Jury Service: What to Wear to Court in the UK and US

The short version: there is no official jury dress code in the UK or US, but courts run on first impressions, and smart-casual that would pass for a client meeting is the safe bet in both countries. Avoid anything with slogans, anything that shows a lot of skin, and anything you'd wear to the gym or the pub, and you will fit in fine. The uncomfortable bit nobody says out loud: what you wear can quietly shape how much a judge or usher trusts you to behave, which affects small things like whether you get picked for a longer trial.

Why there isn't a written rule, and why that makes it harder

You'd think a system that sends out a legal summons would also send a dress code. It doesn't. Not HM Courts and Tribunals Service in the UK, not any US federal or state court I've looked into. What you get instead is a line buried in the jury summons letter along the lines of "dress appropriately for court" or "business casual is recommended." That vagueness is the problem. It leaves you guessing, and guessing wrong on day one in front of a room of strangers and a judge is not a great start.

Think of it like turning up to a job interview where the recruiter says "wear what feels right." Nobody wants that freedom. They want the answer.

What UK courts expect

If you've been summoned for jury service in England or Wales, the official guidance from the Crown Court says smart, comfortable clothing. No fancy dress, no sportswear, no flip-flops. That's the whole brief from the court itself.

In practice, here's what that means on the ground:

• Men: smart trousers (not jeans, though dark, unripped jeans usually pass), a collared shirt, and a jumper or blazer if you have one. Tie is optional and most men skip it.
• Women: smart trousers or a skirt below the knee, a blouse or smart top, flat or low-heeled shoes because you'll be standing and walking more than you expect.
• Everyone: no baseball caps, no sunglasses indoors, no clothing with slogans or branding, nothing with visible political or football club imagery.
• Comfort matters more than people admit. Jury selection alone can involve sitting in a waiting room for two or three hours before you're even called into a courtroom, so shoes that hurt by hour two are a genuine mistake.

Scotland and Northern Ireland follow the same unwritten smart-casual standard, run through their own court services, though the exact wording in the summons letter differs slightly.

What US courts expect

US courts are more varied because jury service is run at state level as well as federal, and some individual courthouses post their own notices. But the pattern across federal district courts and most state courts is consistent: business casual, no shorts, no tank tops, no flip-flops, no visible undergarments, no hats indoors.

A few US-specific details worth knowing:

• Some state courts, particularly in the South and in more conservative districts, explicitly ban jeans of any kind, even smart dark ones. Check the summons letter wording carefully rather than assuming.
• Courthouses in warmer states like Florida, Texas and Arizona run air conditioning hard, so a light jacket or cardigan is worth bringing even in August.
• Federal courthouses tend to be stricter than county or municipal courts. If your summons is federal, lean more formal than you think you need to.
• Security screening at US courthouses is airport-style in most districts, so belts with large metal buckles and heavy jewellery slow you down at the door.

A worked example: the trial that runs longer than expected

Say you're summoned for jury service in Manchester, and you pack for a single day because that's what you assume it'll be. You turn up in dark jeans, trainers and a hoodie because the letter just said "smart casual" and you read that as relaxed. You're not picked for the first case, but you are picked for a second trial that runs eleven days. Now you're wearing the same two outfits on rotation because you didn't plan for more than a day, and you're self-conscious every morning walking past the same ushers in the same clothes.

The smarter approach, and this applies whether you're in Leeds Crown Court or a federal courthouse in Chicago, is to pack for a week even if your letter says one day. Bring three or four interchangeable smart-casual outfits: dark trousers, two or three tops, a blazer or cardigan that works over all of them, and one pair of comfortable shoes you can wear five days running. That's the step-by-step version: plan clothes like you're going on a short work trip, not a single meeting, because jury trials routinely overrun their estimated length.

The part most guides skip

Here's what doesn't get said enough: your clothes are being read by the people deciding whether you look like a reliable juror, and that includes the barristers doing jury selection in both countries. In the UK this is subtle and limited because challenges to individual jurors are rare. In the US, where lawyers get far more say during voir dire, how you present yourself can factor into whether you're kept on the panel or struck. A scruffy appearance can read as "doesn't take this seriously." An overly sharp, expensive-looking outfit can read as "won't relate to an average defendant." Neither extreme helps you. The safest position is deliberately unremarkable: clean, tidy, forgettable in a good way. That's not fairness, it's human psychology, and pretending it doesn't happen doesn't help anyone walking in on day one.

This matters beyond the courtroom too. If you run your own business and have ever had to show up somewhere official unprepared, you'll know the feeling of being judged on surface details before anyone's heard what you have to say. It's the same instinct that makes a potential client sum you up in the first ten seconds of a video call. Worth remembering next time you're deciding what "smart casual" means for any situation where strangers are forming an opinion of you fast.

What to avoid in both countries

• Anything with text, logos or slogans, political, sporting or otherwise. Courts want you reading as neutral.
• Strong perfume or aftershave. Jury rooms are small and shared for hours at a time.
• Shorts, flip-flops, crop tops, vests, and anything beach-adjacent, even in a UK heatwave or a US summer.
• Sunglasses or hats worn indoors, which some courthouses will ask you to remove at security anyway.
• Clothing that's difficult to sit in for long stretches. You will be sitting more than standing, often on hard benches.

What to pack alongside your outfit

• Photo ID, because most courthouses in both countries ask for it at security even though your summons letter is your actual authorisation.
• A jumper or cardigan regardless of season. Courtrooms run cold.
• A watch, since phones often have to be switched off or handed in during proceedings.
• Cash or a card for the courthouse canteen, which in UK Crown Courts is often basic and in some US courthouses doesn't exist at all, meaning you'll need to bring lunch.

If you're self-employed or run a small business and jury service lands in the middle of a busy quarter, it's worth sorting cover and client communication before your start date rather than during it. That's a separate headache from what to wear, but the two tend to land on your desk the same week, and planning for both at once saves you a scramble.

Frequently asked questions

Can you wear jeans to jury service in the UK?

Generally yes, dark, unripped jeans without obvious branding are accepted at most Crown Courts in England and Wales, but check your summons letter because some courts prefer trousers instead.

Can you wear jeans to jury service in the US?

It depends on the court. Many county and municipal courts allow smart dark jeans, but federal courthouses and some Southern state courts explicitly ask jurors to avoid denim altogether, so check the specific notice attached to your summons.

Do you have to dress formally for jury duty?

No, full formal wear like a suit and tie isn't required in either country, but turning up in gym kit, beachwear or anything with slogans is likely to get you a quiet word from a court usher before you've even reached the jury room.

What should you bring if a trial runs longer than expected?

Pack as if you're attending for a week rather than a single day: three or four interchangeable smart-casual outfits, one pair of comfortable shoes, and a jumper for cold courtrooms, since jury trials in both the UK and US commonly overrun their original estimated length.