
Self Assessment Tax Return Preparation & Filing
Self Assessment tax return preparation and filing gives you confidence that your income, expenses, and claims are reported correctly to HMRC. We pull your figures together, check what can be claimed, calculate your tax position, and submit your return on time, with clear explanations of what you owe and when.
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What this service covers
Self Assessment can be straightforward or messy, especially when you have multiple income streams. This service is built to make it accurate, compliant, and easy to sign off.
- Collection and review of your income sources (for example self-employment, director dividends, property income, interest, or capital gains)
- Review of allowable expenses and business use adjustments
- Checks for common reliefs and allowances (where applicable), such as pension contributions and Gift Aid
- Capital gains and property reporting support where relevant
- Tax calculation, Payments on Account review, and what to budget for
- Preparation and submission of your Self Assessment return to HMRC
- Plain English summary of what was filed and the key dates ahead
Who this is for
This service suits people who want their return handled properly without spending evenings second guessing rules and receipts. It is a good fit if you are a sole trader, freelancer, contractor, or company director who also has other income to report. It is also useful if this is your first return, your income has changed, or you want to be confident you are claiming what you are entitled to.
How it works
We start by confirming which returns and schedules are needed, then provide a clear list of what to share and in what format. You send your records, we review and ask focused questions where something is unclear, then we draft the return and share the figures for approval. Once you confirm, we file with HMRC and provide a summary of the outcome and deadlines.
After filing
You will receive a breakdown of your tax due, the payment deadlines, and any expected Payments on Account so you can plan cash flow. If anything looks unusual compared with previous years, we will flag it and explain why. If you want ongoing support, we can also help you set up a smoother record keeping process for next year’s return.
Frequently Asked Questions
What information do you need to prepare my Self Assessment return?
Can you handle a return with multiple income sources?
When should I get started for the 31 January deadline?
Will you tell me what expenses and allowances I can claim?
What if I have already filed, received a penalty, or got a letter from HMRC?
Related Services
Complete your experience with these services
- ViewSelf Assessment Income, Gains & Expenses Review
- ViewSelf Assessment Penalty Avoidance Support
- ViewEarly Self Assessment Filing (Plan Your Tax Bill)
- ViewPaper Self Assessment Return Support (31 October)
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- ViewSelf Assessment Deadline Management (31 January)
- ViewSelf Assessment After an HMRC Notice to File
- ViewSelf Assessment for Additional Income Sources
- ViewSelf Assessment for Child Benefit High Income Charge
- ViewSelf Assessment for High Earners (Over £100k)
- ViewSelf Assessment for Landlords (Rental Income)
- ViewSelf Assessment for Self-Employed Individuals
- ViewSelf Assessment for Company Directors
Related Blog Posts

Can I Pay My Self Assessment Bill Through My PAYE Tax Code?
Yes—HMRC may collect Self Assessment through your PAYE tax code if you meet the rules, including the £3,000 limit and deadlines.
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Payments on Account: How They’re Calculated, Who Pays, and the Due Dates
Payments on account explained: how HMRC calculates them, who pays, due dates (31 Jan & 31 Jul), and when you may not have to pay.
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How to Correct a Self Assessment Tax Return After Submission
How to amend a UK Self Assessment tax return after filing, including the 72-hour online wait and the 12-month correction window.
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Do I Still File a Self Assessment Return if I Don’t Know My Profit Yet?
Yes—HMRC says you must still file. Use provisional figures, tell HMRC, then amend your return once your final profit is known.
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MTD for VAT Penalties: What HMRC Says About Filing Without Functional Compatible Software
HMRC says it may charge a penalty of up to £400 for every VAT return filed without functional compatible software under MTD for VAT.
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