A new business can collect thousands of dollars and still have very little taxable profit. It can also show a modest accounting profit while owing several different kinds of tax.
That is why “How much tax does a small business pay?” is usually the wrong first question.
The useful starting questions are: What is the business’s federal tax classification? How much profit did it earn? Does the owner owe self-employment tax? Are there employees? What state and local taxes apply? And has enough tax already been paid during the year?
Once those pieces are separated, small business taxes become much easier to manage.
Key Takeaways
- Taxes usually start with profit, not deposits: for a sole proprietor, Schedule C generally reports gross income and deductible business expenses to determine net profit or loss.
- An LLC is not one federal tax category: a one-owner LLC is generally disregarded by default, while a multi-member LLC is generally taxed as a partnership unless another election applies.
- Self-employment tax is separate from income tax: self-employed individuals generally owe it when net earnings from self-employment are $400 or more.
- Federal tax is pay-as-you-go: many owners use estimated payments because no employer is withholding tax from business profit.
- Do not blindly save “30% of revenue”: estimated tax depends on expected income, deductions, credits, filing status, other household income, withholding, and applicable taxes.
- Business deductions need support: deductible operating expenses generally must be ordinary and necessary, and mixed personal/business expenses must be separated.
- Hiring creates another tax system: employers can have withholding, Social Security and Medicare, federal unemployment, wage reporting, deposit, and recordkeeping obligations.
- Information-reporting rules change: for many Form 1099-NEC payments made in 2026, the federal threshold increased from $600 to $2,000.
- State and local taxes are separate: sales tax, income tax, franchise or gross-receipts taxes, unemployment tax, and local taxes depend on jurisdiction and activity.
Start With Your Business’s Federal Tax Classification
The IRS says the form of business you operate determines which income-tax return you file and which taxes may apply.
This is where many new owners confuse legal structure with federal tax treatment.
An LLC is created under state law, but the IRS can treat it as a disregarded entity, partnership, C corporation, or S corporation depending on the number of owners and elections made.
| Common structure / tax treatment | Typical federal income-tax filing | Where the income is generally taxed |
|---|---|---|
| Sole proprietor | Form 1040 + Schedule C | Owner’s individual return |
| Single-member LLC, default treatment | Generally Form 1040 + Schedule C for an individual owner | Owner’s individual return |
| Partnership / default multi-member LLC | Form 1065 + Schedules K-1 | Generally passes through to partners |
| S corporation | Form 1120-S + Schedules K-1 | Generally passes through to shareholders, with payroll rules for shareholder-employees |
| C corporation | Form 1120 | Corporation is a separate federal income-taxpayer |
The table is a starting point, not a complete filing analysis. Special elections, foreign owners, spouses in business together, trusts, estates, professional entities, state law, and other circumstances can change the result.
Our sole proprietor vs. LLC guide explains why forming an LLC does not automatically change the federal income-tax treatment of a one-owner business.
A Single-Member LLC Can Still Use Schedule C
The IRS generally treats a domestic LLC with one owner as disregarded for federal income-tax purposes unless the LLC elects corporate treatment.
When the owner is an individual and the business activity belongs on Schedule C, the owner generally reports the business there much like a sole proprietor.
Jordan then forms a single-member LLC but makes no corporate tax election.
The LLC changes the state-law entity structure, but the business can generally remain on Jordan’s individual federal income-tax return under the default disregarded-entity rules.
Do not assume that “LLC taxes” are automatically lower. The tax result depends on the classification and the owner’s broader tax facts.
S Corporations Add Payroll to the Picture
An eligible business can elect S-corporation status. The S corporation generally files Form 1120-S, and items pass through to shareholders on Schedule K-1.
But an owner who performs services for the S corporation is not free to label all business cash as distributions.
The IRS requires reasonable compensation to a shareholder-employee for services before non-wage distributions are used to avoid employment taxes. That means payroll administration becomes part of the tax system.
An S-corp election can be useful in the right circumstances, but the comparison should include payroll costs, tax preparation, state taxes, reasonable compensation, retirement and benefit effects, and the owner’s full tax return rather than a social-media “profit threshold.”
