The CA3916 UK form, also called the U1 form or HMRC U1, is the official 4-page HMRC document used to verify and correct gaps in a UK National Insurance (NI) contributions record. The form contains 216 fillable fields and takes approximately 22 minutes to complete. HMRC uses it to update NI accounts so that individuals can accurately track pension eligibility and claim the correct level of UK state pension.
Who needs this form? Workers who have spent time employed or self-employed in the UK and later move abroad often need the U1 to export their NI contribution periods to an EU or EEA country. UK residents who spot a gap in their NI record on a state pension forecast also use the form to request a correction. Employers and agents acting on behalf of employees may submit the form on their behalf.
To fill in the form correctly, you will need your National Insurance number, dates of your UK employment or self-employment, and any correspondence from HMRC about the gap. If you are also applying for NI credits or a pension, you may wish to review the CA5403 form and the BR1 pension claim form, which are used alongside the CA3916 in many pension enquiries.
FormsPal also provides the HMRC C1 form and the National Insurance form for related UK tax and contribution queries.
| Question | Answer |
|---|---|
| Form Name | CA3916 Form UK (U1 Form) |
| Also Known As | U1 form, HMRC U1, Form U1 |
| Issued By | HMRC (His Majesty's Revenue and Customs) |
| Form Length | 4 pages |
| Fillable? | Yes |
| Fillable fields | 216 |
| Avg. time to fill out | 22 min 6 sec |
| Purpose | Correct National Insurance contribution gaps |
| Other names | u1 form uk pdf, form u1, u1 form online, u1 form |
