Yes, you can get a tax refund when your business loses money, but the refund isn’t the loss itself. It’s the return of taxes you already paid on other income once the business loss reduces your total tax bill below what you’ve already handed over through withholding or estimated payments. Whether a tax refund from a business loss actually reaches your bank account depends on your business structure, whether the IRS considers the activity a real business, and how much of the loss survives a stack of federal limitation rules.
How the Refund Actually Happens
The mechanism only works because of pass-through taxation. Sole proprietorships, partnerships, and S-corporations don’t pay federal income tax at the entity level. Profits and losses flow onto the owner’s Form 1040 and mix with everything else on the return.
Sole proprietors report business results on Schedule C, and the profit or loss feeds directly into the 1040.1Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss from Business (Sole Proprietorship) Partnerships file an informational return and issue each partner a Schedule K-1 showing their share, which the partner reports on Schedule E.2Internal Revenue Service. About Form 1065, U.S. Return of Partnership Income S-corporations do the same through their own K-1.3Internal Revenue Service. S Corporations
Here’s the math. You earn $80,000 in W-2 wages and your employer withholds $12,000 in federal income tax. Your sole proprietorship loses $30,000. That loss drops your adjusted gross income to $50,000 and your final tax bill to roughly $4,000. Because you already paid $12,000, the IRS refunds $8,000. The loss unlocked taxes you had already paid on the wages.
One structure doesn’t work this way. A C-corporation is a separate taxable entity, and its losses stay trapped inside the corporation. They can offset the corporation’s future profits, but they never flow to the shareholders’ personal returns. If your business is a C-corp, a bad year doesn’t produce a personal refund.
Is It a Business or a Hobby?
Before any of the loss rules matter, the IRS asks whether the activity is actually a business. Under Section 183, deductions from an activity not carried on for profit are limited to the income that activity generates.4Office of the Law Revision Counsel. 26 U.S. Code 183 – Activities Not Engaged in for Profit A hobby cannot produce a net loss that offsets your wages. If a pottery side venture brings in $3,000 and costs $10,000, the $7,000 gap doesn’t come off your day-job salary as long as the IRS calls the pottery operation a hobby.
The safe harbor: the IRS presumes an activity is a business if it turns a profit in at least three of the last five years, or two of the last seven for horse-related activities.4Office of the Law Revision Counsel. 26 U.S. Code 183 – Activities Not Engaged in for Profit Fail that test and the burden shifts to you. The IRS weighs factors like whether you keep accurate books, whether you’ve changed methods to improve profitability, your expertise, the time and effort you invest, past success in similar activities, and how much recreational appeal the activity has.5Internal Revenue Service. Know the Difference Between a Hobby and a Business
No single factor decides it. An activity that loses money year after year while the owner clearly enjoys doing it is an easy target for reclassification. Serious financial records, a written business plan, and evidence that you’ve adjusted your approach when things weren’t working all strengthen your position. Without that foundation, the IRS can wipe out your refund by relabeling the losses as nondeductible.
What Limits How Much of the Loss You Can Use This Year
Assuming the activity is a real business, three sets of rules apply in a fixed order to decide how much of the loss actually reaches your 1040. IRS Publication 925 spells out the sequence: basis first, then at-risk, then passive activity.6Internal Revenue Service. Publication 925 (2025), Passive Activity and At-Risk Rules Each filter reduces what’s left for the next.
Basis
Partnership and S-corporation owners can only deduct losses up to their basis in the entity. Basis is your financial stake: cash and property you’ve contributed, plus income allocated to you over time, minus distributions and prior losses you’ve already claimed.
For S-corp shareholders, losses and deductions in any year cannot exceed the adjusted basis of your stock plus the basis of any loans you personally made to the corporation.7Office of the Law Revision Counsel. 26 USC 1366 – Pass-Thru of Items to Shareholders Excess losses are suspended and carry forward. If you dispose of all your stock without restoring basis, any suspended losses disappear permanently.8Internal Revenue Service. S Corporation Stock and Debt Basis Partners face the same structure: your share of partnership losses is deductible only up to the adjusted basis of your partnership interest at year-end, and any excess carries forward.9Office of the Law Revision Counsel. 26 U.S. Code 704 – Partners Distributive Share
Sole proprietors generally don’t hit this wall. There’s no separate entity to hold basis in, which is part of why sole proprietorships are the most direct path from business loss to personal refund.
