done.
- Income and expenses totalled automatically from categorised transactions
- Allowable expenses identified and grouped by HMRC category
- CIS deductions, mileage claims, and capital allowances all included
- Tax liability calculated in real time so there are no surprises
- Year-end review checklist flags anything that needs attention
Submit to HMRC with confidence
Accounted is HMRC-recognised software for Self Assessment. Your tax return is submitted digitally with all required fraud prevention headers. You get a confirmation receipt instantly, and the full submission is stored in your account.
- HMRC-recognised software with full digital handshake
- Fraud prevention headers sent automatically with every submission
- Confirmation receipt with unique HMRC reference number
- Full submission history stored securely in your account
- Amend and resubmit if you spot an error after filing
Frequently Asked Questions
Yes. Accounted is HMRC-recognised software. Your Self Assessment is submitted digitally direct to HMRC with all required fraud prevention headers. You receive a confirmation receipt with a unique reference number.
The Self Assessment deadline for online filing is 31 January following the end of the tax year. For example, the 2025/26 tax year (6 April 2025 to 5 April 2026) must be filed by 31 January 2027. Accounted sends reminders well in advance.
Accounted handles multiple income sources on a single Self Assessment return — self-employment income, rental income, interest, dividends, and employment income. Each source is reported in the correct section of the return.
Yes. Class 2 and Class 4 National Insurance contributions are calculated automatically based on your self-employment profits. The amounts are included in your total tax liability alongside Income Tax.
Accounted supports both traditional annual Self Assessment and the new MTD for Income Tax quarterly updates. When MTD becomes mandatory for you, Accounted handles the quarterly submissions and end-of-period statements alongside your annual return.
Yes. If you spot an error after filing, you can amend and resubmit your Self Assessment through Accounted. HMRC allows amendments up to 12 months after the filing deadline. The amended return replaces the original.
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