Getting a black tie wedding guest invitation is exciting and then slightly stressful when you open your wardrobe. Black tie is one of the most formal dress codes, which means the expectations are high. But it also means you have a brilliant excuse to wear something genuinely special.
Here's everything you need to know about dressing for a black tie wedding as a guest - and how to do it without spending a fortune.
What does black tie mean for a wedding guest?
Black tie is the second most formal dress code in existence (white tie is the most formal, and rarely used). For women, black tie means a floor-length gown, a sophisticated midi dress, or a formal jumpsuit. It does not mean a smart casual dress or a knee-length party dress - those belong at less formal occasions.
The key distinction between black tie and other smart dress codes is length and formality. If the invitation says black tie, the expectation is that you will dress to the same level of formality as the wedding party. Think elegant fabrics like satin, velvet, chiffon and lace, and silhouettes that feel genuinely occasion-worthy.
What to actually wear to a black tie wedding
Floor-length gowns
A floor-length gown is the most classic and safe choice for a black tie wedding. You can't be overdressed in a floor-length gown at black tie. Choose structured fabrics over casual ones - satin, taffeta, chiffon or lace all work well. Avoid anything too body-con unless it's truly formal in feel, and steer away from anything that reads more like a going-out dress than a formal occasion gown.
Elegant midi dresses
Midi dresses can absolutely work at black tie weddings, as long as the fabric and silhouette feel formal enough. A structured satin midi, a velvet dress with long sleeves, or a beaded midi will all pass. The key is the fabric a midi dress in jersey or chiffon may not feel formal enough depending on the venue.
Formal jumpsuits
Jumpsuits are fully acceptable at black tie events now. A wide-leg tailored jumpsuit in a luxe fabric satin, velvet or crepe is a completely valid choice. Make sure the fit is impeccable and the fabric reads as evening wear rather than workwear.
Colours for black tie wedding guests
Despite the name, you absolutely do not have to wear black. Any rich, deep colour - navy, emerald, burgundy, deep purple, champagne - works beautifully at a formal wedding. The only colours most guests traditionally avoid are pure white, ivory and cream, which are reserved for the bride.
Metallics, gold, silver, bronze are a brilliant choice for evening black tie weddings. They photograph well and read as formally as any other evening colour.
What not to wear to a black tie wedding
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Pure white, ivory or cream - reserved for the bride
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Short cocktail dresses - these belong at smart casual or cocktail weddings
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Overly casual fabrics like jersey, denim or cotton
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Anything you'd wear to a Christmas party or a nightclub
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Flat shoes if you want to feel the part - though this is personal preference
How to hire a black tie wedding guest dress
Buying a floor-length gown for a single occasion is one of fashion's least sensible expenses. Hiring a dress means you can wear something genuinely beautiful and expensive-looking without the cost - and without a formal gown taking up space in your wardrobe indefinitely.
At Hirestreet, black tie wedding guest dresses are available from £18, with free delivery and free returns. Delivery is timed so the dress arrives before your event and you return it after - the whole process takes no more than a few minutes to arrange.
Browse our full collection of black tie wedding guest dresses at hirestreetuk.com/collections/black-tie.
What shoes and accessories work with a black tie gown?
For a floor-length gown, heels are the traditional choice — stilettos, block heels or kitten heels all work. If you need to be on your feet all day, a low block heel or a very elegant flat sandal can work with the right dress. Avoid trainers and casual sandals.
For accessories, keep it simple. One statement piece — a clutch bag, a necklace, or earrings — is usually enough. A full-length gown is already doing a lot of the work.
Frequently asked questions
Can I wear a midi dress to a black tie wedding?
Yes, if the fabric and silhouette feel formal. A structured satin or velvet midi dress works at black tie. A floaty chiffon midi or a bodycon dress may not feel formal enough for the occasion.
Do I have to wear black to a black tie wedding?
No — black tie refers to the formality level, not the colour. Any formal evening colour works beautifully, including navy, emerald, burgundy, gold and silver.
Is it okay to hire a dress for a black tie wedding?
Absolutely. Many guests now hire formal wear for one-off occasions. It's more sustainable than buying something you'll wear once, and the quality of available hire dresses has improved enormously.