FT

HR & Legal

Notice Period Calculator

Estimate statutory, WARN, and contract notice periods, earliest end dates, and possible notice shortfalls.

Country / rule set Select the legal framework to estimate from. Ending type Use contract terms when they are more specific.
Service years Complete years with the employer.
Extra months Months after complete years.
Age Used for Australia's age 45 extra week.
Contract notice (weeks) Entered contract, award, agreement, or policy notice.
Weekly pay Optional estimate for notice pay or shortfall value.
Notice given date The date notice is communicated.
Planned last working date Used to check whether enough notice is planned.

Rule basis

Statutory / official notice
4 weeks
Contract notice
0 weeks
Applied minimum
4 weeks

UK employer notice and redundancy notice use one week after one month, one week per full year from 2 to 12 years, capped at 12 weeks.

Required notice

4 weeks

Earliest estimated end date: 30 May 2026.

Date check

Notice starts
3 May 2026
Planned notice
31 days
Shortfall
0 days
Last day estimate
30 May 2026

Pay estimate

Notice pay value
$4,000.00
Shortfall value
$0.00

How this notice period calculator works

The calculator compares an official statutory or WARN minimum with any contract notice entered, then applies the longer period. Date estimates assume notice starts the day after it is given, which matches UK and Australian guidance. Use the contract field for employment contracts, awards, enterprise agreements, handbooks, union agreements, or policies that require more notice.

Formulas

contract_notice_days = contract_notice_weeks * 7
required_notice_days = max(official_notice_days, contract_notice_days)
notice_start_date    = notice_given_date + 1 day
earliest_end_date    = notice_given_date + required_notice_days
shortfall_days       = max(0, required_notice_days - planned_notice_days)
pay_estimate         = required_notice_days / 7 * weekly_pay

Official source assumptions checked

UK employer notice uses statutory minimums from GOV.UK redundancy and dismissal guidance. UK employee resignation uses the GOV.UK minimum of one week after more than one month of employment. Australia employer notice uses the Fair Work Ombudsman National Employment Standards table, including the extra week for employees over 45 with at least two years of service. US WARN uses the Department of Labor 60 calendar day rule for covered plant closings and mass layoffs.

What this tool does not include

It does not decide whether dismissal is lawful, whether serious misconduct removes notice, whether a worker is casual or an employee, whether a US WARN event is covered, state mini-WARN rules, garden leave, payment in lieu clauses, collective agreements, award-specific Australian resignation rules, or payroll tax treatment. Treat it as a planning estimate, not legal advice.

References

FAQ

Should I use statutory or contract notice?

Use the longer enforceable period. Statutory rules set a floor in places such as the UK and Australia for employer notice, but employment contracts, awards, union agreements, or company policies can require more notice.

When does the notice period start?

This calculator starts notice on the day after notice is given. For example, if notice is given on 2 May and the required notice is four weeks, the estimated earliest end date is 30 May.

Does the calculator cover payment in lieu of notice?

It estimates the pay value of the notice period from weekly pay, but it does not decide whether payment in lieu is allowed. That usually depends on the contract, local law, and whether the employer and employee agree.

Why does US individual notice show contract-based results?

US federal law does not create a general individual notice period for every resignation or termination. The federal WARN Act is different: it can require 60 days for covered mass layoffs and plant closings.

Does public holiday or leave extend the notice period?

Not automatically in this calculator. Some jurisdictions or contracts have rules for leave during notice, but the date estimate here counts calendar days from the date notice is given.