Board Meeting Notice Period
Reverse-calc the last day notices must go out before a board vote.
Written and maintained by Paul Clark, Redmoon Software · Rules last verified · Changes & corrections
These calculators are for informational purposes only and do not constitute legal, financial, or professional advice.
How the Board Meeting Notice Period works
The Board Meeting Notice Period calculator works backward from a meeting or vote date to the last day notice can lawfully go out. Enter the meeting date and the notice period your constitution requires, choose the unit that period is expressed in (calendar days by default), and the tool returns the date by which notice must be issued, along with the number of clear days that date leaves between notice and meeting.
The unit selector is the point of the tool. Notice periods in constitutions and bylaws are written in whichever unit the drafter reached for — twenty-one clear days, ten business days, two weeks, one month — and those are not interchangeable. Twenty-one calendar days and twenty-one business days differ by about ten days on the same meeting date, which is the difference between a valid resolution and one open to challenge. Because the tool counts backward from the meeting rather than forward from today, it answers the question a company secretary actually has: given a fixed board date, is the notice window still open?
Two cautions that the arithmetic cannot settle for you. Many constitutions specify <em>clear days</em>, meaning the day notice is given and the day of the meeting are both excluded from the count, which pushes the notice date one or two days earlier than a plain count suggests; if your rule uses that language, add the extra days deliberately rather than assuming they are built in. And notice is generally treated as given when deemed served rather than when sent — post frequently carries a deemed-receipt rule of two or more business days, and electronic notice may have its own provision. Work back from the deemed-service date, not from the date you press send.
Worked example
A board meets on Tuesday, 30 June 2026 under a constitution requiring twenty-one days’ notice. Read as calendar days, notice must be issued by Tuesday, 9 June. Switch the unit to business days and the same twenty-one becomes Friday, 29 May — eleven days earlier, from the identical clause read a different way. If the constitution also says <em>clear</em> days and notice goes by post with a two-day deemed-service rule, the practical deadline moves earlier again, which is why the unit and the service rule both need settling before the date is trusted.
Frequently asked questions
What are "clear days" and does the calculator apply them?
Clear days exclude both the day notice is given and the day of the meeting, so twenty-one clear days means notice must go out at least twenty-two calendar days before the meeting date. The calculator counts a plain period, so twenty-one calendar days before a 30 June meeting returns 9 June, and its “clear days before meeting” figure shows what that date actually gives you: twenty, one short. If your rule says clear days, enter one more day than the rule states (twenty-two here, giving 8 June and twenty-one clear days) and check that the clear-days figure matches your rule.
Should I count from when notice is sent or when it is received?
Generally from deemed service, not dispatch. Constitutions and companies legislation commonly deem posted notice served a set number of business days after posting, and email or portal notice may have its own rule. Work backward to the deemed-service date and then allow further time for the sending itself — posting on the notice deadline is usually too late by exactly the deemed-service period.
What happens if notice is short?
That depends on the constitution and the governing companies law, and it is rarely fatal in itself. Many regimes allow short notice where the requisite proportion of members or directors consents, and some resolutions can be passed by written consent instead. But short notice given without that consent leaves a resolution open to challenge, which is a poor position for anything consequential. Where the date is tight, take the consent route deliberately rather than hoping nobody counts.
What this calculator does not do
A limitation you know about costs far less than one you find after the deadline. These are the specific things this tool cannot work out for you.
- Notice periods come from the constitution, bylaws or shareholders’ agreement, and most are expressed in clear days — a convention that excludes both the day of notice and the day of the meeting. Check which convention yours uses before trusting a tight date.
- It does not model short notice by consent, which most constitutions permit if enough members agree.
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