Required for BEV/PHEV EV surcharge lookup.
Auto-fills county surtax once sheet is configured.
Populated from the Washington rates sheet once configured.
BEV/PHEV: $0 air-quality fee; no EV registration surcharge
Sets combined state+local TPT and AQ compliance fee
Reduces taxable base for TPT / use tax
VLT: 60% of MSRP year 1, then −16.25%/yr
~3–4 mi/kWh typical BEV
$8 reg + $1.50 AQ (excl. VLT)
Populated from the Illinois rates sheet once configured.
Populated from the Florida rates sheet once configured.
Populated from the Texas rates sheet once configured.
Populated from the Louisiana rates sheet once configured.
Reduces sales tax base (new/used only)
12 = full year (renewals always full year)
Used to calculate depreciation for ad valorem tax
5% first 15 days + 5% per 30 days, max 25%
Used for sales/use tax calculation (new & transfer only)
≤60 days = $25; >60 days = max($75, 2× annual reg)
Sets motor-vehicle property tax rate (state 0.45% + local)
Used for 6% motor vehicle usage tax (KRS 138.460)
For annual motor-vehicle property tax; leave blank to use price
Credit for similar tax already paid in another state
Weight-distance tax $0.0285/mile
~25–30 kWh/100 mi ≈ 3.3–4.0 mi/kWh
KY residential avg ~15¢/kWh
Includes ~3.2¢/kWh KY DCFC excise (KRS 138.477)
Base $11.50 + clerk $6 + tech $3
Sets sales tax rate and local permissive registration tax
Reduces sales tax base
Permissive tax prorated 50% if ≤7 months
~25–30 kWh/100 mi ≈ 3.3–4.0 mi/kWh
Wall-to-battery (typical 0.85–0.90)
OH residential avg ~15–20¢/kWh
OH public avg ~$0.43; DCFC often $0.60+
e.g. Adams REC $300, AES signup bonuses
Used for payback years (ΔPrice ÷ annual savings)
Sets combined sales tax (2% state + county + city)
Reduces sales tax base
Typical AL title fee (adjust if your county differs)
~30 kWh/100 mi ≈ 3.33 mi/kWh
Wall-to-battery (typical 0.85–0.90)
AL residential avg ~16.8¢/kWh
AL public avg ~$0.45; DCFC often $0.60+
~$3.80 + 30¢ state + 18.4¢ federal (also used for ICE compare)
Alabama Power L2 rebate
Used for payback years (ΔPrice ÷ annual savings)
Alabama Power TOU
Alabama Power TOU
Sets wheelage tax and county excise
Sets registration depreciation year
Used for §168.013 registration tax & EV surcharge (often = MSRP)
Reduces sales tax base
New plate fee if applicable
Optional dealer documentation (~$200–$275)
~3.3 mi/kWh typical MN BEV
Wall-to-battery (typical 0.85–0.90)
MN residential avg ~16.9¢/kWh
MN public avg ~$0.22–$0.68/kWh; DCFC often higher
MN avg ~$4.02/gal (also used for ICE compare)
Xcel Energy L2 rebate up to $500
Leave 0 to auto-match ICE reg without EV surcharge
Used for payback years (ΔPrice ÷ annual savings)
US DOE avg ~$0.101/mi for ICE
US DOE avg ~$0.061/mi for EV
MN full-coverage avg ~$1,554/yr
EVs often ~15–20% higher than ICE avg
$0.05/kWh public DCFC excise (2027+); 0 to exclude
Xcel Energy Time-of-Day peak
Xcel Energy Time-of-Day off-peak
Sets MVA base fee; EMS $40/yr included in schedule
EV surcharge $125 BEV / $100 PHEV (Jan 2025+)
Optional county/municipal transportation tax
Prior state sales/excise % if transferring into MD (0 = full 6.5%)
~28 kWh/100 mi for Model 3–class BEV
Wall-to-battery (typical 0.85–0.90)
MD residential avg ~22.1¢/kWh
MD public avg ~34.4¢/kWh
Also used for ICE comparison
Pepco/BGE L2 rebate
ICE Class A without EV surcharge
Used for payback years (ΔPrice ÷ annual savings)
Pepco/BGE TOU peak
Pepco/BGE TOU off-peak
Iowa Code §321.116 — BEV $130 / PHEV $65 / motorcycle EV $9
Value fee: 1% if ≤12 yrs old; 0.75% if older
$0.40 per 100 lb (Iowa Code §321.109)
Used for value registration fee and new-registration tax
Credit capped at $4,000 for new-registration fee
