Payroll
The process of calculating, distributing, and recording employee compensation, including wages, salaries, bonuses, tax withholdings, and benefit deductions, as well as the total sum a company pays its workforce during a given period.
What Is Payroll?
Key Takeaways
- ✓Payroll refers to both the process of paying employees and the total amount a company spends on employee compensation during a specific period.
- ✓It covers calculating gross pay, withholding federal and state taxes, applying benefit deductions, distributing net pay, filing tax deposits, and maintaining records.
- ✓In the US alone, employers collectively process over $2.2 trillion in payroll each quarter (Bureau of Economic Analysis, 2024).
- ✓Payroll errors affect roughly 1 in 3 employers annually, with tax-related mistakes being the most common violation (IRS).
- ✓Getting payroll wrong has cascading consequences: IRS penalties, employee trust erosion, potential lawsuits, and in extreme cases, criminal liability for willful failure to deposit taxes.
Payroll is how employees get paid. At its core, it's the process of calculating what each worker has earned, subtracting the right amount for taxes and benefits, and delivering the correct payment on time. But in practice, payroll is far more than cutting checks. It's a compliance function, a financial operation, and a critical piece of employee experience all rolled into one. Every pay period, the payroll team (or payroll software) must answer a series of interconnected questions. How many hours did each non-exempt employee work? Did anyone earn overtime, commissions, or bonuses this period? What's the correct federal, state, and local tax withholding for each employee based on their W-4? Are there new benefit elections, garnishments, or 401(k) changes to apply? Which employees are on leave and how does that affect their pay? The answers feed into a calculation that produces two outputs: net pay for the employee and tax liability for the employer. Most companies run payroll on a fixed schedule. Biweekly (every two weeks, 26 pay periods per year) is the most common cycle in the US, used by about 36.5% of employers. Semi-monthly (twice per month, 24 pay periods) is the next most common, followed by weekly and monthly. The cycle choice affects cash flow planning, overtime calculations, and benefit deduction timing.
Payroll as a process vs payroll as a number
The word "payroll" has two meanings, and context matters. When someone says "we need to run payroll," they mean the process: collecting time data, calculating pay, processing deductions, and distributing funds. When someone says "our payroll is $2 million per month," they mean the total cost of compensating the workforce. In financial reporting, "payroll expense" or "payroll costs" typically include gross wages plus the employer's share of payroll taxes (FICA, FUTA, SUTA), workers' compensation insurance, and sometimes employer-paid benefits. This broader figure is what shows up on income statements and what managers use when they talk about "headcount costs" or "labor burden."
Who handles payroll?
In small businesses (under 20 employees), payroll is often managed by the owner or a bookkeeper using software like QuickBooks, Gusto, or Square Payroll. Mid-size companies typically have a dedicated payroll administrator or a small payroll team within HR or finance. Large enterprises may have an entire payroll department or outsource to providers like ADP, Paychex, or Ceridian. The rise of cloud-based payroll platforms has blurred these lines. A single payroll admin with good software can now handle payroll for 500+ employees, a task that would have required a team of four or five people 15 years ago.
How Payroll Works: Step-by-Step
Every payroll run follows the same basic sequence, whether it's a 10-person startup or a 50,000-employee corporation. The complexity scales, but the steps don't change.
Step 1: Collect employee data and time records
Before the first payroll run, each employee completes Form W-4 (federal tax withholding elections), state withholding forms (where applicable), Form I-9 (employment eligibility), direct deposit authorization, and benefit enrollment forms. For each pay period, non-exempt employees submit time records (hours worked, overtime, breaks). Salaried exempt employees typically don't submit time records for pay purposes, but some companies track their hours for project billing or labor cost allocation.
Step 2: Calculate gross pay
For hourly employees: regular hours multiplied by the hourly rate, plus overtime hours at 1.5x (or applicable state rate), plus any additional pay components (shift differential, tips, bonuses). For salaried employees: annual salary divided by the number of pay periods, plus any bonuses or commissions earned in the period. This step must also account for retroactive pay adjustments, new hire prorations (partial period for mid-cycle start dates), and leave without pay deductions.
Step 3: Apply deductions and withholdings
Pre-tax deductions come out first: 401(k) or 403(b) contributions, health/dental/vision insurance premiums (under Section 125), HSA and FSA contributions, and commuter benefits. Then tax withholdings are calculated on the remaining taxable wages: federal income tax (based on W-4), Social Security (6.2% up to the wage base), Medicare (1.45% plus 0.9% additional on wages over $200,000), state income tax, and local taxes where applicable. Post-tax deductions come last: Roth 401(k) contributions, after-tax insurance premiums, wage garnishments, union dues, and charitable contributions.
