Self-Assessment Return Quality Review: Spot Errors Before Filing

Your return is drafted and your finger is over the submit button. Before you press it, hand over your declared figures, total income, profit, gains, reliefs and tax already paid, and it reviews the lot for errors, omissions and missed reliefs. The aim is catching the mistake now rather than in an enquiry letter eighteen months later.

I have drafted my UK Self-Assessment tax return for {TAX_YEAR} and want a rigorous pre-submission review. My return includes the following declared figures: Total income: £{TOTAL_INCOME}. Business profit (if applicable): £{BUSINESS_PROFIT}. Capital gains: £{CAPITAL_GAINS}. Deductions and reliefs claimed: {DEDUCTIONS_LIST}. Tax paid at source (PAYE, deductions): £{TAX_ALREADY_PAID}. Tax calculated as owing or refundable: £{TAX_RESULT}. Act as an experienced UK tax adviser and critique this return. Check for: mathematical consistency, correctly applied rates and thresholds for {TAX_YEAR}, missing supplementary pages, under-claimed reliefs (pension contributions, trading allowance, overlap relief), incorrectly claimed deductions, Payment on Account implications, and any figures that would likely trigger an HMRC compliance check. Provide a prioritised list of issues and recommended corrections.