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Find out how much you need to put aside for your Self Assessment tax bill if you're self-employed by using HM Revenue and Customs' (HMRC's) self-employed tax calculator.
Update your details, find out how much you’ll get paid and tell HMRC about a change in your circumstances
How to claim R&D expenditure credit (RDEC) for Corporation Tax relief on your company's R&D, if you’re a large company or small and medium-sized enterprise.
Use checklist TC602(SN) to help make sure the information on your tax credits award notice is correct.
How to download and access the HMRC app on a mobile device to get information about your tax, National Insurance, tax credits and benefits.
If both the UK and another country charge Inheritance Tax, you could avoid or reclaim the tax through a double taxation convention.
You need to move to Universal Credit if you’ve received a Migration Notice letter, as one or more of your benefits will be ending soon.
Tax credits if you live abroad, go travelling, are a cross-border worker or subject to immigration control
Correct a mistake on your tax credit claim form - getting a new award notice
How to start a tax credits claim, when to claim, joint claims, backdate a claim
Find out how to apply for authority to give an employee foreign tax credit relief if you're a UK employer and you send an employee to work abroad.
Find out if simplified expenses suits your business. Compare what expenses you can claim using simplified expenses with what you can claim by working out the actual costs.
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.
Find statistics that give information on the number value and cost to the Exchequer, for Research and Development Tax Credits and Patent Box Tax Reliefs.
High Income Child Benefit Charge - check if you're affected, how and when to pay this tax charge, opt out and restart Child Benefit payments.
How to work out your taxable capital gain or loss if you are not resident in the UK and are making direct or indirect disposals of UK property or land.
As an employer, if you provide company cars or fuel for your employees' private use, you'll need to work out the taxable value so you can report this to HMRC
Find out what benefits and financial support you may be able to get.
You can reduce your Corporation Tax bill through Marginal Relief from 1 April 2023 if your company’s profits are lower than £250,000.
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.
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