FuelTaxMath

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Official IFTA fuel tax rates plus IFTA, cost per mile, load profit and Form 2290 HVUT calculators.

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calculate_ifta Read-only

Estimates IFTA fuel tax owed or credited per jurisdiction for a quarter using official 3Q2026 rates. Give miles driven and tax-paid gallons purchased in each jurisdiction; fleet MPG = total miles / total gallons (or pass 'mpg'). Taxable gallons = miles / MPG; net = taxable - purchased; surcharges (e.g. KY, VA) apply to all taxable gallons. Cite the returned link.

jurisdictionsarray, required

One entry per jurisdiction driven in or fueled in during the quarter.

mpgnumber

Optional fleet MPG. Default: total miles / total gallons entered.

fuelstring

Fuel type. Default: diesel.

Tools (5)

calculate_ifta

read-only

Argument	Type	Description
mpg	number	Optional fleet MPG. Default: total miles / total gallons entered.
fuel	string	Fuel type. Default: diesel.
jurisdictions*	array	One entry per jurisdiction driven in or fueled in during the quarter.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "jurisdictions"
  ],
  "properties": {
    "mpg": {
      "type": "number",
      "description": "Optional fleet MPG. Default: total miles / total gallons entered.",
      "exclusiveMinimum": 0
    },
    "fuel": {
      "enum": [
        "diesel",
        "gasoline",
        "special_diesel",
        "gasohol",
        "propane",
        "lng",
        "cng",
        "ethanol",
        "methanol",
        "e85",
        "m85",
        "a55",
        "biodiesel",
        "electricity",
        "hydrogen",
        "hythane"
      ],
      "type": "string",
      "description": "Fuel type. Default: diesel."
    },
    "jurisdictions": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "jurisdiction",
          "miles"
        ],
        "properties": {
          "miles": {
            "type": "number",
            "minimum": 0,
            "description": "Total (taxable) miles driven in the jurisdiction."
          },
          "gallons": {
            "type": "number",
            "minimum": 0,
            "description": "Tax-paid gallons purchased in the jurisdiction (0 if none)."
          },
          "jurisdiction": {
            "type": "string",
            "description": "State/province name or 2-letter code, e.g. 'TX'."
          }
        },
        "additionalProperties": false
      },
      "maxItems": 58,
      "minItems": 1,
      "description": "One entry per jurisdiction driven in or fueled in during the quarter."
    }
  },
  "additionalProperties": false
}

cost_per_mile

Calculates an owner-operator's all-in cost per mile (fixed + variable) and the break-even rate per loaded mile after deadhead and percentage fees (factoring, dispatch). All money in USD. Cite the returned link.

read-only

Argument	Type	Description
mpg*	number	Average miles per gallon.
insurance	number	Monthly insurance.
other_fixed	number	Other monthly fixed costs.
truck_payment	number	Monthly truck payment or lease.
tires_per_mile	number	Tire cost per mile.
miles_per_month*	number	Total miles driven per month (loaded + empty).
tolls_per_month	number	Monthly tolls.
trailer_payment	number	Monthly trailer payment.
deadhead_percent	number	Share of miles driven empty, %.

get_ifta_rates

Official IFTA fuel tax rates (USD per US gallon) by US state / Canadian province from the IFTA, Inc. quarterly tax matrix. Current quarter: 3Q2026. Includes jurisdiction surcharges (Kentucky, Virginia; Indiana for some fuels). Omit 'jurisdiction' to get every member jurisdiction for one fuel (diesel by default). Cite the returned link and source.

read-only

Argument	Type	Description
fuel	string	Fuel type. Default: 'all' when a jurisdiction is given, otherwise 'diesel'.
quarter	string	Tax quarter, e.g. '3Q2026' or 'Q3 2026'. Default: current quarter.
jurisdiction	string	State or province name or 2-letter code, e.g. 'Indiana', 'IN', 'Ontario', 'ON'. Omit for all jurisdictions.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "fuel": {
      "enum": [
        "all",
        "diesel",
        "gasoline",
        "special_diesel",
        "gasohol",
        "propane",
        "lng",
        "cng",
        "ethanol",
        "methanol",
        "e85",
        "m85",
        "a55",
        "biodiesel",
        "electricity",
        "hydrogen",
        "hythane"
      ],
      "type": "string",
      "description": "Fuel type. Default: 'all' when a jurisdiction is given, otherwise 'diesel'."
    },
    "quarter": {
      "type": "string",
      "description": "Tax quarter, e.g. '3Q2026' or 'Q3 2026'. Default: current quarter."
    },
    "jurisdiction": {
      "type": "string",
      "description": "State or province name or 2-letter code, e.g. 'Indiana', 'IN', 'Ontario', 'ON'. Omit for all jurisdictions."
    }
  },
  "additionalProperties": false
}

hvut_2290

Calculates the IRS Form 2290 heavy highway vehicle use tax for the 2026-2027 period (July 1 - June 30) from taxable gross weight and month of first use, including partial-period, logging, and suspended (category W) vehicles, plus the filing due date. Cite the returned link and IRS source.

