Tax year: 2026/27 | Published: 25 September 2026 | Last reviewed: September 2026 | Written by the Epiclectic Editorial Team | Rates section reviewed by Shamayun Chowdhury

Starting a Business in Northern Ireland: What’s Different (2026/27 Guide)

Two shops with identical floor space, one in Enniskillen and one in Derry, can get rates bills thousands of pounds apart. Same size, same trade, same year. Northern Ireland calculates business rates in a way that exists nowhere else in the UK, runs its own employment law, and sits in a trading position that is either an obstacle or an advantage depending on what you sell. Almost no start-up guide mentions any of it.

Quick answer

Starting a business in Northern Ireland follows the same UK rules for company registration, Corporation Tax, VAT and income tax. What differs is local: rates are Net Annual Value multiplied by a combined regional and district poundage that varies by council, Small Business Rate Relief is applied automatically, employment law is devolved and differs from Great Britain, and bringing goods in from GB has its own requirements.

Why trust this guide

Current NI figures. New poundages and a revaluation took effect in April 2026. Figures come from the Department of Finance, nibusinessinfo and Land & Property Services, checked in September 2026.
We checked the employment law point rather than assuming it. Most UK guides treat employment law as identical everywhere. In Northern Ireland it is devolved, and the differences are substantial.
Trade rules kept at founder level. The Windsor Framework section explains what a small business needs to know and links to official guidance rather than attempting a customs manual.
No sales angle. Epiclectic does not sell company formations, customs services or accounting software, and takes no referral fees from anyone named here.

1. What’s the same, and what’s different in Northern Ireland

Is starting a business in Northern Ireland different? Partly. Company registration, Corporation Tax, VAT, National Insurance and income tax rates are UK-wide and identical. Business rates are calculated differently, employment law is devolved and diverges from Great Britain, business support runs through Invest NI, and moving goods from GB has its own rules.

SAME ACROSS THE UK

UK-wide rules apply

Registering a company at Companies House
Corporation Tax
VAT and the £90,000 registration threshold
Income tax rates and bands
National Insurance
Making Tax Digital for Income Tax

DIFFERENT IN NORTHERN IRELAND

NI rules apply

Business rates: Net Annual Value and a combined poundage
Rate reliefs, including automatic Small Business Rate Relief
Employment law and health and safety law
Business support through Invest NI
Bringing goods in from Great Britain
Planning and council licensing

Employment law: the difference most guides get wrong

This matters the moment you hire anyone. Employment law is devolved to Northern Ireland and has been for decades, so Great Britain’s reforms do not automatically apply here. The Employment Rights Act 2025 applies in Great Britain, not Northern Ireland, and NI is progressing its own Good Jobs Employment Rights Bill separately.

Practical examples of where NI differs today:

Unfair dismissal claims can generally be brought after one year’s service in Northern Ireland, rather than the two years that applied in Great Britain.
Acas does not operate here. The equivalent is the Labour Relations Agency, and most claims must go through its early conciliation process before reaching a tribunal.
Holiday pay uses a 12-week reference period in NI, rather than the 52-week period used in GB.
Several GB rights simply do not exist here, or arrived on different dates, and the list of divergences runs to dozens of items.
Health and safety law is also devolved, so guidance written for GB employers does not always apply.

If you employ staff in both NI and GB, treat them as two jurisdictions: two sets of contracts, two sets of policies, and advice from someone who works across both. [Before publishing, confirm current qualifying periods and any Good Jobs Bill provisions that have since commenced.]

Area	Great Britain	Northern Ireland
Business rates calculation	Rateable value × a national multiplier	Net Annual Value × (regional rate + your council’s district rate)
Small business rate relief	Applied for, thresholds by rateable value	Applied automatically to qualifying bills
Company numbers	Numeric, or “SC” for Scotland	“NI” prefix for companies registered in Northern Ireland
Employment law	Set at Westminster; Employment Rights Act 2025 applies	Devolved; that Act does not apply, and NI has its own bill in progress
Workplace dispute body	Acas	Labour Relations Agency
Bringing in stock from GB	Domestic movement	Windsor Framework arrangements apply
Free business support	Growth hubs and national services	Invest NI and nibusinessinfo

If you are at the beginning, read this alongside our national guide to starting a business in the UK. We also have companion guides for Scotland and Wales.

2. Step by step: setting up in NI

The order is the same as anywhere in the UK. Four steps carry a Northern Ireland difference, marked below.

Test the idea locally

Belfast, the north west and rural council areas behave very differently, and cross-border trade with Ireland is part of normal business life for many firms here. Council economic development teams and Invest NI advisers know their areas.

