Payroll Taxes Explained: What Every Small Business Owner Needs to Know

The IRS assessed $6.8 billion in employment tax penalties in 2022. [IRS Data Book] The majority went to small businesses that either misunderstood payroll tax rules or didn't have systems to follow them consistently.

Payroll taxes aren't complicated once you understand the structure. This guide explains every payroll tax you'll encounter as a small business employer — in plain language, with real numbers.

The Three Types of Payroll Taxes

Every employer pays three categories of payroll taxes:

1. FICA taxes — funds Social Security and Medicare (federal, shared with employee)
2. FUTA — federal unemployment insurance (employer only)
3. SUTA — state unemployment insurance (mostly employer, varies by state)

Some states add disability insurance (SDI) or paid family leave (PFL) contributions on top. Use our Payroll Tax Calculator to see your exact obligations by state and income.

FICA: The Biggest Payroll Tax

FICA is the Federal Insurance Contributions Act, and it funds Social Security and Medicare. It's the largest payroll tax expense for most employers.

How FICA Works

FICA has two components, and both you and your employees split the cost:

Component Employee Rate Employer Rate Wage Base (2026) Social Security6.2%6.2%$184,500 [SSA] Medicare1.45%1.45%No limit Additional Medicare0.9%*$0$200k (single) Total FICA7.65%7.65%—

*The 0.9% Additional Medicare Tax applies to employee wages above $200,000. You withhold it from the employee's check but owe no employer match.

FICA Cost Examples

Employee Salary Employer FICA Cost Social Security Medicare $35,000$2,678$2,170$508 $50,000$3,825$3,100$725 $75,000$5,738$4,650$1,088 $100,000$7,650$6,200$1,450 $200,000$14,339$11,439*$2,900

*Social Security caps at the $184,500 wage base (2026). Source: SSA.

FUTA: Federal Unemployment Tax

The Federal Unemployment Tax Act funds the federal portion of unemployment insurance. Good news: it's a small cost.

• Rate: 6.0% on first $7,000 of wages — but the net rate is usually 0.6% [IRS: FUTA] because employers who pay SUTA timely receive a 5.4% credit
• Cost per employee: $42/year ($7,000 × 0.6%)
• Employer only: Employees don't contribute to FUTA
• Filing: Form 940, due January 31 each year

The one catch: if your state has an outstanding federal unemployment loan (a "credit reduction state"), your effective FUTA rate increases. Check the IRS website each November to see if your state is on the credit reduction list.

SUTA: State Unemployment Tax

State Unemployment Tax is where things get complex. Rates vary by state, experience, and industry — and they change your total employer cost significantly.

How SUTA Rates Work

When you first start employing, you pay a "new employer rate" — typically between 1% and 3.5% depending on your state. After a few years of employment history, your rate moves to an "experience-rated" rate based on how many of your former employees filed for unemployment.

A business with low turnover in a forgiving industry might see rates drop to 0.1-0.5%. A business with high turnover might see rates climb to 8-10%.

State New Employer Rate SUTA Wage Base Annual SUTA (new employer, $50k salary) California3.4%$7,000$238 New York4.025%$12,500$503 Texas2.7%$9,000$243 Florida2.7%$7,000$189 Illinois3.525%$13,590$479 Washington1.0%$72,800$728 Oregon2.6%$52,800$1,373

See all 51 state rates with our Employee Cost Calculator. Select your state to see SUTA, workers' comp estimates, and total employer cost in one calculation.

State Disability and Family Leave Contributions

Some states require additional payroll contributions beyond SUTA:

• California SDI: Employee-paid SDI (0.9% in 2026), plus optional Paid Family Leave
• New York: Paid Family Leave (employee-paid, ~0.37% up to $354/year) plus state disability insurance
• New Jersey: State Disability Insurance and Family Leave Insurance (employee-paid)
• Washington: Paid Family and Medical Leave (shared employer/employee contribution)
• Massachusetts: Paid Family and Medical Leave (shared employer/employee)
• Colorado, Oregon, Connecticut: Each has its own paid leave program

Payroll Tax Filing Requirements

Form 941: Quarterly Federal Tax Return

This is the most important ongoing payroll filing. Due four times per year:

• Q1 (Jan-Mar): Due April 30
• Q2 (Apr-Jun): Due July 31
• Q3 (Jul-Sep): Due October 31
• Q4 (Oct-Dec): Due January 31

Form 941 reports total wages paid, federal income tax withheld, and FICA taxes for both employee and employer.

Form 940: Annual FUTA Return

Filed once per year by January 31. Reports total wages and FUTA tax liability for the year.

W-2: Wage and Tax Statement

Must be distributed to employees and filed with the Social Security Administration by January 31. Late filing penalties start at $50/form and increase to $290/form for willful neglect. [IRS W-2 Instructions]

Payroll Tax Deposit Schedule

This is where most small employers get into trouble. You don't just pay payroll taxes on filing deadlines — you must deposit them according to a schedule:

Monthly Depositor (most new small businesses)

If your total payroll tax liability for the "lookback period" (12 months ending June 30) was $50,000 or less, you're a monthly depositor. Taxes withheld in any month must be deposited by the 15th of the following month.

Semi-weekly Depositor

If your lookback period liability exceeded $50,000, you deposit within 3 business days of your payroll date (Wednesday payrolls: deposit by Friday; Friday payrolls: deposit by Wednesday).

The $100,000 Next-Day Rule

Regardless of your regular schedule, if you accumulate $100,000+ in payroll tax liability in any deposit period, you must deposit by the next business day. This is the rule that catches growing businesses off guard.

Penalties for Late Payroll Tax Deposits

Days Late Penalty Rate 1-5 days2% 6-15 days5% 16+ days or failure to receive notice10% 10+ days after first IRS notice15%

On a $10,000 deposit that's 20 days late, you owe $1,000 in penalties plus interest. These add up fast across multiple payroll periods.

How to Stay Compliant Without Spending All Day on Taxes

The practical answer: use payroll software. Gusto, ADP, and Paychex all handle deposit scheduling, federal filings (941, 940), state filings, and W-2 distribution automatically. Their pricing ($40-$100/month for small teams) is far less than the penalties of one late deposit.

Before choosing software, use our Payroll Tax Calculator to estimate your total payroll tax burden by state and salary level. Then compare that to the cost of the software — you'll quickly see the math favors automation.