How many years of losses can I claim before the IRS calls my business a hobby?

There's no hard cutoff, but a common IRS guideline is that an activity is presumed to be a legitimate business if it earns a profit in at least three of the last five tax years. Losses beyond that pattern can raise red flags, though consistent documentation of a real profit motive can still support your business classification.

Can I still deduct any expenses if the IRS classifies my activity as a hobby?

Under current federal tax law, hobby expenses are generally not deductible at the federal level, meaning you'll owe tax on the gross income with no offset for your costs. This makes proper classification — and proactive recordkeeping — especially important before losses accumulate.

Does forming an LLC automatically make my activity a business in the IRS's eyes?

No. Having a formal business entity like an LLC is helpful evidence of businesslike conduct, but it doesn't automatically settle the hobby vs. business question. The IRS still examines your actual profit motive, recordkeeping, and operating history regardless of your legal structure.

Hobby vs. Business: Tax Rules NYC Owners Must Know

You sell handmade jewelry on Etsy. You photograph weddings on weekends. You flip vintage furniture between your day-job shifts. Whether these activities count as a business or a hobby in the eyes of the IRS is not a small question — it can completely change how much tax you owe and which expenses you're allowed to deduct. For NYC freelancers, side-hustlers, and self-employed residents already dealing with city and state taxes on top of federal, getting this wrong can be an expensive mistake.

Why the Hobby vs. Business Distinction Matters So Much

When an activity is classified as a legitimate business, you can deduct ordinary and necessary expenses against the income it generates — things like supplies, equipment, software, and a portion of your home office. If your business runs at a loss, that loss can often offset other income, reducing your overall tax bill.

When the IRS decides your activity is a hobby, the rules change significantly. You still must report all the income — but under current tax law, hobby expenses are generally not deductible at the federal level. That means you could end up paying taxes on gross hobby income with no offset for what you spent to earn it. In New York, similar logic applies at the state and city level.

The IRS "Profit Motive" Test

The IRS doesn't flip a coin. It uses a set of factors to decide whether you genuinely intend to make a profit. No single factor is automatically decisive — the agency looks at the full picture. Key considerations include:

Profit history: A general guideline is that an activity is presumed to be a business if it shows a profit in at least three out of five consecutive years (two out of seven for horse-related activities). This is a presumption only — not a guarantee.
Businesslike conduct: Do you keep separate books and records? Do you have a dedicated business bank account? Do you operate in a professional manner?
Time and effort: How much time do you put in? Do you depend on this income?
Expertise: Have you sought advice, done research, or built skills to improve profitability?
History of losses: Are losses due to startup costs and market conditions, or is there no realistic path to profit?
Personal pleasure: Activities that are inherently enjoyable — art, travel photography, cooking — receive extra scrutiny because the IRS wants to confirm the profit motive is real.

Red Flags That Trigger IRS Scrutiny

Certain patterns tend to attract attention. If your tax return shows repeated losses from the same activity year after year, that is one of the clearest signals the IRS looks for. Other red flags include:

Reporting significant losses that conveniently offset high W-2 income
Little or no recordkeeping to show a business operation
An activity that is closely tied to a personal passion or lifestyle
No marketing, pricing strategy, or effort to become profitable

For NYC residents who already file federal, New York State, and New York City returns, an IRS reclassification can trigger state-level adjustments as well — compounding the problem.

How to Protect Your Business Classification

If you're running a real side business — even a small one — it's worth taking deliberate steps to document that fact. Practical moves include:

Open a separate business bank account and run all income and expenses through it.
Keep organized records — invoices, receipts, mileage logs, and contracts — from day one.
Write a simple business plan outlining how you intend to make a profit, even if it's a few paragraphs.
Track your time spent on the activity to demonstrate effort and seriousness.
Consult a professional when losses pile up so you can document your reasoning and strategy.

What Happens If the IRS Reclassifies Your Activity

If the IRS audits you and reclassifies your business as a hobby, the consequences can include back taxes on previously deducted expenses, plus interest and potential penalties. This is especially painful if you've been deducting losses against your regular salary for multiple years. Acting proactively — rather than waiting for a notice — is almost always the better path.

Talk to a CPA Before It Becomes a Problem

Hobby loss rules are one of those areas where small decisions made early have big consequences later. Whether you're a Queens-based photographer, a Long Island freelance designer, or a Manhattan side-hustler, it pays to have a CPA review your situation before the IRS does.

Li CPA Group works with NYC-area small-business owners, freelancers, and self-employed individuals to make sure their activities are properly documented, their deductions are defensible, and their tax strategy makes sense for their real goals. Call us at (516) 518-6678 to book a free 15-minute consultation — we'll help you figure out where you stand and what to do next.

Hobby vs. Business: How the IRS Decides — and What It Means for Your NYC Taxes