Understand the Taxes a Small Business Can Encounter
The IRS groups federal business taxes into broad categories including income tax, self-employment tax, employment taxes, and excise taxes.
A particular small business may encounter only some of them.
| Tax | Who may encounter it | What it relates to |
|---|---|---|
| Federal income tax | Owners, pass-through business owners, C corporations | Taxable income under the rules applying to the taxpayer and entity |
| Self-employment tax | Many sole proprietors, independent contractors, and partners | Social Security and Medicare tax on qualifying net earnings from self-employment |
| Employment taxes | Businesses with employees | Withholding, Social Security and Medicare, federal unemployment, reporting and deposits |
| Federal excise tax | Specified products, services, equipment, or business activities | Special federal taxes outside ordinary income tax |
| State and local taxes | Depends on jurisdiction and activity | Income, sales/use, franchise, gross receipts, payroll, unemployment, property, and other taxes |
Do not assume that paying one tax satisfies the others.
A sole proprietor can owe federal income tax and self-employment tax on the same business profit because the taxes serve different functions.
How Schedule C Profit Works
For a typical sole proprietorship or default-taxed single-member LLC owned by an individual, Schedule C is where the business generally reports its income and deductible expenses.
The central concept is:
This is simplified. Inventory, cost of goods sold, depreciation, special limitations, business-use percentages, and other tax rules can affect the calculation.
Revenue Is Not the Same as Profit
Customer revenue: $90,000
Deductible operating expenses: $38,000
Simplified Schedule C net profit: $52,000
The owner’s federal income and self-employment tax analysis generally starts much closer to the $52,000 profit than to the $90,000 of gross receipts.
This is one reason a percentage of gross revenue is a poor substitute for a tax calculation.
Two businesses can each receive $100,000 from customers while producing very different profits because one has $20,000 of deductible costs and the other has $75,000.
Report Income Even When a Form Does Not Arrive
Taxable business income does not become optional merely because the customer, platform, or processor did not issue an information return.
Your books should record income from all sources and reconcile it with Forms 1099 and payment-processor reports when those forms arrive.
A Form 1099 is an information document. It is not the business’s complete income ledger and its reporting threshold is not a tax-free threshold.
Self-Employment Tax Is Separate From Federal Income Tax
Self-employment tax funds Social Security and Medicare for people who work for themselves.
The IRS says you generally must pay self-employment tax when your net earnings from self-employment are $400 or more.
For the ordinary calculation, generally 92.35% of net earnings from self-employment is subject to the self-employment-tax calculation.
The self-employment tax rate consists of:
- 12.4% for Social Security; and
- 2.9% for Medicare.
The Social Security portion is subject to an annual maximum amount of earnings, while Medicare tax generally applies without that same cap. Additional Medicare Tax can apply above specified income thresholds.
For 2026, IRS Publication 505 lists the maximum income subject to the Social Security portion at $184,500.
The ordinary self-employment-tax worksheet first applies the 92.35% factor:
$50,000 × 92.35% = $46,175 of net earnings for this step.
The actual return then applies the Social Security and Medicare rules and any relevant limitations.
The owner can generally deduct one-half of the self-employment tax when figuring adjusted gross income. That deduction does not reduce the self-employment tax itself.
Do not simply multiply every dollar of revenue by 15.3%. The calculation begins with qualifying net earnings, not gross customer receipts.
Estimated Taxes: Pay During the Year, Not Only at Filing Time
Federal income tax is pay-as-you-go.
Employees usually satisfy much of that system through payroll withholding. A self-employed person may have little or no withholding on business income, so estimated payments can take its place.
IRS guidance says individuals, including sole proprietors, partners, and S-corporation shareholders, generally use Form 1040-ES to calculate estimated tax.
Who Generally Needs Estimated Payments?
For 2026, an individual generally needs estimated tax payments when both of these tests apply:
- You expect to owe at least $1,000 in tax after subtracting withholding and refundable credits.
- You expect withholding and refundable credits to be less than the smaller of:
- 90% of the tax shown on the current-year return; or
- 100% of the tax shown on the prior-year return, subject to the applicable higher-income and other special rules.
