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Complete Self Assessment
Understand registration, records, filing, payments and common problem areas.
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Deal with property tax
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Respond to HMRC
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Handle tax across borders
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Take-home pay calculator
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Working for yourself
Sole-trader tax
Estimate Income Tax and Class 4 National Insurance on straightforward profit.
Running a company
Corporation Tax
Estimate a standard company’s Corporation Tax and understand marginal relief.
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UKTH is the organisation author and publisher. Important tax claims identify the applicable period and prioritise primary authority.
- 01Primary authority firstGOV.UK, HMRC manuals and legislation are prioritised for rules, rates and deadlines.
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- 03A visible correction routePossible factual errors can be reported and material corrections follow a defined process.
Recently updated
Fresh guidance for real tax tasks
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Income Tax and PAYE
How to read your payslip and tax deductions
Understand gross pay, taxable pay, PAYE Income Tax, National Insurance and other payslip deductions, with practical checks for errors.
Updated 13 October 2026
Making Tax Digital
Making Tax Digital for Income Tax
Check who must use MTD for Income Tax, the staged qualifying-income thresholds and the first mandatory year deadlines.
Updated 10 October 2026
Income Tax and PAYE
Working from home tax relief for employees
Why employees cannot claim working from home relief for 2026/27, how earlier-year claims work, and what employers can still pay tax-free.
Updated 4 October 2026