The UK Statutory Notice Period Calculator works out the minimum notice required to end an employment relationship under section 86 of the Employment Rights Act 1996 (ERA). The rule is asymmetric: the employer-side minimum grows with length of service, while the employee-side minimum is a flat one week regardless of how long they have worked.
How it works
When the employer gives notice, the statutory minimum is:
1 month to < 2 years → 1 week
2 years (each complete) → 1 week per complete year
12 years or more → 12 weeks (the cap)
So an employee with 5 complete years of service is entitled to 5 weeks of notice from the employer; one with 15 years still gets only the capped 12 weeks. Statutory notice counts complete years only — part-years are ignored for this calculation.
When the employee resigns, section 86 requires just one week’s notice once they have been employed for one month or more, and this does not rise with service.
A contract may specify a longer notice period, in which case the longer figure applies — but a contract can never go below the statutory minimum. The tool compares the statutory figure with any contractual period you enter and tells you which governs.
Example and notes
An employee dismissed after 7 complete years is owed 7 weeks of employer notice. If their
contract specifies 3 months (about 13 weeks), the contractual period wins because it is more
generous. If the contract said only 2 weeks, the statutory 7 weeks would override it. Notice can
be worked or paid in lieu (PILON) where the contract allows. This tool gives the statutory floor
and is not a substitute for legal advice; unfair-dismissal and redundancy rights are separate.
All calculations run locally in your browser.