What is Payroll?
Payroll is the end-to-end process of paying employees: calculating gross pay, withholding the right taxes and deductions, issuing payments (direct deposit or check), filing payroll-tax returns (federal 941, state equivalents), and recordkeeping. It's also the term for the actual list of paid workers and their compensation totals.
Full explanation
Payroll covers everything between "employee did the work" and "taxes are remitted correctly to the IRS and state." That means time tracking (hours worked or salary divided), gross-pay calculation (rate × hours + overtime + bonuses), withholding (federal income tax via W-4, FICA, state income tax, garnishments, benefit elections), payment issuance (direct deposit or check), and the back-end of remitting all withholdings to the appropriate agencies.
On the employer side, payroll involves filing periodic tax returns: Form 941 (quarterly federal payroll), Form 940 (annual federal unemployment), state withholding returns (usually monthly or quarterly), state unemployment returns, and year-end W-2s and 1099s. The deposit schedule for the withheld funds depends on the size of the payroll — small employers may deposit monthly, larger ones semi-weekly or even next-day.
Small businesses often use payroll software (Gusto, ADP Run, QuickBooks Payroll, etc.) to automate the tax math, generate paystubs, file the returns, and remit the deposits. Doing it manually is legal but error-prone — payroll tax penalties are among the most severe the IRS imposes, including personal liability for owners and officers under the Trust Fund Recovery Penalty.
For independent contractors (1099), there's no payroll in the traditional sense — no withholdings, no employer-side payroll tax filings. The business just pays the invoice and issues a 1099 at year end. That simplicity is why some businesses prefer contractors when the work relationship genuinely qualifies for that classification.
Frequently asked questions about Payroll
What is the difference between payroll and HR?
Payroll is the calculation, payment, and tax-remittance for compensation. HR is the broader function — hiring, benefits administration, employee relations, performance management. The two overlap (HR sets up the employee record; payroll uses it) but are distinct functions in most companies.
How often is payroll run?
Most common in the U.S.: bi-weekly (every two weeks, 26 pay periods/year) and semi-monthly (twice a month, 24 pay periods/year). Less common: weekly (52/year), monthly (12/year). The schedule is the employer's choice but must be consistent and comply with state pay-frequency laws.
Do I need a payroll service for one employee?
Not strictly — but the tax-filing requirements (Form 941, state withholding, W-2, deposit schedule) apply regardless of employee count. Most small-business owners find a payroll service worth the ~$40/month even for one employee, just to avoid the penalty exposure from a missed deposit.