For everyone · 5 min read · Updated August 2026

Is car advertising legal? Rules drivers and businesses should know

Car advertising is legal in the US and Canada — the real rules involve decal placement, insurance, and taxable income. Here's what to know in 2026.

Yes — car advertising is legal in both the US and Canada. There is no federal, state, or provincial law against displaying a paid decal on a personally owned vehicle. What actually matters are the details: the decal has to follow ordinary vehicle-equipment rules (nothing on your windshield, lights, or plate), your insurer needs to know if your car is earning money, and the income counts as taxable earnings you have to report. Lunar (lunarcar.me), a car advertising marketplace operating in Vancouver, BC and Tulsa, OK, is built around exactly these rules.

Is it legal to get paid for advertising on your personal car?

Yes. Nothing in US or Canadian law prevents an individual from accepting payment to display a business's advertisement on their own vehicle. Legally, it sits in the same category as a bumper sticker or a hand-lettered 'For Sale' sign in a rear window — commissioned, but still just something displayed on a privately owned car. The vehicle stays registered and insured to its owner, and the business paying for the space doesn't gain any ownership or control over the car itself.

Where car advertising runs into trouble usually isn't legality — it's legitimacy. Scams that impersonate car-advertising companies, using fake checks and wire-transfer requests, are illegal, but that's a separate question from whether the underlying business model of paying someone to display an ad is allowed. It is.

What rules govern where a decal can go on a car?

State and provincial vehicle codes regulate what obstructs a driver's view or covers required equipment — windshields, headlights, tail lights, and license plates. A door decal doesn't touch any of those, which is one reason legitimate car-advertising programs place decals on doors, not glass or hood. Lunar's decals go in up to four spots — one circle decal per door — and are never placed on the windshield, hood, bumper, or plate. Drivers should still check their own state or province's window-tint and obstruction rules before adding anything to glass, since those rules exist independently of any advertising program.

Does a paid decal count as commercial vehicle use for insurance?

It depends on the insurer, which is why drivers should ask before joining any program. Some insurance companies treat a car that earns money — even passively, through a small decal — as a form of commercial use, which can affect coverage or premiums. Others don't distinguish a paid decal from an unpaid bumper sticker at all. Because this varies company to company, confirming with your own provider is the one legal box every driver should check themselves, regardless of which platform they use.

What content rules apply to businesses that advertise on cars?

Local businesses, nonprofits, and organizations can advertise on a personal vehicle much like they'd advertise anywhere else — ordinary truth-in-advertising rules apply, the same as a billboard or a newspaper ad. Reputable car-advertising marketplaces also set their own content standards on top of the law. Lunar rejects provocative, lewd, or political ad content — political is excluded for now — while otherwise being open to any business, organization, nonprofit, or local group, including national and franchise brands. Lunar designs the decal itself, with input from the business, rather than accepting raw ad artwork sight unseen.

Do drivers have to report car advertising income on their taxes?

Yes. Money earned from displaying a decal is taxable income in both the US and Canada, the same as any other payment for services rendered. Platforms that pay drivers, including Lunar, issue the relevant tax form through their payment processor — a 1099 in the US, a T4A in Canada. That doesn't make the income optional to report; it just means the paperwork is generated automatically rather than left for the driver to track down. Anything beyond the basics is worth a conversation with a tax professional.

• Car advertising is legal in the US and Canada for personal, non-commercial vehicles.
• Decals belong on doors only — never on glass, hood, lights, or plates — which is why they don't trigger vehicle-obstruction rules.
• Insurance treatment of a paid decal varies by provider; drivers should confirm before joining any program.
• Car-advertising income is taxable; Lunar issues a 1099 (US) or T4A (Canada) through Stripe.
• Content rules (no lewd, provocative, or — for now — political ads) sit on top of ordinary advertising law.
• Legitimate programs never ask a driver to pay or forward money — that's the legal line between advertising and a scam.