~30 kWh/100 mi ≈ 3.33 mi/kWh
Wall-to-battery (typical L2 ~90%)
Iowa residential avg ~13.4¢/kWh (EIA 2024)
Typical IA public L2 ~30¢; DCFC ~55¢
Iowa Code §452A.41 — non-residential charging
Comparable ICE without EV surcharge
Used for 5-/10-year NPV of annual operating cost
EV surcharge $175 / hybrid $75 (2026)
Autos use flat $85; trucks use GVWR tiers
Used for EV surcharge eligibility notes (≤8,000 lb)
Sets sales tax rate and county wheel tax from sheet
Auto-filled from county; override if city levy differs
Auto-filled from county sheet (state + county + city)
Typical dealer processing ~$100–$300
~30 kWh/100 mi ≈ 3.3–3.5 mi/kWh
WI residential avg ~19.7¢/kWh (2026)
Typical WI DCFC ~50–60¢/kWh (sales-tax exempt)
Typical WI utility L2 rebate $400–$800
Auto base without EV/hybrid surcharge
AAA EV avg ~$949/yr
AAA ~$1,694/yr
N.C.G.S. §20-87(13–13a) — BEV $214.50 / PHEV $107.25
County ad valorem at renewal (~0.5–1.5% of value)
Enter DMV-assessed pilot amount for your miles
3% Highway Use Tax (no state sales tax on vehicles)
Lease tax = 3% (cap $2,000) in lieu of HUT
~3.5 mi/kWh typical economy BEV
L2 ~90%; DCFC ~85%
No NC sales tax on residential electricity
e.g. Duke EV Charger Prep credit
Base EV fee ~$63.05 + road-usage (BEV/PHEV)
Sets sales/use tax and emissions code from sheet
Used for simplified weight registration fee
Age fee: <7yr $12 · 7–9 $10 · ≥10 $7 (eff. 7/1/2026)
Enter from county SOT table (varies by age/value)
Typical zone fee; location sets emissions code
Auto-filled from location (combined sales tax)
2026: $750 base + $2,500 low-cost bonus (MSRP ≤ $80k)
Income-qualified: up to $9,000 new / $6,000 used
~3–4 mi/kWh typical BEV
L2 ~90%; DCFC ~85%
CO residential avg ~16.5¢/kWh
Typical DCFC ~$0.35–$0.50/kWh
CO gas excise tax $0.22/gal (included in pump price)
e.g. Xcel Energy $500 L2 rebate
BEV $180 flat / PHEV $56.50 / hybrid $21.75 (2026)
Sets sales tax, corridor fee, and APC (ICE)
Sets age-based uniform fee (new ~$150)
>14,000 lb uses heavy registration tier
Auto-filled from location sheet
$10 in adopting counties (§41-1a-1222)
ICE only in I/M counties; EVs exempt
~3–4 mi/kWh typical BEV
2026 gas tax 52.4¢ → BEV light ~$267 / PHEV ~$113.50
MCL 257.801 weight tax; >8,000 lb = heavy EV surcharge
Indexes EV surcharge above 19¢ (2026: 52.4¢)
Not enacted statewide as of 2026 (default $0)
Use tax on (price − trade-in) × 6%
~$10–$15 for 1-year; $29 for 2-year
~0.35 kWh/mi ≈ 2.86 mi/kWh
§56-3-645: BEV $120 / PHEV&hybrid $60 biennial
Sets millage + flat fees for property tax
Base reg e.g. 4,001–5,000 lb = $40 biennial
Used only if “use sales tax instead of IMF”
~3–4 mi/kWh typical BEV
~half of biennial base + DMV
AFV fee by GVW (eff. Oct 2025): EV $110 / PHEV $85 / HEV $60 under 6,000 lb
Leave 0 to use class default; overrides class bracket when set
Typical specialty $40–$50; vanity $50
e.g. bike-friendly +$25/yr
Also used for DNREC rebate MSRP tiers
Document fee on (price − trade-in) × 5.25%
DE avg ~9,800 mi/yr
~0.30 kWh/mi ≈ 3.33 mi/kWh
Delmarva EVsmart L2 rebate ~$300
Insurify illustrative averages
Default ~50% after 5 years
BEV $120 / PHEV $50 / e-motorcycle $20 per year (unchanged through 2026)
Typical passenger ~$50–$100/yr (class-dependent)
Road-use and base fees multiply by period years
Excise on (price − trade-in) × 5%; no local vehicle sales tax
Optional: up to $7,500 new / $4,000 used if eligible (no ND state rebate)
~4 mi/kWh typical small BEV
L2 public ~$0.25; DCFC ~$0.35–$0.50
Typical ND co-op L2 rebate $100–$750
BEV $100 / PHEV $50 annual decal (W.S. 31-3-102)
Sales tax from WY locality sheet
County fee = 3% × (factor × factory price)
Full year = 12; mid-year first registration prorates
