Michigan Gas Tax Increase: New Rate, Sales Tax and Impact

Michigan Gas Tax 2026: Complete Guide to the 52.4¢ Per Gallon Increase

On January 1, 2026, Michigan implemented one of the most significant fuel tax increases in its history, raising the gas tax from 31.0¢ to 52.4¢ per gallon—a 69% increase. This comprehensive guide explains everything you need to know about these changes, how they affect you, and what to expect in the coming years.

Quick Summary

• New tax rate: 52.4¢ per gallon (both gas and diesel)
• Previous rate: 31.0¢ per gallon
• Increase: 21.4¢ per gallon (69% higher)
• Effective date: January 1, 2026
• Good news: 6% sales tax on fuel eliminated
• Annual adjustments: Tax rate will increase with inflation (max 5% per year)

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Table of Contents

1. What Changed on January 1, 2026
2. The Full Legislative Package
3. How This Affects Michigan Drivers
4. Sales Tax Elimination: The Silver Lining
5. Special Inventory Tax for Businesses
6. Annual Inflation Adjustments
7. How Michigan Compares to Other States
8. Revenue and Infrastructure Plans
9. Who's Most Affected
10. Planning for Higher Fuel Costs
11. Frequently Asked Questions

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What Changed on January 1, 2026

The New Fuel Tax Rate

Effective January 1, 2026, Michigan's motor fuel tax increased dramatically:

Old Rate (2025):

• Gasoline: 31.0¢ per gallon
• Diesel: 31.0¢ per gallon

New Rate (2026):

• Gasoline: 52.4¢ per gallon
• Diesel: 52.4¢ per gallon

The 52.4¢ rate consists of:

• Base rate: 51.0¢ per gallon, set by Public Act 20 of 2025
• Inflation adjustment: 1.4¢ per gallon (51.0¢ × 1.027 = 52.377¢, rounded up to the next 0.1¢)

Michigan Treasury published that calculation in its November 25, 2025 notice on the inflation-adjusted fuel tax rate, using the 2.7% change in the U.S. CPI for the 12 months ending September 30, 2025.

Separately, refined petroleum still carries the 1¢ per gallon environmental protection regulatory fee under MCL 324.21508, which the 2025 road package did not change. That is why some national tables, including the Tax Foundation's July 2026 table, list Michigan at 53.4¢: they add the 1¢ fee to the 52.4¢ tax. The fee was charged in 2025 too, so it does not affect the year-over-year increase.

Three Major Changes

1. Fuel Tax Increase: +21.4¢ per gallon on all motor fuel
2. Sales Tax Elimination: 6% sales tax on fuel purchases removed
3. Annual Inflation Adjustments: Tax rate will increase each year based on CPI

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The Full Legislative Package

House Bill 4183 and Related Acts

The rate change came through House Bill 4183, enacted as Public Act 20 of 2025, one of four bills in the road funding package. Michigan Treasury's notice describes what each act does:

• Public Act 17: ends the prepaid sales tax on motor fuel and exempts "eligible fuel" from sales tax
• Public Act 18: ends the separate use tax on fuel used by IFTA motor carriers
• Public Act 19: exempts eligible fuel from use tax
• Public Act 20: sets the 51¢ base rate, the annual inflation adjustment, and the one-time inventory tax

All four bills were enacted as Public Acts 17-20 of 2025, signed into law on October 7, 2025, and took effect on the same date with implementation beginning January 1, 2026.

Constitutional Restrictions

Michigan's Constitution restricts how fuel tax revenue can be used:

Article IX, Section 9 of the Michigan Constitution dedicates taxes on motor fuel and vehicle registrations to transportation purposes, such as roads, bridges, and public transit, after the costs of collecting them.

This means the increased revenue cannot be diverted to other state programs like education or healthcare.

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How This Affects Michigan Drivers

Annual Cost Increase

The average Michigan driver will pay significantly more in fuel taxes in 2026. Here's the breakdown:

Typical Michigan Driver:

• Annual mileage: 14,000 miles
• Average MPG: 25
• Annual fuel consumption: 560 gallons

Additional Annual Cost: 560 gallons × $0.214 = $119.84 more per year

Or about $10 per month

Impact by Mileage

Impact by Vehicle Type

Fuel-Efficient Vehicle (35 MPG):

• 15,000 miles: 429 gallons used
• Additional cost: $91.81/year

Average SUV (20 MPG):

• 15,000 miles: 750 gallons used
• Additional cost: $160.50/year

Pickup Truck (16 MPG):

• 15,000 miles: 938 gallons used
• Additional cost: $200.73/year

Commercial Truck (6 MPG, 30,000 miles):

• 30,000 miles: 5,000 gallons used
• Additional cost: $1,070.00/year

Use our Michigan Gas Tax Calculator to calculate your specific impact.