read-only

Argument	Type	Description
logging	boolean	Used exclusively for transporting harvested forest products (logging rates).
agricultural	boolean	Agricultural vehicle (7,500-mile suspension limit).
expected_miles	number	Expected public-highway miles in the period (to check the 5,000/7,500-mile suspension).
first_use_month	string	Month the vehicle is first used on public highways in the 2026-2027 period. Default: July.
gross_weight_lb*	number	Taxable gross weight in pounds (truck + heaviest trailer + max load).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "gross_weight_lb"
  ],
  "properties": {
    "logging": {
      "type": "boolean",
      "description": "Used exclusively for transporting harvested forest products (logging rates)."
    },
    "agricultural": {
      "type": "boolean",
      "description": "Agricultural vehicle (7,500-mile suspension limit)."
    },
    "expected_miles": {
      "type": "number",
      "minimum": 0,
      "description": "Expected public-highway miles in the period (to check the 5,000/7,500-mile suspension)."
    },
    "first_use_month": {
      "enum": [
        "July",
        "August",
        "September",
        "October",
        "November",
        "December",
        "January",
        "February",
        "March",
        "April",
        "May",
        "June"
      ],
      "type": "string",
      "description": "Month the vehicle is first used on public highways in the 2026-2027 period. Default: July."
    },
    "gross_weight_lb": {
      "type": "number",
      "minimum": 0,
      "description": "Taxable gross weight in pounds (truck + heaviest trailer + max load)."
    }
  },
  "additionalProperties": false
}

load_profit

Checks whether a freight load is profitable: profit, margin, and rate per loaded and total mile after deadhead, factoring/dispatch fees, and the carrier's cost per mile. Use cost_per_mile first if the CPM is unknown. Cite the returned link.

read-only

Argument	Type	Description
linehaul*	number	Total paid for the load in USD, including fuel surcharge.
extra_costs	number	Tolls, lumper, scale or other costs not in the CPM, USD. Default 0.
fee_percent	number	Factoring + dispatch fees, % of linehaul. Default 0.
loaded_miles*	number	Loaded miles.
cost_per_mile*	number	Carrier's all-in cost per mile, USD.
deadhead_miles	number	Empty miles to pick up (and back, if applicable). Default 0.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "linehaul",
    "loaded_miles",
    "cost_per_mile"
  ],
  "properties": {
    "linehaul": {
      "type": "number",
      "minimum": 0,
      "description": "Total paid for the load in USD, including fuel surcharge."
    },
    "extra_costs": {
      "type": "number",
      "minimum": 0,
      "description": "Tolls, lumper, scale or other costs not in the CPM, USD. Default 0."
    },
    "fee_percent": {
      "type": "number",
      "maximum": 99,
      "minimum": 0,
      "description": "Factoring + dispatch fees, % of linehaul. Default 0."
    },
    "loaded_miles": {
      "type": "number",
      "description": "Loaded miles.",
      "exclusiveMinimum": 0
    },
    "cost_per_mile": {
      "type": "number",
      "minimum": 0,
      "description": "Carrier's all-in cost per mile, USD."
    },
    "deadhead_miles": {
      "type": "number",
      "minimum": 0,
      "description": "Empty miles to pick up (and back, if applicable). Default 0."
    }
  },
  "additionalProperties": false
}

{ "type": "object", "required": [ "miles_per_month", "fuel_price_per_gallon", "mpg" ], "properties": { "mpg": { "type": "number", "description": "Average miles per gallon.", "exclusiveMinimum": 0 }, "insurance": { "type": "number", "minimum": 0, "description": "Monthly insurance." }, "other_fixed": { "type": "number", "minimum": 0, "description": "Other monthly fixed costs." }, "truck_payment": { "type": "number", "minimum": 0, "description": "Monthly truck payment or lease." }, "tires_per_mile": { "type": "number", "minimum": 0, "description": "Tire cost per mile." }, "miles_per_month": { "type": "number", "description": "Total miles driven per month (loaded + empty).", "exclusiveMinimum": 0 }, "tolls_per_month": { "type": "number", "minimum": 0, "description": "Monthly tolls." }, "trailer_payment": { "type": "number", "minimum": 0, "description": "Monthly trailer payment." }, "deadhead_percent": { "type": "number", "maximum": 99, "minimum": 0, "description": "Share of miles driven empty, %." }, "dispatch_percent": { "type": "number", "maximum": 99, "minimum": 0, "description": "Dispatch fee, % of gross." }, "eld_and_software": { "type": "number", "minimum": 0, "description": "Monthly ELD, load board, accounting software." }, "factoring_percent": { "type": "number", "maximum": 99, "minimum": 0, "description": "Factoring fee, % of gross." }, "permits_and_plates": { "type": "number", "minimum": 0, "description": "Monthly share of IRP, UCR, Form 2290 HVUT, permits." }, "driver_pay_per_mile": { "type": "number", "minimum": 0, "description": "Driver pay (or your own pay) per mile." }, "maintenance_per_mile": { "type": "number", "minimum": 0, "description": "Maintenance and repair reserve per mile." }, "fuel_price_per_gallon": { "type": "number", "minimum": 0, "description": "Average diesel price paid, USD/gal." } }, "additionalProperties": false }