Required for trailer / commercial state fee
Original factory price (used for ad valorem even on used vehicles)
Auto-filled from locality (state 4% + local)
~3–4 mi/kWh typical BEV
BEV $100 / PHEV $50 (eff. July 1, 2023)
Used when class is over 8,000 lb ($1.06 per 100 lb)
Optional town tax (RSA 261:153); e.g. Manchester ~0.3–1.8% of value
Vanity plates typically $60 (new/used only)
Used for TCO only (no NH sales tax)
~3–4 mi/kWh typical BEV
Default ~75% home / 25% public
NHEC $300 L2 rebate (if applicable)
BEV $100/yr (eff. July 1, 2026); PHEV exempt
10+ years old → 30% license fee discount
Optional; class dropdown is primary
Varies by county (often $0–$5/wheel)
Typical plate mail-out on new/used
Often $10 issuance (new/used)
Typically $10 if lien recorded
~3–5 mi/kWh typical BEV
L2 ~15–25¢/kWh; DCFC often timed
e.g. Black Hills Energy up to $500 L2
No separate EV surcharge — BEV uses $32.50/2yr floor
DMV 100-lb brackets · 2,951–3,050 lb = $48.50/2yr
Sets sales tax rate + county use tax / MCTD
$50 through 3/31/2028; drops to $5 after
Optional; capped at $175
EVs exempt from emissions — safety only
For Drive Clean Rebate tier
~3–5 mi/kWh typical BEV
State charger credit up to $500 (to 6/30/26)
BEV $200 / HEV·PHEV $100 (2024–2026 renewals)
Used for truck class (≥26,000 lb or Truck class)
Sets sales tax; Davidson/Shelby preset wheel tax
Davidson $55 · Shelby $50 · others often $0
~3–5 mi/kWh typical BEV
No TN purchase rebate; federal 30C to 6/30/26
MA EV surcharge = $0 (2026)
Sets excise depreciation factor
Original MSRP drives assessed value
Typically $25 if financed
BEVs exempt from emissions; still pay safety
Federal new-EV credit (30D) ended 9/30/2025 — shown as $0 for 2026 purchases. HOV Clean Air decals ended 9/30/2025.
~3–5 mi/kWh typical BEV
Heavy EV decal tiers above 18,000 / 36,000 lb
State 4.225% + local from sheet
Often $2 on ownership transfer
Avg MO utility L2 rebate ~$250
~3–5 mi/kWh typical BEV
~10¢/mi × 12k
~6¢/mi × 12k
BEV uses EV fee tier regardless of MPGe
>26,000 lb → weight-mile (not passenger reg)
DEQ rebates typically require ≥10 kWh
Oregon does not credit trade-in against privilege tax
Typical new $26 · transfer $30
PGE / Pacific Power L2 typically $300–$500
Clean-Air HOV stickers expired 9/30/2025 — no HOV access in 2026. Only one DEQ rebate path (standard or Charge Ahead).
~3–5 mi/kWh typical BEV
~0–19 MPG biennial $126 → $63/yr
CT EV surcharge = $0 (2026). EV/PHEV skip Clean Air fee.
>8,550 lb personal pickup may use §14-47 commercial rates
70% assessment × mills / 1000 (town-specific)
Eversource / UI L2 often up to ~$1,000
NV EV surcharge = $0. EV specialty plate is BEV-only.
Sets GST depreciation age
From county sheet; Clark/Washoe also get +1% GST supplemental
DMV value = 35% × MSRP (NRS 371)
First-time $28.25 · older often $7.25
HOV Clean Air / AFV access ended 9/30/2025. Federal 30D/25E timing depends on delivery date.
Passenger: BEV $165 / PHEV $100 / HEV $70 (eff. Jan 1, 2026)
Passenger base $30 (≤4,500) / $40 (>4,500). Light trucks ≤12,000 use EV flat fees.
Renewals use 12. New/transfer may prorate (K.S.A. 8-134).
State 6.5% + local from sheet
Typically ~$5; varies by county
NEV class is EV-fee exempt even if marked electric
Passenger ≤8k lb: $69 (1–2 yrs) / $57 (3–6) / $45 (7+)
Over 8,000 lb uses §49-434 weight schedule
State 6% + local (max 9%). Auto-fills from county.
County title admin added separately
Idaho has no state EV purchase rebate. Federal 30D generally ended for purchases after 9/30/2025.
BEV/H2 $150; PHEV & EV motorcycle $75 (LB1317 / Jan 2025)
Plate $4.10 on new/used only (not renewal)
Passenger base $15. Trucks use weight tiers (e.g. 6,001–8,000 lb = $25).
