25 AI wedding planning prompts, stage by stage, and how to ask them

“How do I plan a wedding?” gets you the same twenty-step list you’ve seen on every site. “We’re marrying on 12 June 2027 in York, 90 guests, and we haven’t given notice yet: what should we do this month?” gets you three things to do before the month is out. The difference is three details, and the order you ask in.

That’s also what couples use AI for most. In the US, those who used it for their wedding (36% of couples married in 2025, according to The Knot) mostly asked early questions and drafted messages, then checked the details elsewhere. The twenty-five questions below come in the order a wedding throws them at you.

How do you word a question to an AI?

• Give your case: the date, the guest count, where you’re marrying. The budget too, if it’s set.
• Say what you want back: a number, a five-point list, a three-line message.
• For a rule, ask for the source. “With the GOV.UK page” is enough.
• One question at a time. Four questions in one message get four half-answers.
• Check the numbers before you send anything to anyone.

The start: date, venue, budget

• 1. “We have £20,000 for 100 guests outside London: is that realistic, and which costs will be biggest?”
• 2. “We can’t decide between June and September 2027: what changes for price and for guests?”
• 3. “Where can we legally have a civil ceremony if we want it in a barn in North Yorkshire?”
• 4. “What should we ask on our first venue visit?”
• 5. “We need to cut from 140 guests to 100: how do we decide who stays?”

The third has a precise answer in England and Wales: a civil ceremony takes place at a register office or at a venue approved by the local council, so the barn needs to be on the approved list, or the legal part happens elsewhere. Ask the venue for its approval before you pay a deposit. For the fifth, defining your guest list gives criteria no AI can make up for you, because they depend on your family.

The paperwork: notice, documents, witnesses

• 6. “What do we need to give notice of marriage, each of us?”
• 7. “How far ahead do we have to give notice, and how early can we?”
• 8. “How many witnesses do we need, and who can be one?”
• 9. “Do we get time off work to get married?”
• 10. “We live in different towns: do we give notice together?”

This is where a general AI goes wrong most often, because the rules change at every border. The answers to expect in England and Wales: you each bring a valid passport or UK birth certificate, proof of your home address and the details of your venue. You give notice at least 29 days before the ceremony, and the ceremony must take place within 12 months of it, after living in the registration district for the past seven days. You need at least two witnesses. If you live in different registration districts, you give notice separately, each at your own register office.

For the ninth, there’s no legal right to wedding leave in the UK: most couples use annual leave, and your contract or staff handbook may give a day or two more. Ask your employer early in the year, before everyone books their summer.

The guests: replies, reminders, seating

• 11. “Who hasn’t replied yet?”
• 12. “Write a short, friendly reminder for the households who haven’t replied.”
• 13. “How many adults and children have said yes?”
• 14. “Which dietary needs do we have to pass on to the caterer?”
• 15. “How do we seat two sides of the family who don’t speak any more?”

The first four need your numbers. A general AI can answer if you paste your RSVP list, and again after every new reply. Weddy reads it: “3 households out of 24: the Faircloughs, the Ashworths and the Drummonds. Shall I draft a short, friendly reminder?” He writes the message, and you send it. The timing of reminders is in the wedding RSVP reminder guide, and the fifteenth has a few answers in the wedding seating plan.

The last month: schedule, suppliers, nerves

• 16. “What’s running late in our planning timeline?”
• 17. “How much is left to pay before the wedding, and to whom?”
• 18. “How many bottles of fizz for the drinks reception?”
• 19. “Write a note to the caterer confirming numbers and serving time.”
• 20. “We’re not sleeping three weeks before the wedding. Is that normal?”

The eighteenth has a simple method: two or three glasses per adult at the reception, one with dessert, six or seven glasses to a bottle. For 14 adults, 8 bottles, 10 if the three missing households come. That’s Weddy’s answer from the page, and the wedding drinks calculator gives the same if you’d rather count yourself.

The twentieth deserves a real answer, not a list of wellness tips. Weddy answers with tact, and if your question says things are really bad, he gives Samaritans’ number, 116 123, free day and night, straight away, and that conversation isn’t kept. Managing wedding stress goes further.

After the party: thank-yous, your name, certificates

• 21. “Write a thank-you note for our guests in two versions: one for close family, one more formal.”
• 22. “I’m changing my surname: who do I tell first?”
• 23. “How long do we have to send thank-you cards?”
• 24. “How do we get extra copies of our marriage certificate?”
• 25. “What should we do with leftover wine and the table plan cards?”

Weddy stays until a month after the wedding, long enough for thank-yous and the first round of paperwork. For your name, the passport office, your bank and your employer each have their own steps: he’ll give you the order, and for certificates, the register office where you married.

Which questions shouldn’t you leave to an AI?

Some answers don’t belong to an AI, however well informed. The notice appointment and the ceremony date belong to your register office. A prenuptial agreement belongs to a solicitor: an AI can explain what one is, it doesn’t know your finances. A dispute over a deposit goes to the supplier first, then to an advice service. Weddy knows this and tells you who to call rather than inventing an answer. What a general AI does well, and where it slips, is in AI wedding planner: what ChatGPT doesn’t know about your wedding.