🇮🇪 Ireland · 🇬🇧 United Kingdom
*By Priya Mehta, The Global Office
In London's financial district, there remains a genuine, half-serious rule that black shoes belong in the City and brown shoes belong in the country — wearing the wrong pair to the wrong postcode was, within living memory, treated as a real faux pas. A ninety-minute flight away in Dublin, most professional emails open with a cheerful "Hi" rather than "Dear," and hierarchies exist mostly on paper. Both countries speak English, share a currency history, and drink an alarming amount of tea. Neither dresses like the other expects.
| ✅ Do | ❌ Don't |
|---|---|
| Default to smart casual for most modern workplaces — full suits are increasingly reserved for finance, law, and client meetings | Assume Irish informality means no hierarchy at all; it exists, it's just rarely performed through clothing |
| Move to first names quickly — Irish workplaces are personable, and titles fall away fast even with senior colleagues | Open emails with "Dear [Surname]"; a casual "Hi" is the norm even in fairly formal exchanges |
| Expect real investment in relationship-building before business moves forward, especially outside Dublin | Mistake informality for lack of seriousness; deadlines and standards are still real, just delivered more gently |
| Check your specific industry's norms — tech and creative firms are notably more relaxed than finance or legal roles | Wear the same outfit you would for a UK client meeting without checking; Irish clients may find it needlessly stiff |
| ✅ Do | ❌ Don't |
|---|---|
| Expect real regional and sector variation — London finance remains genuinely formal while Northern Ireland and the North West lean far more casual | Assume "the UK" has one dress code; job postings mentioning casual dress vary enormously by region and industry |
| Default sharp for finance, law, or any client-facing City role — full suits are still very much alive there | Wear brown shoes with a business suit in traditional City settings without checking; the old rule still has defenders |
| Ask directly if you're unsure — 74% of UK office workers report their employer has some form of dress code | Assume dress code enforcement is gender-neutral; more than twice as many women as men report having been "dress coded" at work |
| Lean casual in tech and creative sectors — the influence of tech culture has pushed casual dress into industries that once resisted it | Show up underdressed to a genuinely traditional employer on the assumption "the UK has gone casual"; plenty of firms haven't |
Irish workplace culture treats dress code as one small piece of a broader informality that runs through how people actually work together. Hofstede Insights scores Ireland relatively low on Power Distance and high on Individualism (70), a combination that shows up as accessible managers, open communication across levels, and hierarchies that exist without being constantly performed. Business attire guides describe the norm as "smart but not overly formal" — full suits work in traditional sectors like law, finance, and client-facing government roles, but tech, creative, and increasingly general corporate environments have settled into smart casual as the default rather than the exception.
What's distinct about Ireland isn't the absence of formality so much as where the formality gets spent: relationships and family are treated as being on comparable footing with the business itself, according to Irish business etiquette guides, and that investment in personal rapport — not clothing — is where Irish professional culture asks newcomers to actually perform seriousness.
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The UK's dress code story is one of real, ongoing formality holding on in specific pockets while collapsing everywhere else. Recent workforce data shows 74% of UK office workers report their employer maintains some form of dress code, and job-posting analysis found London has the lowest share of postings mentioning casual dress of any UK region, at just 2.3% — reflecting the concentration of financial services where black-suit formality remains close to mandatory. Regions like Northern Ireland and the North West sit at the opposite end, with far higher rates of explicitly casual job listings.
The legal profession preserves the UK's most theatrical formality: solicitors in magistrates' courts must dress neatly, but barristers appearing in county court and above are still required to wear wigs and robes, a genuinely unchanged custom in an otherwise rapidly casualising economy. The old "black shoes in the City, brown shoes in the country" rule has softened considerably in the business-casual era but hasn't fully disappeared in the most traditional finance and legal circles. Notably, dress code enforcement isn't experienced equally: recent surveys found more than twice as many women as men report having been formally corrected on their workplace attire.
Both countries are shedding formality, but at different speeds and in different rooms. Ireland's informality runs broad and shallow — smart casual has become the default across most sectors, but nobody mistakes it for the absence of real professional standards. The UK's informality runs narrow and deep — genuinely casual in tech and much of the regional economy, but with London finance and the legal profession holding onto rules (wigs, robes, black-shoe orthodoxy) that would look almost costume-like anywhere else in Europe.
The practical tell: in Ireland, dress code rarely signals where the real seriousness lives — that's found in relationship-building instead. In the UK, dress code still reliably signals exactly which room you're in, sometimes down to the postcode.
Blind — A commenter answering a thread on banking-team dress codes described the split plainly: business casual day to day, but the instant a client meeting appears on the calendar, it's a full suit and tie, no exceptions, even at banks that have relaxed dress code everywhere else in the building.
Quora — Responding to whether "black shoes in the City, brown shoes in the country" still holds in the business-casual era, one commenter said the rule has faded for most people but is still quietly enforced by older partners at the most traditional City law and finance firms, who will notice — and mention it — even if company policy no longer says anything about it.
Quora — Someone answering a question about court dress in the UK explained that wigs and robes remain mandatory for barristers in county court and above, while solicitors in magistrates' courts only need to dress neatly — a formal-informal split within the same legal system that surprises almost everyone encountering it for the first time.
Quora — Asked why banking and finance dress codes remain so specific despite having no real connection to work quality, one respondent argued the clothing functions as a trust signal to clients moving large sums of money, not a productivity requirement — which is why the rules loosen dramatically the moment a role stops being client-facing.
If you're moving to Ireland, relax the wardrobe and invest the saved effort into actually building relationships — that's where Irish professional seriousness is genuinely measured. If you're moving to the UK, don't generalize from one office or one city; ask specifically about your sector and, if there's any client contact at all, dress for the room you haven't seen yet. The line I'd give a friend: Ireland will forgive your shoes if it likes you; the UK, in certain postcodes, will still judge the shoes first.
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Photo by Ketut Subiyanto via Pexels
Priya Mehta
Staff writer covering financial markets and corporate strategy. Has strong opinions about spreadsheets.