National Insurance
GET /v1/uk/ni annualises the published Class 1 thresholds (primary threshold, upper earnings limit, secondary threshold) and returns employee NI, employer NI, and take-home after employee NI.
Indicative only. Directors, the self-employed, and employment allowance are not modelled. Confirm on GOV.UK before filing.
Try it
https://fetch.li/v1/uk/ni?income=45000
Parameters
| Parameter | Required | Description |
|---|---|---|
income |
Yes | Yearly gross salary in pounds |
Demo
GET endpoints work without an API key on the public demo tier (60 calls per hour per IP).
Try it
GET https://fetch.li/v1/uk/ni
Answer
Response