Step 4: Process payments
Most US employers use direct deposit (ACH transfers), which accounts for about 93% of all payroll payments (Nacha, 2024). The employer initiates the ACH batch file 1-2 business days before payday to allow for bank processing. Some employees still receive paper checks, and a growing number use payroll debit cards (prepaid cards funded by the employer each pay period), particularly in industries with high numbers of unbanked workers. On payday, the employee receives their net pay plus a pay stub detailing gross pay, each deduction, and year-to-date totals.
Step 5: Deposit taxes and file reports
Employers must deposit withheld federal taxes (income tax, Social Security, Medicare) with the IRS on either a semi-weekly or monthly schedule, depending on their total tax liability. Most mid-to-large employers are semi-weekly depositors. Deposits are made electronically through EFTPS (Electronic Federal Tax Payment System). State tax deposits follow their own schedules. Quarterly, employers file Form 941 (federal) and corresponding state returns. Annually, employers file W-2s for each employee and W-3 (transmittal) with the SSA. They also file Form 940 (FUTA) and state unemployment returns.
Payroll Frequency Options
The payroll cycle determines how often employees are paid. Each frequency has trade-offs for cash flow, administrative workload, and employee satisfaction.
| Frequency | Pay Periods/Year | Common In | Pros | Cons |
|---|---|---|---|---|
| Weekly | 52 | Hourly, construction, retail, hospitality | Employees prefer frequent pay; easier overtime tracking for weekly cycles | Highest administrative cost; 52 payroll runs per year |
| Biweekly | 26 | Most US industries; largest share at 36.5% of employers | Good balance of frequency and admin burden; aligns well with two-week work cycles | Two months per year have three paydays, which complicates monthly budgeting for employees |
| Semi-monthly | 24 | Salaried workforces, professional services | Consistent two paychecks per month; easier to align with monthly benefit deductions | Doesn't align with workweek boundaries, making overtime calculations more complex for hourly staff |
| Monthly | 12 | Executive roles, many European and Asian countries | Lowest admin burden; simplest for monthly billing and reporting | Long gap between paychecks; can cause financial stress for lower-paid employees |
Payroll Taxes Explained
Payroll taxes are the government's primary revenue collection mechanism for Social Security, Medicare, and unemployment insurance. Both employees and employers share the responsibility, though the split isn't always equal.
Employee-side payroll taxes
Federal income tax is withheld from each paycheck based on the employee's W-4 elections. The amount depends on filing status, income level, and any additional withholding requested. Social Security tax is 6.2% of gross wages up to the annual wage base ($176,100 in 2025). Once an employee's year-to-date earnings exceed this cap, Social Security withholding stops for the rest of the year. Medicare tax is 1.45% of all gross wages with no cap, plus an additional 0.9% on wages exceeding $200,000 (for single filers). State and local income taxes vary widely: seven states have no income tax, while California's top rate is 13.3%. Some cities (New York City, Philadelphia, Detroit) impose their own payroll taxes on top of state taxes.
Employer-side payroll taxes
Employers match the employee's Social Security contribution (6.2%) and Medicare contribution (1.45%), bringing the combined FICA rate to 15.3% of wages. Employers don't match the additional 0.9% Medicare tax on high earners. Federal Unemployment Tax (FUTA) is 6.0% on the first $7,000 of each employee's wages, though the effective rate drops to 0.6% after the credit for state unemployment taxes. State Unemployment Tax (SUTA) rates vary by state and by the employer's experience rating (claims history), ranging from 0.5% to over 10% in some states. New employers typically receive a default rate until they build enough history for an individual rating.
Penalties for payroll tax errors
The IRS takes payroll taxes very seriously because they include trust fund taxes, money the employer withholds from employees' paychecks and holds "in trust" for the government. Failure-to-deposit penalties range from 2% (1-5 days late) to 15% (more than 10 days late after IRS notice). The Trust Fund Recovery Penalty (also called the 100% penalty) can be assessed against any "responsible person" who willfully fails to collect and pay over trust fund taxes. This means company officers, directors, and even payroll managers can be held personally liable. About 40% of small businesses incur payroll tax penalties each year (IRS data), with an average penalty of $845 per occurrence.
Payroll Compliance Requirements
Payroll sits at the intersection of multiple regulatory frameworks. Missing any one of them creates legal exposure.
