The moment a business pays anyone for work, it inherits a reporting duty — and the form it files turns on a classification it does not get to choose freely.
Employee or contractor: the classification is not an election. The line is the common-law degree of control — who directs how, when, and where the work is done — not what the parties call it or what the worker prefers ( IRS Pub. 15-A, “Employer’s Supplemental Tax Guide”). Direct the work, set the hours, and supply the tools, and the worker is an employee who gets a Form W-2, no matter how convenient a Form 1099 would be. Misclassifying an employee as a contractor to dodge the employer’s half of payroll tax is the single most common — and most aggressively pursued — small-business payroll error: it triggers back FICA and withholding, the IRC §3509 penalties, and state liability on top. A genuine contractor who runs their own business and serves multiple clients gets a 1099 and handles their own self-employment tax.
Paying employees. Collect a Form W-4 at hire, then withhold the employee’s income tax and 7.65% FICA share from each check and remit it with the employer’s matching 7.65%, on the deposit schedule the IRS assigns. File Form 941 each quarter (Form 944 annually for the smallest employers) and Form 940 annually for federal unemployment tax, and issue each employee a Form W-2 by January 31, transmitting the set to the Social Security Administration on Form W-3. State income-tax withholding and state unemployment (SUTA) run in parallel and must be registered separately.
Paying contractors and vendors: the 1099 web. Collect a Form W-9 before you pay a vendor, so you have a verified taxpayer ID in hand. File Form 1099-NEC for $600 or more paid in the year to a non-corporate contractor for services, and Form 1099-MISC for $600 or more of rents, prizes, or gross proceeds paid to an attorney. Most payments to corporations are exempt from 1099 reporting — but legal fees and medical payments are reportable even when the payee is incorporated. The 1099-NEC is due to both the recipient and the IRS by January 31. Payments you make by card or through a third-party platform are reported by the processor on Form 1099-K, so do not also issue a 1099-NEC for them — double-reporting the same income invites a matching notice.
Backup withholding: the price of sloppy paperwork. If a payee refuses a TIN or the IRS flags a name/TIN mismatch, you must withhold 24% of the payment under IRC §3406 and remit it — and if you fail to, the uncollected tax becomes your liability, not the payee’s. Getting the W-9 before the first check is the entire defense; chasing a missing TIN after year-end is how a business ends up paying a contractor’s tax out of its own pocket.
The penalties scale with delay. Late or incorrect information returns draw penalties under IRC §6721 and IRC §6722 — charged twice, once for the IRS copy and once for the payee copy, and rising the longer the form is overdue, with the cap removed entirely for intentional disregard. File on time even if a figure is imperfect, then correct it; a timely wrong form costs far less than a late right one.