Oregon EV Road Usage Charge Calculator
Estimate your OReGO per-mile cost, compare it to the $340 flat fee, find your break-even mileage, and see your registration savings — all in one place.
Calculate Your Oregon RUC
Your Results
Enter your details above and click Calculate My RUC to see your personalized estimate.
| Option | Annual RUC | 4-Year RUC | 4-Year Registration | 4-Year Total |
|---|---|---|---|---|
| OReGO Per-Mile | $0 | $0 | $172 | $0 |
| Flat Fee | $340 | $1,360 | $172 | $1,532 |
- OReGO rate: 2.3¢ per mile (5% of Oregon's 52¢/gallon fuel tax, 2026)
- Flat fee: $340 per year (HB 3991)
- Break-even: $340 ÷ $0.023 = 14,783 miles/year
- EV registration with OReGO: $172 / 4 years (vs. $752 without)
- Only Oregon miles count toward the road usage charge
How the Oregon EV Road Usage Charge Works
Oregon's road usage charge (RUC) program, called OReGO, is a pay-by-mile system that charges drivers for the miles they drive on Oregon roads instead of taxing them at the gas pump. It was created because electric vehicles and high-efficiency vehicles pay little or no fuel tax, which is the primary funding source for Oregon's roads.
Current Rates (2026)
- Per-mile rate: $0.023 (2.3 cents) per Oregon mile — up from $0.02 in 2025
- Flat fee alternative: $340 per year
- Oregon fuel tax: $0.52 per gallon (effective January 1, 2026)
- Break-even mileage: $340 ÷ $0.023 = 14,783 miles per year
If you drive fewer than 14,783 Oregon miles per year, the per-mile option saves you money. If you drive more, the flat fee costs less.
Registration Fee Savings
When you enroll in OReGO, your EV registration fee drops significantly. Over a 4-year registration period, you save $580 ($752 without OReGO vs. $172 with OReGO). This savings applies regardless of which OReGO payment option you choose.
Mandatory Enrollment Timeline
- July 1, 2027: Used EV drivers must choose between flat fee and per-mile at renewal
- January 1, 2028: Mandatory for new EVs
- July 1, 2028: Mandatory for hybrid and plug-in hybrid vehicles
When enrollment becomes mandatory, you'll still be able to choose between the per-mile rate and the flat annual fee.
Gas Tax Refund
OReGO members who also buy gasoline for another vehicle can receive a credit for fuel tax paid. OReGO subtracts fuel tax paid from your RUC balance until it reaches zero.
Frequently Asked Questions
How much is the Oregon EV road usage charge?
What is the OReGO program?
What is the break-even mileage for OReGO vs the flat fee?
Will I be required to enroll in OReGO?
How much can I save on Oregon EV registration with OReGO?
Do I pay OReGO for out-of-state miles?
Can I get a gas tax refund with OReGO?
What MPG do I enter for my electric vehicle?
Is OReGO worth it for low-mileage drivers?
What happens if I don't choose flat fee or per-mile?
Are commercial EVs exempt from Oregon RUC?
How often do OReGO rates change?
Oregon EV Road Usage Charge Calculator: OReGO vs. Flat Fee (2027 Guide)
If you drive an electric vehicle in Oregon, you've probably heard about the state's pay-by-mile program — and wondered what it will actually cost you. Oregon's road usage charge (RUC), called OReGO, is transitioning from a voluntary program into a mandatory one for most EVs and hybrids between 2027 and 2028. That means every Oregon EV owner will soon need to choose between paying 2.3 cents per mile or a $340 flat annual fee.
This guide explains exactly how the Oregon EV road usage charge works, who has to enroll and when, how to calculate your break-even mileage, and how OReGO stacks up against the state fuel tax you would pay in a gas vehicle. You'll also find a link to our free Oregon EV Road Usage Charge Calculator, which gives you a personalized dollar estimate in seconds.
Key Takeaways
- OReGO per-mile rate: $0.023 per Oregon mile (2.3 cents) in 2026, up from $0.02 in 2025.
- Flat fee alternative: $340 per year (authorized under HB 3991).
- Break-even mileage: $340 ÷ $0.023 = 14,783 miles per year. Drive less, and the per-mile option is cheaper; drive more, and the flat fee is cheaper.
- Registration savings: Enrolling in OReGO cuts the 4-year EV registration fee from $752 to $172 — a $580 savings.
- Mandatory timeline: Used EVs on July 1, 2027; new EVs on January 1, 2028; hybrids and PHEVs on July 1, 2028.
- Only Oregon miles count. Miles driven out of state are not charged.
- Gas tax refund: OReGO credits fuel tax paid on gasoline against your RUC balance.
