databutler.dev · /facts — every fact · Verified Facts protocol · /.well-known/facts.json · /changes

National Insurance number

asked for, but not required statement

standing figure · verified 2026-10-04 against the official source

You’ll be asked for your National Insurance number (but you can still register if you do not have one).

key

uk/gov/register-to-vote/ni-number

value

asked for, but not required statement

period

—

effective

— to date

source

https://www.gov.uk/register-to-vote

verified

2026-10-04 — fresh (33 days ago; next check by 2026-11-03)

next expected change

none named (irregular: changed by statute or order on no fixed date)

source checked

2026-11-02 (the newest day the automated check fetched the source page)

hash

sha256:fea324adb7a1ab4df0c5b5cbcc6116c45515a84d71de1de15624e7cb93b1e60c

signature

EdDSA, key db-2026-10 — keys

As JSON

curl -s https://databutler.dev/f/uk/gov/register-to-vote/ni-number?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/uk/gov/register-to-vote/ni-number

{
  "protocol": "verified-facts/0.3",
  "key": "uk/gov/register-to-vote/ni-number",
  "aliases": [
    "uk/gov/vote/ni-number",
    "uk/gov/voter-registration/ni-number",
    "uk/gov/electoral-register/ni-number"
  ],
  "label": "National Insurance number",
  "value": "asked for, but not required",
  "unit": "statement",
  "period": null,
  "effectiveFrom": null,
  "effectiveTo": null,
  "source": "https://www.gov.uk/register-to-vote",
  "quote": "You’ll be asked for your National Insurance number (but you can still register if you do not have one).",
  "verifiedDate": "2026-10-04",
  "nextScheduledRefresh": "2026-11-03",
  "changeCadence": "irregular",
  "nextExpectedChange": null,
  "sourceCheckedAt": "2026-11-02",
  "status": "fresh",
  "ageDays": 33,
  "maxAgeDays": null,
  "hash": "sha256:fea324adb7a1ab4df0c5b5cbcc6116c45515a84d71de1de15624e7cb93b1e60c",
  "signature": {
    "alg": "EdDSA",
    "kid": "db-2026-10",
    "jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..LPEatcOqIv6Hma5u98anABBGKJ6vOp5lDwSnqeNooITNUGQaDLGAHo_Tfi2dqVdrRcdwiGUgZu9g2qOjyCL2DA",
    "keys": "https://databutler.dev/.well-known/jwks.json"
  },
  "publisher": {
    "name": "Data Butler",
    "url": "https://databutler.dev/"
  },
  "cite": {
    "url": "https://databutler.dev/facts/uk/gov/register-to-vote/ni-number",
    "text": "databutler.dev, verified 2026-10-04 against https://www.gov.uk/register-to-vote"
  }
}