An S-Corp can legally report losses every year if the business is not profitable, allowing shareholders to deduct these losses on personal returns to offset other income. However, consistent, long-term losses often trigger IRS audits to determine if the business is actually a "hobby" (which limits deductions) or lacks a legitimate profit motive.
If your business claims a net loss for too many years, or fails to meet other requirements, the IRS may classify it as a hobby. If the IRS classifies your business as a hobby, it won't allow you to deduct any expenses or take any loss for it on your tax return.
S Corporation losses are limited to the taxpayer's stock basis and loans from the taxpayer to the S Corporation. Stock basis is generally increased by all income reported on Schedule K-1 (1120S) and decreased by property distributions.
Your S corporation can have a net loss for the year and do something that causes a salary. And if the IRS and/or the courts find that your S corporation did not pay you reasonable compensation, you can experience a new surprise salary, payroll taxes, and penalties. This will make your bad year worse.
The "2% rule" for S Corporations treats shareholders owning more than 2% of the company's stock (or voting power) differently for fringe benefits, classifying them like partners in a partnership, not regular employees; this means benefits like health insurance premiums paid by the S Corp must be included as taxable wages on their W-2, rather than being tax-free, though the shareholder can often deduct these premiums as an "above-the-line" deduction. This rule prevents them from participating in tax-advantaged Section 125 cafeteria plans, making benefits like Health FSAs unavailable on a pre-tax basis.
Note: The IRS won't object if your S Corp pays you nothing if your business is earning little to no income. However, when your S Corp starts making money, the first thing you need to do is pay yourself reasonable employee compensation. If there's money left over after that, you can pay yourself distributions.
S-Corp election lets you split your profits into “shareholder wages” (subject to 15.3% self-employment taxes) and “distributive share” (NOT subject to 15.3% self-employment taxes). Active owners in an S-Corp must pay themselves a reasonable salary, but realize a 15.3% savings on the rest of their retained profits.
An S corporation does have some potential disadvantages.
The S corporation allocates a loss and/or deduction item to the shareholder. In order for the shareholder to claim a loss, they need to demonstrate they have adequate stock and/or debt basis.
The $3,000 capital loss rule lets you deduct up to $3,000 (or $1,500 if married filing separately) of net capital losses against your ordinary income, like wages, after offsetting any capital gains. If your total loss exceeds this limit, you can carry the unused portion forward to future tax years indefinitely, reducing future gains or ordinary income, according to the IRS instructions for Schedule D (Form 1040) and IRS Topic No. 409.
Can I be personally liable if my S corp is sued? Generally, no. But if you co-signed a loan or failed to maintain separation between your personal and business finances, a court may hold you personally liable.
The biggest tax mistakes people make include filing late, math errors, incorrect personal info (like Social Security numbers), forgetting deductions/credits (like EITC), misreporting income, not signing forms, and making errors with bank details for direct deposit, all leading to delays, penalties, or missed savings, with using tax software or professionals helping avoid these common pitfalls.
The hobby loss rules apply to: S corporations; Partnerships; and. Trusts and estates.
The Complete List of S Corp Tax Deductions
S-Corp reasonable salary is the market-rate compensation you must pay yourself before taking distributions, typically ranging from $40,000-$150,000+, depending on your role, industry, and location. The IRS requires this to prevent payroll tax avoidance, with penalties reaching 20% plus interest for non-compliance.
Can I deduct 100% of my car expenses through my S Corp? You can only deduct the business-use percentage of your vehicle expenses. Personal use isn't deductible. If you use your car 80% for business, you can deduct 80% of actual expenses or claim 80% of your business miles at the standard rate.
S-Corps are pass-through entities, meaning the business doesn't pay federal income tax. Instead, the profits flow through to you and show up on your personal return, typically from Form 1120S. Whether you leave the money in the business or take it out, you're taxed on your share of the income either way.