How Much Will You Pay? (Instant Answer)
Your annual OReGO cost depends on how many miles you drive within Oregon. Multiply your Oregon miles by $0.023 to get your per-mile cost, then compare it to the $340 flat fee.
| Annual Oregon Miles | OReGO Per-Mile Cost | Flat Fee Cost | Cheaper Option |
|---|---|---|---|
| 5,000 mi | $115 | $340 | Per-mile (saves $225) |
| 8,000 mi | $184 | $340 | Per-mile (saves $156) |
| 10,000 mi | $230 | $340 | Per-mile (saves $110) |
| 12,000 mi | $276 | $340 | Per-mile (saves $64) |
| 14,783 mi | $340 | $340 | Break-even (equal) |
| 18,000 mi | $414 | $340 | Flat fee (saves $74) |
| 25,000 mi | $575 | $340 | Flat fee (saves $235) |
Use our Oregon EV Road Usage Charge Calculator to plug in your own mileage, EV model, county, and registration period for a personalized estimate.
OReGO Per-Mile vs. Flat Fee: Which Is Cheaper for You?
The decision comes down to a single number: 14,783 miles per year. That's the break-even point where the $340 flat fee equals the per-mile cost at $0.023 per mile.
When Per-Mile Wins
- You drive fewer than ~14,783 Oregon miles per year
- You're a low-mileage driver (retiree, remote worker, second car)
- Your EV is a shorter-range model used mostly for local trips
When the Flat Fee Wins
- You drive more than ~14,783 Oregon miles per year
- You have a long commute or use your EV for rideshare/delivery
- Your EV is a high-efficiency long-range model driven daily
Regardless of which you choose, both options qualify you for the reduced OReGO registration fee — so the $580 in 4-year registration savings applies either way.
How the Oregon Road Usage Charge Works (2026)
OReGO Program Overview
OReGO is Oregon's road usage charge program administered by the Oregon Department of Transportation (ODOT). Instead of paying the state fuel tax at the pump, participating drivers pay per mile driven on Oregon roads. The program was created because EVs and high-efficiency vehicles pay little or no fuel tax, which is Oregon's primary road funding source. Enrollment has historically been voluntary and very low (roughly 800 drivers in the first decade). Under HB 3991, enrollment will become mandatory for EVs and hybrids between 2027 and 2028.
Current Rate: 2.3 Cents Per Mile in 2026
The OReGO per-mile rate is set at 5% of Oregon's fuel tax rate. Oregon's fuel tax increased to 52 cents per gallon on January 1, 2026, which raised the RUC rate to $0.023 per mile. That's up from $0.02 per mile in earlier years. Because the rate is tied to the fuel tax, it can change in future legislative sessions.
The $340 Flat Fee Alternative
HB 3991 (2025) created a flat annual fee of $340 per year as an alternative to the per-mile charge. The flat fee is intended to give high-mileage drivers a predictable, capped cost — and it's roughly equal to driving 14,783 miles per year at the per-mile rate. When enrollment becomes mandatory, you will be able to choose either option at renewal.
What Counts as an "Oregon Mile"?
Only miles driven within Oregon are charged. If you drive to Washington, Idaho, California, or Nevada, those out-of-state miles are not billed. Reporting methods vary — some OReGO participants use a plug-in device that reports mileage, while others report manually or use a smartphone app. Precise OReGO reporting options are listed on oregon.gov.
Gas Tax Refund for OReGO Members
If you buy gasoline for another vehicle (or a generator, or a second car), OReGO credits the fuel tax you paid against your RUC balance. This means EV owners with a household gas car aren't double-taxed. The credit is applied until your RUC balance reaches zero for that period.
Oregon RUC Mandatory Enrollment Timeline (2027–2028)
Under HB 3991, enrollment transitions from voluntary to mandatory in three phases:
| Vehicle Type | Mandatory Date | What Happens |
|---|---|---|
| Used EVs | July 1, 2027 | Owner must choose flat fee or per-mile at renewal |
| New EVs | January 1, 2028 | Mandatory enrollment for all new EV registrations |
| Hybrids & PHEVs | July 1, 2028 | Mandatory for plug-in hybrids and conventional hybrids |
For a personalized timeline based on your vehicle type and registration date, use the Oregon EV RUC Calculator.
Oregon EV Registration Fees & OReGO Savings
One of the strongest financial reasons to enroll in OReGO — independent of which payment option you choose — is the registration fee reduction. Oregon charges EVs significantly more than gas vehicles for registration, but OReGO participation drops that fee dramatically.
| Registration Period | EV Without OReGO | EV With OReGO | Savings |
|---|---|---|---|
| 2-Year | $376 | $86 | $290 |
| 4-Year | $752 | $172 | $580 |
Multnomah County adds an additional $112 per 2-year registration period for residents of that county. This fee applies regardless of OReGO enrollment.
