As of 13 August 2026, AI can fill in your UK marriage certificate application.

What to actually do

1. Hand it to a person

   The route this page recommends

   A person who owns the outcome does this end to end, worth it when the failure is dear.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface, no skill needed, and roughly 15 minutes until you can act on the result.

   How to actually do it

   1. Open the relevant marriage certificate or registration guidance on GOV.UK and download or open the exact application form.
   2. Check whether the process is ordering a certificate, giving notice of marriage, registering a marriage or another service, and do not continue if the form's purpose is unclear.
   3. Gather the names, dates, places, reference details and supporting documents that the form itself requests, keeping unnecessary identity numbers out of the chat.
   4. Paste the form or its questions, the GOV.UK link and only the required details into the prompt.
   5. Ask the AI to draft an answer for every field and to mark any field that needs confirmation from the register office or another official body.
   6. Compare every drafted answer with your original documents and the current GOV.UK instructions, correcting spelling, dates, names and reference numbers yourself.
   7. Enter the checked answers into the official application and contact the relevant register office or General Register Office before submitting any unclear or disputed detail.

   Prompt

   I need help completing a UK marriage certificate application. First identify what type of application this is from the form and the official GOV.UK guidance I provide, and say if the form is actually for ordering a certificate, giving notice, or another process. Then work through every field in order. Use only the information in the form, the official guidance and the personal details I provide. Do not guess, fill gaps, choose an option for me where the wording is unclear, or invent any dates, names, reference numbers or addresses. For each field, give the proposed answer and a short reason tied to the form or guidance. Mark anything I must confirm with the relevant register office, General Register Office or other official body. Do not ask me to paste unnecessary sensitive information, and redact document numbers unless the form specifically requires them. Do not submit anything. At the end, produce a final checklist of every answer and document I must verify before using the official application route.
   
   Official form or GOV.UK guidance:
   [PASTE THE FORM OR OFFICIAL LINK HERE]
   
   My details:
   [PASTE ONLY THE DETAILS NEEDED FOR THE FORM HERE]

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.