Should you hire or buy a dinner suit or evening gown?

Buy if you expect several formal events a year and can have it tailored; hire if it is once or twice. Fit decides more than cost.

4 minute readUpdated 2026-09-30

Buy if you expect to wear formal dress several times a year and have it tailored to fit you. Hire if you only go to one or two formal events. The difference is fit: a rented suit in standard sizes never fits as well as one you buy and tailor, and a tailored piece works for you year after year.

Fit matters more than price

You probably already know this about clothes, but formal wear makes it obvious. A dinner suit or evening gown that fits your body well looks expensive and composed, even if it is not. One that is too loose, too tight, too short or too long looks rushed and uncomfortable. A suit you buy and tailor once fits you every time you wear it.

When you are as a generous member, your date is noticing. A well-fitting jacket or dress says you take the evening seriously. Poor fit says the opposite. The person across from you can tell the difference between someone who fits into clothes and someone who owns clothes that fit them.

Rented formal wear comes in standard sizes, and alterations at a rental shop cost extra and take time. If you are hiring suit number four for an event three weeks from now, you might be paying for rush alterations or settling for something that does not quite fit.

When to buy

Buy if you go to formal events at least twice a year. The cost of tailoring one suit or gown is usually less than renting twice, and after that, every wear is free. A quality dinner jacket or evening dress lasts for years with basic care.

Budget for the whole package. A decent suit or dress can cost £200 to £800, and tailoring can add £50 to £150 more depending on what needs adjusting. But after one or two events, the arithmetic is done: you own something that fits and works. A rental is £70 to £150 per event, and that cost never goes away.

Start with one suit or one gown that works for black tie and formal dinners, since that is the most common dress code you will encounter. Black tie is a black dinner jacket with silk lapels for men; for women, a knee-length cocktail dress or a full-length gown ¹. Both are easier to wear and move in than white tie, and you can dress them down or up depending on the venue.

Tailoring is where the value is. Jacket sleeves, trouser length, dress hem and bodice fit are all things an experienced tailor can fix. A suit that costs half the price of another can become the better piece once it fits you properly. Allow two to three weeks for tailoring; a good tailor is usually booked and you do not want to rush the work.

When to hire

Hire if you go to formal events fewer than twice a year. Rental makes sense when you have a single event or a trip with one formal night. Hiring also makes sense for white tie, which is the rarest dress code: a black tailcoat with silk lapels and braided trousers for men, a full-length evening gown for women ¹. Most people buy one dinner suit and one evening gown, but white tie once a year or less is not worth owning.

When you hire, try on the piece well before the event. Do not wait until the day before. Rental shops are often flexible about alterations, and asking early usually costs nothing. If something does not fit, you have time to exchange it.

Storage keeps it ready

A suit or gown that lives in your cupboard needs to be ready when you are. Storing it properly means you do not spend the day before an event dealing with creases, stains or moth damage. Formal wear is a small investment in time on behalf of your future self.

Hang on a wooden hanger: plastic creases shoulders and metal can rust details
Use a breathable garment bag: plastic holds moisture and causes mildew; linen or cotton breathes
Store in a cool, dark cupboard away from direct light, which fades colour and fabric over years
Check for moths before sealing a bag: cedar blocks, lavender sachets or pheromone traps help keep them out
Spot-clean spills as they happen; have the piece dry-cleaned only between seasons, not before each wear

Between wears, hang the suit or dress in the bathroom while you shower: steam releases small creases and odours. For bigger wrinkles, use a hand steamer; most cost £20 to £40 and are worth owning if you wear formal clothes more than once or twice a year. Do not iron: ironing scorches silk and crushes texture.

Talk fit with your tailor

I would like this to fit me perfectly, not your standard size. Can we talk about what adjustments would help it move with me, not against me?

A good tailor listens. They will ask you how you plan to sit, stand and move in the piece, and adjust accordingly. Formal wear should disappear on your body: you should not be thinking about how your jacket hangs or whether your dress is riding up.

One outfit for many events

A well-fitted dinner suit works for a corporate gala, a wedding, an awards night and a date when the venue is more formal than usual. An evening gown does the same. If you are planning to be a thoughtful plus-one or host an evening, one formal outfit that fits you well is the foundation. After that, it is about what you pair it with and how you carry yourself.