How notice periods actually work
Your notice period is the gap between telling your employer you are leaving and your final day on payroll. Two things decide its length: what your contract says, and what the law in your country sets as a floor. The contract usually wins, because it is almost always longer than the statutory minimum — but it can never be shorter.
The rules in each market
United States
Employment is at-will in 49 states (Montana is the exception after a probationary period), so there is no legal requirement to give notice at all. Two weeks is a professional norm, not a law. The practical risks of not giving it are a burned reference and, at some employers, forfeiting accrued PTO payout or a bonus. Note the reverse too: your employer can end the relationship the same day you resign, and in many states is not obliged to pay out the remaining two weeks unless policy or contract says so.
United Kingdom
Statutory minimum notice from an employee is one week once you have been employed a month or more, but contractual notice of one to three months is standard for salaried roles. Your employer owes you a week per full year of service, up to 12 weeks. Garden leave and payment in lieu of notice (PILON) both require a contract clause.
Canada
Employment standards vary by province. Most require the employee to give one to two weeks depending on length of service — for example Ontario requires no employee notice under the ESA for most resignations, while British Columbia and Alberta set one to two weeks. Employer-side notice is far longer, and common law reasonable notice can exceed statutory minimums considerably.
Australia
The Fair Work Act sets minimum notice by length of service: one week under a year, two weeks for one to three years, three weeks for three to five, and four weeks beyond five years. Awards, enterprise agreements and individual contracts often require more. Employees over 45 with more than two years' service get an extra week on the employer's side.
Calendar days or working days?
Read your contract carefully — "four weeks' notice" almost always means four calendar weeks, ending on the same weekday four weeks later, including the weekends. "Twenty working days" is a different and slightly longer period because weekends and public holidays are skipped. If the contract just says "one month", the convention is the same date in the following month, so notice given on the 12th ends on the 12th.
Before you hand it in
- Check how accrued holiday is treated — in the UK and Australia it is usually paid out or taken during notice.
- Confirm whether a bonus, commission or equity vest lands inside your notice period.
- Ask whether your employer expects you to work it, or applies garden leave.
- Get your resignation in writing, with the date, even if you resign in person.
- Health insurance in the US usually runs to the end of the month of your last day — verify, don't assume.
This calculator works out dates. It is not legal or HR advice — your contract and local employment law are what govern your notice.
FAQ
Do I legally have to give two weeks' notice in the US?
No. Employment is at-will in 49 states, so two weeks is a professional norm rather than a legal requirement. The practical cost of skipping it is your reference and, at some employers, a forfeited PTO payout or bonus.
What is the minimum notice in the UK, Canada and Australia?
UK: one week from the employee once you have a month's service, though contracts of one to three months are standard for salaried roles. Canada: set by province, commonly one to two weeks. Australia: one to four weeks under the Fair Work Act depending on length of service. A contract can require more, never less.
Does my notice period include weekends and public holidays?
In calendar mode, yes — "four weeks' notice" normally means four calendar weeks ending on the same weekday. Working-days mode skips weekends and any holidays you enter, which is what a contract means by "20 working days".
Can I take annual leave during my notice period?
Usually only by agreement, and many employers refuse so that you can hand over properly. In the UK and Australia untaken statutory leave is normally paid out instead. Check your contract before you plan a holiday around your leaving date.