State 5.5% + local from sheet
e.g. LES ~$500 smart charger; OPPD programs vary
Nebraska has no state EV purchase rebate or tax credit.
Maine has no EV registration surcharge or mileage tax (2026).
Excise mill rate declines with age (2.40% → 0.40%).
Municipal excise uses original MSRP, not sale price.
29-A §603 — due on new/used, not renewal
Up to ~$5,000–$7,000 new EV with off-peak charger (if eligible)
Maine has no state income-tax credit for EV purchase. No sales-tax exemption for EVs.
Flat annual surcharge only — no WV mileage / RUC tax.
Class 3–4 levy from sheet (personal property tax)
Assessed at 60% of this value × levy rate
e.g. APCo charger rebate (~$250) if eligible
West Virginia has no state EV purchase rebate. Federal 30C home charger credit may apply through 6/30/2026.
WV average ~16,876 mi/yr
≈30 kWh/100 mi default
Class 1 BEV $130 / PHEV $70 (≤6,000 lb)
Age tiers: 0–4 / 5–10 / 11+ years
Sets EV fee class (1–4)
+$825 if MSRP > $150k and ≤10 yr old
Optional; max 0.7% of value (61-3-537)
Montana has no state EV purchase rebate. Public charger electricity tax is 3¢/kWh (15-70-802) — not applied to home charging.
≈33.7 kWh/100 mi (100 MPGe)
Public supply may include 3¢/kWh charger tax
≈$217 + parks/forest for new ICE
EVs renew biennially (no permanent registration)
≤5k $180 · 5–12k $268 · 12–18k $516 · >18k $662 (biennial)
Typically $15 if recording a lien
Anchorage MVRT repealed; enter borough tax if applicable
Anchorage/Fairbanks ICE ~$2; BEVs exempt
e.g. Alaska Power & Tel ~$500 if eligible
Alaska has no statewide sales tax and no state EV purchase credit in 2026.
≈30 kWh/100 mi default
≈$180 biennial ÷ 2
Only BEVs get the $40 Class V rate (not PHEVs)
Excise tiers: ≤3,499 / 3,500–4,999 / ≥5,000. BEVs −1,000 lb after year 2.
DC infrastructure credit = 50% up to $1,000 (expires 12/31/2026)
DC has no EV purchase rebate. No per-mile EV fee. Emissions inspection waived for BEVs.
DC average VMT is low (~4,600); default 8,000
Annual surcharge effective Jan 1, 2026 (no per-mile EV fee)
Override if your DMV notice differs (motorcycle default $23)
PowerUp RI residential rebate typically up to $1,000–$1,500
RI average VMT ≈ 10,000 mi/yr
State OER: L2 $0.28 · DCFC $0.39
Default $89 annual / $163 biennial (auto-updates with period)
Optional; varies by town (~1–2% of value)
Default 12,000 (VT rural drivers often higher)
BEVs pay RUC (not the old $50 alt-fuel line). Maui adds $100 EV / $50 hybrid.
State: 1.75¢/lb ≤4k; 2¢ 4–7k; 2.25¢ >7k. Plus county ¢/lb.
Flat $50 option ends 6/30/2028; then RUC only.
State GET 4% + county surcharge (e.g. Honolulu 0.5%)
Up to $500/port (L2) through 6/30/2026 — enter if claimed
Hawaii has no state EV purchase tax credit. EVs keep HOV lane use and free government parking (HRS §291-71).
Age 5+ uses reduced base fee
≤2k / 2–3k / >3k classes. >26k uses WDT.
No NM state EV purchase rebate. Federal 30D/25E generally ended for purchases after 9/30/2025.
Idaho charges battery-electric vehicle owners a flat $140 annual surcharge on top of standard registration fees under Idaho Code Section 49-457. Plug-in hybrids pay $75 per year. Neighborhood electric vehicles are exempt. A typical new passenger EV in Ada County might pay $69 in base registration because the car is one to two years old, plus $140 EV surcharge, plus mandatory fees for emergency medical services, invasive species, and public safety that total $7.25, plus county administrative charges. First-time title adds $14 in state fees plus county title administration. Annual renewal for that same vehicle often reaches about $226 before sales tax. Idaho sales tax runs 6% statewide with local options up to 3% more for a maximum combined rate near 9%. Trade-in value reduces the taxable purchase price. Idaho offers no state EV purchase rebate. Registration fees serve in lieu of personal property tax on vehicles. This guide explains every statutory fee, tax rule, truck weight schedule, exemption, and calculation step in plain language so you can estimate the true cost of registering and owning an electric vehicle in Idaho in 2026.
