ezPlatter How early you need to order catering depends almost entirely on event size, format, and how much competition there is for that specific date. A Tuesday office lunch and a Saturday wedding in June are not competing for the same slots on a restaurant's calendar at all, so they need very different planning windows.
Small, routine orders: 24 to 72 hours
Fast food catering, small team lunches, and casual gatherings under 20 people usually only need a day or two of notice. Most fast food chains specifically ask for 24 hours minimum, and many individual locations can accommodate less if you call ahead and explain what you need. This is the fastest-moving category and rarely requires advance planning beyond a quick phone call.
Mid-size events: 1 to 2 weeks
Birthday parties, department lunches, and lunch-and-learns in the 20 to 75 person range are safest booked 7 to 14 days out. This window gives you enough time to finalize a real headcount, collect any dietary requests from attendees, and confirm the order without rushing the restaurant or caterer at the last minute.
Large or formal events: 4 to 8 weeks
Weddings, corporate galas, and anything with more than 100 guests should be locked in at least a month out, and ideally 6 to 8 weeks ahead during wedding season or around the holidays when demand is highest. Final headcount is typically due 7 to 14 days before the event even when the initial booking happened months earlier, so plan for two separate touchpoints: the booking itself, and a final headcount confirmation closer to the date.
Holidays need the most lead time of all
Thanksgiving, Christmas, New Year's Eve, and other major holidays cluster demand into the same handful of dates across an entire region. Caterers and even fast food catering slots can book up weeks in advance during these windows. If your event lands near a major holiday, add 2 to 4 extra weeks to whatever lead time you would normally plan for that size of event.
A simple planning calendar
- Today: confirm your event date and a rough headcount, even if some details are still moving.
- Small event (under 20): place the order 1 to 3 days before the event.
- Mid-size event (20 to 75): place the order 1 to 2 weeks before, then confirm final headcount 2 to 3 days out.
- Large event (75 plus) or holiday timing: book the caterer 4 to 8 weeks ahead, then lock final headcount 7 to 14 days before the event.
What happens if you book late anyway
If you are past the ideal window, call anyway rather than assuming it is too late. Restaurants and caterers sometimes have last-minute openings from cancellations, and fast food catering in particular is flexible enough that even a mid-size order can sometimes be accommodated with less notice than the guidelines above suggest, especially on a weekday. Check current restaurants and ask directly what the earliest available slot is rather than ruling it out on your own.
A simple rule of thumb
As soon as your date and rough headcount are confirmed, that is your cue to place the order, even if some details like the exact menu or final dietary list are still moving. You can usually adjust quantities and specific menu items closer to the date. What is much harder to fix last minute is a fully booked delivery slot or a caterer who is no longer available for your date. Once your order is booked, our guide on how much food to order covers getting the quantity right.
Quick answers
Can I change my order after booking? Most restaurants and caterers allow changes to quantity and menu items up until a cutoff, usually 24 to 72 hours before the event depending on order size. Ask about this cutoff when you book.
Does ordering early lock in the price? Usually yes for fast food catering. For traditional caterers, ask specifically, since some adjust pricing seasonally between booking and the event date.
Step by step: working backward from your event date
Start with your event date, then identify which size category it falls into: small, mid-size, or large. Subtract the recommended lead time for that category to find your target booking date. Mark a second date, closer to the event, for finalizing headcount. Treat both dates as real deadlines on your own calendar, not just loose guidelines.
A worked example: planning a 50-person event for six weeks out
Say your event is 6 weeks away with an expected 50 guests. That falls into the large event category, so book the caterer now rather than waiting. Set a reminder for 10 days before the event to finalize the exact headcount, since that is within the typical 7 to 14 day window caterers ask for a final number. This two-step approach avoids the common mistake of booking early but then forgetting to follow up with final details until the last minute.
What to do if your date falls on a major local event
Local events like a college graduation weekend, a major sports tournament, or a citywide festival can strain caterer availability the same way national holidays do, even though they are not on a typical calendar. If your event date coincides with something drawing a lot of local demand, treat it with the same extended lead time you would use for a major holiday.