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Find and use tools and calculators that will help you work out your tax.
Get help with Self Assessment by using online tools and guidance, and watching HMRC YouTube videos.
Off-payroll working rules for clients, workers (contractors) and their intermediaries.
Find software suppliers for tax returns, supplementary pages and attachments.
Register a new partnership for Self Assessment using form SA400.
Rates, allowances and limits for National Insurance.
Find out which mortgage providers and lenders accept printed tax summaries.
Find information on completing the Capital Gains section of your Self Assessment tax return.
Supplementary guidance on how to check tax calculations or work out the trading profits of a business for Self Assessment tax return.
Learn more about your responsibilities if you’re running a small business including registration, tax returns, record keeping, tax bills and payments.
Find out how all childminders can continue to get tax relief for wear and tear, household costs, food and drink, and other business expenses.
When to apply the off-payroll working rules (IR35) if you receive services from a worker through their intermediary.
Find out if you could claim the cost of training as an allowable business expense if you are a self-employed individual.
Check how much you were paid for SEISS and how to repay an overpaid grant.
How Income Tax and National Insurance contributions rules work if you’re a share fisher.
How to comply with the reformed off-payroll working rules (IR35), and avoid common mistakes.
Find out what to do if you need to pay back some or all of a SEISS grant.
How payments to individuals and businesses who use the domestic and non-domestic Renewable Heat Incentive schemes are taxed.
Reporting and paying tax on payments received for use of image rights, including payments made to an image rights company.
If you operate as a business, find out if you need to include a COVID-19 grant or support payment on your tax return.
Do not include personal or financial information like your National Insurance number or credit card details.
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