Payroll Processing: A Complete Guide
Use our free payroll processing guide to get pay periods, classification, and overtime right the first time. Payroll mistakes are rarely about math. They are about timing: a timecard approved late, a classification that was never double-checked, an overtime calculation that used the wrong week boundary. The math is simple once the inputs are right.
This page walks through payroll processing in the order it actually happens: setting up pay periods, classifying employees correctly, approving hours, calculating overtime, and generating the reports payroll depends on.
Quick Answer
Reliable payroll processing depends on a defined pay period structure, correct employee classification (exempt vs. non-exempt), a consistent timecard approval schedule before payroll runs, and accurate overtime calculation based on the applicable federal and state rules. Most payroll errors trace back to one of these four steps happening late or incorrectly, not to the payroll math itself.
Key Takeaways
- Pay period structure affects overtime calculation, so it needs to be set correctly from the start, not adjusted after the fact.
- Misclassifying an employee as exempt when they should be non-exempt is one of the most common and costly payroll mistakes.
- Timecards approved after payroll has already run are difficult to correct without creating discrepancies.
- Overtime rules vary by state, and some states calculate overtime daily, not just weekly.
- A payroll report generator only saves time if the underlying time and rate data feeding it is already accurate.
Table of Contents
Payroll Processing Steps
What each step in the payroll process is for. Click any step for the full guide.
| Step | What It Solves | Common Mistake |
|---|---|---|
| Pay Period Setup | Defining the recurring cycle payroll is calculated on | Changing pay period boundaries without adjusting overtime calculations |
| Employee Classification | Determining exempt vs. non-exempt status | Misclassifying employees, which creates legal and back-pay exposure |
| Timecard Approval | Confirming hours before payroll is run | Approving timecards after payroll has already processed |
| Overtime Calculation | Applying the correct federal or state overtime rules | Using weekly-only rules in states that also require daily overtime |
| Payroll Reporting | Generating records for accounting and compliance | Reports built from incomplete or unapproved time data |
Pay Periods and Classification
The pay period you choose (weekly, biweekly, semimonthly) affects how overtime is calculated, since overtime thresholds are usually based on the workweek, not the pay period. Getting classification right at hiring, rather than correcting it later, avoids the back-pay and penalty exposure that comes with misclassifying a non-exempt employee as exempt.
Why the workweek, not the pay period, drives overtime
Overtime is calculated against a fixed, recurring 7-day workweek defined by the employer, which does not have to align with the pay period at all. A biweekly pay period actually contains two separate workweeks for overtime purposes, so an employee working 45 hours in week one and 35 in week two owes 5 hours of overtime for week one, even though the two-week total of 80 hours looks unremarkable on its own.
Timecard Approval and Overtime
Timecards should be reviewed and approved on a set schedule before payroll runs, not scrambled through at the last minute. Overtime calculation gets more complicated than a flat 40-hour weekly threshold in states like California, Colorado, and Alaska, which apply daily overtime rules that a purely weekly calculation will get wrong.
How daily overtime rules change the math
In California, a non-exempt employee working 10 hours in a single day earns 2 hours of daily overtime at 1.5x pay for that day alone, regardless of whether their total weekly hours ever cross 40. A business applying only the federal weekly-40 rule to a California employee working four 10-hour days would incorrectly pay zero overtime, since 40 hours total looks compliant under federal rules while actually owing 8 hours of daily overtime under state law.
Compliance and Recordkeeping
Federal law requires payroll records to be kept for a minimum period, and many states require longer retention or additional records beyond the federal minimum. Recordkeeping requirements typically cover hours worked, wages paid, and any deductions, and gaps in these records become a real liability if a wage dispute or audit ever occurs.
Staffing agencies and businesses that operate across multiple states face an additional layer of complexity, since payroll compliance requirements, including minimum wage, overtime rules, and required pay stub information, can differ meaningfully by state even for an otherwise identical role.
Common Payroll Errors
The most frequent payroll error in small businesses is not a calculation mistake, it is a timing mistake: hours submitted or approved after payroll has already been processed, which forces a correction on the next cycle instead of the current one. The second most common error is applying a flat overtime rule in a state that actually requires daily overtime calculations.
Payroll Guides and Templates
Processing, classification, and reporting resources.
Payroll reports generated from approved time, automatically
Payroll reporting is only as reliable as the timecard data behind it. Updoot ties approvals, overtime multipliers, and pay rates directly to time tracking, so payroll reports reflect approved, accurate hours without a manual reconciliation step before every pay run.
Frequently Asked Questions
Non-exempt employees are entitled to overtime pay under the Fair Labor Standards Act when they work more than 40 hours in a workweek. Exempt employees, who typically meet specific salary and job duty requirements, are not entitled to overtime. Misclassifying a non-exempt employee as exempt is a common and costly payroll error.
Timecards should generally be reviewed and formally approved at least weekly, and always before payroll is processed for that period. Approving timecards after payroll has already run makes corrections more difficult and can create discrepancies in pay.
No. Most states use a weekly 40-hour threshold matching federal law, but some states, including California, Alaska, and Colorado, also apply daily overtime thresholds. Businesses operating in those states need to apply both rules, not just the weekly one.
A pay period is the recurring cycle payroll is calculated and paid on, such as weekly, biweekly, or semimonthly. The choice affects cash flow, administrative workload, and how overtime thresholds interact with the pay cycle, since overtime is usually calculated on the workweek regardless of pay period length.
A payroll report typically includes hours worked, regular and overtime pay, deductions, and net pay by employee for the period, along with any required tax withholding detail. Requirements can vary by state, so it is worth confirming your state's specific reporting requirements.