At-Risk
Losses that clear basis must then survive Section 465. You can only deduct losses up to the amount you actually stand to lose financially. You’re at risk for cash and property you contributed, plus amounts you borrowed where you’re personally on the hook for repayment.10Office of the Law Revision Counsel. 26 U.S. Code 465 – Deductions Limited to Amount at Risk
Debt is where this rule bites. Recourse loans, where the lender can pursue your personal assets, add to your at-risk amount. Nonrecourse loans, where the lender’s only remedy is seizing the collateral, generally don’t. The exception is qualified nonrecourse financing secured by real property from certain institutional lenders, which does count as at-risk. That carve-out mainly helps real estate investors using conventional mortgages. Losses above your at-risk amount are suspended until your at-risk amount goes up.
Passive Activity
Losses that survive both prior filters face Section 469. A passive activity is any business in which you don’t materially participate.11Office of the Law Revision Counsel. 26 U.S. Code 469 – Passive Activity Losses and Credits Limited Passive losses can only offset passive income. They can’t touch your salary or your investment dividends. Without passive income to absorb them, they suspend and carry forward indefinitely until you generate passive income or dispose of the entire activity.
Material participation is the escape. The IRS offers seven tests and you only need to meet one. The most common is the 500-hour test: more than 500 hours in the activity during the year and you qualify automatically. Alternatives include being effectively the only participant, or logging more than 100 hours with no other individual doing more than you.6Internal Revenue Service. Publication 925 (2025), Passive Activity and At-Risk Rules A full-time sole proprietor almost always clears this. The rule hurts silent investors in partnerships and S-corps who put in capital but stay out of daily operations.
The Dollar Cap on Big Losses
Losses that make it through basis, at-risk, and passive activity face one more restriction if they’re large. The excess business loss (EBL) limitation under Section 461(l) caps how much net business loss a non-corporate taxpayer can deduct against non-business income in a single year. The One Big Beautiful Bill Act made this rule permanent.12Internal Revenue Service. Instructions for Form 461 – Limitation on Business Losses
The threshold adjusts for inflation. For 2026, it’s $256,000 for single filers and $512,000 for joint filers. The calculation totals your business deductions across all your trades and businesses, subtracts total business income, and compares the net loss to the threshold. Anything above the cap is disallowed for the current year.13Internal Revenue Service. Excess Business Losses
The disallowed portion doesn’t vanish. It converts automatically into a net operating loss carryforward.12Internal Revenue Service. Instructions for Form 461 – Limitation on Business Losses Most small business owners never touch this rule. It targets high-income taxpayers who might otherwise use enormous deductions to zero out tax on salaries and investments in a single year.
What Happens to the Loss You Couldn’t Use
When your business loss exceeds all your other income, or when the EBL cap converts part of it into a future deduction, the leftover becomes a net operating loss. An NOL doesn’t disappear; it carries forward to reduce taxable income in later years.
Under current law, NOLs arising after 2020 generally must be carried forward only. The old option to carry a loss back to prior years and claim an immediate refund is gone for most filers. The one notable exception is farming losses, which still qualify for a two-year carryback.14Internal Revenue Service. Instructions for Form 172 – Net Operating Losses for Individuals, Estates, and Trusts If you’re a farmer, that carryback can generate a refund from a prior year’s return. Everyone else is on a forward-only timeline.
The carryforward comes with a limit too. You can only apply an NOL to offset up to 80% of taxable income in the year you use it.14Internal Revenue Service. Instructions for Form 172 – Net Operating Losses for Individuals, Estates, and Trusts You’ll always owe tax on at least 20% of that future year’s income, even with a giant NOL sitting on your return. Unused amounts keep rolling forward with no expiration.
The refund from a carryforward works the same way as an immediate loss offset. Apply a $50,000 NOL against $100,000 of next year’s income, taxable income drops to $50,000, and if withholding was based on the full $100,000, you get a refund for the over-withholding. The benefit just arrives later. Tracking your carryforward balance is on you, so keep the documentation from the original loss year organized.
Self-Employment Tax in a Loss Year
One more consequence catches people off guard. Sole proprietors and partners owe self-employment tax on their net earnings from the business. Negative net earnings mean no self-employment tax for the year. That’s cash you keep, but you’re also not earning credits toward Social Security benefits for that year.
If you want to preserve credits, the IRS offers an optional method for calculating self-employment earnings. It lets you report a small amount of net earnings (up to $7,240 under the nonfarm method) even when the business actually lost money.15Internal Revenue Service. Instructions for Schedule SE (Form 1040) You’ll pay some self-employment tax on the reported amount, but you’ll earn Social Security coverage for the year and may also increase eligibility for the earned income credit and the child and dependent care credit.16Internal Revenue Service. Topic No. 554, Self-Employment Tax
This trade-off matters most for newer businesses where the owner isn’t building Social Security credits from any other source. A decades-long career with plenty of covered earnings won’t feel a missed year. A brand-new venture might.