Designing a Timesheet Approval Process: Who Approves Overtime, Leave, and Project Hours?

Once an organization grows past thirty people, informal sign-offs break down. A sound timesheet approval process separates physical attendance, leave balances, and project budgets, so middle managers, HR, and payroll don't end up untangling disputed hours on closing day.

Every month around the twenty-eighth, growing companies hit the same friction. A project manager discovers that a developer billed forty hours of weekend work to a fixed-price client deliverable without warning anyone. An operations supervisor realizes that a departmental director granted two senior technicians leave for the same critical deployment week without checking the shift roster. Payroll cutoff is twenty-four hours away, and three traveling managers have unapproved timecards sitting in their inboxes.

Approval workflows fail because companies treat every hour the same way. A leave request, an overtime claim, and a block of client-billable hours are different operational and financial commitments. Force them through a single manager and someone ends up signing off on numbers they cannot verify.

The Three Streams: Attendance, Absence, and Project Cost

To build a working approval chain, first separate what is being validated. In a multi-level or matrix organization, no single person has all the context needed to approve a monthly record.

``` +--------------------+ +---------------------+ +----------------------+

+--------------------+ +---------------------+ +----------------------+

v v v Shift Supervisor Line Manager + Project Manager & HR Coordinator Operational Head (Budget Owner) \ | / +--------------------------+--------------------------+

| v Final Payroll Export Lock ```

1. Leave and Absence

Leave approval is mainly a staffing decision, not a financial one: can the team keep coverage while the employee is away?

• Who must approve: The direct supervisor or shift lead who knows the daily workload and who can cover for whom.
• Who must verify: HR, who tracks entitlement balances, statutory entitlements, and medical certificates.
• Where it breaks: When leave approval goes straight to a department head. A remote executive doesn't know that two other shift members have already asked for the same Friday off. The request is approved, the team is understaffed, and unplanned overtime fills the gap.

2. Overtime and Working-Time Adjustments

Overtime has immediate compliance and payroll consequences: statutory rest periods, daily working-time limits, and premium wage multipliers.

• Who must approve: The line manager who requested the work, followed by a budget holder if the hours exceed departmental targets.
• Where it breaks: Approval after the fact. When an employee logs twelve hours on a Saturday and submits them on the last day of the month, the manager has no good option. Rejecting the record causes labor friction; approving it blindsides finance. Overtime should be pre-authorized before the work happens, and the timesheet should only confirm the hours worked against that pre-approved cap.

3. Project and Client Hours

Project time tracking measures budget burn and deliverable progress. An employee can work a standard eight-hour day (verified by their line manager) and still book those hours to the wrong internal cost center or to a client budget that is already spent.

• Who must approve: The project manager or account lead responsible for that job code.
• Where it breaks: When line managers approve project allocations. A line manager knows their direct report worked forty hours this week, but not whether fifteen of those hours belong to Project A or to internal overhead. The error goes straight into the project margin reports.

Designing the Workflow: A Practical Setup Checklist

Keep the approval chain simple. Once an approval needs more than two steps, people start rubber-stamping records without reading them. Use this checklist to set clear boundaries.

Step 1: Define Primary and Secondary Roles for Matrix Teams

• Why it is here: In a matrix organization, staff report to functional managers for career progression and to project leads for daily assignments. Both need oversight, but of different parts of the record.
• What happens if skipped: The project lead assumes the line manager checked statutory rest compliance, and the line manager assumes the project lead reviewed billable hours. Nobody checks the data, and calculation errors go unnoticed. For more on this failure, see our analysis of manual overtime calculation errors and retroactive corrections.

Step 2: Separate Absence Workflows from Monthly Timesheet Sign-Off

• Why it is here: Leave requests come in weeks ahead. Monthly timesheet sign-offs happen in a tight forty-eight-hour window after month-end.
• What happens if skipped: If leave approval is bundled into the month-end sign-off, supervisors discover holiday overlaps long after employees have booked travel.

Step 3: Set Mandatory Delegation Rules

• Why it is here: Supervisors go on leave, fall ill, or visit remote client sites during payroll closing week.
• What happens if skipped: One absent manager stops the closing process for an entire department. Administrative staff chase signatures through personal messaging apps or skip the review to meet the accountant's deadline.

Step 4: Set a Hard Monthly Closing Cutoff

• Why it is here: Timesheets must freeze once operational reviews finish, so payroll receives data that no longer changes.
• What happens if skipped: Retroactive edits trickle in while the accountant is processing payroll summaries, and what management approved no longer matches what was paid.

How Multi-Level Software Structures the Sign-Off

Spreadsheets can't handle conditional multi-level approvals without email chains and competing file versions. Web-based platforms separate the streams through role permissions and automated routing.

SimpliTime, developed by DVP Systems Kft., splits these workflows between line supervision and cost accounting. It records time by project and activity on the web and runs leave requests through a separate workflow with real-time balance calculations.

For multi-tier teams, the Profi package (net €11.09 per user per month, minimum ten users) adds two-level and project-based approval flows, shift planning, and anomaly reporting. Instead of sending everything to one inbox, team leads sign off on shift presence and project managers review the hours booked to their deliverables.

``` Employee logs hours via web or iOS app

| +---> Anomaly detection flags roster mismatches

| [Level 1 Approval] Line Manager verifies attendance & shift coverage

| [Level 2 Approval] Project Lead validates client/activity hours

| Monthly Closing Lock (Data frozen)

| Export generated for accountant / payroll processing ```

This structure can cut monthly HR administration because cross-departmental disputes get settled before closing day. Since employees record hours against preset activity parameters, administrative staff typically see fewer payroll errors and fewer follow-up questions from the external accountant.

Approvals also stall when people can't reach the system from the field. Field technicians and on-site staff can log hours in the native iPhone or Android app, while desktop users work in a mobile-friendly web browser with nothing to install. Email notifications remind approvers about pending submissions, and an audit log records who signed off on each record and when.

Managing the Monthly Lock and the Payroll Handoff

The last phase of the approval process is the handoff from operational management to payroll preparation.

Once the two-level review is complete, lock the month. A lock stops employees and managers from making unrecorded changes after management sign-off. If a real correction is needed, such as a late medical sick slip, it goes through an explicit correction protocol with a logged revision note, not a silent edit.

Time-tracking tools don't replace payroll accounting software. They prepare clean, verified data for the accountant. For how structured summaries take the rush out of monthly closing, see our practical guide on preparing payroll data.

From the locked data, the system generates customized Excel exports, allowance breakdowns, and overtime multiplier summaries. When the accountant receives attendance data that has already passed operational and project checks, month-end closing becomes routine reconciliation instead of a last-minute scramble.