Choose your structure

Sole trader, partnership or limited company, under the same UK rules. Our guide to business structures compares them.

Sole traders register for Self Assessment. Companies incorporate through Companies House, and a company registered in Northern Ireland receives a company number beginning “NI”. See our guide to registering a business.

Open a business account and set up records

Keep business and personal money separate, and choose software that works with Making Tax Digital, which applies here as it does across the UK.

Check the Net Annual Value before signing · NI difference

Your rates bill depends on the property’s NAV and your council’s poundage, and those poundages vary widely across the eleven councils. Section 3 shows how to work it out.

Sort out how stock reaches you · NI difference

If suppliers send goods from Great Britain, check what the Windsor Framework requires of them and of you. Section 4 covers it at founder level.

Get employment right before your first hire · NI difference

Use NI contracts and NI policies, and take advice from someone who works in this jurisdiction. GB templates bought online will not fit.

Use the free support · NI difference

Invest NI and nibusinessinfo are the main routes, alongside council business teams and InterTradeIreland for cross-border work. Section 6 sets out who does what.

Editor’s note: the two steps that catch people out are 5 and 7. A property’s Net Annual Value can push your rates bill thousands of pounds either way depending on the council, and GB employment templates can create problems that only surface at a tribunal.

3. Business rates in Northern Ireland

This section was reviewed for technical accuracy by Shamayun Chowdhury, Senior Accountant at Major Accountancy, Leicester. Figures apply to the 2026-27 rating year.

Northern Ireland calculates rates in a way that exists nowhere else in the UK. There is no single national multiplier. Your bill depends on which of the eleven councils your premises sit in, and the difference between the cheapest and dearest areas is substantial.

How are business rates calculated in Northern Ireland? Your bill is the property’s Net Annual Value multiplied by the combined poundage for your council area. The poundage has two parts: a regional rate set by the Northern Ireland Executive, which is the same everywhere, and a district rate set annually by each council. Land & Property Services collects the bill.

The two components for 2026-27

REGIONAL RATE · SAME EVERYWHERE

0.3079

The non-domestic regional rate for 2026-27, set by the Executive, a 3% increase on the previous year and deliberately below inflation.

DISTRICT RATE · VARIES BY COUNCIL

Set by each of the 11 councils

Struck annually. Added to the regional rate to give your combined poundage.

Once combined, the 2026-27 poundage runs from roughly 0.5784 in Fermanagh and Omagh to about 0.7216 in Derry City and Strabane. That spread is the single most important number in this guide.

What the council difference costs

Net Annual Value	At the lowest combined poundage (about 0.5784)	At the highest (about 0.7216)	Difference
£10,000	About £5,784	About £7,216	About £1,432 a year
£18,000	About £10,411	About £12,989	About £2,578 a year
£30,000	About £17,352	About £21,648	About £4,296 a year

Illustrative calculations before any relief, using the range of combined poundages for 2026-27. Check your own council’s poundage and your property’s NAV before budgeting.

Reval 2026: why bills moved even with a 3% cap

2026 was a revaluation year, so Net Annual Values were reassessed. Valuations rose by an average of around 15% across sectors, with some hospitality properties reportedly facing much steeper increases. Because the bill is NAV multiplied by poundage, a business can face a noticeably higher bill even though the regional rate rose by only 3%.

If your valuation looks wrong, there is a formal route to challenge it, and the window is short. Deal with any valuation decision as soon as it arrives rather than filing it away.

Small Business Rate Relief: you do not apply

Do I need to apply for Small Business Rate Relief in Northern Ireland? No. Qualifying businesses receive it automatically on their annual rates bill. Eligibility is based on the property’s Net Annual Value, and the scheme has been extended to cover the 2026-27 rating year.

This is a genuine difference from Scotland and Wales, where relief has to be claimed. The bands work like this:

Net Annual Value	Relief
Up to £2,000	50% reduction
More than £2,000 but not more than £5,000	25% reduction
More than £5,000 but not more than £15,000	20% reduction

Around 30,000 businesses receive reductions of between 20% and 50% under the scheme, and the Finance Minister has said he intends to make the case for broadening it further, with £10 million set aside in draft Budget proposals for 2026/27. Check your bill shows the relief. Automatic does not mean infallible, and if your NAV is £15,000 or less and no reduction appears, query it.