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Sales Tax Elimination: The Silver Lining

What Changed

Prior to January 1, 2026, Michigan charged 6% sales tax on the retail price of fuel. Under Public Acts 17 and 19 of 2025, gasoline and diesel are exempt from sales and use tax on and after January 1, 2026, and the prepaid sales tax wholesalers collected at the rack ended with the December 2025 period (final rates of 15.2¢ for gasoline and 19.1¢ for diesel), per Treasury's updated notice on Public Acts 17-20 of 2025. Aviation fuel and fuel used for home heating are not covered by the exemption.

The Math

Example at $3.50/gallon gas:

• Old sales tax: $3.50 × 6% = $0.21 per gallon
• New sales tax: $0.00
• Savings: $0.21 per gallon

For average driver (560 gallons/year):

• Annual sales tax savings: 560 × $0.21 = $117.60

Net Impact Comparison

Here's the complete picture for a typical driver:

The bottom line: For many Michigan drivers, the sales tax elimination nearly offsets the fuel tax increase, especially at current gas prices.

Why It Matters

The net impact varies based on gas prices:

If gas prices rise to $4.00/gallon:

• Sales tax savings increase to $0.24/gallon
• Net impact becomes more favorable to drivers

If gas prices fall to $3.00/gallon:

• Sales tax savings decrease to $0.18/gallon
• Drivers pay slightly more overall

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Special Inventory Tax for Businesses

What is the Inventory Tax?

To prevent stockpiling of fuel at the old tax rate, Michigan imposed a one-time inventory tax on fuel held in storage as of 11:59 PM on December 31, 2025.

Who Must Pay?

End Users (3,000-gallon threshold):

• Construction companies
• Trucking companies
• Farms
• Any business with fuel for own use

Fuel Resellers:

• Gas stations
• Fuel distributors
• Wholesalers
• Tank capacity determines threshold:
  • Tanks <10,000 gallons: 200-gallon threshold
  • Tanks ≥10,000 gallons: 400-gallon threshold

Tax Calculation

Tax Rate: 21.4¢ per gallon (the 2026 rate of 52.4¢ minus the 2025 rate of 31.0¢, per Treasury). For resellers, the dead storage threshold applies to each tank, not to total inventory. Gallons you will use for a nontaxable purpose, such as off-road use, can be left out.

Formula:

Taxable Gallons = Storage Amount - Threshold
Inventory Tax = Taxable Gallons × $0.214

Example:

• Gas station with 8,000 gallons stored
• Threshold: 200 gallons (small tank)
• Taxable: 8,000 - 200 = 7,800 gallons
• Tax owed: 7,800 × $0.214 = $1,669.20

Filing Requirements

• Form: Michigan Form 4010
• Due date: February 20, 2026
• Payment due: February 20, 2026
• Late penalties: Yes. Treasury can assess the tax plus interest and penalty if Form 4010 is not filed; if you received a Form 4010 and owe nothing, you still return it with the "no inventory" box checked

Use our Michigan Fuel Inventory Tax Calculator to calculate your obligation.

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Annual Inflation Adjustments

How It Works

Starting January 1, 2027, Michigan's fuel tax rate will automatically adjust each year for inflation based on the Consumer Price Index (CPI).

The Formula

Annual Adjustment:

New Rate = Previous Rate × (1 + Lesser of 5% or Inflation Rate)

The increase is capped at 5% per year, even if inflation is higher.

Projected Rates

Assuming 3% annual inflation:

These projections round each year's result up to the next 0.1¢, the same way Treasury rounded the 2026 rate.

If inflation hits 5% (maximum allowed):

Publication Requirements

The Michigan Department of Treasury calculates each year's rate under MCL 207.1008 and announces it in a taxpayer notice before January 1. The 2026 rate was published on November 25, 2025, using CPI data released through October 24, 2025. Expect the 2027 rate notice in late November 2026.

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How Michigan Compares to Other States

Fuel Tax Rankings (July 2026)

The Tax Foundation's July 2026 gas tax table counts every state-level per-gallon charge, so it shows Michigan at 53.4¢ (the 52.4¢ tax plus the 1¢ environmental protection regulatory fee). Its highest-taxing states:

The table includes sales taxes that some states still apply to fuel (Illinois and Indiana among them) and excludes some local taxes and the cost of environmental programs such as California's cap-and-trade. Rates in many states change on January 1 or July 1, so ranks shift during the year.

Border State Comparison

Driving to Neighboring States for Cheaper Gas?

Ohio's temporary fuel tax holiday: Ohio House Bill 519 cuts Ohio's motor fuel tax to 0.0001¢ per gallon from October 4, 2026 through January 2, 2027 (Ohio Department of Taxation bulletin, October 2, 2026). While it lasts, the state-tax gap at the Ohio line is about 53.4¢ per gallon instead of 14.9¢; the table above shows the standard rates that return on January 3, 2027.

