W-2 vs 1099
Also known as: W-2 employee vs 1099 contractor, IRS Form W-2, IRS Form 1099-NEC, Employee vs contractor (US)
In US tax terminology, W-2 refers to employees (the employer withholds income tax, Social Security, and Medicare; the employer pays half of FICA payroll taxes) and 1099 refers to independent contractors (the worker is responsible for their own tax, including the full self-employment tax). The classification is determined by the working relationship — not by the contract label — and misclassification triggers IRS back-tax liability.
W-2 and 1099 are the two main US worker classifications, named after the IRS forms that report income for each. W-2 employees are subject to employer payroll-tax withholding and statutory benefits eligibility (FMLA, unemployment, workers' compensation). 1099 contractors invoice for services and handle their own tax obligations. Most US workforce classification disputes ultimately come down to whether someone receiving a 1099 is, by the actual facts of the working relationship, a W-2 employee.
Mechanics of each
- W-2: employer withholds federal/state income tax, Social Security (6.2% employee + 6.2% employer), and Medicare (1.45% each). Issues Form W-2 by January 31
- 1099: contractor receives gross payment (no withholding). Pays own income tax + 15.3% self-employment tax (covering both halves of FICA). Receives Form 1099-NEC if paid $600+ in a year
- W-2 receives statutory benefits (unemployment insurance, workers' comp, FMLA eligibility, ACA-relevant for employer mandate)
- 1099 receives none of those benefits — pays own health insurance, no unemployment, no workers' comp
IRS classification tests
The IRS applies a "common law" test focused on three categories: behavioral control (does the company control how the work is done?), financial control (does the worker have significant investment in tools, can they realize profit or loss?), and relationship type (written contract, benefits, permanency, integral to business). Failing one or more factors strongly suggests employee status regardless of contract label. Several US states apply stricter "ABC test" rules (notably California under AB-5).