What Is a Timesheet? Everything You Need to Know

A timesheet is one of the most fundamental documents in running a business with employees, yet it is also one of the most misunderstood and most poorly implemented. Most business owners know they need timesheets. Far fewer know exactly what a good timesheet captures, what the law actually requires, what gets overlooked in practice, and what separates a timesheet that protects the business from one that creates problems.

This guide covers all of it, from the basics through the requirements, common pitfalls, and what to look for in a timesheet system that actually works.

What Is a Timesheet?

A timesheet is a record of the hours an employee works during a given pay period. At its most basic level it captures when an employee started work, when they stopped, and the total hours for the period. In a well-built system it captures significantly more: break times, overtime hours, the specific projects or job codes the hours were worked against, whether those hours are billable to a client, and a manager approval record.

Timesheets serve four core business functions:

1. Payroll accuracy - Employees get paid for exactly the hours they worked, including correct overtime calculation.
2. Client billing - Service businesses need project-level hour records to bill clients accurately and defend those invoices.
3. Labor cost tracking - Understanding how many hours were spent on each project tells you whether that project was profitable.
4. Legal compliance - Federal and state law requires employers to keep accurate time records for non-exempt employees.

What a Timesheet Must Include

There is a meaningful difference between a timesheet that technically exists and one that actually does its job. Here is what every timesheet should capture.

Employee Information

Every timesheet entry needs to be tied to a specific person. This sounds obvious but paper-based and basic spreadsheet systems often have entries with no clear owner, making audits and disputes impossible to resolve. The timesheet should include the employee's full name, employee ID if applicable, and their department or role.

Pay Period Dates

The timesheet must clearly identify which pay period it covers. Whether your pay cycle is weekly, biweekly, or semi-monthly, the start and end dates of the period need to be on every timesheet. This is required for payroll records and becomes critical if a wage dispute arises.

Daily Clock-In and Clock-Out Times

Total hours alone are not enough. The timesheet should record the actual start and end time for each workday. This allows verification of overtime calculation, confirms break compliance, and creates an auditable trail. A timesheet that only shows "8 hours" for a day gives you nothing to work with if that entry is disputed.

Break Times

This is one of the most commonly skipped fields and one of the most legally significant. Most states have mandatory break requirements for shifts over a certain length. If your timesheet does not capture breaks, you cannot prove compliance if an employee files a wage claim. Break start and end times, or at minimum the total break duration per shift, should be recorded on every timesheet.

Regular vs Overtime Hours

Regular and overtime hours must be tracked separately. Federal law requires overtime to be paid at 1.5 times the regular rate for any hours over 40 in a workweek. Some states have daily overtime rules on top of that. A timesheet that does not separate regular from overtime hours makes correct payroll calculation impossible without additional manual work.

Project or Job Codes

For any business that bills clients, tracks project profitability, or wants to understand where labor is actually going, hours need to be allocated to specific projects, jobs, or cost centers. This is the field most businesses skip on basic timesheets and most regret later. Without project-level hours, you cannot produce an accurate client invoice, calculate project margins, or understand your true labor costs per job.

Billable vs Non-Billable Designation

Not all hours on a project are billable to a client. Travel time, internal meetings, administrative work, and rework may be non-billable. A timesheet that does not distinguish between billable and non-billable hours forces you to manually sort through entries at invoice time, which is both slow and error-prone.

Manager Approval

Every timesheet should have a documented approval step. Whether that is a physical signature or a digital confirmation, manager approval creates accountability on both sides. It establishes that the hours were reviewed before payroll was run and gives the business a defense if an employee later claims their hours were changed without consent.

Legal Requirements for Timesheets

The Fair Labor Standards Act requires employers to keep accurate records of hours worked for all non-exempt employees. It does not prescribe a specific format, but it does specify what data must be captured and how long records must be retained.

Under the FLSA, employers must record:

• Hours worked each workday and total hours each workweek
• The basis on which wages are paid (hourly rate, piece rate, etc.)
• Regular hourly pay rate
• Total daily or weekly straight-time earnings
• Total overtime earnings for the workweek
• Total wages paid each pay period

Records must be retained for at least three years. Time cards and work schedules must be kept for at least two years.

Common Timesheet Pitfalls

Even businesses that have a timesheet process in place make mistakes that create payroll errors, compliance gaps, and billing problems. These are the most common ones.

Rounding Errors That Compound Over Time

Many businesses round clock-in and clock-out times to the nearest quarter hour. This is legally permissible under the FLSA as long as it averages out and does not consistently benefit the employer. The problem is that most manual rounding systems are inconsistent. An employee clocking in at 8:07 gets rounded to 8:00 in one manager's system and to 8:15 in another's. Over a year, these inconsistencies either underpay employees (a wage liability) or overpay them (a direct cost).

Not Tracking Breaks Separately

Many timesheets record clock-in and clock-out but not breaks. This creates two problems. First, it makes break compliance impossible to verify. Second, it often results in employees being paid for break time that should be unpaid, or not being paid for short breaks that legally should be compensated. Federal law requires compensation for breaks of 20 minutes or less. Breaks of 30 minutes or more can be unpaid if the employee is completely relieved of duties.