The incentive to cross the line runs toward Ohio (the Toledo corridor) and Wisconsin (along the Upper Peninsula border). Along the Indiana line it runs the other way: Indiana's total state tax per gallon is higher than Michigan's.

Is it worth it?

• Ohio savings: about 15¢ per gallon in state tax at standard rates (about 53¢ during Ohio's holiday through January 2, 2027)
• 20-gallon fill-up: about $3.00 saved at standard rates, about $10.68 during the holiday
• Consider: drive time, wear on the vehicle, and the fuel burned getting there

Read more: Michigan vs Ohio Gas Tax Comparison 2026

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Revenue and Infrastructure Plans

Where the Money Goes

Article IX, Section 9 of the Michigan Constitution dedicates motor fuel and vehicle registration taxes to transportation: roads, bridges, and public transit, after the cost of collecting them. That is the main reason for the swap. The sales tax Michigan used to charge on fuel went mostly to schools and local revenue sharing, while the higher per-gallon tax goes to the transportation funds. Treasury's notices describe the tax mechanics but not revenue estimates, so check the Senate and House Fiscal Agencies' analyses of the 2025 package for projected dollars.

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Who's Most Affected

Because the higher per-gallon tax replaced a sales tax worth about the same amount at $3.50 gas, the change mostly redistributes cost rather than adding it:

• Drivers when gas is cheap. Below about $3.57 a gallon ($0.214 ÷ 6%), the new system costs more than the old one; above it, less. At $3.00 gas a driver using 600 gallons pays about $20 more a year.
• High-mileage and low-MPG drivers. The net effect scales with gallons. A pickup using 1,000 gallons a year pays $214 more in per-gallon tax and saves about $210 in sales tax at $3.50 gas, a net change of about $4.
• Businesses that held fuel on December 31, 2025. They owed the one-time 21.4¢ inventory tax on gallons above the threshold.
• Interstate truckers. IFTA carriers no longer pay Michigan's separate fuel use tax; from 2026 they pay only the motor carrier fuel tax, which equals the 52.4¢ rate, per Treasury.
• EV owners. They pay no fuel tax at all, though Michigan charges electric and plug-in hybrid vehicles an extra annual registration fee.

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Planning for Higher Fuel Costs

For Individual Drivers

1. Improve Fuel Efficiency

• Keep tires inflated to the door-placard pressure
• Keep up with scheduled maintenance
• Remove roof racks and extra weight you are not using
• Avoid long idling

2. Change Driving Habits

• Combine errands into single trips
• Use cruise control on highways
• Avoid aggressive acceleration/braking
• Plan routes to minimize distance

3. Consider Carpooling

• Share rides with coworkers
• Carpool for kids' activities
• Splitting a 600-gallon commute two ways halves both fuel cost and fuel tax

4. Evaluate Public Transit

• Calculate true commuting costs
• Include parking, maintenance, insurance
• Many find transit is cheaper than assumed

5. Vehicle Choice

• When buying next vehicle, factor in fuel costs
• Calculate 5-year fuel expense difference
• Consider hybrid or EV options

For Businesses

1. Optimize Routes

• Use route optimization software
• Reduce empty miles
• Consolidate deliveries

2. Improve Fleet Efficiency

• Regular maintenance schedules
• Driver training on efficient driving
• Consider more efficient vehicles

3. Pass Through Costs

• Add fuel surcharges to invoices
• Adjust pricing to reflect increased costs
• Communicate changes to customers

4. Tax Deductions

• Fuel is deductible for business use if you deduct actual vehicle expenses
• Keep detailed mileage logs
• Consider standard mileage rate vs actual expenses

5. Alternative Fuels

• Evaluate compressed natural gas (CNG)
• Consider electric vehicles for local routes
• Explore biodiesel options

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Frequently Asked Questions

General Questions

When did the new tax take effect?

January 1, 2026 at 12:00 AM.

Does this apply to diesel fuel?

Yes, both gasoline and diesel are taxed at 52.4¢ per gallon.

What about other fuels?

• Aviation fuel: taxed under the aeronautics code (a 3¢ per gallon privilege tax), not the motor fuel tax, and still subject to sales tax
• Alternative fuels such as propane (LPG) and natural gas used in vehicles: 52.4¢ per gallon or gallon equivalent in 2026
• Ethanol blends sold as gasoline: same rate as gasoline

Will the rate increase again?

Yes, annually starting January 1, 2027, based on inflation (capped at 5% per year).

Sales Tax Questions

Is the sales tax really gone?

Yes. Gasoline, diesel (including dyed diesel), and other "eligible fuel" are exempt from sales and use tax on and after January 1, 2026.

Does this apply to all fuel sales?

