Group Room Block Attrition Calculator

Group attrition clauses protect hotels when pickup falls short — quantify group's exposure.

Contracted block nights

Attrition threshold %

Forecast pickup %

Group rate

Attrition liability %

Attrition liability

$7,740

At-risk rooms

Safe pickup threshold rooms

400

How the math works

Safe threshold = block × allowance %. Shortfall = safe − actual. Liability = shortfall × rate × liability %.

500 × 80% = 400 safe. 500 × 72% = 360 actual. Shortfall 40 × $215 × 90% = $7,740 liability.

How to Use

Enter contracted block nights.
Enter attrition threshold %.
Enter forecast pickup %.
Enter group rate.
Enter attrition liability %.
Read at-risk rooms and liability.

Frequently Asked Questions

Attrition threshold?

Typical: 80-85% pickup before penalty. Stricter: 90% (peak season, in-demand hotels). More lenient: 70-75% (off-season, large unknown group). Cumulative basis most common: total pickup vs total block. Peak-night basis: individual night pickup vs night block (hotel-favorable). Negotiable in contract — group manager goal: higher threshold + cumulative basis; hotel goal: lower + per-night.

Attrition liability %?

Hotel entitlement on shortfall rooms: 80-100% of contracted rate. Includes lost room revenue; may include F&B minimums pro-rated. Rate varies: peak-season hotels run 100% (no mitigation opportunity); off-season 70-80% (easier to resell). Convention hotels running 120%+ peak sometimes negotiate lower (70%) because demand so strong they'll resell anyway. Check contract specifics.

Group's mitigation options?

(1) Push pickup — email reminders, extended registration. (2) Transfer block nights (reduce peak, add shoulder). (3) Sublet block to another meeting planner. (4) Pay group rate on unsold; re-market as package. (5) Early termination with cure payment (30-60% of attrition exposure). Strong relationships help — hotels may waive partial attrition for returning customers.

Pickup forecasting?

Historical pickup benchmarks by group type: trade shows 75-85%, incentive trips 85-95%, board retreats 85-92%, weddings 80-92%, conferences 70-85%. Pickup accuracy to contracted block: 75-90% typical. Low pickup triggers ahead: registration tracking, hotel-group calls 60/30/14 days out. Pick up improving from day 60 onwards is normal; static or declining = escalation.