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Notice calculator

Notice Period Calculator

What this tool does

Check the statutory minimum notice period, compare it with any longer contractual notice, and estimate the likely end date of notice.

Use this page when the main question is how long notice should run and what that means for the likely last working day, final payslip or payment in lieu.

Important:

Statutory notice is the legal minimum. If the contract gives more, the longer contractual notice usually matters in practice.

Checked against official sources

Last reviewed: 29 March 2026. Checked against GOV.UK and Acas guidance on statutory minimum notice and redundancy notice issues.

Checked on

29 March 2026

Official source links

GOV.UK and Acas notice guidance linked below

Recheck when

Contract terms, notice type or dismissal timing changes

Core statutory rule used

  • At least 1 week if employed between 1 month and 2 years.
  • 1 week for each full year if employed between 2 and 12 years.
  • 12 weeks after 12 years of service.

What this page does not try to solve

  • Every dismissal edge case.
  • Detailed pay calculations during sickness or garden leave.
  • Disputes about whether the contract notice clause is enforceable.
After the result

Use the notice result as part of the wider leaving-work check

The notice figure is usually only one part of the picture. Most users also need to check final pay, holiday owed during notice, and whether the employer is paying notice normally or by payment in lieu.

Best next pages

Use these after the notice result

Official sources used

Official sources checked for this page

GOV.UK: Notice periods

Used for the statutory minimum notice lengths and redundancy notice overview.

Open official source

Acas: Redundancy notice

Used for practical worker guidance on written notice, leaving early, and related redundancy-notice issues.

Open official source