An S corp can deduct ordinary and necessary business expenses like salaries (W-2), employee benefits, rent, utilities, vehicle costs, marketing, insurance, and professional fees, with key deductions for owners including reasonable owner salary, health insurance premiums, and retirement contributions, often maximized through accountable plans for home office or car expenses, helping reduce overall taxable income passed to shareholders, plus potential QBI deduction.
Ordinary and necessary business expenses are deductible if they are directly related to operating your S corporation. Common examples include: Office supplies and software (e.g., Microsoft 365, Adobe Creative Cloud). Marketing expenses and advertising (website hosting, digital ads, business cards).
Many business expenses are 100% deductible, including advertising, employee wages, rent, supplies, and certain business meals like company parties or meals for the public, while personal deductions like student loan interest or charitable donations (depending on the type) can also be fully deductible for individuals. The key is that the expense must be "ordinary and necessary" for your trade or business or meet specific IRS criteria, often differentiating from the 50% rule for client meals.
S Corporations: The S Corp must either provide phones as a working condition fringe benefit or reimburse employees for business use under an accountable plan.
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.
For S Corp owners, the compensation structure involves a reasonable salary (subject to payroll taxes) plus shareholder distributions (generally not subject to payroll taxes). Generally, shareholder distributions are achieved by transferring funds from your business checking account to your personal bank account.
Yes. An S Corporation can reimburse you for using your personal car for business purposes. However, you must use what's called an Accountable Plan — a reimbursement arrangement that meets IRS requirements to avoid the payment being treated as taxable income.
What does the IRS allow you to deduct (or “write off”) without receipts?
The $20,000 limit under the measures applies on a per asset basis, so small businesses can instantly write off multiple assets. Assets valued at $20,000 or more can continue to be placed into the small business pool and depreciated at 15% in the first income year and 30% each income year after that.
Fines, penalties, and legal violations
The IRS does not allow deductions for expenses tied to breaking the law or failing to meet regulatory requirements. These payments are treated as penalties, not business costs. This includes government fines, parking tickets, late tax payment penalties, bribes, and kickbacks.
Here are some of the top S corp tax savings tactics to consider:
10 of the Largest Tax Breaks Explained
If a shareholder receives a non-dividend distribution from an S corporation, the distribution is tax-free to the extent it does not exceed the shareholder's stock basis. Debt basis is not considered when determining the taxability of a distribution.
You can transfer large amounts of money, but transactions over $10,000, especially in cash or structured deposits, trigger mandatory reporting (like IRS Form 8300 or Bank Secrecy Act (BSA) reports), not necessarily taxes, to fight money laundering. Banks file reports for cash over $10k (CTR) or suspicious activity (SAR) if they see patterns to avoid reporting (structuring), which can flag accounts even for smaller amounts like $200 if part of a pattern.
Yes, interest paid on business loans is generally 100% tax-deductible as a business expense. This includes interest on business credit cards, lines of credit, mortgages for business property, and equipment loans.
The IRS allows taxpayers to deduct up to $3,000 of realized investment losses ($1,500 if married filing separately) against ordinary income each year. This deduction applies only to losses in taxable investment accounts and must be realized by December 31st to count for that tax year.
Allowable expenses include your basic office costs such as stationery and the bills you pay on your business phone. Travel costs and staff salaries are also included, as is the cost of a uniform or other appropriate clothing (for example, if you work in a skilled or manual trade).
What are the most common tax deductions people claim?
If you don't have much in the way of deductible claims to make on your tax, you should not automatically claim an amount up to the $300 limit just because you can. The same applies for the $150 limit for laundry and the small expenses limit of $200.