OReGO vs. Gas Tax: What You'd Pay in a Gas Vehicle
How does Oregon's per-mile charge for EVs compare to what a gas vehicle owner pays in state fuel tax? Oregon's fuel tax is 52 cents per gallon as of January 1, 2026. A gas vehicle's annual fuel tax bill depends on its MPG and annual mileage.
| Vehicle | MPG | Annual Fuel Tax Paid | Annual OReGO Cost |
|---|---|---|---|
| EV (OReGO per-mile) | n/a | $0 | $276 |
| Gas car — 25 MPG | 25 | $250 | n/a |
| Gas car — 35 MPG | 35 | $178 | n/a |
| Gas car — 50 MPG hybrid | 50 | $125 | n/a |
Note that this comparison covers the state fuel tax only. EVs still pay for electricity, and gas vehicles still pay for gasoline — those are separate operating costs covered in our EV vs Gas Cost Calculator and EV Total Cost of Ownership Calculator.
Who Should Choose OReGO vs. Flat Fee?
| Your Situation | Recommended Choice | Reason |
|---|---|---|
| Drive < 14,783 mi/year in Oregon | Per-mile | You pay only for the miles you drive |
| Drive > 14,783 mi/year in Oregon | Flat fee | Caps your annual cost at $340 |
| Long commute or rideshare use | Flat fee | High mileage makes per-mile expensive |
| Retiree, remote worker, second car | Per-mile | Low mileage favors pay-per-mile |
| Household also owns a gas car | Per-mile | Gas tax credit offsets your RUC balance |
| High-mileage rural driver | Flat fee | Predictable annual cost beats per-mile |
How to Calculate Your OReGO Cost: Step by Step
- Determine your annual Oregon miles. Use your odometer or DMV records. Count only miles driven inside Oregon.
- Multiply by the per-mile rate. Annual Oregon miles × $0.023 = your OReGO per-mile cost.
- Compare to the flat fee. If your per-mile cost exceeds $340, the flat fee is cheaper.
- Find your break-even mileage. $340 ÷ $0.023 = 14,783 miles/year.
- Add registration savings. OReGO saves $580 on a 4-year EV registration.
- Subtract gas tax credit. If you buy gasoline for another vehicle, credit that fuel tax against your RUC balance.
The Oregon EV Road Usage Charge Calculator does all of this automatically — including county fees, registration period, gas vehicle comparison, and a break-even chart.
Methodology & Data Sources
All figures in this article and in our calculator are derived from publicly available Oregon sources. We document our methodology so you can verify every number.
- Per-mile rate ($0.023): 5% of Oregon's fuel tax rate. Fuel tax rose to $0.52/gallon on January 1, 2026 (HB 3991), producing a $0.023/mile RUC rate.
- Flat fee ($340/year): Established by HB 3991 (2025).
- Break-even mileage (14,783 mi/year): $340 ÷ $0.023.
- Registration fees ($752 / $172 for 4 years): Oregon DMV Chapter M fee schedules.
- Multnomah County fee ($112 per 2 years): County registration surcharge.
- Mandatory timeline: HB 3991 and oregon.gov OReGO program pages.
- Gas tax rate ($0.52/gallon): Oregon fuel tax effective January 1, 2026.
Where our research could not verify a figure from a primary source — for example, the exact current OReGO enrollment count — we avoid presenting it as definitive. Rates and fees are current as of September 2026 and may change by legislative action.
Frequently Asked Questions
How much is the Oregon EV road usage charge?
Oregon's per-mile road usage charge is 2.3 cents ($0.023) per mile in 2026. Alternatively, drivers can choose a flat annual fee of $340. The rate is set at 5% of Oregon's fuel tax and adjusts when the fuel tax changes.
What is the OReGO program?
OReGO is the Oregon Department of Transportation's road usage charge program. Drivers pay per mile driven within Oregon instead of paying fuel tax at the pump. Enrollment has historically been voluntary; under HB 3991 it becomes mandatory for EVs and hybrids between July 2027 and July 2028.
How do I calculate my OReGO payment?
Multiply your annual Oregon miles by $0.023. For example, 12,000 Oregon miles × $0.023 = $276 per year. Compare that to the $340 flat fee — if you drive fewer than 14,783 miles, per-mile is cheaper.
What is the break-even mileage for OReGO vs. flat fee?
The break-even point is 14,783 miles per year. That is the mileage at which the $340 flat fee equals the per-mile charge. Below that, per-mile is cheaper; above it, the flat fee is cheaper.
Will I be required to enroll in OReGO?
