How to Plan a Birthday Party

Disclosure: Gathr is ours. The advice works with any app, or with pen and paper.

• Budget and headcount first.
• Invite 3–4 weeks ahead, with an RSVP date.
• Plan food for yeses, not invites.

The countdown

• 4 weeks: budget, guest list, date, place.
• 3 weeks: send invitations with an RSVP date.
• 2 weeks: order the cake, plan food and drinks, remind the quiet ones.
• 1 week: final headcount, shopping list, playlist.
• The day before: set up, charge the speaker, ice.

At home on a budget

A potluck, one big dish plus snacks, a DIY dessert table, and a clear end time. Spend on one thing people will remember — a cake, a game, a great playlist.

For kids

Keep it short (two hours), plan two or three activities, and ask parents about allergies on the RSVP.

How to do it with Gathr

1. Tell Gathr what you’re celebrating. Names, date, place and budget — then pick one of 12 themes.
2. Invite with a link. A card in your party’s colours by text, WhatsApp or email; guests RSVP in any browser, with plus-ones and dietary needs.
3. Follow the checklist. A starter list for your kind of event, with due dates counted back from the day.
4. Keep the budget. What’s left, what each guest costs, and who owes whom.

Gathr is free, with no ads and no charges to you or your guests.

Common questions

How far in advance should I send birthday invitations?

Three to four weeks, with an RSVP date a week before the party.

How do I plan a birthday party on a budget?

Host at home, make it a potluck or one big dish, and spend on one memorable thing.

What should a birthday invitation include?

Who, when, where, what to bring, and how and when to RSVP.

Is there a free party planner app?

Gathr is free — guests, RSVPs, checklist and budget in one app.

Published 30 September 2026 · No affiliate links