Other reliefs worth knowing

Back in Business. A 50% rates discount for up to two years when you occupy a retail property that has been vacant for at least 12 months. If you are looking at empty units, this can transform the first two years’ costs. It has been extended for 2026/27.
Industrial derating for qualifying manufacturing premises. If you manufacture anything, check it has been applied, and applied to the right floor area.
Rural ATM exemption, also extended for 2026/27, to help maintain cash access in rural communities.
Charitable and other reliefs operate alongside these. Land & Property Services and nibusinessinfo list the current schemes.

Before you sign for premises: look up the Net Annual Value, find your council’s 2026-27 poundage, multiply the two, then subtract any relief you expect. If the answer surprises you, that is the number to negotiate the rent around, not the other way round.

4. Bringing goods in from Great Britain

This is the part that worries new owners most, and for many businesses it turns out to be irrelevant. Start by working out which group you are in.

LIKELY UNAFFECTED

Services and locally sourced goods

Hairdressers, trades, consultants, cafés buying from NI or Irish suppliers, anyone selling services. The framework governs the movement of goods, so if nothing crosses the Irish Sea into your business, it does not shape your day-to-day.

DIRECTLY AFFECTED

Anyone bringing stock in from GB

Retailers, wholesalers, food businesses, manufacturers buying components. You need to know how your suppliers move goods, and whether you should be authorised yourself.

The basics, in plain English

Goods moving from Great Britain to Northern Ireland travel through one of two routes. Goods staying in the UK move through the UK internal market lane with greatly reduced paperwork. Goods considered at risk of entering the EU single market go through the red lane and face full customs processes.

Do I need UKIMS to bring stock from GB? If your business moves goods from Great Britain into Northern Ireland for sale or final use here, you generally need authorisation under the UK Internal Market Scheme to use the internal market lane and avoid customs duty and full declarations. If your supplier handles the movement and is authorised, the obligation may sit with them rather than you, so confirm it in writing.

What a small business actually needs to check

Ask your GB suppliers how they move goods. Are they UKIMS-authorised? Does the price you are quoted include any duty or handling? Get it in writing before you commit to a supply arrangement.
If you move goods yourself, look at UKIMS authorisation. Check current eligibility and the application process on GOV.UK, and keep the authorisation current. A lapsed authorisation is a common cause of problems at the port.
Food businesses have extra rules. Retail agri-food moving under the Northern Ireland Retail Movement Scheme must meet labelling requirements, with “Not for EU” markings applying to relevant products. If you sell food brought in from GB, confirm your supplier is scheme-registered and labelling correctly.
Use the Trader Support Service. It is free and exists precisely for businesses that do not have a customs department.
Parcels are largely handled by carriers. For consumer parcels sent to people in NI, carriers generally manage the reporting rather than the sender filing declarations.

Important: these arrangements change, and the detail runs well beyond what any general guide should attempt. Treat this section as orientation, then check the current position on GOV.UK, with the Trader Support Service or with InterTradeIreland before making supply decisions. Businesses handling goods regularly should take proper customs advice.

5. Selling out: GB, Ireland and beyond

Bringing goods in is the part people worry about. Selling out is where Northern Ireland’s position can work in your favour.

Selling to Great Britain

Northern Ireland businesses have unfettered access to the rest of the UK market for qualifying NI goods, with export declarations removed for the vast majority of movements. In practice, selling from Belfast to Birmingham works like any domestic sale. The unfettered access arrangements are designed to benefit Northern Ireland traders specifically, rather than businesses routing goods through NI to obtain the same treatment.

Selling to Ireland and the EU

This is the part that makes NI unusual. For goods, Northern Ireland remains aligned with EU single market rules, which means NI-based manufacturers and producers sit inside two markets at once. For a business selling physical products, that can be a genuine commercial advantage rather than a complication, particularly where a GB-based competitor faces full customs processes to reach the same customers.

Cross-border trade with Ireland is also ordinary business here rather than an exotic project. InterTradeIreland exists specifically to support it, and many NI firms treat the island as a single trading area for sales purposes.

Selling further afield

Exporting beyond the UK and Ireland follows the same broad process as anywhere in the UK, with NI’s position adding some particular considerations for goods. Our guide to starting an import and export business in the UK covers the general ground, and Invest NI runs export support programmes for local firms.

Worth putting in your business plan: if you make or process goods, dual market access is a selling point when you approach distributors, investors or customers on either side of the border. Frame it commercially and check the detail with InterTradeIreland or Invest NI before you make claims in a pitch.

6. Free support and funding in NI

Northern Ireland’s support network is compact and reasonably easy to navigate, which is an advantage over the fragmented picture in parts of England.