Yes, eventually. Under HB 3991, used EV drivers must choose between flat fee or per-mile at renewal on or after July 1, 2027. New EVs become mandatory on January 1, 2028, and hybrids/PHEVs on July 1, 2028.
When does mandatory OReGO enrollment start?
Mandatory enrollment begins with used EVs on July 1, 2027. New EVs follow on January 1, 2028, and hybrids/PHEVs on July 1, 2028. Dates are set by HB 3991.
How much can I save on Oregon EV registration with OReGO?
EV registration without OReGO is $752 for 4 years. With OReGO, it drops to $172 for 4 years — a $580 savings. That's roughly $145 per year.
What is the Oregon EV flat fee alternative?
The flat fee is $340 per year, authorized by HB 3991 as an alternative to the per-mile charge. It gives high-mileage drivers a predictable annual cost.
Do I pay OReGO for out-of-state miles?
No. Only miles driven within Oregon are subject to the road usage charge. Out-of-state miles are not billed.
Can I get a gas tax refund with OReGO?
Yes. If you purchase gasoline — typically for a second vehicle — OReGO credits the fuel tax you paid against your RUC balance until it reaches zero. This prevents double taxation for households that own both an EV and a gas car.
What MPG do I enter for my electric vehicle?
You don't need an MPG figure for the OReGO calculation itself — the per-mile rate applies regardless of efficiency. MPG is only used when comparing your cost to a gas vehicle's fuel tax. If you want a comparison, enter the MPG of a comparable gas car, not your EV.
Is OReGO worth it for low-mileage drivers?
Yes. If you drive fewer than 14,783 Oregon miles per year, the per-mile option is cheaper than the $340 flat fee. On top of that, all OReGO members get the $580 registration savings over 4 years, regardless of which payment option they choose.
How does OReGO compare to gas tax?
At 12,000 Oregon miles, OReGO costs $276 per year. A gas car getting 25 MPG pays about $250 per year in Oregon state fuel tax; a 35 MPG car pays about $178; a 50 MPG hybrid pays about $125. So a typical EV owner pays somewhat more in RUC than a comparable gas car pays in state fuel tax — but the EV also saves on fuel, maintenance, and (via OReGO) registration.
What happens if I don't choose flat fee or per-mile?
Once enrollment becomes mandatory, you'll be required to select one of the two options at renewal. If you take no action, Oregon DMV applies a default — most likely the flat fee, based on the program design in HB 3991. Verify current DMV policy before your renewal date.
Are commercial EVs exempt from Oregon RUC?
Some large commercial fleets have specific exemptions under HB 3991, and certain electric delivery vehicles face a different rate structure. Commercial vehicle owners should consult ODOT directly or a tax professional for their specific situation.
How often do OReGO rates change?
The per-mile rate is set at 5% of the fuel tax rate, so it changes automatically when Oregon's fuel tax changes. The flat fee is set by legislation and may be adjusted in future sessions. The current rate ($0.023/mile) reflects the $0.52/gallon fuel tax effective January 1, 2026.
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Sources & References
- Oregon Department of Transportation (ODOT) — OReGO program pages, calculator, and FAQ: oregon.gov/odot/orego
- Oregon HB 3991 (2025) — transportation funding legislation establishing mandatory RUC enrollment and the $340 flat fee: oregonlegislature.gov
- Oregon DMV — vehicle registration fee schedules: oregon.gov/odot/dmv
- U.S. Department of Energy, Alternative Fuels Data Center — Oregon EV fee and RUC summary: afdc.energy.gov
- U.S. EPA Fuel Economy — model efficiency data: fueleconomy.gov
Last updated: September 2026. This article is reviewed periodically. If you spot an error or an outdated figure, please contact us so we can correct it.
Disclaimer: This article and the linked calculator provide estimates based on publicly available Oregon rates as of September 2026. OReGO rates, flat fee amounts, and registration fees are subject to change by legislative action or administrative update. Only miles driven within Oregon count toward the road usage charge. Verify final amounts with the Oregon Department of Transportation and Oregon DMV before making financial decisions. This content is informational and does not constitute legal, tax, or financial advice.
Official Oregon sources for the OReGO program, current rates, and registration fee schedules:
- OReGO — Oregon's Pay-by-Mile Road Usage Charge Program (ODOT)
- Official OReGO Road Usage Charge Calculator (ODOT)
- OReGO Frequently Asked Questions (ODOT)
- Learn About OReGO — Program Overview (ODOT)
- OReGO: Oregon's Road Usage Charge Program (ODOT Programs)
- Oregon DMV Chapter M Fee Schedule (PDF) — Registration Fees by Vehicle Type
- ODOT Revenue Forecast — HB 3991 Summary (April 2026, PDF)