How to Fill Out Form 8910: Alternative Motor Vehicle Credit

To fill out Form 8910 for the alternative motor vehicle credit, you identify your new qualified fuel cell vehicle by year, make, model, and VIN, copy the tentative credit amount from the manufacturer’s certification, apply your business-use percentage to divide the credit into a business portion and a personal portion, and then carry those two portions to Form 3800 and Schedule 3 respectively. The form itself is short. The traps are in the split and in what happens to any part of the credit your tax liability can’t absorb.

Make Sure Form 8910 Is Actually Your Form

Form 8910 claims the credit under 26 USC §30B, and by the time you’d reach for it today, that means one thing: a new qualified fuel cell vehicle powered by a system that converts hydrogen and oxygen directly into electricity. Hybrids and lean-burn vehicles that once qualified under §30B have expired from eligibility.¹

A new plug-in electric vehicle, or a fuel cell vehicle that qualifies under the separate clean vehicle credit at §30D, goes on Form 8936 instead. The commercial clean vehicle credit under §45W is a different form and program again. Confirm which credit your purchase actually falls under before you start filling anything in.

What You Need in Front of You

Before you touch the form, pull together:

The manufacturer’s certification for your vehicle’s make, model, and model year, which states the tentative credit amount. You can generally rely on this as your authority for the credit figure.²
The 17-character VIN, from the registration, title, insurance paperwork, or the vehicle itself.
Mileage records, if the vehicle was used for anything other than 100% business or 100% personal.
Any Schedule K-1 reporting an alternative motor vehicle credit passed through from a partnership (Form 1065, box 15, code P) or S corporation (Form 1120-S, box 13, code P).²

You also have to be able to say yes to the eligibility basics: original use of the vehicle began with you (used doesn’t count), you acquired it for your own use or to lease to others rather than to resell, you placed it in service during the tax year you’re claiming, and you use it primarily in the United States. The vehicle must have at least four wheels, be built primarily for use on public roads, and meet applicable emissions and safety standards.²

Walking Through the Form

Lines 1 and 2: Identify the Vehicle

Line 1 takes the year, make, and model. Line 2 takes the VIN. Copy it exactly. A single transposed character can delay processing or generate a notice.²

Line 4: Tentative Credit

Enter the tentative credit amount that appears on the manufacturer’s certification. You are not calculating this from GVWR and fuel economy tables yourself. The manufacturer has already done that work under §30B, and the certification is what you rely on.² For a typical light fuel cell passenger vehicle, that amount is $8,000; heavier commercial fuel cell vehicles can reach up to $40,000.³

Line 5: Business or Investment Use Percentage

If you use the vehicle entirely for business, enter 100%. If use is mixed, divide miles driven for business or income-producing activity (not counting commuting) by total miles driven during the year. That percentage will do the heavy lifting on the split later in the form.

Line 8: Pass-Through Credits

If a partnership or S corporation passed an alternative motor vehicle credit to you on a Schedule K-1, report that amount on line 8.²

If a K-1 is your only source for this credit and you did not place a vehicle in service yourself, you don’t need to file Form 8910 at all. Report the credit directly on Form 3800, Part III, line 1r.

How the Business and Personal Split Works

The line 5 percentage does more than adjust a number. It sorts your credit into two categories that follow different rules.

The portion tied to business or investment use is a general business credit. It goes on Form 3800, Part III, line 1r.² The portion tied to personal use is a personal credit that applies directly against your income tax liability through Schedule 3 on your Form 1040.¹

Use the vehicle 70% for business and 30% for personal purposes, and 70% of the tentative credit flows to Form 3800 while 30% applies as a personal credit. Same total, two very different sets of rules attached.

What Happens to Unused Credit

The credit is nonrefundable. It can zero out your tax bill but never produce a refund beyond tax you’ve already paid. Beyond that, the two portions part ways sharply.

The personal portion is use-it-or-lose-it. If your tax liability in the year you place the vehicle in service isn’t large enough to absorb the personal portion, the unused amount is gone. It cannot be carried back or forward.² If you bought a fuel cell vehicle mainly for personal use and you’re heading into an unusually low-income year, a projection before year-end will tell you whether some of the credit is about to evaporate.

The business portion follows the general business credit carry rules at 26 USC §39. Anything you can’t use this year can be carried back one year and forward up to 20 years, applied to the earliest available year first.⁴

If You File as a Partnership or S Corporation

Partnerships and S corporations that place a qualifying fuel cell vehicle in service file Form 8910 at the entity level. The credit then passes through to partners or shareholders on Schedule K-1.² The individual owners pick it up on Form 3800 rather than completing a fresh Form 8910.

Attaching the Form and Keeping Your Records

Attach the completed Form 8910 to your annual return, typically Form 1040. The personal portion routes through Schedule 3; the business portion routes through Form 3800.¹

Don’t attach the manufacturer’s certification, but keep it. If the IRS questions the credit, the certification is your primary proof that the vehicle qualifies and that the tentative credit figure on line 4 is right. Keep the purchase agreement, VIN documentation, and mileage logs too. Where the business-personal split is anything other than 100% one way, mileage records are what an examiner will look at first.

1
Internal Revenue Service. About Form 8910, Alternative Motor Vehicle Credit
2
Internal Revenue Service. Instructions for Form 8910
3
Office of the Law Revision Counsel. 26 USC 30B – Alternative Motor Vehicle Credit
4
Office of the Law Revision Counsel. 26 USC 39 – Carryback and Carryforward of Unused Credits