Common payroll tax mistakes in Tennessee (and how to avoid them)
Here are some common payroll tax mistakes Tennessee employers should watch out for.
Misclassifying workers (employee vs. contractor)
One frequent pitfall is misclassification, such as treating someone as an independent contractor when they legally should be an employee, or vice versa). Misclassification can lead to big payroll tax problems because employers don’t withhold taxes from contractors. Both the IRS and the state use specific criteria to distinguish employees from contractors, such as degree of control, financial arrangements, and relationship factors. If you misclassify and get it wrong, you could be liable for back payroll taxes, penalties, and interest.
Missing deadlines for deposits and filings
There are multiple deadlines; some deposits are due within days or weeks after each payroll, quarterly returns are due a month after quarter-end, and annual filings come up in January. Missing deadlines can trigger automatic penalties (e.g., federal deposit penalties start at 2% even if you're only a few days late, and Tennessee imposes a $10 per month UI filing penalty). Set up reminders or use payroll software that alerts you. Many businesses choose to remit taxes as soon as payroll is run to avoid falling behind. Keep quarter-end and year-end due dates clearly marked on a calendar and always file or pay as soon as possible if you fall behind.
Not registering or updating state accounts
Failing to register for tax accounts or update them when things change is a common mistake. For example, if you hire employees in Tennessee but don’t register with the Department of Labor & Workforce Development for unemployment insurance, you're non-compliant. Likewise, not updating your account when you move, close a location, or stop having employees can lead to penalties. Tennessee requires quarterly unemployment reports until your account is officially closed. Always keep your business details current, and make sure you're using an EIN for payroll, not your personal SSN.
Calculating taxes incorrectly
Using outdated rates or misapplying formulas can cause under- or overpayment. For instance, using last year's wage base for Social Security or misreading your Tennessee SUI rate could result in incorrect tax amounts when you’re trying to determine what the payroll tax rate is in Tennessee. Double-check figures for every payroll or use payroll software to automate calculations. If you find a mistake, correct it right away and let employees know if their pay is affected. A checklist can help keep each payroll run consistent and reduce the chance of errors.
Poor recordkeeping and documentation
Failing to maintain thorough payroll records can hurt your business during audits or tax inquiries. Keep copies of filed forms (941s, state wage reports), employee tax documents (W-4s, I-9s), and payroll run details (gross pay, withholdings, payment confirmations). Both Tennessee and federal law generally require you to keep records for at least three years, though six to seven years is recommended. Organize by year and document type, and reconcile payroll against your bank and tax filings.
Tip: QuickBooks Payroll can help you avoid these common mistakes by automating calculations, tracking deadlines, and keeping accurate records.