What should I do 12 months before my wedding?

At the 12 month mark, your main job is to lay the foundations. Agree on a budget with your partner and anyone contributing, and decide roughly how many guests you can invite. Then pick a date and book your venue, whether that is a register office, approved venue, or religious building. If you are marrying in a church, speak to the vicar or priest about banns or a licence, as these need time. Also check whether your ceremony will be legally binding on its own, especially if you are considering a humanist ceremony in England or Wales, where you will need a separate civil ceremony. Once the venue is booked, start researching and booking your photographer, caterer, and any other suppliers you know you want. Send save the dates to your guests, especially if many will travel. You do not need to give notice yet, but make a note of the 28 day rule and plan to do it about four months before. Finally, set up a simple checklist or spreadsheet, and start a folder for contracts and ideas. This early groundwork makes the rest of the year calmer.