Idaho enacted electric vehicle registration surcharges effective 2015 and amended them in 2017. The legislature designed these fees to replace gasoline tax revenue lost when drivers fuel with electricity instead of taxed fuel at the pump. Revenue flows into Idaho’s highway distribution account, split 60% to state highways and 40% to local roads.
The $140 annual BEV surcharge is fixed regardless of vehicle weight for passenger cars under 8,000 pounds. Combined with age-based base registration, a newer EV owner pays roughly $209 to $225 per year in registration-related fees before sales tax at purchase. A gasoline car of the same age pays only $69 in base registration plus the same $7.25 in mandatory supplemental fees, or about $76 total.
Idaho fees sit between neighboring states. Montana and Wyoming use different structures. Oregon charges much higher MPG-tiered fees for battery-electric vehicles. Utah and Nevada have their own EV surcharge models. Understanding Idaho’s age-based passenger schedule plus flat EV add-on helps you budget accurately whether you buy new in Boise, import a used EV from out of state, or register a commercial electric truck.
EV and PHEV Annual Surcharges (Idaho Code §49-457)
Section 49-457 imposes annual fees on electrified vehicles in addition to all standard registration fees. These apply at initial registration and each renewal.
| Vehicle type | Annual surcharge | Notes |
|---|---|---|
| All-electric (BEV) | $140 | Passenger and truck |
| Plug-in hybrid (PHEV) | $75 | Grid-chargeable hybrid |
| Neighborhood electric vehicle (NEV) | $0 | Exempt |
| Conventional hybrid (HEV) | $0 | Not separately surcharged |
| Gasoline / diesel (ICE) | $0 | Standard fees only |
Electric motorcycles follow motorcycle registration rules; the EV surcharge applies based on vehicle classification under Idaho Transportation Department guidance. Confirm classification with your county assessor motor vehicle office for unusual vehicle types.
Example 1: New BEV Annual Renewal (Ada County)
Scenario: 2025 model year EV, age 1–2 years in 2026, Ada County.
Base registration (age 1–2): $69.00 EV surcharge: $140.00 County registration admin: $9.50 EMS fee: $1.25 Invasive Species fee: $3.00 Project Choice fee: $3.00 ────────────────────────────────────────── Annual renewal total: $225.75
Example 2: PHEV vs. BEV (Same Age, Same County)
BEV renewal (Example 1): $225.75 PHEV renewal (same base, $75 fee): $160.75 Gasoline car (no EV fee): $85.75 BEV pays $140/yr more than ICE PHEV pays $75/yr more than ICE
References:
- Idaho Code §49-457 — electric vehicle registration fees
- Idaho Transportation Department — registration fee fact sheets
- 2015 enactment and 2017 amendments to §49-457
Passenger Car Base Registration by Age
For private passenger vehicles weighing 8,000 pounds or less, Idaho uses vehicle age rather than weight to set the base registration fee. Idaho Code Section 49-433 and ITD publications summarize the schedule.
| Vehicle age | Annual base fee |
|---|---|
| 1–2 years old | $69 |
| 3–6 years old | $57 |
| 7 or more years old | $45 |
Age is calculated from model year to the current registration year. A 2024 model registered in 2026 is typically two years old and falls in the $69 bracket. A 2017 model in 2026 is nine years old and pays $45 base registration.
Motorcycles pay $19 base registration plus a $6 motorcycle safety program fee for a total of $25 before any EV classification questions.
Example 1: Used 2017 EV SUV (Age 9+)
Base registration (7+ years): $45.00 EV surcharge: $140.00 Mandatory supplemental fees: $7.25 County admin (Idaho County ~$5): $5.00 ────────────────────────────────────────── Annual renewal (approx.): $197.25
Example 2: Aging BEV Over Time
Years 1–2: $69 + $140 + fees ≈ $226/yr Years 3–6: $57 + $140 + fees ≈ $214/yr Years 7+: $45 + $140 + fees ≈ $202/yr Base fee drops $12–$24 over time; EV surcharge stays $140 throughout
References:
- Idaho Code §49-433 — passenger vehicle registration
- ITD — private auto registration fee schedule
Trucks and Vehicles Over 8,000 Pounds
Vehicles over 8,000 pounds gross vehicle weight use weight-based fees under Idaho Code Section 49-434 rather than the passenger age schedule. The EV surcharge still applies on top of the weight-based base fee.
