Last updated: October 2026

Contractor Payroll: How to Pay 1099 vs W-2 Workers Correctly

Contractor payroll mistakes start with classification, not payment.

What Misclassification Costs in Back Taxes

Misclassify one worker and you are generally liable for the Social Security and Medicare taxes and the income tax you did not withhold. Section 3509 of the tax code can lower that bill.

With the required Forms 1099 filed, the rates are 7.44% of wages for Social Security, 1.74% for Medicare and 1.5% for income tax withholding (2026). Without those forms, they rise to 8.68%, 2.03% and 3.0%. On a worker paid $60,000 with the forms filed, that comes to $6,408, and you cannot recover the employee share from the worker. Section 3509 rates are not available if you intentionally disregarded the requirement to withhold.

Misclassification is a tax problem before it is a labor problem.

If you had a reasonable basis for not treating a worker as an employee, Section 530 relief may free you from paying employment taxes for that worker. To qualify, you must have filed all required federal returns, including Forms 1099, consistently with treating the worker as a nonemployee. You also must not have treated any worker in a substantially similar position as an employee.

What Makes Contractor Payroll Different from Standard Employee Payroll

W-2 employees require tax withholding on every paycheck. You withhold federal income tax, Social Security, and Medicare, then match the FICA (Federal Insurance Contributions Act) amount from your own funds. Most employers pay both federal unemployment tax (FUTA) and a state unemployment tax. You file Form 941 quarterly.

Independent contractor payroll involves none of that. You pay the agreed amount, and you generally withhold and pay over no federal taxes on it. Instead, you report payments of $600 or more made in 2025, or $2,000 or more made in 2026, on Form 1099-NEC by January 31. Backup withholding at 24% (2026) applies when a contractor fails to furnish a taxpayer identification number (TIN), or after an Internal Revenue Service (IRS) notice of an incorrect TIN. The contractor's own side of this sits in payroll for freelancers.

How the IRS Decides Who Qualifies as an Independent Contractor

The IRS uses a three-category analysis. Behavioral control asks whether you direct how the work gets done, not just what result you expect. Financial control looks at whether the worker has a genuine investment in their own business and can profit or lose money on the engagement. Relationship type examines written contracts, benefits, and permanency of the arrangement.

No single factor decides the outcome.

IRS Publication 15-A works through construction examples. In one, a tile setter uses personally owned tools and is still an employee. The company sets the order of work, supplies all materials, inspects often and carries workers compensation on the tile setter. In another, a licensed roofer paid a flat contract amount is an independent contractor. The roofer carries workers compensation and liability insurance and pays for any repairs.

California's ABC Test Changes the Rules for Paying Contractors

Under California's ABC test, every worker is presumed to be an employee unless you can satisfy all three prongs. The worker must be free from your control and direction, perform work outside your usual business operations, and be engaged in an independently established trade or occupation.

Prong B, the second condition, turns on your usual course of business. In Dynamex, the California Supreme Court explained that contracted workers who provide services in a role comparable to that of existing employees will likely be viewed as working in it. A retail store that hires an outside plumber to repair a leak satisfies Prong B. A bakery that hires cake decorators to work regularly on its custom cakes does not.

Assume every worker is an employee until you can prove otherwise.

Five 1099 vs W-2 Errors

Paying a contractor a guaranteed wage for an hourly, weekly or other period is the first. Publication 15-A says a regular wage usually indicates an employee, while a contractor is often paid a flat fee or on a time and materials basis. In one IRS example, an electrician paid $1,280 every two weeks on a $6,400 job is not considered paid by the hour.

Providing equipment and supplies to contractors signals control. An independent contractor often has a significant investment in the tools they use. Publication 15-A adds that the investment is not necessary for contractor status, and the tile setter above owned the tools and was still an employee.

Requiring specific work hours is an instruction about when to work. Publication 15-A says an employee is generally subject to the business's instructions about when, where and how to work. Set deliverables and deadlines instead, and let the contractor choose when and how to work.

Restricting contractors from working for competitors cuts against another factor. Publication 15-A says an independent contractor is generally free to seek out business opportunities.

Failing to file Form 1099-NEC by January 31 triggers its own penalty cascade. For returns due in 2026, late filing costs $60 per form up to 30 days late, $130 through August 1, and $340 after August 1 or if never filed. For a general contractor paying subcontractors across 40 projects, 25 forms filed after August 1 cost $8,500 before anyone looks at classification.

How Construction Companies Get 1099 Payroll Wrong

At a premium audit, the New York State Insurance Fund (NYSIF) asks you to produce every subcontractor's certificate of insurance. If you cannot show their workers comp coverage, NYSIF recalculates your premium to include them in your payroll. NYSIF's rates are usually per $100 of payroll, set by job classification.

Paying subcontractors correctly means verifying their insurance certificates before they start work, not after. Require certificates of insurance, verify them directly with the carrier, and confirm the policy covers the specific type of construction work being performed. A general liability certificate does not prove workers comp coverage exists.

Build Your Contractor Payment System This Week

Start with a W-9 collection process. No W-9, no first payment. Store completed forms digitally and set a calendar reminder for January to prepare 1099-NEC filings.

Create a classification checklist based on the IRS three-category test and apply it before engaging any new worker. Document your reasoning in writing. If the worker falls in a gray area, file Form SS-8 with the IRS to request a formal determination.

Review your current contractor relationships against the classification criteria. The Voluntary Classification Settlement Program (VCSP) lets you reclassify workers as employees for future tax periods, with partial relief from federal employment taxes. To qualify, you must have filed all required Forms 1099 for those workers for the previous three years.

Track payments to every 1099 worker in dedicated software. Gusto's Contractor Only plan, for businesses that have not hired W-2 employees, lists $35 per month plus $6 per contractor (September 2026). OnPay's Payroll Essentials plan, $49 per month plus $6 per worker (September 2026), pays W-2 and 1099 workers.

This is not legal or financial advice. Consult a qualified professional for your specific situation.