Electric Car Tax Deduction for Business Use

What Happened to the Federal EV Tax Credit

The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, repealed the three Inflation Reduction Act clean vehicle credits:

• Section 30D (new clean vehicle credit, up to $7,500) — ended for vehicles acquired after September 30, 2025
• Section 25E (used clean vehicle credit, up to $4,000) — same cutoff date
• Section 45W (commercial clean vehicle credit) — same cutoff date

If you purchased an EV before the deadline, you may still claim those credits on your 2025 return. For everyone else, the playbook has changed. The good news: the business deductions below were never tied to those credits, and several of them actually got more generous under the same law.

Section 179: Deduct the Purchase Price Up Front

Section 179 lets you expense the cost of a business vehicle in the year you place it in service instead of depreciating it over five years. For 2026, the overall Section 179 deduction limit is $2,560,000 with a phase-out starting at $4,090,000 in total qualifying property.

The per-vehicle cap depends on weight:

Light EVs (under 6,000 lbs GVWR) — Most sedans and smaller SUVs fall here. The Section 179 first-year cap is $12,200. Combined with the $8,000 bonus depreciation add-on for passenger vehicles, you can deduct up to $20,200 in year one. Examples: Tesla Model 3, Chevrolet Equinox EV, Hyundai Ioniq 6.

Heavy EVs (6,001 – 14,000 lbs GVWR) — Larger SUVs and trucks qualify for a higher cap of $32,000 under Section 179 alone. You can then apply 100% bonus depreciation to the remaining depreciable basis with no dollar limit, potentially writing off the entire vehicle. Examples: Rivian R1S, GMC Hummer EV, Cadillac Escalade IQ.

Vehicles over 14,000 lbs GVWR — Treated like equipment. No passenger-vehicle cap applies. Full Section 179 deduction up to the $2,560,000 annual limit.

The vehicle must be used more than 50% for business, and your deduction is prorated to your actual business-use percentage. A $60,000 EV used 80% for business has a depreciable basis of $48,000 for Section 179 purposes.

For a deeper comparison of Section 179 versus the mileage method, see our full breakdown in Section 179 Deduction vs Standard Mileage Rate.

100% Bonus Depreciation Is Back

Before the OBBBA, bonus depreciation was phasing down — it would have been just 20% in 2026 under the old schedule. The new law restored 100% bonus depreciation for qualified property acquired after January 19, 2025.

What this means for EV buyers: after you apply Section 179 up to the applicable cap, bonus depreciation can cover the remaining cost. For heavy EVs over 6,000 lbs, you can potentially write off the full purchase price in year one.

Example: You buy a $75,000 electric SUV weighing 6,500 lbs and use it 100% for business. You take the $32,000 Section 179 deduction, then apply 100% bonus depreciation to the remaining $43,000. Your total first-year deduction: $75,000.

Keep in mind that Section 179 is limited by your taxable business income, but bonus depreciation has no such restriction — it can even create a net operating loss you carry forward.

The Standard Mileage Rate: 76 Cents per Mile

Not every business owner wants to track receipts and deal with depreciation schedules. The IRS standard mileage rate offers a simpler alternative: multiply your business miles by the published rate and deduct the total.

2026 uses two business rates. The IRS raised the rate mid-year, so the period you drove in determines the rate you apply:

Source: IRS Standard Mileage Rates.

This rate applies to all vehicle types, including electric. It covers fuel (or electricity), insurance, maintenance, depreciation, and all other operating costs in a single per-mile figure.

Example: An EV owner drives 20,000 business miles across 2026, evenly split. The deduction is (10,000 x $0.725) + (10,000 x $0.76) = $7,250 + $7,600 = $14,850. All 20,000 miles in the second half would instead give 20,000 x $0.76 = $15,200.

When the mileage rate wins:

• You drive a high number of business miles (15,000+)
• Your EV was relatively inexpensive
• You want simple recordkeeping with just a mileage log

When Section 179 wins:

• You bought an expensive EV (especially over 6,000 lbs)
• You need a large deduction in year one
• Your business-use percentage is high

The July rate rise shifts this comparison. EVs already have low per-mile running costs — electricity, no oil changes, minimal brake wear — which is exactly why the flat rate tends to beat tracking real expenses for EV drivers. At 76 cents instead of 72.5, that advantage widens: a driver covering 25,000 business miles in the second half of the year picks up an extra $875 of deduction (25,000 x $0.035) compared with the first-half rate. If you modeled the two methods before July and actual expenses won by a thin margin, rerun it.

Critical rule: If you use Section 179 or bonus depreciation in the first year, you cannot switch to the standard mileage rate for that vehicle in later years. You are locked into the actual expenses method. Conversely, if you choose the standard mileage rate in the first year you own the vehicle, you can switch to actual expenses later.

EV Charging Station Credit — Act by June 2026

One incentive that survived the OBBBA (temporarily) is the Alternative Fuel Vehicle Refueling Property Credit under Section 30C. If your business installs EV charging equipment, you can claim 30% of the cost, up to $100,000 per unit.

The catch: the equipment must be placed in service by June 30, 2026. After that date, the credit expires. If you have been considering a workplace charger, this is the window.

How to Track Electric Car Business Use

Whichever deduction method you choose, the IRS requires you to substantiate your business-use percentage. That means keeping a mileage log that records:

• Date of each trip
• Starting and ending locations
• Business purpose
• Odometer readings or miles driven

For the standard mileage rate, the log is your entire deduction. For Section 179 and actual expenses, the log determines what percentage of costs you can write off. Inaccurate or missing logs are the number-one reason the IRS disallows vehicle deductions during an audit.

An automatic mileage tracker removes the manual work. Download Tripbook to record every business trip in the background and generate IRS-ready reports at tax time.

Electric Car Tax Deduction for Business: Quick Reference

Choosing the Right Electric Car Tax Deduction for Your Business

Run the numbers both ways before you file. Split your business miles at June 30, multiply the first-half miles by $0.725 and the second-half miles by $0.76, and add the two for your mileage rate total. Then calculate your Section 179 plus bonus depreciation amount based on the vehicle price, weight class, and business-use percentage. The higher figure is your answer.

For many business owners buying a new electric vehicle in 2026, the combination of Section 179 and restored 100% bonus depreciation will outperform the mileage rate — especially on heavier EVs where the vehicle cap is $32,000 or nonexistent. For those who already own an EV and simply drive it for work, the mileage rate — 76 cents per mile from July 1 — keeps things straightforward.

Regardless of which path you take, accurate mileage tracking is non-negotiable. Every business trip needs documentation, whether you are claiming per-mile deductions or proving your business-use percentage for depreciation.

Download Tripbook to start logging your electric vehicle business miles automatically.