Noncommercial and farm trucks (selected brackets)
| GVW range (lbs) | Annual fee |
|---|---|
| 8,001–16,000 | $48.00 |
| 16,001–26,000 | $61.08 |
| 26,001–30,000 | $91.68 |
| 30,001–40,000 | $130.08 |
Commercial trucks (selected brackets)
| GVW range (lbs) | Annual fee |
|---|---|
| 16,001–26,000 | $143.40 |
| 26,001–30,000 | $223.80 |
| 30,001–40,000 | $291.60 |
Example 1: Electric Pickup (18,000 lb, Noncommercial)
Weight fee (16,001–26,000 lb): $61.08 EV surcharge: $140.00 Title + county + mandatory fees: ~$30.00 ────────────────────────────────────────── First registration (approx.): $231.00
Weight schedule controls base fee; age brackets do not apply above 8,000 lb.
Example 2: Commercial EV Truck (30,000 lb)
Commercial weight fee: $291.60 EV surcharge: $140.00 Standard supplemental + county: ~$20.00 ────────────────────────────────────────── Annual registration (approx.): $451.60
References:
- Idaho Code §49-434 — weight-based registration fees
- ITD — truck registration fee fact sheet
Title Fees and Mandatory Surcharges
Every new Idaho title carries a $14 state title fee, allocated $11 to state highway revenue and $3 to county expense. Counties add title administration fees that vary by location.
County examples (title and registration admin)
| County | Title admin | Reg. admin |
|---|---|---|
| Ada (Boise area) | $7.00 | $9.50 |
| Bonner | $10.00 | Varies |
| Canyon | ~$12.00 | ~$12.00 |
| Idaho County | ~$5.00 | ~$5.00 |
Mandatory fees on every registration
| Fee | Amount | Purpose |
|---|---|---|
| Emergency Medical Services (EMS) | $1.25 | State and county EMS funds |
| Idaho Invasive Species (ISP) | $3.00 | State parks / invasive species |
| Project Choice | $3.00 | State police public safety |
| Motorcycle safety (motorcycles only) | $6.00 | Additional to motorcycle base |
Example 1: First-Time BEV Title (Ada County)
State title fee: $14.00 Ada County title admin: $7.00 Base registration: $69.00 EV surcharge: $140.00 Ada registration admin: $9.50 EMS + ISP + Project Choice: $7.25 ────────────────────────────────────────── First registration DMV total: $246.75 (excludes sales tax)
Example 2: Personalized Plate (Optional)
Standard plate: $0.00 Personalized plate (initial): $25.00 Personalized renewal (each year): $15.00 Specialty plate (initial example): $35.00
References:
- Idaho Code Title 49 — title and plate provisions
- ITD — county fee schedule publications
- County assessor motor vehicle offices — local admin fees
Idaho Sales Tax and Trade-In Credit
Idaho imposes a 6% state sales or use tax on motor vehicle purchases. Local jurisdictions may add up to 3% more. Ada County often combines near 7% total. Some areas reach the 9% maximum when city and county local option taxes stack.
Tax applies to purchase price minus trade-in allowance under Idaho Code Title 63. Idaho provides no EV-specific sales tax exemption. Payment of registration fees constitutes an exemption from separate personal property tax on vehicles.
Example 1: $60,000 EV With $10,000 Trade-In (Ada ~7%)
Purchase price: $60,000.00 Trade-in credit: -$10,000.00 Taxable value: $50,000.00 Combined tax (~7%): $3,500.00 Plus first registration (~$247): $246.75 ────────────────────────────────────────── Upfront tax + DMV: ~$3,747.00 (excludes vehicle net price)
Example 2: $35,000 Used EV, No Trade-In (6% State Only)
Taxable value: $35,000.00 Sales tax (6%): $2,100.00 Registration + title (approx.): $216.00 ────────────────────────────────────────── Total due at registration: ~$2,316.00
Federal tax credits: The new clean vehicle credit (IRC §30D) generally ended for acquisitions after September 30, 2025. Used clean vehicle credit (IRC §25E) up to $4,000 may apply for qualifying used EV purchases. Home charger credit (IRC §30C) up to $1,000 runs through June 30, 2026 for qualifying equipment. Idaho offers no state purchase rebate.
References:
- Idaho Code Title 63 — sales and use tax
- Idaho Tax Commission — motor vehicle tax guidance
- Internal Revenue Service — IRC §30D, §25E, §30C
Electricity Rates and Charging Costs
Idaho residential electricity averaged roughly 11 to 12 cents per kilowatt-hour in recent EIA data, among the lower rates in the United States. Idaho Power and Rocky Mountain Power serve most of the state. Typical battery-electric efficiency runs about 3.0 to 3.3 miles per kilowatt-hour. Home charging efficiency is about 85 to 90%.
