Employment
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Check estimated Income Tax, employee National Insurance and net employment pay.
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Working for yourself
Understand self-employed tax
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Running a company
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Explore Corporation Tax, VAT, payroll, employer duties and the Construction Industry Scheme.
Property
Understand property tax
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Digital records
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Dates and filing
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Personal tax
PAYE, National Insurance, pensions, savings, gains and Inheritance Tax.
Self-employed
Starting out, expenses, Self Assessment, National Insurance and side-hustle tax.
Business and employers
Companies, VAT, payroll, employer duties, CIS and business taxes.
Property and land
Rental income, property transactions, gains and ownership changes.
International and specialist
Residence, foreign income and gains, crypto and less common tax questions.
Transparent estimates
Popular tax calculators
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Employment
Take-home pay
Estimate Income Tax, employee National Insurance and net employment pay.
Self-employment
Sole-trader tax
Estimate Income Tax and Class 4 National Insurance on straightforward profit.
Companies
Corporation Tax
Estimate a standard company’s Corporation Tax and understand marginal relief.
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Latest guidance
Recently updated tax guidance
The updated date helps you judge recency. Open a guide to check its applicable period and cited sources.
Self Assessment
Records to keep for Self Assessment
What records to keep for Self Assessment, acceptable formats and the ordinary retention periods for different filing positions.
Updated 9 September 2026
Self-employed
Trading Allowance explained
Understand the £1,000 trading allowance, full and partial relief, exclusions and the choice between the allowance and expenses.
Updated 9 September 2026
Income Tax and PAYE
How to claim an Income Tax refund
Choose the correct official HMRC route for a possible Income Tax refund, including PAYE, P800 and Self Assessment cases.
Updated 9 September 2026