tag:www.gov.uk,2005:/search/guidance-and-regulation Guidance and regulation 2024-02-05T00:00:00+00:00 HM Government tag:www.gov.uk,2005:/guidance/apply-for-refund-of-class-1-national-insurance-contributions 2024-02-05T00:00:00+00:00 Apply for a refund of Class 1 National Insurance contributions If you've been sent a letter from HMRC, apply for a refund of Class 1 National Insurance contributions using form CA4361. tag:www.gov.uk,2005:/guidance/widening-access-training-scheme-refunds-for-nhs-trust-workers 2020-02-25T10:04:28+00:00 Income Tax and National Insurance contributions for NHS WATS 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.