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IFTA Fuel Tax Estimate Calculator

Estimate a quarterly IFTA net fuel-tax balance from jurisdiction miles, fuel purchases, fleet MPG, and entered tax rates.

Inputs

Reporting-period MPG and jurisdiction entries

Range: at least 0.01

Enter total fleet miles divided by total fuel consumed for the same reporting period, vehicle group, and fuel type. Use the basis required for your records; no sample MPG is assumed.

Jurisdiction miles, purchases, and rates

Result

Fuel gallons calculated from miles and fleet MPG
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Estimated net tax balance
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Estimated tax on fuel used
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Estimated credit for tax-paid purchases
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Miles entered for IFTA fuel-tax calculation
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Tax-paid fuel gallons entered
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Estimate formulas

Fuel gallons calculated from miles and fleet MPG
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Estimated tax on fuel used
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Estimated credit for tax-paid purchases
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Estimated net tax balance
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Estimates depend on the inputs and assumptions shown on each tool. Verify important figures against your records, contracts, and current official requirements.