The last day to cancel is the end of the current term minus the notice period, and your notice usually has to arrive by that day, not just be sent. For a contract ending on December 31 with three months’ notice, that means September 30. The calculator below does the counting; the rest of this article explains the rules behind it, because a few details can move the deadline by days or weeks.
The three things you need from the contract
Every notice deadline comes from three pieces of information, usually in the clauses on term, renewal and termination:
- The reference date. Most often the end of the current term. Some contracts count from the renewal date instead, which is the day after.
- The notice period. A number of months, weeks or days. Days may be calendar days or business days.
- What counts as giving notice. Usually written notice received by the other party, sometimes notice sent, sometimes a form in a portal.
If any of these is unclear, settle it well before the deadline, for example by asking the other party to confirm it in writing.
How the counting works
Months
Months are counted on the calendar, not as 30 days. Three months before December 31 is September 30, and three months before June 15 is March 15. When the reference date is the last day of a month, the deadline is the last day of the earlier month: one month before March 31 is February 28, or February 29 in a leap year.
Days and weeks
Calendar days count every day, weekends and holidays included: 30 days before December 31 is December 1. Business days skip weekends, and often public holidays too, so 10 business days can easily stretch across two full weeks. If the contract just says “days”, it usually means calendar days, but read the definitions clause to be sure.
Arrived, not sent
Most contracts require notice to be received by the deadline. A letter mailed on the last day is late. Allow a few business days for mail or courier, and keep proof of delivery. Even with email, sending a day or two early protects you against an inbox that is not read until the next morning.
Work out your deadline
Enter the end of the current term and the notice period. The calculator counts back, shows the last day your notice must arrive, and suggests a day to send it with some margin.
Enter the end of the term to see your deadline.
A calculation, not legal advice: the wording of your contract decides.
Five mistakes that cost a whole renewal term
- Counting from the wrong date. The signing date is not the end of the term, and an earlier renewal may have moved the end date. Check the latest order form or renewal confirmation.
- Missing a changed notice period. Amendments and updated terms of service can change it. The version you signed may not be the one that applies now.
- Treating “days” as business days, or the other way around. The difference can be a week or more.
- Sending on the last day. If notice must arrive by the deadline, it has to go out earlier.
- Giving notice the wrong way. An email to your account manager may not count if the contract requires written notice to a specific address.
Keeping track of all your deadlines
With a few contracts, you can work out each deadline when it comes up. With thirty, each with its own term and notice period, you need a system: one that has every contract’s end date and notice period in one place, a reminder well before each deadline (thirty to ninety days ahead leaves time to compare offers), and someone responsible for deciding.
Where the wording of a contract is unclear, ask the other party to confirm the deadline in writing, or ask a lawyer.