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If you've been sent a letter from HMRC, apply for a refund of Class 1 National Insurance contributions using form CA4361.
Find information about paying National Insurance contributions for company directors in current and previous tax years.
Check if you should pay National Insurance in the UK or social security contributions in the EU, Gibraltar Iceland, Liechtenstein, Norway, or Switzerland.
How spouses and civil partners of armed forces personnel posted overseas can fill gaps in their National Insurance record.
Find out if you can claim relief from employer Class 1 National Insurance contributions when you employ someone in a UK Freeport or Investment Zone special tax site.
Learn more about your responsibilities as a company director.
Use these booklets to manually calculate contributions for employees who must pay National Insurance.
What you need to do after getting a letter from HMRC following a correction to your National Insurance contributions after 6 November 2022.
Find guidance about Income Tax and National Insurance contributions for the NHS widening access training scheme (WATS) if you are an NHS employee or employer.
Check the availability and any issues affecting the approval and set up of your agent services account if you are not based in the UK.
Find out about paying Income Tax and National Insurance contributions if you arrive in the UK but are still working for an employer in Ukraine.
Find out how much Income Tax and National Insurance contributions to pay on sporting testimonial income.
This leaflet explains the impact of taxes, National Insurance contributions, tax credits and State Pensions for lesbian, gay, bisexual and transgender customers.
Tax avoidance schemes that HMRC believe to be live and widely available, to help those using them to avoid tax.
This helpsheet is about HMRC's voluntary arrangements service which helps and supports businesses in temporary financial difficulties.
An A to Z of countries Social Security agreements with contribution provisions and the corresponding Statutory Instrument numbers.
Tax avoidance schemes that HM Revenue and Customs believe to be live and widely available, to help those using them to avoid tax.
Apply to support your clients with their tax responsibilities and get quicker access to HMRC services on their behalf.
An overview of announcements made by HM Revenue and Customs (HMRC) for Budget 2014.
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