For higher-income taxpayers, the prior-year percentage can increase to 110% under the IRS rules. Farmers, fishers, nonresident aliens, and some other taxpayers can have special rules.
Do not turn those percentages into a homemade estimate without using the current Form 1040-ES or Publication 505 worksheets when the amount matters.
Quarterly Does Not Mean “Every Three Months”
Estimated tax uses four payment periods with specific IRS due dates. The periods are not four identical three-month quarters.
Use the current Form 1040-ES or IRS estimated-tax page for the actual dates rather than setting a recurring reminder for every 90 days.
You can also make payments more frequently—such as monthly—if that improves cash management, as long as enough tax is paid by the applicable payment-period deadline.
If You Also Have a W-2 Job
Business income does not exist in a separate tax universe.
If you or a spouse also earns wages, payroll withholding affects the household’s total estimated-tax requirement. Increasing withholding can sometimes be an alternative to making separate estimated payments.
That is another reason a flat “save 30%” rule can be wrong in either direction.
Business Deductions Reduce Taxable Business Income—When They Qualify
The IRS states that a deductible business expense generally must be both ordinary and necessary.
An ordinary expense is common and accepted in the trade or business. A necessary expense is helpful and appropriate; it does not have to be indispensable.
Depending on the business and specific rules, deductible operating costs can include items such as:
- advertising;
- business insurance;
- software;
- supplies;
- professional fees;
- business rent;
- employee wages;
- qualified travel;
- business use of a vehicle;
- business phone or internet use;
- payment-processing charges;
- bank fees;
- certain education or training; and
- other ordinary and necessary operating expenses.
Each category has its own rules. The fact that something was paid from a business bank account does not automatically make it deductible.
Separate Personal and Business Use
IRS guidance says that when an expense is partly business and partly personal, the personal portion generally is not deductible.
Paying the full bill from the business account does not automatically make 100% of the cost deductible. The business-use rules and substantiation still control the tax treatment.
The same principle matters for vehicles, home-office costs, travel, mixed purchases, and other expenses where personal use exists.
Some Costs Are Capitalized Instead of Deducted Immediately
Not every business purchase is an ordinary current-year deduction.
Equipment, certain improvements, inventory, startup expenditures, and other capital costs can be depreciated, amortized, included in cost of goods sold, or treated under another tax provision.
Our guide to business startup costs explains why the everyday category “what I spent to launch” is not identical to the federal tax category of Section 195 startup expenditures.
Keep Records That Can Reconstruct the Return
The IRS does not generally require one specific bookkeeping software package.
It says you may choose a recordkeeping system that suits the business as long as it clearly shows income and expenses.
Good records should let you:
- identify income sources;
- track deductible expenses;
- prepare financial statements;
- track basis in business property;
- prepare tax returns; and
- support amounts reported if they are questioned.
Supporting documents can include:
- invoices;
- receipts;
- bank statements;
- credit-card statements;
- proof of electronic payments;
- cash-register records;
- contracts;
- payroll records;
- asset purchase documents;
- mileage and travel substantiation where required; and
- Forms 1099, W-2, K-1, and other tax documents.
Separate Banking Helps, but It Is Not the Books
A dedicated business bank account makes recordkeeping much easier and helps keep company transactions separate.
But a bank statement does not tell you automatically whether a deposit is sales revenue, owner capital, loan proceeds, a refund, or a transfer between your own accounts.
Nor does a withdrawal tell you whether it is a deductible expense, inventory, equipment, loan principal, an owner draw, or personal spending.
Reconcile the bank to the accounting records rather than treating the statement itself as the accounting system.
How Long Should You Keep Records?
There is no single retention period for every business document.
The IRS says records should generally be kept as long as needed to prove income or deductions on a return, with the required period depending on the event and tax issue.
Employment-tax records have a clearer federal baseline: the IRS says to keep them for at least four years.
Asset records may need to be retained through the ownership period and beyond because they can support depreciation, basis, and gain or loss when the asset is sold.
Employees and Contractors Create Additional Filing Duties
Paying someone to help the business does not automatically make that person an independent contractor.
