What is Notice Period?

A notice period is written into every contract and determines how far in advance you must act. It counts back from the contract end date or renewal date to give you the latest date by which you must have delivered a valid cancellation notice.

The practical example: a cleaning contract ending 31 December with a three-month notice period. You must give notice by 30 September. If you send the letter on 1 October — even if it arrives the same day — you are technically late and the contract renews for another full year.

Notice periods vary significantly by contract type. Cleaning and facilities services typically require one to three months; IT and SaaS contracts are similar. Energy contracts often allow one month; maintenance and installation contracts typically need three to six months. Hospitality suppliers for food and beverage commonly use one to two months.

One of the most common errors in contract management: businesses note the contract end date in a calendar rather than the notice deadline. By the time the end date arrives, the window has long since closed.

There is also an important distinction in wording. Some contracts specify "calendar months" — meaning notice must be given from the first day of the relevant month. Others specify a fixed number of days. "Three calendar months" and "90 days" can differ by several weeks depending on when the notice period begins.

The notice period is the most underestimated datapoint in contract management. Most businesses record when a contract ends. Very few separately calculate and monitor when they must give notice. Those are not the same date — and the difference, missed, costs money.

A contract management system that tracks notice deadlines — not just end dates — and sends automated reminders at 90, 60 and 30 days before the deadline is the most direct way to close this gap. The cost of missing a notice deadline is a full unwanted contract year.