Insights > Payroll > How to catch timesheet fraud before it hurts your payroll

Updated: May 7, 2026 • 9 min read

How to catch timesheet fraud before it hurts your payroll

Published By:

Jon Davis

The word “fraud” sometimes conjures up images of forged checks and shady wire transfers. But one of the most costly and hard-to-detect payroll issues shows up in everyday processes. A rounded-up shift here, an unrecorded break there, or a clock-in that doesn’t quite match reality. Over time, those small inaccuracies can add up, creating payroll losses and compliance risks that are easy to overlook until they’re expensive to fix. In 2025, nearly a quarter (24%) of employees admitted to inflating work hours, resulting in an average of 4.5 hours per week of stolen time.

Key takeaways

  • Time theft is a globally prevalent phenomenon that annually costs organizations over $700 billion
  • Fraud can take many forms, such as buddy punching or inflating work hours, with financial ripple effects beyond payroll costs
  • Given that compliance is based on accuracy, rather than intent, even a minor inaccuracy in your payroll or time reporting can trigger compliance issues

Left unchecked, time theft can drain profits and undermine trust across your workforce. What looks like a few extra minutes can turn into thousands of lost dollars and a workplace culture where cutting corners is the norm.

What is timesheet fraud and why it matters

In a nutshell, timesheet fraud is when employees intentionally manipulate time records to gain unearned wages. Common examples include:

  • Buddy punching: Coworkers clock in or out for their colleagues to cover tardiness or absence
  • Inflated hours: Workers round up or exaggerate the time they work
  • Unauthorized edits: Supervisors or employees manually change timesheets to add hours
  • Long breaks disguised as work: Employees take extended lunches or breaks but record the full shift as worked

 

Prevalence of timesheet fraud 

Unfortunately, timesheet fraud is more common than you might think. Since 2019, 30% of all investigations opened by the AmeriCorps Office of Inspector General (OIG) have related to false or problematic timekeeping.

 

Consequences of timesheet fraud 

That said, timesheet fraud is a crime. The act of falsifying records to be paid for hours not worked can be prosecuted under state statutes for theft and fraud. While minor, one-off issues usually result in internal discipline or termination, more serious cases carry heavy consequences:

  • Criminal charges: Significant or long-term fraud can lead to felony or misdemeanor charges
  • Legal fines: Courts may mandate restitution and additional financial penalties.
  • Compliance risk: For the business, inaccurate records can lead to costly Department of Labor audits

 

Now that we better understand some of the more obvious issues that can stem from fraudulent timecards, let’s take a look at some of the problems that can fly under the radar.

The hidden costs of timesheet fraud for SMBs

According to the Association of Certified Fraud Examiners (ACFE), a typical payroll fraud scheme lasts 18 months and results in a median loss of $2,800 per month. Your business loses money from the following:

 

Unnecessary extra wages

Falsified work hours increase payroll spend. For instance, a British Columbia accountant committed 50 hours of time theft, resulting in more than $2,600 in unearned pay. The employer incurred unnecessary extra wages until the fraud was brought to light.

 

Costs of investigating and recovering losses

Uncovering timesheet fraud often requires audits and employee interviews, which ends up consuming your already limited time and resources. The resulting costs pile up on the initial loss.

 

Erosion of morale and trust

Beyond direct financial losses, timesheet fraud can even damage morale. When one employee exploits the system, others may follow, normalizing a culture where cutting corners feels acceptable. Employees who don’t participate can grow resentful, creating distrust among team members.

 

More disputes and higher turnover rates

Payroll discrepancies often trigger grievances and disputes with HR. With 53% of employees considering quitting after only two payroll mistakes, timesheet fraud can quickly escalate from an accounting issue to a retention crisis.

 

Distorted forecasting and planning

Falsified time data skews project forecasts, which can lead to resource misallocation and staffing issues. For example, if you plan working shifts based on corrupted data, you may overstaff some areas while leaving others understaffed, causing delays and inefficiencies.

 

Regulatory and compliance risks

It’s important to note that intent doesn’t always matter to major regulatory bodies. The Fair Labor Standards Act (FLSA), IRS, and state labor agencies require accurate payroll reporting for taxes and compliance purposes. Even a sloppy or inconsistent report resulting from timesheet fraud can leave your business out of compliance and trigger:

  • Full compliance audit assessments
  • Back-wage premium claims
  • Tax penalties
  • Benefit recalculations

 

Now that we’ve examined the toll this fraudulent activity can take a toll on a company, let’s discuss what to look for so you don’t become a victim.

