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Register your trust online if you’re a trustee.
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).
Use these rates and thresholds when you operate your payroll or provide expenses and benefits to your employees.
Find out how to get a certificate of residence as an individual, company or organisation so you do not get taxed twice on foreign income.
Check if you need to use Making Tax Digital for Income Tax to report your self-employment and property income.
Find out how to appeal an individual or partnership Self Assessment penalty.
How to work out your adjusted net income and the circumstances when it can affect your tax liability.
Get a refund of your Construction Industry Scheme (CIS) deductions if you’ve paid too much tax or National Insurance.
Find recognised commercial software suppliers and software you can use to file your Company Tax Return and any supplementary pages online.
Use form SA1 to register for Self Assessment for any reason other than self-employment.
How to set up a new Council Tax account on a property you have recently moved into.
Check if and when you need to register for an agent services account to interact with HMRC on behalf of your clients as a tax adviser.
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 tool to help you find software that meets your needs for Making Tax Digital for Income Tax.
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.
Use this list to check if you can claim a fixed amount of tax relief (also known as 'flat rate expenses') for your work expenses if you're an employee.
Guidance for sole traders, landlords, and agents about how to use HMRC's new way to do Self Assessment.
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.
Do not include personal or financial information like your National Insurance number or credit card details.
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