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

Initial late filing penalty

100 GBP

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

an initial £100 penalty
key
uk/gov/self-assessment/late-filing-penalty
value
100 GBP
period
—
effective
— to date
source
https://www.gov.uk/self-assessment-tax-returns/penalties
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)
scope
UK Self Assessment for the 2025-26 tax year (6 April 2025 to 5 April 2026); dates roll forward each year.
hash
sha256:65d57a413696ea94a7e5cdabf0aa0d77105be8cd94302e4e0060d8e6b1d84469
signature
EdDSA, key db-2026-10 — keys

As JSON

curl -s https://databutler.dev/f/uk/gov/self-assessment/late-filing-penalty?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/uk/gov/self-assessment/late-filing-penalty

{
  "protocol": "verified-facts/0.3",
  "key": "uk/gov/self-assessment/late-filing-penalty",
  "aliases": [
    "uk/gov/tax-return/late-filing-penalty",
    "uk/gov/sa/late-filing-penalty",
    "uk/gov/self-assessment-deadline/late-filing-penalty",
    "uk/gov/mtd/late-filing-penalty",
    "uk/gov/making-tax-digital/late-filing-penalty"
  ],
  "label": "Initial late filing penalty",
  "value": 100,
  "unit": "GBP",
  "period": null,
  "effectiveFrom": null,
  "effectiveTo": null,
  "source": "https://www.gov.uk/self-assessment-tax-returns/penalties",
  "quote": "an initial £100 penalty",
  "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": "sha256:65d57a413696ea94a7e5cdabf0aa0d77105be8cd94302e4e0060d8e6b1d84469",
  "signature": {
    "alg": "EdDSA",
    "kid": "db-2026-10",
    "jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..aW5VUF4c-b1BCQxpUxZc9fQ99OJ96UyJdDprrkY4TxMLHgrjWf_hhSMiS2LxgBxjAWzQI4HTRYaPxDUzKAwOAg",
    "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/late-filing-penalty",
    "text": "databutler.dev, verified 2026-10-04 against https://www.gov.uk/self-assessment-tax-returns/penalties"
  }
}