What should guests wear to a black tie wedding?

Black tie is a formal dress code, so aim for polished evening wear that respects the occasion. When in doubt, it is better to be slightly overdressed than underdressed.

For men, the traditional choice is a black or midnight blue dinner jacket with matching trousers, a white shirt, a black bow tie and black shoes. A waistcoat or cummerbund adds a classic touch. If you do not own a dinner jacket, a dark suit with a crisp shirt and a dark tie is usually acceptable, but check what the couple prefers. Avoid wearing white, which is traditionally reserved for the couple.

For women, a floor-length evening gown is the safest choice. A sophisticated midi or knee-length dress in a rich fabric can also work if it feels formal. Jewellery, a clutch and heeled shoes complete the look. If you are unsure, choose a darker colour or a more structured silhouette.

Think about the venue and weather. An outdoor garden wedding may need a wrap or sensible shoes, while a ballroom will suit fuller gowns. Do not wear jeans, trainers, shorts or casual summer dresses. If the invitation mentions a theme or colour palette, try to honour it without copying the bridal party.