The IRS says the business must correctly determine whether the worker is an employee or an independent contractor.
If You Hire Employees
Federal responsibilities can include:
- obtaining an EIN;
- collecting employee withholding forms;
- withholding federal income tax;
- withholding the employee portion of Social Security and Medicare taxes;
- paying the employer portion of Social Security and Medicare taxes;
- federal unemployment tax where applicable;
- making tax deposits;
- filing Forms 941 or another applicable employment-tax return;
- filing Form 940 where required;
- issuing Forms W-2; and
- meeting state and local payroll and unemployment requirements.
Payroll deposits and payroll returns are separate compliance tasks. Paying employees correctly does not eliminate the need to deposit and report the taxes on schedule.
If You Pay Independent Contractors
Information-return rules can apply to business payments to nonemployees.
A significant 2026 change is worth noting: for many payments reportable as nonemployee compensation on Form 1099-NEC, the federal reporting threshold for payments made in 2026 is $2,000, up from $600 for payments made before 2026. The threshold is scheduled to be inflation-adjusted after 2026.
Exceptions and special reporting rules exist, so do not treat $2,000 as a universal threshold for every Form 1099 or every type of payment.
Collect a properly completed Form W-9 from applicable vendors before you need the information to prepare a year-end return.
State and Local Taxes Need Their Own Checklist
Federal tax compliance does not resolve state and local tax obligations.
Depending on where and how you operate, a business may need to investigate:
- state individual or corporate income tax;
- sales and use tax;
- state payroll withholding;
- state unemployment tax;
- franchise tax;
- gross-receipts tax;
- business personal-property tax;
- local income or occupational taxes;
- special industry taxes; and
- tax registrations in additional states.
A state can impose a tax even when another state uses a completely different name or does not impose the same tax.
Sales Tax Is Not the Same as Revenue
If the business is required to collect sales tax from customers, that tax generally should not be treated as though it were ordinary sales revenue available to spend.
Set up the accounting and bank workflow so collected tax can be identified and remitted according to the applicable state and local rules.
Online sellers also need to evaluate where physical or economic activity creates sales-tax obligations. Thresholds, taxable products and services, filing frequencies, and marketplace rules vary by state.
Do not use a single national “sales tax percentage” in the business plan.
Licenses and Tax Registrations Can Overlap Operationally
A state revenue department may require a tax registration before sales begin, while a city may require a local operating license and another agency may regulate the actual profession.
Our business licenses and permits guide provides a separate federal/state/local requirements map so tax registration is not confused with permission to perform regulated work.
Build a Tax Routine Instead of a Tax-Season Emergency
The easiest tax system is one that runs during the year.
A basic routine can include:
- Record sales continuously. Reconcile processors, invoices, cash receipts, and bank deposits.
- Categorize expenses. Attach or retain supporting documents.
- Reconcile bank and card accounts. Investigate missing, duplicate, or personal transactions.
- Review profit monthly. Do not estimate taxes from revenue alone.
- Update the tax projection. Recalculate when profit, wages, filing status, or other income changes materially.
- Move tax cash to a reserve. Keep it separate from ordinary operating cash.
- Make estimated payments when required. Use the current IRS schedule and state requirements.
- Complete payroll deposits and returns. Do not wait for the annual income-tax filing.
- Collect vendor tax forms early. Avoid chasing W-9 information after year-end.
- Review state and local filing calendars. Sales tax and payroll deadlines may be monthly or quarterly even when income-tax returns are annual.
How Much Should You Put Aside for Taxes?
Use an estimate, not a universal percentage.
A tax projection can incorporate:
- expected business profit;
- self-employment tax;
- other household income;
- W-2 withholding;
- filing status;
- deductions;
- credits;
- other taxes;
- state and local taxes; and
- the prior-year safe-harbor rules where relevant.
One has a spouse with substantial W-2 withholding and significant household credits. The other has no withholding, additional investment income, and lives in a state with income tax.
Their sensible tax-reserve percentages do not have to be the same even though Schedule C profit is identical.
