databutler.dev · /facts — every fact · Verified Facts protocol · /.well-known/facts.json · /changes
2027-01-31 date
standing figure · verified 2026-10-04 against the official source
You need to pay your Self Assessment tax by 11:59pm on 31 January 2027
uk/gov/self-assessment/payment-deadlinesha256:65b3d2aa90ba4d96ef0a3f46fe111aae394c0697d925f4aa94cf6d379f3f8f55db-2026-10 — keyscurl -s https://databutler.dev/f/uk/gov/self-assessment/payment-deadline?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/uk/gov/self-assessment/payment-deadline
{
"protocol": "verified-facts/0.3",
"key": "uk/gov/self-assessment/payment-deadline",
"aliases": [
"uk/gov/tax-return/payment-deadline",
"uk/gov/sa/payment-deadline",
"uk/gov/self-assessment-deadline/payment-deadline",
"uk/gov/mtd/payment-deadline",
"uk/gov/making-tax-digital/payment-deadline"
],
"label": "Payment deadline (2025-26)",
"value": "2027-01-31",
"unit": "date",
"period": null,
"effectiveFrom": null,
"effectiveTo": null,
"source": "https://www.gov.uk/self-assessment-tax-returns/deadlines",
"quote": "You need to pay your Self Assessment tax by 11:59pm on 31 January 2027",
"verifiedDate": "2026-10-04",
"nextScheduledRefresh": "2026-11-03",
"changeCadence": "irregular",
"nextExpectedChange": null,
"sourceCheckedAt": "2026-11-02",
"status": "fresh",
"ageDays": 33,
"maxAgeDays": null,
"scope": "UK Self Assessment for the 2025-26 tax year (6 April 2025 to 5 April 2026); dates roll forward each year.",
"hash": "sha256:65b3d2aa90ba4d96ef0a3f46fe111aae394c0697d925f4aa94cf6d379f3f8f55",
"signature": {
"alg": "EdDSA",
"kid": "db-2026-10",
"jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..T5c0eqKVFhYhQmog3NZSH2gNi-vBFyqAwlxse6cOR9aq5TgdfAPPfxSKocC46p8WpIkD-jT1KMl9iVwmewEHAQ",
"keys": "https://databutler.dev/.well-known/jwks.json"
},
"publisher": {
"name": "Data Butler",
"url": "https://databutler.dev/"
},
"cite": {
"url": "https://databutler.dev/facts/uk/gov/self-assessment/payment-deadline",
"text": "databutler.dev, verified 2026-10-04 against https://www.gov.uk/self-assessment-tax-returns/deadlines"
}
}