When it comes to annual planning, most firms default to four quarters. But there’s a better rhythm: trimester annual planning. Instead of four three-month quarters, you work in three four-month cycles – with built-in recovery time to review, reset, and celebrate.

What Is Trimester Annual Planning?

The concept comes from Daniel Priestley, author of Oversubscribed and founder of Dent Global. He suggests thinking in trimesters rather than quarters:

  • Three “go” months – high-energy execution, delivery, and growth.
  • One “calm” month – lighter pace for reviewing, resetting, and celebrating.

This structure ensures you maintain sustainable momentum without running into year-end burnout.

Why Trimester Annual Planning Works

  • Energy management – With recovery months built in, your team stays motivated all year.
  • Smarter retreats – Schedule them in the calm month, such as July or November, when energy is lower and planning is natural.
  • Better celebrations – Hosting a “Christmas party” in late November or early December avoids clashing with venue shortages and last-minute fatigue.

Stick to the Rhythm

At Inspire, we’ve used this approach to shape our retreats and annual events. Instead of cramming everything into December, trimester annual planning allows us to:

  • Reset mid-year with July retreats.

  • Get ahead of the curve with early December celebrations.

  • Keep the culture energised without draining the team.

This is consistent with research showing many organisations are shifting toward more structured and meaningful meetings, reducing wasteful gatherings and focusing on intentional, impactful rhythm. (See 👉 Stop Wasting People’s Time with Bad Meetings — Harvard Business Review)

How to Implement Trimester Annual Planning

  1. Plan three cycles of four months each:
    • Cycle 1: Dec–Mar
    • Cycle 2: Apr–Jul
    • Cycle 3: Aug–Nov
  2. Use the calm month for retreats – review progress, reset goals, and celebrate wins.
  3. Book celebrations early – avoid December clashes and finish the year with clarity.

The Takeaway

Annual planning doesn’t have to mean grinding through four rigid quarters. By shifting to trimester annual planning, your firm can build a cycle of growth, reflection, and celebration that keeps momentum strong all year.

Instead of pushing non-stop, you create intentional rhythms of energy and recovery. Leading with clarity, consistency, and a stronger culture.