If the projected tax is material or the return includes multiple businesses, S-corporation payroll, multi-state activity, large asset purchases, inventory, retirement plans, or significant credits, professional tax planning can be cheaper than fixing errors after filing.
Summary
Small business taxes become manageable when you separate the systems.
First identify the federal tax classification. Then calculate business profit from complete income records and qualifying expenses. Determine whether self-employment tax applies, whether estimated payments are needed, and whether employees or contractor payments create separate filing duties.
After that, add the state and local layer. Sales tax, payroll tax, unemployment tax, franchise or gross-receipts taxes, and local requirements vary by jurisdiction and cannot be solved with one national checklist.
Keep clean records throughout the year and update the tax estimate as the business changes. The goal is not to predict the final return perfectly on January 1. It is to avoid discovering in April that money you treated as available business cash had already become a tax obligation months earlier.
Frequently Asked Questions (FAQs)
What taxes does a small business have to pay?
It depends on the structure and activity. Federal taxes can include income tax, self-employment tax, employment taxes, and excise taxes. State and local income, sales, franchise, gross-receipts, payroll, unemployment, property, or other taxes may also apply.
Does an LLC pay different taxes than a sole proprietor?
Not automatically. A one-owner domestic LLC is generally disregarded for federal income-tax purposes unless it elects corporate treatment, so an individual owner commonly reports the business on Schedule C much like a sole proprietor. State taxes and fees can still differ.
What is self-employment tax?
It is Social Security and Medicare tax for people who work for themselves. The ordinary rate consists of 12.4% Social Security and 2.9% Medicare, with specific calculation rules and an annual cap on the Social Security portion. Self-employed individuals generally owe it when net earnings from self-employment are $400 or more.
Do I pay small business taxes on revenue or profit?
For a typical Schedule C business, federal income and self-employment tax calculations generally depend on net business earnings after qualifying expenses rather than gross customer receipts alone. Other taxes, such as sales or gross-receipts taxes, can use different bases.
Do self-employed people have to pay quarterly taxes?
Many do. For 2026, individuals generally need estimated payments when they expect to owe at least $1,000 after withholding and refundable credits and do not meet the applicable current-year or prior-year prepayment tests. Use the current Form 1040-ES or IRS guidance for your facts.
How much should I save for small business taxes?
There is no universal percentage. Estimate tax from expected profit, self-employment tax, other income, withholding, filing status, deductions, credits, state taxes, and other relevant items. A fixed percentage of gross revenue can materially overstate or understate the actual requirement.
What business expenses can I deduct?
Business operating expenses generally must be ordinary and necessary to be deductible, and specific categories have additional rules. Mixed personal and business costs must be allocated appropriately, while equipment, inventory, startup costs, and other capital expenditures can have different tax treatment.
What is the 1099-NEC threshold for 2026?
For many payments made in 2026 for services performed by a nonemployee in the course of a trade or business, the federal Form 1099-NEC reporting threshold is $2,000. It was $600 for payments made before 2026. Exceptions and different thresholds apply to some information returns and payment types.
How long should a small business keep tax records?
It depends on what the document supports. IRS guidance says records generally should be kept as long as needed to prove income or deductions. Employment-tax records should be kept for at least four years, while asset records may need to be retained for much longer.
Sources
- Internal Revenue Service — Business Structures
- Internal Revenue Service — Important Steps for Future Business Owners, June 2026
- Internal Revenue Service — Sole Proprietorships
- Internal Revenue Service — LLC Filing as a Corporation or Partnership
- Internal Revenue Service — S Corporations
- Internal Revenue Service — Forming a Corporation
- Internal Revenue Service — Filing and Paying Your Business Taxes
- Internal Revenue Service — Topic No. 554, Self-Employment Tax
- Internal Revenue Service — Publication 505, Tax Withholding and Estimated Tax, 2026
- Internal Revenue Service — Estimated Taxes
- Internal Revenue Service — Publication 334, Tax Guide for Small Business
- Internal Revenue Service — Recordkeeping
- Internal Revenue Service — Businesses With Employees
- Internal Revenue Service — Information Return Requirements
- Internal Revenue Service — Instructions for Forms 1099-MISC and 1099-NEC, 2026
