- Payroll tax funds Social Security, Medicare, and unemployment; income tax funds general government operations. That single difference decides who pays and how you file.
- FICA is shared: 6.2% Social Security from each side (up to the $184,500 wage base in 2026) plus 1.45% Medicare each, with an extra 0.9% Medicare on employee wages over $200,000.
- Federal income tax is the employee's liability; you only withhold it using their W-4 and the 2026 brackets (10% to 37%). FUTA and SUTA, by contrast, are employer-only.
- You calculate, withhold, deposit through EFTPS, and file both taxes: Form 941 quarterly, Form 940 for FUTA, and W-2s at year end. Late deposits carry penalties of 2% to 15%.
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Two different taxes come out of every paycheck you run, so why do so many employers still treat them as one?
The short answer: payroll tax and income tax fund different things, follow different rules, and land the bill on different shoulders. Payroll tax is a shared contribution toward Social Security, Medicare, and unemployment.
Income tax is the employee's own liability on what they earn, and you simply withhold it. Confuse the two and you risk penalties, interest, and an audit, so it pays to get the distinction exactly right before your next pay run.
What is the difference between payroll tax and income tax?
Payroll tax funds specific social programs and is split between you and your employee; income tax funds general government operations and is paid entirely by the employee, with you acting only as the collector. That split drives who pays, how the tax is calculated, and which forms you file. The table below puts them side by side.
| Category | Payroll Tax | Income Tax |
|---|---|---|
| Who pays | Shared: employer and employee, plus some employer-only taxes | Employee only (you withhold on their behalf) |
| Purpose | Funds Social Security, Medicare, and unemployment | Funds federal, state, and local government operations |
| Based on | A fixed percentage of wages, with caps on some taxes | Income level, tax brackets, and W-4 elections |
| Your role | Withhold the employee share, pay the employer share, file payroll returns | Withhold the correct amount, remit it, report on the W-2 |
| Forms | Form 941 (quarterly), Form 940 (FUTA), state forms | Form W-2 (year end), state and local income tax forms |
| Rates | 15.3% combined FICA (7.65% each side), plus FUTA and SUTA | 10% to 37% federal, plus state and local |
With the high-level contrast clear, start with the tax you carry a direct share of: payroll tax.
What is payroll tax and who pays it?
Payroll taxes are employment-based taxes tied directly to wages, and you pay part of them yourself. In the US they fall into three buckets: FICA (Social Security and Medicare), federal unemployment (FUTA), and state unemployment (SUTA). Here is how each one works.
How do Social Security and Medicare (FICA) work?
FICA is the shared piece, split evenly between you and your employee. The specifics for 2026 break down as follows:
- Social Security: 6.2% from the employee and 6.2% from you, on wages up to the annual Social Security wage base, which is $184,500 in 2026. Earnings above that ceiling are not taxed for Social Security.
- Medicare: 1.45% from each side, with no wage cap.
- Additional Medicare: an extra 0.9% on employee wages over $200,000 in a year, withheld from the employee only with no employer match (IRS Topic 751).
Put together, standard FICA comes to 15.3% of covered wages, or 7.65% from each side. On the Additional Medicare piece, the IRS is explicit about where the duty sits:
Employers are responsible for withholding the 0.9% Additional Medicare Tax on an individual's wages paid in excess of $200,000 in a calendar year.
Internal Revenue Service, Topic No. 751. That shared FICA structure is what most people picture as payroll tax, but two employer-only taxes sit alongside it.
What is FUTA?
FUTA is a federal unemployment tax you pay alone. The headline rate is 6.0% on the first $7,000 of each employee's wages, but the credit for state unemployment taxes usually drops the effective rate to 0.6%, about $42 per employee per year. Employees never contribute to it, which brings up its state-level companion.
What is SUTA?
SUTA is the state unemployment tax, also employer-paid in most states. Each state sets its own rate and wage base, and your rate shifts with your industry and layoff history, so no two employers pay quite the same. A few states also collect a small employee share. On top of these, some places add local levies.
Are there local payroll taxes?