Fair Labor Standards Act (FLSA)
The FLSA sets the federal minimum wage ($7.25/hour, unchanged since 2009), requires overtime pay at 1.5x the regular rate for non-exempt employees working over 40 hours per workweek, restricts child labor, and mandates recordkeeping for hours worked and wages paid. The exempt vs non-exempt classification determines whether overtime rules apply. Misclassification is one of the DOL's top enforcement targets. In 2024, the DOL updated the salary threshold for overtime exemption to $43,888/year (effective July 1, 2024), meaning more employees now qualify for overtime.
State and local wage laws
Many states have higher minimum wages than the federal floor ($16.50 in California, $16.00 in New York, $15.74 in Washington as of 2025). States also have varying rules for overtime (California requires daily overtime), meal and rest breaks (California, Oregon, Washington), final paycheck timing (California requires same-day payment upon termination), and pay stub disclosure requirements. Multi-state employers must track and apply the correct rules for each employee based on their work location, not the company's headquarters.
Recordkeeping requirements
The FLSA requires employers to keep payroll records for at least three years. These records must include employee name, address, birth date (for minors), sex, occupation, time and day the workweek begins, hours worked each day and each workweek, regular hourly rate, total overtime earnings, total wages paid each period, and deductions from wages. The IRS requires employers to keep employment tax records for at least four years after the date the tax becomes due or is paid, whichever is later. Many states have their own retention requirements that may be longer.
Payroll Software and Automation
Manual payroll (spreadsheets and hand calculations) is still used by about 15% of very small businesses, but it's error-prone and doesn't scale. Payroll software automates the calculation, tax filing, payment distribution, and recordkeeping tasks that would otherwise consume hours of manual work each pay period.
| Category | Examples | Best For | Typical Cost |
|---|---|---|---|
| Small business (1-50 employees) | Gusto, Square Payroll, OnPay, Patriot | Startups and small companies needing simple, affordable payroll with direct deposit and basic tax filing | $40-$100/month + $6-$12 per employee |
| Mid-market (50-1,000 employees) | Paychex Flex, Paylocity, Paycom, Rippling | Growing companies needing payroll bundled with HR, benefits, and time tracking | $150-$500/month + custom per-employee pricing |
| Enterprise (1,000+ employees) | ADP Workforce Now, Ceridian Dayforce, UKG, Workday | Large organizations with complex pay structures, multi-state or multi-country operations, and union workforces | Custom pricing, typically $15-$30+ per employee per month |
| Global payroll | Deel, Remote, Papaya Global, CloudPay | Companies paying employees and contractors in multiple countries with varying tax and compliance requirements | $29-$99 per employee per month for EOR; custom for direct payroll |
Payroll Statistics and Benchmarks [2026]
Key numbers that illustrate the scale, cost, and common pain points of payroll operations.
Payroll Best Practices
These practices apply to companies of any size. The goal is accuracy, compliance, and a payroll experience that employees never have to think about (because everything just works).
- Establish a payroll calendar at the start of each year that maps every pay period's cutoff dates, processing dates, deposit deadlines, and payday. Share it with managers and employees so everyone knows when time records are due.
- Automate tax calculations, filings, and deposits. Manual tax computation is the single largest source of payroll errors. Even a $10/month payroll tool eliminates most of this risk.
- Run a pre-processing audit each pay period. Before finalizing, review a variance report comparing current gross pay to the prior period. Flag any employee whose pay changed by more than 10% for manual review.
- Keep employee records current. Stale W-4s, outdated benefit elections, and wrong direct deposit information cause payroll problems that are always urgent on payday. Build a quarterly data hygiene check into your workflow.
- Separate payroll duties where possible. The person who enters hours shouldn't be the same person who approves the payroll run. This basic internal control reduces fraud risk and catches errors.
- File taxes early, not on the deadline. Payroll tax deposits have harsh penalties for late payment (up to 15%), and electronic banking glitches happen. Submitting deposits 1-2 days before the deadline gives you a buffer.
- Document your payroll process in writing. If your sole payroll person leaves, can someone else run payroll next week? A step-by-step process document with login credentials (stored securely) and vendor contact numbers prevents emergencies.
Frequently Asked Questions
What happens if I miss a payroll tax deposit deadline?
How long should I keep payroll records?
Can an employer change the payroll schedule?
What's the difference between payroll and HR?
Do independent contractors go through payroll?
Written by Adithyan RK