When to Start Planning a Stag Do: The Ideal Timeline Calculator

Ask ten best men when they started planning and most will give you the same sheepish answer: later than they should have. The cost of leaving it late is not just stress — it is money and options, both of which drain away as the date approaches. This is the timeline that keeps you ahead of the curve, counted back from the weekend itself.

The single most important date: lock the weekend first

Before destinations, before activities, before anything, you settle on the date. Everything else is downstream of it, and the date is the one thing that gets exponentially harder to fix the longer you wait, because you are trying to align ten or fifteen adult diaries that are filling up by the week. Get a weekend agreed and defended early and you have done the hardest part of the entire job.

A note on timing relative to the wedding: the sweet spot is a few weeks to a couple of months before the big day — late enough to feel like a send-off, early enough that nobody is nursing an injury or a fragile liver down the aisle. Never the weekend immediately before.

4 to 6 months out: the foundation

This is when the serious work happens, and starting here rather than at three months is the difference between a relaxed plan and a scramble.

• Poll the group for the date. Use a simple poll, give two or three weekend options, and set a deadline for responses.
• Clear it with the groom’s diary (or his partner, discreetly, on a surprise).
• Announce the save-the-date. Get it in everyone’s calendar before they book a festival, a holiday or another stag.
• Sketch the budget. A realistic per-head range, so the invite that follows is honest.

3 to 4 months out: numbers and money

Now you turn interest into commitment.

• Send the formal invitation with the cost, the deposit and the deadline.
• Collect deposits. This is the gate. You book nothing significant until the money is real, because the alternative is fronting deposits for people who may never pay.

A high-visibility warning on deposit timing: the moment you start collecting money, you are holding other people’s cash and committing it to non-refundable bookings. Keep an itemised record of who has paid from day one, and never commit more to a venue than you have actually collected. Based on internal 2026 transaction data across thousands of group trips, the most painful losses come from best men who booked on promised money rather than received money, then could not recover deposits when guests dropped out. Book on cleared funds, not good intentions.

2 to 3 months out: book the big rocks

With real numbers and real money, you commit to the things that sell out or inflate fastest:

• Accommodation — the party house, the hotel block, the apartments. Group space in good locations goes early.
• Travel — flights especially, where prices climb relentlessly as seats fill. Even UK trains are far cheaper booked in advance.
• The headline activity — the karting, the brewery tour, the thing the weekend is built around.

These are the “big rocks.” Get them in the jar first; the sand fills in around them later.

1 month out: the detail

The structure is booked; now you make it good.

• Restaurant and bar tables for the group — essential once you are over eight, as we will come back to.
• The pub crawl route — mapped, with real venues, in a sensible order.
• Transfers — airport, station, between venues.
• The kitty target and how it will be run.
• The kit list — what every guest needs to bring, sent early enough for people to sort costumes or supplies.

1 week out: confirm, collect, brief

The final week is about certainty, not planning.

• Reconfirm every booking directly with each venue and provider. Do not assume; confirm.
• Send the final itinerary to the whole group so everyone knows the plan, the times and the meeting points.
• Collect the last of the money — the stragglers always need one final, firm nudge.
• Brief the group on the essentials: timings, dress, the one or two house rules, and the emergency contact.

Why a shared timeline beats a private one

Here is what undoes even a well-planned stag: the timeline lives in the best man’s head, and nobody else can see the cut-offs. The lad who “didn’t realise” deposits were due, the mate who books his flights separately and ends up on a different one, the group that misses the early-bird price because the deadline was never visible — these are coordination failures, not planning failures.

The fix is to make the timeline a shared object: one place where the dates, the deposit deadlines and the booking cut-offs are visible to everyone, counting down in public. Lock the date first, work backwards through the big rocks, and keep the whole group looking at the same clock. Start at four to six months and the weekend plans itself; start at three weeks and it plans you.