If you have a steady W-2 paycheck and a side business you’re working hard to grow, tax season can be a stressful time. You might be wondering if the money your business lost this year can help reduce the taxes you owe on your salary. The short answer is yes, it can. The IRS allows you to work within a legal system to minimize your tax liability, but doing it incorrectly can lead to unwanted attention. Our team has helped hundreds of business owners navigate these rules to lower their taxable income while remaining fully compliant.
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Quick Summary
When your small business spends more than it makes, that loss is more than just a red number on a spreadsheet, it’s a potential tax shield. If you have a pass-through entity, like an LLC or Sole Proprietorship, your business losses flow directly onto your personal tax return. This allows you to deduct those losses against your W-2 wages, effectively lowering the amount of income you’re taxed on. To do this safely, you must prove you are running a legitimate business with a profit motive and that you are actively involved in the day-to-day work.
How it works for you: The Pass-Through Benefit
Most small businesses in the U.S. are what the IRS calls pass-through entities. This includes Sole Proprietorships, Single-Member LLCs, Partnerships, and S Corporations. They are called this because the business itself doesn't pay income tax. Instead, the financial results pass through to your personal tax return.
If you make a $10,000 profit, you pay tax on that $10,000. But if your business has a Net Operating Loss, or NOL, of $10,000, meaning you spent $10k more than you earned, that loss travels to your tax return and can be subtracted from your W-2 income.
For example, if you earned $100,000 at your day job but your business had a $15,000 loss, you are essentially only taxed on $85,000. This can save you thousands in federal and state income taxes. It’s a great way to help subsidize the startup phase of your business, but you have to follow the rules to keep this benefit.
Don’t leave money on the table. Contact us so we can maximize your business deductions.
The Hobby Trap: Keeping the IRS Happy
The single biggest reason the IRS denies business losses is because they decide the business is actually a hobby. The IRS is fine with you losing money while you're trying to grow, but they aren't okay with you deducting expenses for something you just do for fun.
To distinguish a business from a hobby, the IRS looks for a profit motive. You don't necessarily have to make money every year, but you have to act like you want to. Here is how they judge you:
If the IRS reclassifies your business as a hobby, you can no longer deduct your losses against your W-2 income. Even worse, you may have to pay back the tax savings from previous years, plus interest and penalties.
The Material Participation Rule
Even if your business is legitimate, you can only use those losses to offset your paycheck if you materially participate in the business. This is a fancy way of saying you have to be the one doing the work.
If you just put money into a business but don't actually run it, which is called passive participation, your losses are considered passive losses. By law, passive losses can usually only be used to offset passive income, like rental income or profits from other businesses where you don't work. They cannot be used to offset your W-2 active income.
How do you prove you're active? The most common way is the 500-hour test. If you spend more than 500 hours a year working on your business, you're definitely a material participant. There are other tests too, such as being the only person doing the work or spending more than 100 hours and more than anyone else involved.
Understanding the At-Risk and Excess Loss Limits
There are two more gatekeepers that might limit how much you can deduct:
The IRS says you can only deduct a loss up to the amount you actually have at risk. This includes the cash you’ve put into the business and any loans you are personally responsible for paying back. If you have a loss that is greater than what you've put in, you might have to carry that loss forward to a future year instead of taking it all now.
For very high earners, there is a cap on how much business loss you can use in a single year. For 2024 and 2025, if your total business losses are more than $305,000, or $610,000 if you’re married filing jointly, the extra amount is disallowed for the current year and must be treated as a net operating loss in the following year.
Is your business audit-proof? Contact us for a comprehensive tax review.
Best Practices to Avoid Red Flags
If you want to use your business losses to lower your taxes without the IRS knocking on your door, you need to be organized. Here is our checklist for staying safe:
Common Questions
Is it okay if I lose money every year?
You can claim losses, but the IRS usually likes to see you make a profit in at least three out of every five years. If you lose money every single year for a long time, they might decide your business is just a hobby. If that happens, you lose the ability to use those losses to lower your other taxes.
What receipts should I be saving?
You should save everything. Keep your bank statements, receipts for every purchase, and even a log of the hours you spend working. Having a clear paper trail is your best defense if the IRS ever has questions for you.
Why do I need to worry about being a "hobby"?
If the IRS decides your business is a hobby, you can't deduct any losses. This means all the money you spent on equipment, marketing, or travel can't be used to lower your taxes. They look at things like whether you keep clean records and if you are actually trying to grow the business into a money-maker.
Do I really need a pro to help me?
While you can try to do it yourself, tax software often misses the small details about your active participation or complex equipment write-offs. When you contact us, we help you find the most savings while making sure you don't accidentally do something that triggers an audit.