Approving Without Reviewing

Manager approval becomes meaningless when it is treated as a rubber stamp. Managers who click approve on every timesheet without reviewing the underlying entries are not catching errors, are not identifying unusual patterns, and are not protecting the business. Approval should involve actually looking at the hours against the schedule and flagging anything that does not match.

Using Spreadsheets for Growing Teams

Spreadsheet timesheets work for a solo operator or two-person team. They stop working reliably at five or more employees. Formula errors, version control problems, manual data entry mistakes, and the inability to verify who entered what make spreadsheet timesheets a compliance and payroll risk as teams grow. The number of payroll errors traceable back to manual spreadsheet entry is consistently underestimated by small business owners.

No Submission Deadline

Without a firm deadline for timesheet submission before payroll runs, payroll becomes dependent on chasing down employees for missing time entries. This delays payroll, creates estimation errors, and results in corrections on future pay periods that create confusion. Every business needs a non-negotiable cutoff time for timesheet submission and a system that reminds employees automatically.

Missing Project-Level Data

This is the most expensive oversight for service businesses. When timesheets only capture total hours without tying them to projects, the business cannot produce accurate client invoices, cannot calculate which projects were profitable, and cannot make informed decisions about staffing. Many businesses discover this gap only when a client disputes an invoice and they have no project-hour records to support their billing.

Things Businesses Consistently Overlook on Timesheets

Beyond the common mistakes, there are things that almost never make it onto basic timesheets but should.

Travel Time

For employees who travel between job sites, travel time is often compensable under federal and state law. Whether commute time counts, whether driving to a first job site counts, and whether travel between sites during the day must be paid all have specific legal answers that vary by circumstance. If your timesheets do not capture travel time as a separate category, you are either underpaying employees or unable to verify you are not.

On-Call and Waiting Time

Employees who are required to remain on-call in a way that significantly restricts their activities may be entitled to compensation for that time. Waiting time at a job site is generally compensable. These categories are easy to miss on a basic timesheet and can create wage liability if not tracked.

Training and Meeting Time

Required training and mandatory meetings are generally compensable work time. Many businesses track these hours informally or not at all. If a wage claim is filed, unrecorded training and meeting time becomes a liability that the employer cannot rebut with documentation.

Correction and Amendment Records

When a timesheet is corrected after submission, the original entry and the correction should both be preserved. A system that simply overwrites the original gives you no audit trail. If an employee later claims their hours were changed without their knowledge, you need to be able to show what the original entry was, who changed it, when, and why.

PTO and Leave Integration

Timesheets that only capture worked hours create a gap when employees take PTO, sick leave, or holidays. The full picture of hours for payroll purposes includes both worked and leave hours. A timesheet system that does not integrate with PTO tracking forces manual reconciliation at every payroll run.

What to Look for in a Timesheet System

Whether you are evaluating your first digital time tracking system or replacing a spreadsheet-based process that has outgrown the business, here is what actually matters.

• GPS verification at clock-in. Eliminates buddy punching and confirms employees are where they should be when they start work.
• Project-level time tracking. Every hour should be allocated to a specific project or job code automatically, not filled in manually after the fact.
• Automatic overtime calculation. The system should calculate daily and weekly overtime correctly based on your state rules, not leave it to manual math.
• Break tracking. Clock-out for breaks and clock back in, with the system handling the math and compliance documentation.
• Manager approval workflow. Approval should require a deliberate action after reviewing the entries, not a single click that bypasses review.
• Payroll report export. The timesheet data should flow directly into a payroll report that your payroll provider or accountant can use without re-entry.
• Billable hour flagging and invoice generation. Billable hours should flow from the timesheet to an invoice with minimal manual steps.
• Amendment audit trail. Any changes to a submitted timesheet should be logged with who made them and when.
• PTO integration. Approved PTO should appear on timesheets automatically so the full picture of each pay period is in one place.

How Updoot Handles Timesheets

Updoot's timesheet system is built around the requirements that matter most for small and mid-sized businesses. Employees clock in and out using GPS verification from their phone or a kiosk, so every punch is tied to a location. At clock-in, employees select the project they are working on, which means every hour is automatically allocated to a job without anyone having to fill in a timesheet after the fact.

Overtime is calculated automatically. Breaks are tracked as part of the clock-in flow. Manager approval happens through a workflow that shows the actual entries before confirmation, not a rubber stamp. When it is time to run payroll, Updoot generates a complete payroll report with regular hours, overtime, PTO, and project breakdowns all in one export.

For client billing, billable hours from the timesheet can be pushed to an invoice in two clicks. No manual calculation, no exporting to a spreadsheet, no reconciling between two systems. The data flows directly from the time clock through to the invoice.

PTO requests are built into the same platform, so approved time off appears on timesheets automatically. Every amendment to a timesheet is logged. The full audit trail is always available.

At $5 per user per month, Updoot replaces the spreadsheet, the separate time tracking app, the PTO management tool, and the manual invoicing process with one connected system. For a 10-person team that is $50 per month to have every timesheet requirement covered correctly from day one.