Organisation	What it offers	Best for
nibusinessinfo.co.uk	Invest NI’s official business information service: guidance on rates, regulations, employment, trade and funding	Checking any NI-specific rule. Start here
Invest Northern Ireland	The regional economic development agency: advice, programmes, innovation and export support, and a helpline on 0800 181 4422	Growth, innovation and exporting
Your council	Local economic development teams, business start programmes, premises information, rates and licensing	Early-stage and local support
InterTradeIreland	Cross-border trade support, including practical guidance on trading with Ireland	Anyone selling or buying across the border
Trader Support Service	Free help with moving goods from GB to NI, including declarations	Businesses bringing in stock
Labour Relations Agency	Free, impartial employment relations advice and early conciliation	Anyone employing staff

Funding falls into the usual three groups: NI public funding through Invest NI programmes and council schemes, UK-wide options such as Start Up Loans and British Business Bank-backed finance, and commercial lending or investment. Schemes open and close, so check current programmes on nibusinessinfo or with Invest NI rather than relying on any list, including this one.

One administrative point for anyone receiving public support: since January 2026, businesses in Northern Ireland are responsible for recording state aid granted under de minimis rules on the e-Aid register. Ask whoever awards the support how it should be recorded.

7. Licensing and local rules

Licensing runs through your district council, and requirements differ from GB in places. Check before you sign for premises, not after.

Food businesses: register with your council’s environmental health service before trading, and expect a hygiene inspection.
Alcohol: Northern Ireland has its own licensing system, which differs significantly from the rest of the UK, including limits on the number of licences available. Take specialist advice early if a licence is central to your plan.
Street trading: councils issue street trading licences, and availability varies by area.
Entertainment: venues providing entertainment generally need an entertainments licence from the council.
Planning: changing a building’s use, altering a shopfront or putting up signage may need planning permission under NI planning rules, administered by councils.
Sector regulators: financial services, healthcare and similar fields are regulated UK-wide, so those requirements are unchanged.

The practical approach is the same everywhere in this series: ring the council, describe exactly what you intend to do and where, and ask what applies. An hour on the phone can save a lease.

8. Is NI a good place to base a business?

Every location involves trade-offs. Here are Northern Ireland’s, set out plainly.

In favour

Dual market access for goods: the UK and the EU single market
Property costs well below London and much of GB
Automatic Small Business Rate Relief, with no application to remember
Back in Business relief for taking on vacant retail units
A compact, navigable support network
A growing business base: NISRA counted 82,680 VAT or PAYE-registered businesses in March 2026, up 1.9% and the twelfth annual rise in a row

Against

Rates poundages among the highest in the UK, with wide council variation
Reval 2026 pushed many valuations up sharply
Extra work if your stock comes from Great Britain
Separate employment law, so GB templates and advice do not transfer
A smaller domestic market than most GB regions
Rules that continue to evolve, requiring ongoing attention

The short version: Northern Ireland suits goods producers who can use dual market access, service businesses with no cross-Irish-Sea supply chain, and anyone who can take advantage of lower property costs and the Back in Business scheme. It suits less well a business whose entire stock comes from GB in small, frequent consignments, unless the supplier arrangements are solid.

Small business owner outside their shop on a Northern Ireland high street.

9. Common mistakes when starting in Northern Ireland

Using GB rates guidance. There is no single multiplier here. Your bill depends on your council’s poundage, and the gap between areas runs to thousands of pounds a year.
Comparing rents without comparing Net Annual Values. Two similar units in different council areas can carry very different rates bills.
Assuming Small Business Rate Relief appeared. It is automatic, but automatic is not infallible. If your NAV is £15,000 or less, check the reduction is on the bill.
Ignoring Back in Business. Taking a unit that has been vacant for a year or more can cut rates by half for up to two years.
Manufacturing without checking industrial derating. Confirm it applies, and that it covers the right floor area.
Buying GB employment contracts online. Employment law is devolved here, so GB templates can be wrong in ways you only discover at a tribunal.
Not asking suppliers how goods move. If your stock comes from Great Britain, the arrangement your supplier uses affects your costs and your paperwork.
Treating dual market access as a slogan. It is a real commercial position, but only if your product and processes actually qualify. Check before you build a pitch around it.

10. Case study: a small manufacturer weighing its supply chain

This is an illustrative scenario created for this guide. It is not a real business, and the figures are simplified examples.

The plan. An engineer leaves a manufacturing job to make specialist fittings, selling to trade customers in Northern Ireland, Ireland and Great Britain. She needs a small industrial unit and buys components from two suppliers, one in England and one in the Republic.

