BUZZ ACCOUNTINGUK tax help in Ireland
Two tax systems, one land border, and Buzz on both sides of it — our Northern Ireland office lives with UK/Irish cross-border tax every day.
Ireland is the one country on this list where Buzz is genuinely local: Buzz Accounting operates in Northern Ireland, and UK/Irish cross-border questions — workers, landlords, companies, pensions — are daily work rather than an exotic specialism.
The usual cases
- Moved to Dublin, kept a UK property — Irish residents are taxed on worldwide income (with a remittance basis for non-domiciled foreign income in some cases); the UK taxes the rent first, Ireland credits it. NRL returns from us, Irish return by your Irish accountant — or ask us; we work with both systems.
- Cross-border workers — living in one jurisdiction, employed in the other: payroll, residence and relief claims that most accountants on either side see rarely and we see weekly.
- Companies — a UK Ltd trading into Ireland, or directors living in the Republic running a UK company: corporate residence and PAYE positions need managing on both sides (how we handle it).
- Pensions and NI — UK State Pension uprating applies in Ireland (no freeze), which makes voluntary NI unambiguous good value for most movers.
Why this pair is different from every other on this site
Every other country page here describes coordinating with a foreign system at arm's length. Ireland is the one where the systems interlock daily — a land border, a Common Travel Area that settles residence and work rights but says nothing about tax, and tens of thousands of people whose employer, home and pension sit on different sides of it. Buzz's Northern Ireland office lives in this traffic: cross-border workers claiming transborder relief, directors resident in the Republic running UK companies, landlords on each side letting property on the other.
The recurring technical points: Irish residence (183 days, or 280 across two years) brings worldwide taxation with a remittance basis still available for non-domiciled foreign investment income — a rule the UK abolished but Ireland kept, and which cuts nicely for some British movers. PAYE must run on the correct side, and the fix for double-withholding is relief claims, not hope. The UK State Pension is uprated normally in Ireland — one of the few destinations on this site where the freeze never bites — which makes voluntary NI the cleanest yes we ever give. And because both tax authorities share data across the border energetically, the cost of drift is discovery, not just interest.
Three situations we see from Ireland every month
Composite cases built from the situations we handle — if one of these is you, the fix is usually days of work, not months.
The Newry–Dundalk commute
Director living in the Republic, company in Newry. Payroll ran UK PAYE only; Irish residence made him Irish-taxable too. Fixed with the cross-border relief workings both sides — the NI office does this weekly.
The Dublin move that kept the Belfast house
Rented out on moving south: NRL scheme applies (it's a UK property, he's non-UK-resident now), Irish return credits the UK tax. Both returns handled inside the Buzz group.
Two pensions, no freeze
Ireland uprates the UK State Pension normally, so voluntary NI is unambiguous: six Class 2 back-years bought, £342/yr each, index-linked, alongside the Irish PRSI record.
Ireland × UK: the quick facts
| Question | Short answer |
|---|---|
| Local tax system | Worldwide for Irish residents; remittance basis for some non-domiciled income |
| UK personal allowance | Kept by British and Irish nationals |
| State Pension uprating | Uprated normally in Ireland |
| Watch for | Cross-border workers — payroll on the correct side |
| Buzz presence | Northern Ireland office — genuinely local to this border |
Tax years: Ireland uses the calendar year; the UK 6 April–5 April.
Asked from Ireland, constantly
I work in Belfast but live in Dublin — where do I pay tax?
Both systems touch you: UK PAYE on the employment, Irish residence taxes worldwide income with transborder relief typically eliminating the double charge. It has to be set up, not assumed.
Can Buzz handle both my UK and Irish filings?
The UK side fully; the Irish side through the group's NI operation and its Republic-facing work — one thread either way, no relay race between strangers.
Does the CTA change anything?
The Common Travel Area covers residence and work rights, not tax. The UK-Ireland treaty does the tax work.
What most Ireland clients have us do
Guides to the rules that catch expats out
The Statutory Residence Test, explained properly
Whether the UK taxes your worldwide income comes down to a mechanical test of days, ties and work.
The Non-resident Landlord Scheme: keeping all of your rent
Move abroad and your letting agent is legally required to send 20% of your rent to HMRC — unless you stop them with one form.
Voluntary National Insurance from abroad: £3.50 a week for a bigger State Pension
For £3.50 a week, most working expats can keep their UK State Pension growing while they're away.
Your country changes the answer.
The UK side is only half the story — what your new country taxes, credits and freezes decides the rest.