Japan Diesel Fuel Tax Breakdown

Estimate fixed tax, petroleum/clay taxes, and consumption tax from listed retail diesel price.

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Calculation basis and official references

Reviewed on:

Formula basis

Fixed tax = liters × entered rate (−1 selects JPY 15/L). Consumption tax = (retail total − fixed tax) × rate ÷ (1 + rate), plus JPY 2.8/L petroleum-related tax.

Calculation method

This calculator separates a diesel retail total into the entered fixed levy, petroleum-related tax, and consumption tax calculated after removing the diesel fixed levy.

Exclusions and checks required

  • Tax-exempt diesel, prefectural filing and collection, use classification, and transitional rates are outside the calculator.
  • This is a retail-price decomposition and does not reproduce tax accounting across supply-chain stages.

Example input:：40 liters of diesel at JPY 160/L using the code default

retailPerLiterYen
160
liters
40
provisionalPerLiterYen
-1
consumptionTaxPercent
10

The −1 selection uses the implementation’s JPY 15/L constant and does not determine eligibility for tax-exempt diesel.

Official references

FAQ

Who is this calculator for? Japan Diesel Fuel Tax Breakdown

Estimate fixed tax, petroleum/clay taxes, and consumption tax from listed retail diesel price.

What values should I enter?

Applies to: Japan Product and Fuel Taxes

How should I interpret this estimate?

This calculator separates a diesel retail total into the entered fixed levy, petroleum-related tax, and consumption tax calculated after removing the diesel fixed levy.

How to use

  1. Enter your input values and press Calculate.
  2. Review the result and compare it with expected context.
  3. Fixed tax = liters × entered rate (−1 selects JPY 15/L). Consumption tax = (retail total − fixed tax) × rate ÷ (1 + rate), plus JPY 2.8/L petroleum-related tax.

Official references