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How to troubleshoot timesheet fraud

Catching timesheet fraud before it escalates can save you time and resources. Here’s how to catch it before it hurts your payroll.

 

Analyze suspicious patterns

Fraud often shows up as repeated behaviors that don’t align with actual work. In employees’ timesheets, watch out for the following red flags:

 

Warning sign What it suggests
Perfect round numbers Padding hours for the timesheet to look full
Frequent edits Manipulating work hours after submission
Unexplained overtime Extra hours not tied to real work
Idle activity Time logged without output
Geofencing mismatches Clock in away from the job site

 

Use audit trails to verify changes

Enable the audit log in your timekeeping system to track every edit with a timestamp and user ID. If an employee or supervisor alters work hours, you’ll have a clear record to flag and review.

 

Use biometrics, GPS, or geofencing

Biometric solutions, such as fingerprint or facial recognition, prevent buddy punching, as employees must be physically present to clock in. On the other hand, GPS prevents clock-ins from off-site locations. Use geofencing to restrict clock-ins and clock-outs to designated job sites.

 

Cross-check with other systems

Compare employee timesheets against other tools like project management or scheduling software. For example, if an employee has logged eight hours but has no task updates on your project management tool, it could signal time padding.

 

Set up exception alerts

To help identify potential issues, modern time-tracking tools can automatically flag unusual entries, such as excessive overtime or double shifts. Set up a real-time alert so you can act before fraudulent errors turn into payouts. If you use time tracking to scale operations, as your business grows, the alerts can help you improve scheduling accuracy and keep labor costs predictable.

Prevent it before it starts: Policies, training, approvals, and audits

The consequences of timecard fraud range from distorting payroll and budgeting to compliance risks and decreased operational efficiency. The best approach is prevention:

  • Publish a clear timekeeping policy to set expectations from day one and assist employees with time management
  • Educate managers to effectively spot inconsistencies and review timesheets
  • To ensure accountability, implement two-step approval for overtime and timesheet edits
  • Preemptively conduct mini-audits and routine checks to identify errors or suspicious activities
  • Choose a payroll software with built-in approvals, audit logs, reporting features, and automated absenteeism rate calculations to reduce fraud risks

 

Next, let’s cover a few strategies you can use if you suspect that something is awry.

“For small businesses where time, flexibility, and cost are all at a premium, OnPay delivers easy-to-use, low-cost payroll processing that can grow with your team. We cycle through employees regularly, so having an option that doesn’t penalize us for adding and removing employees, or scheduling more pay runs, is a huge plus for us.”


— Matt Hrdlicka, Limitless Exhibits

How to investigate and respond to suspected timesheet fraud

If you suspect one of your employees is committing timesheet fraud, you can launch an investigation:

  1. Secure all relevant records and evidence of time fraud before taking any corrective action to protect the integrity of your records.
  2. Interview the employee and any supervisor involved to gather context.
  3. Cross-check recorded hours against system logs, videos, or point-of-sale data.
  4. Document your findings, clearly noting the dates of your investigation for accountability.
  5. Apply the policy consistently, keeping “pay for all hours worked” compliance in mind.

 

In the public sector, falsifying records carries heightened legal exposure, so investigate thoroughly and maintain detailed documentation.

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All-in-one automation: Integrations, alerts, and audit-ready reports

Timesheet fraud isn’t always about bad actors. More often, it’s about gaps in process, unclear expectations, or systems that make it easy to miss mistakes. Paying attention to those weak spots early can protect your payroll, your compliance standing, and the trust you’ve built with your team.

 

Whether you rely on simple policies, regular audits, or more automated systems, the goal is the same: accurate time data you can stand behind. When time tracking is clear, consistent, and easy to review, fraud becomes harder to hide. Honest mistakes are easier to fix before they turn into bigger problems. If you have any questions, our team is here to help!

Take a tour to see how easy payroll can be.

Jon Davis is the Sr. Content Marketing Manager at OnPay. He has over 15 years of experience writing for small and growing businesses. Jon lives and works in Atlanta.

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