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Iowa Toll Roads Complete Guide

System: No toll roads - completely toll-free state
Coverage: All Iowa highways, interstates, and roads are toll-free
Funding: Road Use Tax Fund (fuel taxes, registration fees, electric vehicle fees)
Alternative: 31¢/gallon gas tax, 32.5¢/gallon diesel tax, plus EV fees
Operators: Iowa Department of Transportation (IDOT)

Iowa Toll Calculator

Do I Need to Pay Tolls in Iowa? 2025 Update

No, you don't need to pay any tolls to drive anywhere in Iowa. Iowa is one of 12 US states and territories that maintains a completely toll-free highway system. You can drive across the entire state without any transponder, cash payment, or concern about missed tolls.

Key Reality: While Iowa remains toll-free, neighboring states like Illinois have extensive toll networks. Iowa uses fuel taxes and registration fees to fund road maintenance instead of tolls.

2025 Update: Iowa maintains its toll-free status despite 36 US states having toll roads. The Road Use Tax Fund collected approximately $2 billion in Fiscal Year 2025 through fuel taxes and fees, eliminating the need for tolls.

Iowa Road Costs: What You Actually Pay

Iowa funds its highway system through fuel taxes and vehicle registration fees rather than tolls, providing transparent, predictable costs for drivers.

Current Iowa Road Funding Rates (2025)

Fuel Type	Tax Rate	Annual Cost (15,000 miles)	vs. Toll Equivalent
Gasoline	31¢ per gallon	~$155 (30 mpg)	$0.01 per mile
Diesel	32.5¢ per gallon	~$122 (40 mpg)	$0.008 per mile
Electric Vehicle (BEV)	$130 annual fee	$130 + registration	$0.0087 per mile
Plugin Hybrid (PHEV)	$65 annual fee	$65 + fuel tax	$0.0043 per mile
Electric Motorcycle	$9 annual fee	$9 + registration	$0.0006 per mile

Why Iowa Remains Toll-Free

Rural Farm-to-Market State: Iowa DOT considers tolls "not a good fit for a rural, farm-to-market state"

Successful Funding Model: Road Use Tax Fund provides stable $2 billion annually for infrastructure

Lower Traffic Density: Unlike highly urbanized toll corridors, Iowa's system doesn't require toll-based congestion management

How Iowa Funds Its Roads

Iowa uses a comprehensive funding system that eliminates the need for tolls while maintaining excellent road infrastructure.

1. Motor Fuel Tax:

• Gasoline: 31¢ per gallon (increased 10¢ in 2015)
• Diesel: 32.5¢ per gallon
• Automatic collection at point of sale
• Accounts for major portion of Road Use Tax Fund

2. Vehicle Registration Fees:

• Based on vehicle weight and list price
• Annual registration required for all vehicles
• Supplemental fees for electric vehicles

3. Electric Vehicle Fees (Started 2020):

• Battery Electric Vehicles: $130 annual supplemental fee
• Plug-in Hybrids: $65 annual supplemental fee
• Electric Motorcycles: $9 annual supplemental fee
• Electric Fuel Excise Tax: 2.6¢ per kWh at non-residential charging

4. Fund Distribution:

• Primary Road Fund: State highways
• Secondary Road Fund: County roads
• City Street Fund: Municipal roads
• Farm-to-Market Fund: Rural connectivity

Recent Changes (2025)

Electric Vehicle Fee Implementation:

• Electric Fuel Excise Tax fully implemented at 2.6¢ per kWh (non-residential charging)
• Supplemental registration fees helping offset lost fuel tax revenue
• Approximately 3,000+ electric vehicles now registered in Iowa

Road Use Tax Fund Performance:

• Fiscal Year 2025: Estimated $2 billion in collections and distributions
• Strong funding performance eliminates immediate need for tolls
• TIME-21 Fund providing additional infrastructure support

Future Evaluations:

• DOT conducting periodic reviews of funding needs vs. availability
• Next major assessment due to Iowa Legislature by end of 2026
• 2018 I-80 study showed tolls financially feasible but not philosophically aligned

Planning Your Journey

Cost Considerations:

• Cross-state travel: $0 in tolls (gas costs only)
• I-80 corridor: Completely toll-free from Illinois to Nebraska
• All state highways: No toll charges whatsoever
• Major cities: No urban congestion pricing or tolls

Interstate Connections:

• I-80: Toll-free corridor from Illinois to Nebraska
• I-35: Toll-free from Minnesota to Missouri
• I-380: Toll-free Cedar Rapids to Waterloo
• I-680: Toll-free Omaha bypass

Travel Tips:

• No transponder needed for Iowa travel
• Prepare for tolls when entering Illinois, Missouri (limited), or Minnesota (limited)
• Wisconsin and Nebraska also remain toll-free
• Save money on cross-country trips by routing through Iowa

Frequently Asked Questions

Are there any tolls anywhere in Iowa?

No, Iowa has zero toll roads, toll bridges, or toll tunnels. Every highway, interstate, and bridge in Iowa is completely toll-free. This includes I-80, I-35, I-380, I-680, and all state highways.

Will Iowa ever implement tolls?

Unlikely in the near future. Iowa DOT leadership considers tolls inappropriate for a rural, farm-to-market state. The current Road Use Tax Fund provides sufficient funding, and a 2018 study showed tolls were financially feasible but not philosophically aligned with Iowa's approach.

Do electric vehicles pay road taxes in Iowa?

Yes, electric vehicles pay supplemental registration fees: $130 annually for battery electric vehicles, $65 for plug-in hybrids, and $9 for electric motorcycles. There's also a 2.6¢ per kWh tax on non-residential charging.

How does Iowa fund roads without tolls?

Iowa uses fuel taxes (31¢/gallon gasoline, 32.5¢/gallon diesel), vehicle registration fees, and electric vehicle supplemental fees. This generates approximately $2 billion annually for the Road Use Tax Fund.

Is I-80 toll-free across Iowa?

Yes, I-80 is completely toll-free across Iowa's 306-mile stretch from the Illinois border to Nebraska. This makes Iowa a popular route for cross-country travelers avoiding toll states.

Iowa vs. Neighboring States

State	System Type	Typical Cost	Coverage
Iowa	Toll-free (fuel tax)	$0.00	All highways toll-free
Illinois	I-Pass/E-ZPass	$0.05-0.15/mile	Major tollways statewide
Missouri	Limited tolls	$2.00 (one bridge)	Lake of Ozarks Bridge only
Minnesota	Limited tolls	$1.00-2.00/trip	2 bridges only
Nebraska	Limited tolls	$1.00/trip	2 bridges (Missouri River)
Wisconsin	Toll-free	$0.00	All highways toll-free

Useful Links & Resources

Internal Navigation:

• US Toll Roads - Complete United States toll information
• Toll-Free States - States without toll roads

Neighboring State Toll Information:

• Illinois I-Pass system for extensive toll network
• Missouri's single toll bridge at Lake of Ozarks
• Minnesota's limited toll bridges
• Nebraska's Missouri River toll bridges
• Wisconsin's toll-free highway system

Official Agencies:

• Iowa Department of Transportation: 515-239-1101 - Highway information
• Iowa Department of Revenue: 515-281-3114 - Motor fuel tax and EV fees
• Iowa Tax and Tags: Vehicle registration and fees
• Iowa Treasurer of State: Road Use Tax Fund distribution

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