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Sign into or set up a personal tax account to check and manage HMRC records, including Income Tax, change of address, Self Assessment and company car tax.
Estimate how much Income Tax and National Insurance you can expect to pay for the current tax year (6 April 2025 to 5 April 2026).
Self Assessment tax returns - deadlines, who must send a tax return, penalties, corrections and returns for someone who has died.
Self Assessment is a system HM Revenue and Customs (HMRC) uses to collect鈥�
You must send a tax return if, in the last tax year (6 April to 5 April),鈥�
You must register for Self Assessment by 5 October if you need to complete鈥�
You can send a tax return by either: submitting an online return sending a鈥�
You must tell HMRC as soon as possible if you believe you no longer need鈥�
HM Revenue and Customs (HMRC) must receive your tax return and any money鈥�
You鈥檒l get a penalty if you need to complete a tax return and you: send鈥�
You can make a change to a tax return after you filed it, for example鈥�
You may be able to get a tax refund (also known as a 鈥榬epayment鈥� or鈥�
If you need help with Self Assessment, you can: appoint someone to fill in鈥�
Use this tool to find out what you need to do to get a tax refund (rebate) if you鈥檝e paid too much Income Tax.
Work out your State Pension age and Pension Credit qualifying age
Personal Allowance, Income Tax rates, bands and thresholds.
Check your Income Tax, Personal Allowance and tax code for the current tax year. Update details of your income from jobs and pensions.
Check how much Income Tax you paid to HM Revenue and Customs (HMRC) last year. Check your P800.
What tax codes are, how they're worked out, and what to do if you think your code is wrong.
You do not pay tax on your savings interest if you're on a low income.
What to do if you need to pay more tax or you're due a refund, including P800 tax calculations from HM Revenue and Customs (HMRC).
Tell HMRC about a change of address for your personal tax affairs, for example PAYE, Income Tax.
Marriage Allowance allows you to transfer some of your Personal Allowance to your husband, wife or civil partner: what you get and how to apply for free.
How to tell HMRC if there's a change to your personal details - address, name, income, marital status, gender
When you start repaying your student loan, your monthly repayments, what to do if you have 2 jobs or are self-employed, how to get a refund if you've overpaid.
Tax free saving for your first home and later life: what is a LISA, who can apply, 25% government bonus, withdrawal charges.
Pay your Simple Assessment bill. Check the tax calculation from HM Revenue and Customs (HMRC) and pay any tax you owe.
How you're taxed on dividend payments and how your income affects the amount of tax to pay
Claiming tax relief on expenses you have to pay for your work, like uniforms, tools, travel and working from home costs.
Use HM Revenue and Customs鈥� (HMRC) tax checker to get an estimate of how much Income Tax you should have paid in a previous tax year.
Don鈥檛 include personal or financial information like your National Insurance number or credit card details.
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