In the 1990s, a professional musician named Brian Liddle deducted part of the cost of his bass viol — a rare, 17th-century instrument he played every day in orchestras and concerts. The IRS said no. Their reasoning: the instrument wasn’t losing value, it was gaining value. Depreciation, the IRS argued, is supposed to represent an asset wearing out. If anything, the viol was doing the opposite.
The Tax Court disagreed, and so did the appeals court after that. A similar case a few years earlier, involving a violinist named Richard Simon and his antique bows, had already made the same point: whether something is going up in value on the collector’s market has nothing to do with whether it’s allowed to be depreciated for tax purposes. What matters is much simpler; is this a real, physical item, is it used in your business, and does using it wear the thing out?
The court’s actual test came down to four things: the item has to be physical property you can touch, it has to have been placed into service after 1980, you have to use it in your trade or business, and using it has to cause real wear and tear. Nothing in that list mentions whether the item happens to be going up in value at the same time.
That case is about violins. But the exact same logic applies to a business owner who owns a classic car and genuinely uses it for business — and it’s worth understanding both why it works and where people get it wrong.
Yes, In Principle, You Can Depreciate
If you own a classic or collector car and you genuinely use it in your business, you can depreciate it — the fact that it might be worth more in ten years than it is today doesn’t disqualify it. That’s the good news, and it’s a real, court-tested legal principle, not a gray area or a stretch.
But “genuinely use it in your business” is doing a lot of work in that sentence, and this is where things tend to fall apart for classic car owners.
The Part That Actually Matters: Real Use, Not Just Ownership
Go back to the violin cases for a second. The reason those musicians won wasn’t just that they owned valuable old instruments; it’s that they played them, constantly, as their actual job.
A classic car sitting in a showroom as a conversation piece, or parked outside your business as a display, doesn’t meet that bar. Neither does a car you technically “could” use for the business but mostly just enjoy owning. To depreciate a classic car, you need it doing actual work: driving clients around, appearing in your own advertising in a way that’s part of your marketing activity, being used as a working vehicle in a rental or event business, or something similarly concrete and ongoing.
This also means you need to track how much of the car’s use is business use versus personal use. If you drive it to your kid’s soccer game on Saturday, that’s not business use, no matter how good the car looks pulling into the parking lot.
What “Real Business Use” Actually Looks Like
It helps to think through a few concrete examples, since “genuine business use” can sound vague until you see it applied.
A classic-car dealer who drives inventory to car shows, uses a specific restored vehicle in the actual business of buying, showing, and reselling collector cars, has a strong case; that car is doing real work in the business, day in and day out. A wedding or event business that rents out a classic car as part of its service is in a similar position; the car is the product. An entrepreneur who occasionally drives a classic car to meet a client, but mostly keeps it in a garage and drives something else the rest of the time, has a much weaker case; occasional, convenient use doesn’t carry the same weight as use that’s central to how the business actually operates.
The common thread across the cases that held up: the property was doing the same kind of job an ordinary, unremarkable version of that property would do. A cheap violin gets played too. The fact that this one happened to be rare and valuable didn’t change what job it was doing.
Cars Get Extra Rules Violins Don’t
Here’s where classic cars get more complicated than antique instruments. Cars fall into a category the IRS calls “listed property” — a category that comes with its own extra layer of rules, on top of the basic depreciation question the violin cases settled.
The two big ones:
- You need to clear the 50% business-use bar. If you use the car for business more than half the time, you get access to faster depreciation methods. If your business use is 50% or less, you’re stuck with a slower method, and any faster depreciation you already claimed can get clawed back. This isn’t a one-time test. It applies every year you own the car.
- There’s a dollar cap on how much you can depreciate each year, no matter what the car is worth. These are usually called the “luxury auto limits,” but the name is a little misleading — they apply to basically any car, not just expensive ones. A classic car worth a small fortune doesn’t get to skip past these caps just because of its value; the annual amount you can deduct is limited by the same IRS-published numbers as anyone else’s business car.
Both of these rules mean you need a real mileage log; dates, purpose of each trip, business miles versus personal miles, not a rough guess at tax time. For a car this unusual, “I use it for work sometimes” isn’t going to hold up if anyone ever asks.
Records to Keep
If you’re depreciating a classic car, hold onto these — together, they’re what actually backs up the deduction if anyone ever asks:
- Purchase documents: Bill of sale, title, registration, financing records, and proof of payment.
- Placed-in-service date: The date the car was first ready and available for business use.
- Mileage log: Dates, destinations, beginning and ending mileage, total miles, business miles, and personal miles.
- Business purpose: A short explanation for each business trip or use, such as client meeting, event rental, advertising shoot, or business promotion.
- Photos and advertising use: Photos of the vehicle in business settings, website screenshots, social media posts, marketing materials, or branded promotional content.
- Rental or event contracts: Agreements, invoices, receipts, calendars, or booking records showing the vehicle was used in a revenue-generating activity.
- Maintenance records: Repair invoices, restoration costs, insurance records, storage costs, detailing, and service logs.
- Annual business-use percentage: A yearly summary showing total miles, business miles, personal miles, and the resulting business-use percentage.
The stronger the records, the easier it is to show that the vehicle was not just owned by the business, but used in the business.
The Part Almost Nobody Talks About: What Happens When You Sell It
Most articles on this topic skip this part. But it may matter most for a classic car, since it’s likely to be worth more when you sell it than when you bought it.
Every dollar of depreciation you deduct lowers your car’s “basis”; its value on paper, for tax purposes. When you sell for more than that reduced value, part of the gain gets taxed back as ordinary income, not as a lower-taxed capital gain — specifically, any amount up to the depreciation you already claimed. This is called depreciation recapture, and it catches people off guard.
If you buy a classic car for $60,000, use it 70% for business, and claim $20,000 in depreciation, your basis drops to $40,000. Sell it later for $90,000, and your $50,000 gain splits in two; the first $20,000 (matching your depreciation) is taxed as ordinary income, and the remaining $30,000 is generally a capital gain, though that can get complicated when a collectible car is involved, so it’s worth reviewing before the sale, not after.
Depreciation saves you money now, but some of it comes back later, especially with an asset built to appreciate. That doesn’t make it a bad idea. It makes it a decision worth planning for, not an afterthought.
What This Actually Looks Like Done Right
Putting all this together, this is what a defensible classic car deduction requires:
- An ongoing business use for the car, not occasional, not symbolic, not “it could be used for work.”
- A real, contemporaneous mileage log separating business use from personal use, kept as you go, not reconstructed later.
- An honest business-use percentage applied consistently year to year.
- Awareness of the 50% business-use threshold and the annual dollar caps that apply regardless of the car’s value.
- A plan for what happens at sale — specifically, how much of the gain will come back as ordinary income through depreciation recapture, and how that interacts with the car’s appreciation as a collectible.
None of this makes depreciating a classic car impossible. It just makes it something that needs to be set up correctly from day one, with the eventual sale already in view — not something to figure out after an IRS letter shows up, or after the car is already sold and the numbers are locked in.
If you own a classic car you’re using in your business, or you’re thinking about structuring one that way, it’s worth getting the deduction built correctly from the start. At Manay CPA, we help clients set this up so the deduction holds up, documentation, business-use calculations, and the eventual recapture math all planned out together.
Sources
Internal Revenue Service (IRS) | Publication 946, How To Depreciate Property