Yes. Some cities and states add their own payroll levies, such as transit or paid-leave taxes, and they vary widely by location. Once payroll tax is handled, the other half of the paycheck is income tax, which runs on entirely different logic.
What is income tax and who pays it?
Income tax is the tax on an employee's earnings, and it is entirely the employee's liability. Your only job is to withhold the right amount and remit it; you never pay it as a company expense the way you match FICA. It can apply at up to three levels.
How does federal income tax withholding work?
Federal withholding is driven by the employee's W-4 and the IRS methods in Publication 15-T. The 2026 federal brackets run from 10% to 37% and apply after the standard deduction, which is $16,100 for single filers and $32,200 for married couples filing jointly in 2026. You remit what you withhold on a set schedule and report it on each employee's W-2 form. State rules come next.
What about state income tax?
Most states require income tax withholding too, some at a flat rate and others on brackets. Nine states (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming) levy no tax on wage income, though local taxes can still apply. That local layer is the last piece.
What about local income tax?
Some jurisdictions, such as New York City and Philadelphia, add a local income tax on residents, commuters, or anyone working within city limits. With both taxes defined, the clearest way to see the difference is to run the numbers on a real paycheck.
How do you calculate payroll tax on a paycheck?
Payroll tax is a flat percentage of wages, so the math is predictable. Take an employee earning $5,000 in gross wages for a biweekly period, still under the Social Security wage base. The FICA portion looks like this.
| Component | Rate | Employee Pays | Employer Pays |
|---|---|---|---|
| Social Security | 6.2% | $310.00 | $310.00 |
| Medicare | 1.45% | $72.50 | $72.50 |
| Total FICA | n/a | $382.50 | $382.50 |
On top of FICA, you owe FUTA at 0.6% until the employee's year-to-date pay passes $7,000, roughly $42 for the year, plus SUTA at your state rate. Neither comes out of the employee's check. Income tax, by contrast, is not flat, so its math looks quite different.
How much income tax gets withheld?
Income tax depends on earnings, filing status, and the W-4, not a single flat rate. Consider a single filer earning $60,000 a year. After the 2026 standard deduction of $16,100, taxable income is $43,900, and the brackets apply in layers:
- 10% on the first $12,400 = $1,240
- 12% on the remaining $31,500 = $3,780
- Total federal income tax = $5,020, or about 8.4% of gross pay
Actual paycheck withholding uses the Publication 15-T tables and the employee's W-4 rather than this exact sum, but the bracket math is what those tables approximate across a year. Knowing both calculations only helps if you also meet the filing duties behind them.
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What are an employer's payroll and income tax responsibilities?
As the employer, you calculate, withhold, deposit, and report both taxes. In practice that breaks into four recurring jobs:
- Register and classify: Get an EIN and classify every worker correctly as an employee or a contractor; the right independent contractor tax form depends on that call, and misclassification is expensive.
- Withhold and deposit: Withhold the employee share of FICA and income tax, add your employer FICA plus FUTA and SUTA, and deposit through EFTPS on your assigned schedule.
- File and report: File Form 941 quarterly, Form 940 annually for FUTA, issue each employee a W-2, and file Form 1099-NEC for contractors, plus any state equivalents.
- Keep records: Hold W-4s, W-2s, I-9s, and deposit confirmations for at least four years in case of an audit.
If that feels like a lot to run by hand, our guides to payroll administration and automated payroll systems go deeper, and a Form 1099 explainer clears up the contractor paperwork. Doing these jobs on time is what keeps you clear of penalties.
What penalties apply if you get it wrong?
Most payroll penalties come from late or incorrect deposits, and the IRS failure-to-deposit penalty scales with how late the payment is:
| How late the deposit is | Penalty |
|---|---|
| 1 to 5 calendar days late | 2% of the unpaid deposit |
| 6 to 15 calendar days late | 5% of the unpaid deposit |
| More than 15 calendar days late | 10% of the unpaid deposit |
| More than 10 days after the first IRS notice | 15% of the unpaid deposit |
The percentages stack quickly, and interest runs on top, so the cheapest penalty is the one you never trigger. A few habits make that the norm.
