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Use form SA1 to register for Self Assessment for any reason other than self-employment.
Use form MATCF to apply for Marriage Allowance to transfer 10% of your Personal Allowance to your husband, wife or civil partner.
Check if you need to use Making Tax Digital for Income Tax to report your self-employment and property income.
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.
How to claim back tax that HMRC owes you on a small pension lump sum that you've received in the current tax year (P53).
Find out if you’ll need to repay the Winter Fuel Payment or the Pension Age Winter Heating Payment and how HMRC will collect it.
If you're an agent, use the online service to sign up your client for Making Tax Digital for Income Tax.
Check a list of recent phone contacts from HMRC to help you decide if a phone call you've received is a scam.
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 authorise software and check your accounting period before you use your chosen software.
Sign in, manage and use your online account to receive payments from parents.
How to check if you’ve paid the right amount of tax, if your pay is not what you expected.
How to create and store digital records of your self-employment and property income and expenses for Making Tax Digital for Income Tax.
The Valuation Office Agency (VOA) explains how domestic properties are valued for Council Tax bands.
Check how the government calculates and spends your Income Tax and National Insurance contributions within your Annual Tax Summary.
Find out how tax on dividend income and interest from savings is worked out by HMRC.
How and when to send quarterly updates and what’s included in them.
Use form CA5403 to request a copy of your National Insurance number by post.
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.
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).
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