12 to 9 months out: the foundations
- Set a date and book the ceremony venue and the reception. Summer Saturdays go a year ahead in most places.
- Agree an overall budget and how it splits by category — venue and catering, outfits, photography, music.
- Draft a guest list: it determines which venues are even possible.
- Check the legal requirements early: notice periods run from a few weeks to several months depending on the country, and a licence can expire before the ceremony if it is issued too soon (see civil marriage, country by country).
6 to 4 months out: the suppliers
- Book the caterer, photographer or videographer and the music.
- Order invitations and send them three to four months ahead — earlier for a destination wedding.
- Choose outfits, allowing time for fittings and alterations.
- Complete the civil formalities: give notice, lodge the NOIM, or apply for the licence, depending on the country.
3 to 1 months out: the detail
- Finalise the seating plan and menus, accounting for dietary requirements and allergies.
- Sort decoration: flowers, table settings, anything for the ceremony space.
- Confirm timings, deliveries and access with every supplier in writing.
- Arrange the rings, readings and any music licences the venue requires.
Controlling the budget
Venue and catering typically account for around half the total. The levers that actually work: a less-demanded season or a weekday, inviting fewer people to the sit-down meal than to the reception, seasonal rather than imported flowers, and being wary of the "wedding premium" — the same service quoted higher once the word wedding is used. Many couples now use an online gift fund instead of, or alongside, a traditional list.
Children and contingencies
A dedicated space or childcare makes the evening easier for everyone. A wet-weather plan for an outdoor ceremony, and a small emergency kit — safety pins, sewing kit, stain remover, painkillers, phone charger — prevent most of the small disasters.
The most useful single decision
Appoint one person — a witness, a friend, or a paid coordinator — as the contact point for suppliers on the day. It is what allows the couple to actually attend their own wedding rather than run it.