Example 1: BEV Home Charging, 12,000 mi/yr, 3.2 mi/kWh, 11¢
Battery kWh needed: 12,000 ÷ 3.2 = 3,750 kWh Grid kWh (90% efficiency): 3,750 ÷ 0.9 = 4,167 kWh Cost at $0.11/kWh: $458.37/yr Cost per mile: 3.8¢/mi
Example 2: BEV vs. Gasoline (Same Miles)
BEV energy (Example 1): ~$458/yr ICE (25 MPG, $3.25/gal): 480 gal = $1,560/yr Fuel savings: ~$1,102/yr Minus $140 EV registration fee: ~$962/yr net (vs. ~$86/yr ICE registration)
Idaho’s low electricity rates strongly favor EV operating economics despite the $140 surcharge.
References:
- U.S. Energy Information Administration — Idaho electricity profile
- Idaho Power and Rocky Mountain Power — residential rate schedules
How the Idaho EV Fee Calculator Works
An Idaho total cost calculator combines age-based or weight-based registration, EV surcharge, title and county fees, mandatory surcharges, sales tax, and energy costs.
Step-by-step logic
- Classify vehicle: passenger (≤8,000 lb), truck by GVW, or motorcycle
- Determine base fee: age brackets for passenger; §49-434 table for heavier vehicles
- Add EV surcharge: $140 BEV, $75 PHEV, $0 NEV or ICE
- Add title fee: $14 state plus county title admin on first registration
- Add county registration admin from county lookup
- Add mandatory fees: EMS $1.25, ISP $3, Project Choice $3; motorcycle +$6
- Compute sales tax: (price minus trade-in) × (6% plus local rate)
- Add optional plate fees if personalized or specialty selected
- Calculate energy costs separately for total ownership
Recommended calculator defaults
| Input | Default | Notes |
|---|---|---|
| BEV surcharge | $140/yr | §49-457 |
| PHEV surcharge | $75/yr | Statutory |
| Base reg (age 1–2) | $69 | Passenger |
| State sales tax | 6% | Plus local up to 3% |
| Ada County combined tax | 7% | Example metro |
| Annual miles | 12,000 | |
| Electricity rate | 11¢/kWh | Idaho average |
| Mandatory surcharges | $7.25 | EMS + ISP + Project |
Complete Vehicle Scenarios (2026)
| Profile | Price | Year 1 DMV | Sales tax | Energy/yr | Annual renewal |
|---|---|---|---|---|---|
| New BEV sedan (Ada) | $60,000 | ~$247 | ~$3,500* | ~$458 | ~$226 |
| Used BEV SUV (2017) | $35,000 | ~$216 | ~$2,100 | ~$458 | ~$197 |
| PHEV lease (Canyon) | $40,000 | ~$179 | Monthly | ~$550** | ~$161 |
| EV truck (18,000 lb) | N/A | ~$231 | Varies | ~$600 | ~$218 |
*7% combined with $10,000 trade-in on $60,000 purchase. **PHEV includes gas portion estimate. Renewal excludes title fee.
Complete First-Year Picture: New BEV, Boise (Ada County)
Scenario: 2026 EV sedan, $60,000 purchase, $10,000 trade-in, 7% combined tax.
SALES TAX Taxable: $50,000 × 7%: $3,500.00 DMV (FIRST REGISTRATION) Base + EV + title + county + mandatory: $246.75 ENERGY (YEAR 1, 12k mi, 11¢): ~$458.00 ────────────────────────────────────────── Year 1 cash outlay (excl. vehicle): ~$4,205.00 Year 2+ recurring (reg + energy): ~$684.00/yr
Out-of-State Transfer: 2021 EV Truck to Twin Falls
Weight fee (18,000 lb): $61.08 EV surcharge: $140.00 Title + Twin Falls admin (est.): $16.00 County reg admin + mandatory: ~$18.50 ────────────────────────────────────────── Registration total: ~$235.58 (Sales tax may apply if no credit for tax paid in prior state)
Idaho 2026 quick reference
| Item | Amount | Notes |
|---|---|---|
| BEV annual surcharge | $140 | §49-457 |
| PHEV annual surcharge | $75 | Statutory |
| NEV surcharge | $0 | Exempt |
| Passenger base (1–2 yr) | $69 | By age |
| Passenger base (7+ yr) | $45 | By age |
| State title fee | $14 | Plus county admin |
| Mandatory surcharges | $7.25 | EMS + ISP + Project |
| State sales tax | 6% | Up to 9% combined |
| Personal property tax | None | Reg fee in lieu |
| State EV rebate | None | As of 2026 |
| VMT / road-use charge | None | No mileage tax |
Policy Timeline
- 2015: Idaho Code §49-457 enacted; EV registration surcharges begin
- 2017: Statute amended; fee structure clarified
- 2025: SB 1065 and similar bills discussed optional mileage reporting; no VMT fee enacted
- September 2025: Federal new EV purchase credit generally ends for most acquisitions
- 2026: BEV $140 and PHEV $75 surcharges remain unchanged
Common Questions
How much is the Idaho EV fee in 2026?
