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

At a continuing inspection (petrol, LPG, clean-diesel incl. hybrids meeting 令和2年度燃費基準 and the emissions condition), the eco (本則) rate applies at 令和12年度燃費基準 80% or more; below 80% the 当分の間税率 (standard / 13-year / 18-year) applies

令和12年度燃費基準80%以上 → 本則税率; 80%未満 → 当分の間税率 rule

from 2026-05-01 · verified 2026-10-24 against the official source · next expected change 2027-04-01

○2026年５月1日から2028年４月30日までに乗用車（ガソリン車・LPG車・クリーンディーゼル車（ハイブリッド車を含む））の継続検査、中古車の新規登録等を行う場合 … ②令和12年度燃費基準80％以上である → 本則税率 … ③令和12年度燃費基準80％未満である → 当分の間税率

key: jp/weight-tax/eco-rate-rule-at-inspection
value: 令和12年度燃費基準80%以上 → 本則税率; 80%未満 → 当分の間税率 rule
period: —
effective: 2026-05-01 to 2028-04-30
source: https://www.mlit.go.jp/jidosha/content/001884517.pdf
verified: 2026-10-24 — fresh (13 days ago; next check by 2026-11-28)
next expected change: 2027-04-01 (annual: a fixed day each year)
source checked: 2026-11-02 (the newest day the automated check fetched the source page)
scope: 自家用 passenger cars (登録車, per 0.5 t of 車両重量, rounded up) and 検査対象軽自動車 (flat), paid at 継続検査 (車検) and used-car registration; エコカー = 本則税率 (eligible cars, 令和12年度燃費基準80%以上 etc.), 右以外 = 当分の間税率 for cars under 13 years, then the 13年経過 and 18年経過 rates. Table valid 2026-05-01 to 2028-04-30.
hash: sha256:c87c153df739b87b62fe5d2a104c857250f0e27d6757b8741730c8d1e3788a07
signature: EdDSA, key db-2026-10 — keys

As JSON

curl -s https://databutler.dev/f/jp/weight-tax/eco-rate-rule-at-inspection?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/jp/weight-tax/eco-rate-rule-at-inspection

{
  "protocol": "verified-facts/0.3",
  "key": "jp/weight-tax/eco-rate-rule-at-inspection",
  "label": "At a continuing inspection (petrol, LPG, clean-diesel incl. hybrids meeting 令和2年度燃費基準 and the emissions condition), the eco (本則) rate applies at 令和12年度燃費基準 80% or more; below 80% the 当分の間税率 (standard / 13-year / 18-year) applies",
  "value": "令和12年度燃費基準80%以上 → 本則税率; 80%未満 → 当分の間税率",
  "unit": "rule",
  "period": null,
  "effectiveFrom": "2026-05-01",
  "effectiveTo": "2028-04-30",
  "source": "https://www.mlit.go.jp/jidosha/content/001884517.pdf",
  "quote": "○2026年５月1日から2028年４月30日までに乗用車（ガソリン車・LPG車・クリーンディーゼル車（ハイブリッド車を含む））の継続検査、中古車の新規登録等を行う場合 … ②令和12年度燃費基準80％以上である → 本則税率 … ③令和12年度燃費基準80％未満である → 当分の間税率",
  "verifiedDate": "2026-10-24",
  "nextScheduledRefresh": "2026-11-28",
  "changeCadence": "annual",
  "nextExpectedChange": "2027-04-01",
  "sourceCheckedAt": "2026-11-02",
  "status": "fresh",
  "ageDays": 13,
  "maxAgeDays": null,
  "scope": "自家用 passenger cars (登録車, per 0.5 t of 車両重量, rounded up) and 検査対象軽自動車 (flat), paid at 継続検査 (車検) and used-car registration; エコカー = 本則税率 (eligible cars, 令和12年度燃費基準80%以上 etc.), 右以外 = 当分の間税率 for cars under 13 years, then the 13年経過 and 18年経過 rates. Table valid 2026-05-01 to 2028-04-30.",
  "hash": "sha256:c87c153df739b87b62fe5d2a104c857250f0e27d6757b8741730c8d1e3788a07",
  "signature": {
    "alg": "EdDSA",
    "kid": "db-2026-10",
    "jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..V4v-6j06wVtwSa70zFVG5QWhYIJPWt760FzAwXgOLl1HdG7V0PnQ9pJC8lwWwwCrqJLFwxJQItze4R1gH3DwCQ",
    "keys": "https://databutler.dev/.well-known/jwks.json"
  },
  "publisher": {
    "name": "Data Butler",
    "url": "https://databutler.dev/"
  },
  "cite": {
    "url": "https://databutler.dev/facts/jp/weight-tax/eco-rate-rule-at-inspection",
    "text": "databutler.dev, verified 2026-10-24 against https://www.mlit.go.jp/jidosha/content/001884517.pdf"
  }
}