Running payroll in the U.S. is not just “sending paychecks.” Payroll is a compliance system: you must withhold the right taxes, deposit them on time, file the correct forms, and keep records that can support your numbers if the IRS asks.
In 2026, payroll mistakes can get expensive fast—especially late tax deposits, misclassified workers, and mismatched quarterly filings. The good news is that payroll becomes simple when you treat it as a repeatable process.
Here is what you need to know to run payroll correctly and stay audit-safe.
1. What Payroll Really Means (It’s Wages + Taxes + Reporting)
For the IRS, payroll is your responsibility to:
- Calculate wages correctly
- Withhold required employee taxes
- Pay the employer portion of certain taxes
- Deposit taxes electronically
- File quarterly and annual returns
This is why “we paid everyone” is not the same as “we did payroll right.”
2. The First Question the IRS Cares About: Employee or Contractor?
Before you even talk about tax forms, you need proper worker classification:
- Employees typically receive a W-2 and have taxes withheld.
- Independent contractors typically receive a 1099 (no withholding by default).
Misclassification is one of the most common reasons payroll gets messy—because it affects withholding, employer taxes, and reporting.
3. The Taxes Inside Payroll (What Gets Withheld vs What the Employer Pays)
Most payroll tax obligations include:
Federal income tax withholding:
- Withheld from the employee’s paycheck based on Form W-4.
Social Security + Medicare (FICA):
- Social Security is 6.2% employee + 6.2% employer
- Medicare is 1.45% employee + 1.45% employer
Additional Medicare Tax (employee-only withholding):
- May apply when an employee’s wages exceed $200,000 in a calendar year (withholding requirement for employers).
Federal unemployment tax (FUTA):
- FUTA is paid by the employer only (employees do not pay this via withholding).
4. Before You Run Your First Payroll: The Setup Checklist
If you’re hiring (or starting payroll for the first time), you typically need:
- EIN (Employer Identification Number)
- Employee Form W-4 for withholding setup
- Form I-9 verification (Section 2 must be completed within 3 business days of the employee’s first day)
- A payroll system that can produce pay stubs, calculate taxes, and store documents
- A clean bookkeeping structure (so payroll doesn’t “break” your books)
5. Depositing Payroll Taxes: Timing + Method (Where Penalties Happen)
Payroll tax deposits must be made electronically via EFT (for example, through EFTPS, business tax account, or other approved electronic methods).
Your deposit schedule is typically one of two:
- Monthly depositor (deposit by the 15th of the next month)
- Semiweekly depositor (deadlines depend on pay date)
This schedule is determined by your lookback period rules (not your preference).
6. The Key IRS Payroll Forms (Quarterly + Annual)
The IRS expects payroll reporting on a predictable calendar:
Form 941 (Quarterly): reports withheld federal income tax, Social Security, and Medicare taxes (including employer share).
Form 941 is generally due the last day of the month after the quarter ends (Apr 30, Jul 31, Oct 31, Jan 31).
Form 940 (Annual): FUTA reporting is handled separately (annual return).
W-2/W-3 (Annual wage reporting): W-2s must be furnished and filed by the deadline (generally January 31, or the next business day when it falls on a weekend/holiday—for example, February 2, 2026 for certain year-end deadlines).
7. Recordkeeping: What You Must Keep (and How Long)
The IRS expects employers to keep employment tax records for at least 4 years and have them available for review.
Records should include items like:
- Employee information and wages
- Tax deposit confirmations
- Filed returns (941, 940, W-2/W-3)
- Time and pay documentation (especially for hourly employees)
8. The Most Common Payroll Mistakes (and How to Avoid Them)
Here’s what creates the biggest payroll problems:
- Late or incorrect tax deposits (penalties add up quickly)
- Worker misclassification (W-2 vs 1099 confusion)
- Not reconciling payroll totals with your bookkeeping
- W-2 errors (names/SSNs/wage boxes) that trigger corrections and notices
- Not collecting updated W-4s when employees change situations
[Image suggestion: “Payroll Calendar for Employers” showing monthly/semiweekly deposits + quarterly 941 due dates + annual W-2 deadline]
Why Accounting Heart Keeps Payroll Simple (and IRS-Ready)
At Accounting Heart Business Solution (Accoheart), we help business owners:
- Set up payroll correctly from day one (W-4 + I-9 + payroll structure)
- Make sure deposits are scheduled correctly and paid electronically
- File quarterlies (941) and annuals (940, W-2/W-3) cleanly and consistently
- Reconcile payroll to bookkeeping so your tax return matches your real numbers
Payroll should feel like a system—not a monthly emergency.
👉 [Contact Accounting Heart today] and we’ll help you build payroll that’s compliant, organized, and scalable.