No. Aviation fuel and fuel used for home heating or other building utilities are excluded from the definition of eligible fuel, so those sales can still be taxed unless another exemption applies.

How much does the sales tax elimination save me?

At $3.50/gallon gas, it saves about 21¢ per gallon, or approximately $120/year for a typical driver.

Inventory Tax Questions

Do I need to pay the inventory tax?

Only if you held more than the threshold amount of fuel on December 31, 2025:

• End users: 3,000 gallons
• Resellers: 200-400 gallons (depends on tank size)

When is the inventory tax due?

Report and payment are both due February 20, 2026.

What if I forgot to measure my fuel on Dec 31?

You must make your best estimate based on available records. Keep all documentation supporting your estimate.

What are the penalties for late filing?

Late filing and payment penalties apply. Interest accrues from the due date. File as soon as possible if you're late.

Impact Questions

How much more will I pay per year?

For a typical Michigan driver (14,000 miles/year at 25 MPG): about $120/year more in fuel tax, largely offset by $118/year in sales tax savings, for a net increase of only $2/year.

Will gas prices go up by 21.4¢?

Not necessarily. While the tax increased by 21.4¢, gas stations also stopped collecting the 6% sales tax. At $3.50 per gallon the sales tax was worth about 21¢, so the net change is roughly 0.4¢; at $3.00 it is about 3.4¢ (21.4¢ − 18¢). Pump prices also move with crude oil and wholesale costs, which usually swamp the tax change.

Can I deduct this on my federal taxes?

Fuel taxes are only deductible if:

• Used for business purposes (business deduction)
• You itemize deductions and choose to deduct state sales taxes (rare, and fuel tax doesn't qualify)

Most individuals cannot deduct fuel taxes.

Comparison Questions

How does Michigan compare to other states?

Michigan's 52.4¢ excise tax (53.4¢ including the 1¢ environmental protection regulatory fee) now puts it among the highest state gas taxes in the country. Exact rankings shift as other states adjust rates on January 1 and July 1.

Should I buy gas in neighboring states?

Financially, it only makes sense if:

• You're already near the border
• You need a large fill-up
• The station is convenient

Example: Filling a 20-gallon tank in Ohio saves about $2.98 in state tax vs Michigan (20 × 14.9¢). If you drive 10 miles out of your way (20 miles round trip at 25 MPG = 0.8 gallons), you spend $2.80 in fuel. Not worth it for most people at standard rates. During Ohio's fuel tax holiday (through January 2, 2027) the same fill-up saves about $10.68 (20 × 53.4¢), so a short detour from the Toledo corridor can pay off.

Electric Vehicle Questions

Do electric vehicles pay this tax?

No, EVs don't use gasoline or diesel, so they don't pay the fuel tax.

Is there a special tax on EVs instead?

Michigan already adds an annual registration surcharge for electric and plug-in hybrid vehicles, created in the 2015 road funding package. Check the Michigan Secretary of State's registration fee schedule for the current amount.

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Resources and Tools

Michigan fuel tax calculators

• Michigan Gas Tax Impact Calculator - Calculate your personal fuel cost increase
• Michigan Fuel Inventory Tax Calculator - For businesses holding fuel inventory

State Resources

• Michigan Department of Treasury - Motor Fuel Tax Division
• Michigan Treasury: updated notice on Public Acts 17-20 of 2025

Related Articles

• Michigan vs Ohio Gas Tax Comparison - Should you buy gas across state lines?

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Conclusion

Michigan's 2026 fuel tax increase represents a significant change to the state's transportation funding structure. While the 21.4¢/gallon increase initially appears substantial, the simultaneous elimination of the 6% sales tax largely offsets the impact for most drivers.

Key Takeaways:

1. Net impact is smaller than headlines suggest - Sales tax elimination saves ~21¢/gallon
2. Typical driver pays ~$2 more annually - When accounting for both changes
3. Business inventory tax is significant - File and pay by February 20, 2026
4. Future increases are coming - Annual inflation adjustments up to 5%
5. Revenue funds road improvements - Constitutionally dedicated to transportation

What You Should Do:

✅ Calculate your personal impact using our calculator
✅ Check if you owe inventory tax (businesses/end users with >3,000 gallons)
✅ Plan for future increases - Rates will rise annually with inflation
✅ Consider fuel efficiency when purchasing your next vehicle
✅ Stay informed on how the revenue improves Michigan's roads

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About This Guide

This guide is based on:

• Michigan Public Acts 17-20 of 2025
• Michigan House Bill No. 4183 (enrolled)
• Michigan Department of Treasury official notices
• Analysis of Michigan's fuel taxation structure

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Disclaimer: This article provides general information about Michigan's fuel tax changes. It is not legal or tax advice. For specific guidance related to your situation, consult the Michigan Department of Treasury or a qualified tax professional.