How can employers stay compliant?
Staying compliant is mostly about building a reliable system rather than scrambling at filing time. These habits keep most employers penalty-free:
- Automate the busywork: Use payroll software that keeps tax tables and rates current; comparisons like Paylocity vs ADP and the best Paychex alternatives are a useful starting point.
- Audit yourself: Check worker classification, withholding accuracy, and deposit timing on a set schedule.
- Classify carefully: Re-check worker status whenever a role changes; our guide to hiring and paying contractors covers the gray areas.
- Never miss a date: Set reminders for Form 941 and 940 deadlines, deposits, and W-2 issuance.
- Keep figures current: Refresh W-4s and wage-base numbers each year, since the Social Security cap and brackets change annually.
For teams paying people in more than one place, our global payroll guide and the breakdown of EOR vs payroll explain how the model changes as you scale. If you would rather explore the surrounding topics first, the guides below go deeper.
How can Wisemonk help you run payroll and stay compliant?
Wisemonk is an India-native Employer of Record and payroll partner that takes payroll, tax withholding, and compliance off your plate entirely. We run pay cycles, deposits, and filings so that accuracy and deadlines stop being your problem, backed by a team that has onboarded 2,000+ employees for global companies and holds a 4.8/5 rating on G2.
That shows up in the results. When OneReach.ai needed a senior team built and paid fast, we filled eight senior roles in under six months, with payroll live within 48 hours of each start date:
The Wisemonk team played a key role in helping us hire for specialized B2B SaaS marketing skills. They are a great partner providing integrated services for EOR and recruitment, and I'd recommend them to any B2B SaaS vendor. -Saurabh Sharma, Chief Marketing Officer at OneReach.ai
That reliability is why global teams trust us with their people operations, from payroll to compliance to hiring. Our team sits in India and works with Indian labour law daily, which is where our depth comes from. We are planning to bring the same approach to future markets such as the US and the UK.
Ready to hand off payroll for good?
We are here. Let us run your payroll, tax withholding, and compliance end to end, accurately and on time, every pay period.
Frequently asked questions
How does payroll tax differ from income tax in terms of who pays it?
Payroll tax is shared: employers and employees each pay part of Social Security and Medicare, and employers alone pay federal and state unemployment taxes. Income tax is the employee's liability on their earnings; the employer only withholds it from each paycheck and remits it to the tax authorities.
What are the 2026 Social Security and Medicare tax rates?
For 2026, Social Security is 6.2% from the employee and 6.2% from the employer on wages up to $184,500. Medicare is 1.45% from each side with no wage cap, plus an extra 0.9% withheld from employees on wages above $200,000. Combined standard FICA is 15.3% of covered wages.
Are there states with no income tax?
Nine states levy no income tax on wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Payroll taxes like Social Security and Medicare are federal, so they still apply in every state, and some cities impose a local income tax regardless of the state rule.
What happens if I miss a payroll tax deposit deadline?
Missing a federal deposit deadline triggers an IRS failure-to-deposit penalty that ranges from 2% to 15% of the underpayment depending on how late it is, plus interest and possible audit exposure. Correcting the deposit quickly keeps the penalty at the low end of that range.
Can payroll tax and income tax come out of the same paycheck?
Yes. Social Security, Medicare, and income tax are usually withheld from the same paycheck, but they serve different purposes. Payroll taxes fund specific social programs, while income tax goes toward general government revenue, so they are reported and filed separately.
Do I need to withhold income tax for employees who earn very little?
In most cases yes, though the amount can be small or zero once the standard deduction and the employee's W-4 elections are applied. The Publication 15-T withholding tables account for low earnings automatically, so you follow the tables rather than skipping withholding.
Is payroll tax the same as self-employment tax?
No, but they cover the same programs. Self-employment tax is the Social Security and Medicare contribution for people who work for themselves, and because there is no employer to split it, they pay both halves, 15.3% up to the Social Security wage base. For employees, that 15.3% is divided evenly between worker and employer.
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