Buying a vehicle for your business has always offered potential tax savings—but the rules changed in 2025.
The One Big Beautiful Bill Act (OBBBA) permanently restored 100% bonus depreciation for qualifying property placed in service after January 19, 2025.
For many businesses, this means much larger first-year deductions are back on the table.
However, not every vehicle qualifies for a full write-off. The actual deduction depends on several factors:
- The vehicle’s weight (GVWR)
- Whether it is considered a passenger vehicle
- The percentage of business use
- Whether Section 179 or bonus depreciation is applied
This guide explains how the 2025 rules work, what changed under the new law, and how to plan a vehicle purchase strategically.
How Vehicle Depreciation Works
When your business buys a vehicle, the IRS usually requires the cost to be deducted over several years rather than immediately.
This is called depreciation.
Most business vehicles are depreciated under:
- MACRS (Modified Accelerated Cost Recovery System)
- IRC §168 – Accelerated Cost Recovery System
In plain English: Instead of deducting the full cost right away, the IRS normally spreads the deduction across multiple years.
But two provisions allow businesses to accelerate those deductions:
- Section 179 expensing (IRC §179)
- Bonus depreciation (IRC §168(k))
And this is where the 2025 law change matters.
Major 2025 Change: 100% Bonus Depreciation Is Back
Before 2025, bonus depreciation was phasing out.
The new law reverses that phase-out and permanently restores 100% bonus depreciation for qualifying property acquired after January 19, 2025.
That means many businesses can deduct the full cost of qualifying equipment and vehicles in the first year.
However, passenger vehicles are still subject to depreciation caps under IRC §280F.
2025 Depreciation Limits for Passenger Vehicles
Tax Code Reference: IRC §280F(a) — Limitation on Depreciation for Luxury Vehicles
Vehicles under 6,000 pounds GVWR are generally treated as passenger automobiles.
These vehicles are subject to the “luxury auto depreciation limits”.
This applies to most cars and smaller SUVs, not just luxury vehicles.
2025 Passenger Vehicle Depreciation Limits
If bonus depreciation is claimed, the IRS limits are approximately:
Year Maximum Deduction
- Year 1 $20,200
- Year 2 $19,600
- Year 3 $11,800
- Year 4+ $7,060
If bonus depreciation is not claimed, the first-year cap drops to about $12,200.
What This Means
Even though 100% bonus depreciation is back, passenger vehicles cannot be fully written off in year one.
The IRS caps the deduction.
Example: Passenger Vehicle Deduction
A business owner purchases a $65,000 SUV in 2025.
- GVWR: 5,500 lbs
- Business use: 100%
Even with bonus depreciation:
Year-one deduction is limited to about $20,200.
The remaining cost must be depreciated over later years.
The 6,000-Pound Vehicle Rule
Vehicles with a GVWR over 6,000 pounds are treated differently under the tax code.
These vehicles avoid the passenger depreciation caps.
Examples include:
- Heavy pickup trucks
- Large SUVs
- Cargo vans
- Work trucks used in construction or trades
Because they avoid the IRC §280F limits, they may qualify for much larger first-year deductions.
Section 179 Rules for Heavy SUVs
Section 179 allows businesses to expense certain assets immediately.
But SUVs between 6,000 and 14,000 pounds GVWR have a special cap.
2025 Section 179 SUV Limit
Maximum deduction: $31,300
After the Section 179 deduction, the remaining vehicle cost may qualify for 100% bonus depreciation.
Example: Heavy SUV Deduction
A remodeling company buys an $85,000 SUV in 2025.
- GVWR: 6,200 lbs
- Business use: 100%
Potential deductions:
- Section 179: $31,300
- Remaining basis: $53,700
- Bonus depreciation (100%): $53,700
- Total possible year-one deduction: $85,000
Pickup Trucks and Cargo Vans
Certain vehicles can qualify for full first-year expensing without the SUV limits.
Examples may include:
- Cargo vans
- Work vans
- Heavy pickup trucks
- Dump trucks
- Box trucks
If these vehicles meet the requirements, the entire cost may qualify for 100% bonus depreciation.
Business Use Requirements
To qualify for accelerated deductions:
The vehicle must be used more than 50% for business purposes.
If business use falls to 50% or less in later years:
- Section 179 deductions may be recaptured
- Depreciation methods may change
Example
A vehicle used:
- 80% business
- 20% personal
Only 80% of the purchase price can be depreciated.
Recordkeeping Requirements
Tax Code Reference: IRC § 274(d) — Disallowance of Certain Expenses
Vehicle deductions are a common audit target.
The IRS requires substantiated mileage records under IRC §274(d).
Good documentation includes:
- Date of trip
- Business purpose
- Start and end locations
- Odometer readings
In plain English: If you can’t prove business use, the deduction may be denied.
Timing Your Purchase Matters
Vehicle deductions depend on when the vehicle is placed in service, not when it is purchased.
For example:
- Buying a vehicle in December
- But using it for the first time in January
…may shift the deduction to the next tax year.
With 100% bonus depreciation now permanent, timing purchases strategically can significantly impact cash flow.
Should You Buy a Vehicle for the Tax Deduction?
Tax deductions can help—but they shouldn’t be the only reason to buy a vehicle.
A simple reality check:
A $70,000 vehicle purchase to save $25,000 in taxes still costs $45,000.
That’s because a write-off only deducts your taxable income, not the tax you owe.
The better question is:
Does the vehicle improve your business operations?
Tax planning should support the business—not drive the decision.
Next Steps for Business Owners
If you’re considering purchasing a business vehicle, take these steps first:
- Check the GVWR of the vehicle: The 6,000-pound threshold dramatically affects deductions.
- Estimate your business-use percentage
- Compare Section 179 vs bonus depreciation
- Consider timing your purchase
- Coordinate the deduction with your overall tax strategy
Vehicle purchases can create large deductions—but only if planned correctly.
Need Help Planning a Vehicle Deduction?
At Pineda Bookkeeping & Tax Services, we help business owners evaluate major purchases before they happen.
We can help you:
- Estimate the actual first-year vehicle deduction
- Determine whether Section 179 or bonus depreciation makes sense
- Structure the purchase to maximize tax efficiency
- Ensure your documentation is IRS-compliant
Because when it comes to tax planning, the best deductions are the ones planned before the purchase—not after.
