- The main pieces of payroll tax
- Deposits and filings (why payroll is “always on”)
payroll taxes are the taxes employers and employees pay on wages as part of the payroll process. If you have employees (not independent contractors), payroll tax compliance becomes a core operational duty: withholding, matching, reporting, and depositing on strict schedules.
Key Takeaways
- Employers must withhold federal income tax and FICA from employee paychecks, match the Social Security and Medicare portions, and deposit on strict schedules
- FUTA funds federal unemployment programs and is paid by the employer on the first $7,000 of each employee's wages
- Misclassifying employees as contractors to avoid payroll tax is a major IRS enforcement priority with steep penalties
This article explains the major components of U.S.
The main pieces of payroll tax
Federal income tax withholding
Based on the employee’s Form W-4 and IRS methods, employers withhold federal income tax from paychecks and remit it to the IRS. This is not an employer expense in the same way as wages—it is employee money you hold in trust.
FICA: Social Security and Medicare
FICA includes:
- Social Security (OASDI) on wages up to the annual wage base (adjusted yearly)
- Medicare on all covered wages, with additional Medicare tax for high earners
Employees pay a portion; employers match the standard Social Security and Medicare amounts. Self-employed individuals pay self-employment tax instead, which mirrors the combined employee+employer concept on net self-employment earnings.
FUTA: Federal unemployment tax
Employers generally pay FUTA (not withheld from employees) on the first $7,000 of each employee’s wages (subject to rules and credits for state unemployment paid on time). FUTA funds federal unemployment programs.
State and local payroll taxes
Depending on location, you may owe:
- State income tax withholding
- State unemployment insurance (SUI)
- Local taxes (city payroll taxes, transit taxes, etc.)
Multi-state employees add complexity—where they work vs live can matter.
Deposits and filings (why payroll is “always on”)
Employers must follow federal deposit schedules for withheld taxes and the employer share of FICA, often semi-weekly or monthly depending on lookback amounts. You also file:
- Form 941 quarterly (for most employers) summarizing withholdings and employer taxes
- Form 940 annually for FUTA
States have their own quarterly or monthly filings. Missing deposits triggers penalties that escalate quickly.
Contractors are not on payroll tax (usually)
Payments to true independent contractors generally do not trigger payroll withholding. Instead, you may issue 1099-NEC when thresholds and rules require.
Misclassification—treating employees as contractors to avoid payroll tax—is a major IRS and state enforcement area. Use the behavioral, financial, and type of relationship tests as guidance and get legal/tax counsel when uncertain.
Payroll tax vs self-employment tax
If you are solo and pay yourself from business profits without a formal salary, you may not be running payroll at all, you may owe estimated taxes and self-employment tax on profit instead.
If you elect S corporation status and pay yourself reasonable compensation, payroll tax applies to wages; distributions beyond salary are not subject to FICA, but the IRS scrutinizes unreasonably low salaries.
Operational best practices
- Separate payroll tax funds from operating cash mentally and in accounting
- Reconcile payroll reports to the general ledger monthly
- Use reputable payroll software or a PEO as you scale
- Keep time records for hourly workers (wage and hour law overlaps with tax record expectations)
Accurate time tracking also improves billing if you run a services business: timesheets and time tracking supports both payroll and client invoices when your team is billable.
How payroll connects to pricing
Employers often underestimate loaded cost of labor:
- Gross wages
- Employer payroll taxes
- Benefits
- Recruiting and training
If your revenue model depends on billable staff, your rates must cover those layers. Review pricing as you build a sustainable model, and keep client billing clean with invoice software.
Record-keeping
Payroll records typically include:
- W-4s and state equivalents
- Pay stubs and year-end W-2s
- Deposit confirmations
- 941/940 filings and state returns
Expense tracking still matters for the non-payroll side of the business, expenses and receipts tracking complements payroll systems.
Common pitfalls
- Using contractor labels to dodge payroll taxes when facts say “employee”
- Spending withheld taxes as working capital (treat them like a liability, not revenue)
- Ignoring local payroll taxes until a city auditor appears
- Failing to update payroll when employees move across state lines
Learn more
For broader tax context, visit our resource hub and use tools for planning templates. Payroll is specialized, when you hire your first employee, onboarding a payroll provider plus a CPA is a smart duo.
Summary
Payroll taxes include withholding, FICA, and unemployment obligations, plus state/local layers. Employers collect, match, report, and deposit on deadlines; errors are expensive. Contractors follow different rules. Do not confuse the two.
Educational overview, not payroll compliance advice for your jurisdiction or facts.
How Payroll Tax Affects Your Bottom Line
Payroll tax obligations are ongoing and unforgiving: missed or late deposits trigger penalties that escalate quickly and cannot be negotiated away easily. Treat withheld taxes as funds held in trust, not as working capital. When building your pricing model for billable staff, factor in the full loaded cost including employer FICA, FUTA, state unemployment, and benefits so your rates actually cover the real cost of having employees.
Payroll Tax Records You Must Keep
Store W-4 forms, state withholding elections, and I-9 forms for every employee in secure personnel files. Keep copies of all 941 quarterly filings, 940 annual filings, deposit confirmations, and state unemployment returns organized by quarter and year. Reconcile your payroll register to the general ledger monthly to ensure the wages, withholdings, and employer tax expenses recorded in your books match what your payroll provider reports. Maintain time records for hourly workers for at least three years per FLSA requirements, and longer if your state mandates it. When employees move across state lines, update your payroll system immediately and document the effective date of the work-state change.
Billed helps small businesses track income, manage expenses, and stay organized come tax season.
Frequently Asked Questions
What percentage of payroll taxes does the employer pay?
Employers pay 7.65% of each employee's wages for FICA taxes, which includes 6.2% for Social Security (up to the annual wage base) and 1.45% for Medicare. Employers also pay federal unemployment tax (FUTA) at 6% on the first $7,000 per employee, though credits for state unemployment taxes typically reduce the effective FUTA rate to 0.6%.
Are payroll taxes the same as income taxes?
No, payroll taxes and income taxes are separate obligations. Payroll taxes fund Social Security and Medicare and are split between employer and employee at fixed rates, while income taxes fund general government operations and are based on the employee's total taxable income and filing status. Employers withhold both from paychecks but remit them under different rules.
What happens if a small business is late on payroll tax deposits?
Late payroll tax deposits trigger penalties ranging from 2% to 15% of the unpaid amount depending on how late the deposit is, and interest accrues from the due date. The IRS treats payroll tax violations more seriously than most other tax issues because you are holding money withheld from employees, and the responsible person can be held personally liable even in a corporation or LLC.