Battery-electric vehicles pay $140 per year in addition to base registration and mandatory surcharges. A newer passenger EV typically pays about $226 per year total at renewal in Ada County.
Do plug-in hybrids pay less?
Yes. PHEVs pay $75 per year versus $140 for battery-electric vehicles.
Are neighborhood electric vehicles charged the EV fee?
No. NEVs are exempt from the Section 49-457 surcharge.
Do conventional hybrids pay an extra fee?
No separate hybrid surcharge applies to non-plug-in hybrids under current Idaho law.
How is passenger registration calculated?
Vehicles 8,000 pounds or less use age-based fees: $69 for 1–2 years old, $57 for 3–6 years, $45 for 7 or more years.
Does Idaho have sales tax on EVs?
Yes. Standard 6% state tax plus local options apply. Trade-in value reduces the taxable amount.
Is there a property tax on vehicles?
No separate personal property tax. Registration fees serve in lieu of property tax on motor vehicles.
Edge Cases and Assumptions
Partial-year registration: Idaho generally issues 12-month registrations and does not routinely prorate passenger fees for mid-year purchases.
Out-of-state transfers: Vehicles must be titled in Idaho when establishing residency. Sales tax credit may apply if tax was paid elsewhere; confirm with Idaho Tax Commission.
Leased vehicles: Lessee or lessor may pay registration; sales tax on leases may apply to monthly payments depending on lease structure.
Farm vehicles: Certain farm vehicles have exemptions under Section 49-402; specialized rules apply.
IRP commercial fleets: Interstate carriers use International Registration Plan apportionment instead of standard state weight fees plus $8 per vehicle miscellaneous fee.
Late renewal: Late registration is an infraction; vehicles may be impounded. No flat statutory late dollar fee; renew on time.
Where the Numbers Come From
EV surcharge amounts come from Idaho Code Section 49-457. Base and weight fees follow Sections 49-433 and 49-434 and ITD fee fact sheets. County administrative fees come from ITD county fee publications and assessor offices. Sales tax rates follow Idaho Code Title 63 and Idaho Tax Commission guidance. Electricity data uses EIA Idaho averages. Review statutes annually after the legislative session for changes.
References:
- Idaho Code §49-457, §49-433, §49-434
- Idaho Transportation Department — registration fee schedules
- Idaho Tax Commission — sales and use tax
Key Takeaways for Idaho EV Owners
Idaho imposes a flat $140 annual surcharge on battery-electric vehicles and $75 on plug-in hybrids under Section 49-457. Add age-based passenger registration of $45 to $69, mandatory surcharges of $7.25, and county admin fees for typical annual renewal near $200 to $226 in urban counties.
First-time registration adds a $14 title fee plus county title administration. Sales tax at 6% plus local options applies to purchase price minus trade-in. Idaho has no state EV rebate and no vehicle property tax separate from registration.
Low Idaho electricity rates often produce strong fuel savings versus gasoline, which helps offset the $140 surcharge. Model your county for local tax and admin fees, vehicle age for base registration, and weight if above 8,000 pounds. Confirm all amounts with your county assessor motor vehicle office and Idaho Tax Commission before registering.
Disclaimer: This guide is for education and estimation only. Idaho fees, county admin charges, tax rates, and utility tariffs change. Verify all amounts with ITD, your county assessor, and the Idaho Tax Commission before completing a transaction.
Complete Reference List
Idaho law and agencies
- Idaho Code §49-457 — electric vehicle registration fees
- Idaho Code §49-433 — passenger vehicle registration
- Idaho Code §49-434 — weight-based registration fees
- Idaho Code §49-402 — exemptions including farm vehicles
- Idaho Code Title 63 — sales and use tax
- Idaho Transportation Department — motor vehicle registration publications
- Idaho Tax Commission — motor vehicle sales tax guidance
- County assessor motor vehicle offices — local admin fee schedules
Utilities, federal, and market data
- Idaho Power — EV programs and rate schedules
- Rocky Mountain Power — residential rates
- U.S. Energy Information Administration — Idaho electricity profile
- Internal Revenue Service — IRC §30D, §25E, §30C
- U.S. DOE Alternative Fuels Data Center — Idaho laws and incentives
- U.S. EPA — MPGe and fuel economy labels
Article prepared for the EV Fee Calculator project’s Idaho educational content. Figures reflect 2026 statutory rates under Idaho Code Title 49, ITD fee schedules, and illustrative ownership calculations unless otherwise noted.