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Use the PAYE tax calculator to work out how much Income Tax an employee needs to pay, in a pay period that is in the current tax year.
Use this calculator to work out employee National Insurance contributions for the current tax year, if you're an employee, employer, or a software developer.
How to check if you’ve paid the right amount of tax, if your pay is not what you expected.
Check how the government calculates and spends your Income Tax and National Insurance contributions within your Annual Tax Summary.
What you need to do if you've submitted a declaration using the Customs Declaration Service and need to send supporting documents or respond to HMRC queries.
Use these rates and allowances for Capital Gains Tax to work out your overall gains above your tax-free allowance, known as the annual exempt amount.
Use form CA5403 to request a copy of your National Insurance number by post.
How to calculate your employee's Statutory Sick Pay if you cannot use the GOV.UK calculator.
Use our online service to apply to pay voluntary National Insurance contributions for periods abroad.
Check if you can get an exemption from Making Tax Digital for Income Tax and how it applies.
The Valuation Office Agency (VOA) explains how domestic properties are valued for Council Tax bands.
Use form MATCF to apply for Marriage Allowance to transfer 10% of your Personal Allowance to your husband, wife or civil partner.
Find out how tax on dividend income and interest from savings is worked out by HMRC.
Use the online service or postal form CF411 to apply for National Insurance Home Responsibilities Protection, or to transfer it from a spouse or partner.
How to claim a refund in the current tax year if you are not getting taxable benefits or a pension from your employer and you've not started a new job (P50).
Find out the scale rate expenses for accommodation and subsistence paid to employees who travel outside of the UK.
Find out how to file your accounts and Company Tax Return if you previously used the HMRC online service that closed on 31 March 2026.
If you're an agent, use the online service to sign up your client for Making Tax Digital for Income Tax.
Apply for a refund of the higher rates of Stamp Duty Land Tax (SDLT16) for additional properties if you sell what was previously your main home.
Off-payroll working rules for clients, workers (contractors) and their intermediaries.
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