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Find out how much you need to put aside for your Self Assessment tax bill by using HM Revenue and Customs' (HMRC's) Self Assessment tax calculator.
Capital Gains Tax when you sell a property that's not your home: work out your gain and pay your tax on buy-to-let, business, agricultural and inherited properties
When your company or organisation pays Corporation Tax - paying, reporting and dormant companies
Marriage Allowance allows you to transfer some of your Personal Allowance to your husband, wife or civil partner: what you need, how to apply for free online.
Apply to get an EORI number to move goods between Great Britain, Northern Ireland or the Isle of Man, and other countries.
Use the online service (CH459) to tell the Child Benefit Office that your child aged 16 or over has left approved education or training.
Home Responsibilities Protection ran between 1978 and 2010 to help protect your State Pension: National Insurance credits, what you'll get, eligibility and applying.
Complain to HMRC about the service you received: what you need to do, what happens when you complain, disagree with a decision
Class 1 National Insurance (NI) contribution rates for the current tax year, what NI category letters mean.
Maternity or Paternity Leave or Pay, or Maternity Allowance for parents
Plan your retirement income - State Pension, improve your pension, pay National Insurance, check your State Pension age
Estimate your business rates by multiplying the rateable value of your business property by a multiplier value set by the government.
Check whether you need to report and pay any tax on income you make apart from your main job or earnings.
Income Tax is a tax you pay on your earnings - find out about what it is, how you pay and how to check you're paying the right amount using HMRC's tax calculator.
Workplace pensions and automatic enrolment - how you're affected, how pensions are protected, what happens if you move job or go on maternity leave and how to opt out
How to open a Junior ISA for your child - including managing and adding money to an account.
Find out how to claim a refund on the National Insurance (NI) you’ve paid to HM Revenue and Customs (HMRC).
Business expenses you can claim if you're self-employed
Make a debit or credit card payment with HMRC to pay your tax bill, including Self Assessment, PAYE, VAT and Corporation Tax.
Your Statutory Paternity Pay and Leave - eligibility, what you get, how to claim.
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