Overtime & Extra Hours Debit Note Template
Charge extra hours beyond the estimate — hours, rate and reference — in a professional PDF.
100% freeNo signupNo watermarkInstant PDF download
Debit Note
How to write a overtime & extra hours debit note
An overtime debit note charges hours worked beyond what the original invoice covered — extra time on an hourly job, out-of-hours work, or a scope that ran long. It adds the extra hours at the agreed rate against the invoice.
This template opens with itemised lines. Reference the invoice, charge the extra hours at their rate, note the work, and download a PDF debit note.
What to include
- “Debit Note” label with its own number and date
- A reference to the original invoice
- The extra hours and the rate charged
- A note of the work / dates
- The new total now due
Note: Charges hours beyond the estimate · references the original invoice.
Frequently asked questions
How do I bill for hours over my estimate?
Issue a debit note referencing the invoice for the extra hours at the agreed rate, noting the work and dates. It adds the overtime to the balance without editing the original invoice.
Should I flag overtime before doing it?
Ideally yes — get the extra time agreed first. The debit note then formalises what was authorised, which avoids a dispute at billing.
Is the overtime debit note template free?
Yes — create and download it with no account.
Is this debit note generator free?
Yes — CalculatorAI's debit note generator is completely free. Create, customise and download as many professional PDF debit notes as you want, with no signup, no watermark and no trial limit. A free account adds saved clients, history and the Invoices Tracker.
What is the difference between a debit note and a credit note?
A debit note increases the amount owed on an invoice already issued — for an undercharge, additional charges or interest. A credit note does the opposite: it reduces or cancels what is owed. Buyers also raise debit notes to notify a supplier of a return or a claim.
Keep debit notes and invoices in one place
A debit note increases what a customer owes on an invoice already sent. The Invoices Tracker keeps your invoices, debit notes and what each client still owes together — so your books always reconcile.
Open the Invoices Tracker