Sample Letter for Overtime Approval: Format Guides, Common Use Cases & Ready Templates

Every employee has stood at their desk at 4:50pm, realising a critical task will take extra hours to finish properly. Most overtime requests get denied not because the work is unnecessary, but because the request is unclear, last minute or incomplete. A good Sample Letter for Overtime Approval removes this friction, and helps you get sign off quickly and fairly. This guide will walk you through best practices, 7 common scenario templates and answers to every question you might have.

Why A Proper Overtime Request Works

Most overtime denials don't happen because the work isn't needed. They happen because requests are vague, sent last minute, or miss critical details managers need to sign off.

A well-written Sample Letter for Overtime Approval removes guesswork for both you and your supervisor. It documents exactly why extra hours are required, sets clear expectations, and creates an official record for payroll.

Before you send any request, cross check this list. Even one small missing detail can delay approval by multiple business days.

Sample Letter for Overtime Approval: Client Project Deadline

Subject: Overtime Approval Request - Q3 Client Launch

Hi Sarah,

I’m requesting approval for 4 overtime hours this Wednesday 12th October, 5pm-9pm.

The GreenTech client moved their final launch review one day early. These hours will let me finalize testing and compile the presentation deck. Without this extra time, we will miss the client deadline and risk contract renewal.

Comp time will be taken the following Friday afternoon if approved.

Thank you,
Mike Carter
Senior Developer

Sample Letter for Overtime Approval: Staff Shortage Cover

Subject: Overtime Request - Weekend Retail Cover

Hi David,

I am requesting approval for 8 overtime hours this Saturday 15th October, 9am-5pm.

Two front desk team members called out sick for the weekend sale. No other available staff can cover this shift. Turning away customers this weekend will cost an estimated $1,800 in lost sales.

I confirm I have not worked more than 10 overtime hours this pay period already.

Regards,
Lisa Moore
Shift Supervisor

Sample Letter for Overtime Approval: System Maintenance Window

Subject: Overtime Approval: Off-Hours Server Upgrade

Hi Raj,

I request approval for 3 overtime hours tonight 10th October, 10pm-1am.

The scheduled server upgrade can only run outside business hours to avoid disrupting team work. This upgrade will fix the slow login issue that has impacted the whole team all month.

No additional costs will be incurred for this work. Time will be logged to IT operations budget.

Thanks,
Jake Reed
System Administrator

Sample Letter for Overtime Approval: Emergency Customer Support

Subject: Overtime Request: After Hours Client Outage

Hi Maria,

I am requesting retroactive approval for 2.5 overtime hours worked yesterday evening.

Our largest client experienced a full platform outage at 6pm yesterday. I remained on call until the issue was fully resolved. No other support agent was available for this escalation.

Full incident logs are attached for reference.

Best,
Zoe Hall
Support Lead

Sample Letter for Overtime Approval: End Of Month Payroll Close

Subject: Overtime Approval: Month End Payroll Processing

Hi Tom,

I request approval for 6 overtime hours this Thursday and Friday, 4pm-7pm both days.

Three new employee onboarding delays mean we have extra payroll verification to complete. Running payroll on time is required to avoid late payment penalties and staff complaints.

This overtime will not be required next pay period.

Kind regards,
Anna Lee
Payroll Officer

Sample Letter for Overtime Approval: Training Event Preparation

Subject: Overtime Request: Company All Staff Training

Hi Claire,

I am requesting approval for 5 overtime hours tomorrow 11th October, 6pm-11pm.

I need to set up the venue, test presentation equipment and prepare attendee packs before the all staff training day. No team members are available during regular hours to assist with this work.

All expenses for this work are pre-approved in the training budget.

Thanks,
Owen Davis
HR Coordinator

Sample Letter for Overtime Approval: Annual Inventory Audit

Subject: Overtime Approval: Annual Warehouse Inventory Audit

Hi Greg,

I request approval for 12 overtime hours this Sunday 16th October, 7am-7pm.

External auditors require a full uninterrupted warehouse inventory count this weekend. This count is legally required for our annual financial reporting.

Meals and transport allowance will be claimed per company policy.

Regards,
Rita Khan
Warehouse Manager

Frequently Asked Questions about Sample Letter for Overtime Approval

When should I submit an overtime approval request?

Submit requests at least 48 hours before the overtime work whenever possible. Only submit retroactive requests for true unplanned emergencies.

Can my manager deny my overtime request?

Yes, managers may deny overtime if work can be rescheduled or budget is not available. Always get written approval before working extra hours.

Should I send this as an email or printed letter?

Almost all workplaces accept email overtime requests. Always send a digital copy for official records even if you also submit a paper form.

How long should an overtime request letter be?

Keep requests to 3-4 short paragraphs maximum. Only include critical details, avoid extra unrelated information.

Do I need to state preferred compensation?

Yes, clearly state if you are requesting pay or comp time. This removes confusion for payroll and your supervisor.

Can I request overtime for multiple days at once?

You can request overtime for up to one full week in one letter. List each date and hours separately in your request.

Who do I send the overtime approval letter to?

Send the request directly to your direct supervisor. Copy payroll or HR only if stated in your company policy.

What if I need overtime last minute?

Call or message your manager immediately, then follow up with the written request within 24 hours. Document all verbal approvals.

A clear, honest overtime request makes approval far more likely. Every example on this page follows the simple rules that managers look for when reviewing extra hours. You can adapt any of these templates for your workplace in less than 2 minutes.

Save this page for the next time you need to request extra hours. Adjust the details to match your situation, double check the required information, and send your request with confidence. Always keep a copy of every approval for your personal records.