The premises decision. She views two units with similar rent in different council areas. Their Net Annual Values are close, but the combined poundages are not, and the difference works out at more than £2,000 a year before any relief. She also checks industrial derating, since the unit is used for manufacturing, and asks Land & Property Services to confirm how it would apply.

The supply chain question. Her English supplier confirms in writing how it moves goods into Northern Ireland and whether the quoted price includes any duty or handling. Her Irish supplier is simpler, since those goods do not cross the Irish Sea. She registers with the Trader Support Service so she has somewhere to ask questions rather than guessing.

The market decision. Selling to Ireland is straightforward for her goods, and she uses that in conversations with distributors on both sides of the border. She talks to InterTradeIreland before making any claims about her position in sales material.

Her first hire. When she takes on an apprentice, she uses a Northern Ireland contract drafted locally rather than a GB template, and notes that the Labour Relations Agency, not Acas, is the body she would deal with in a dispute.

What made the difference: she compared rates bills rather than rents, and she got her supplier arrangements in writing before committing to either of them.

11. Launch checklist

UK-wide steps

☐ Choose your structure
☐ Register with HMRC or Companies House
☐ Open a business bank account
☐ Set up MTD-compatible records
☐ Arrange insurance, including employers’ liability if hiring
☐ Watch the £90,000 VAT threshold

Northern Ireland steps

☐ Look up the Net Annual Value and your council’s poundage
☐ Check Small Business Rate Relief appears on the bill
☐ Ask about Back in Business if the unit has been empty
☐ Check industrial derating if you manufacture
☐ Confirm how GB suppliers move goods, in writing
☐ Register with the Trader Support Service if you bring in stock
☐ Use NI employment contracts and policies
☐ Check council licensing before signing for premises

12. Frequently asked questions

How are business rates calculated in Northern Ireland?

Your bill is the property’s Net Annual Value multiplied by the combined poundage for your council area. The poundage is the regional rate set by the Northern Ireland Executive, which is the same everywhere, plus the district rate set by your council. Land & Property Services collects the bill.

Do I need to apply for Small Business Rate Relief in NI?

No. Qualifying businesses receive it automatically on their annual rates bill, based on the property’s Net Annual Value. Relief runs at 50% up to £2,000 NAV, 25% between £2,001 and £5,000, and 20% between £5,001 and £15,000. The scheme has been extended for the 2026-27 rating year.

Do I need UKIMS to bring stock from Great Britain?

If your business moves goods from Great Britain into Northern Ireland for sale or final use here, you generally need UK Internal Market Scheme authorisation to use the internal market lane. Where your supplier moves the goods and is authorised, the obligation may sit with them, so confirm the arrangement in writing and check current requirements on GOV.UK.

What is Back in Business rates relief?

It is a Northern Ireland scheme giving a 50% rates discount for up to two years when a business occupies a retail property that has been empty for at least 12 months. It has been extended for 2026/27, and it can substantially reduce costs for a business taking on a vacant high street unit.

Is Invest NI support free?

Invest Northern Ireland provides information, advice and programmes for local businesses, and nibusinessinfo.co.uk is its free online business information service. Individual programmes have their own eligibility criteria, so check what you qualify for through the helpline or website.

Do I register a Northern Ireland company differently?

No. Companies House covers the whole UK, so the registration process is the same. A company with its registered office in Northern Ireland receives a company number beginning “NI”. Sole traders do not register with Companies House at all; they register for Self Assessment with HMRC.

Is employment law the same in Northern Ireland?

No. Employment law is devolved to Northern Ireland, so Great Britain’s Employment Rights Act 2025 does not apply here and NI is progressing its own legislation. Differences include a one-year qualifying period for unfair dismissal claims and the Labour Relations Agency taking the role Acas plays in Great Britain. Use NI-specific contracts and advice.

13. Sources

About the author and reviewer

Written by the Epiclectic Editorial Team. Epiclectic is an independent UK publication owned by Eternity Accountants Limited, publishing practical, fact-checked guides across accounting, business, home & living, gardening, travel, sustainability and wellness. We verify figures against official sources, label illustrative examples clearly, and review guides on a set schedule.

Rates section reviewed by Shamayun Chowdhury, Senior Accountant at Major Accountancy, Leicester, and Lecturer in Accounting at Nottingham Trent University, with more than 15 years in UK accounting practice. His review covers Section 3.

Last reviewed: September 2026. Reviewed each April when regional and district rates are set, when rate relief schemes are extended or changed, and when Windsor Framework arrangements or NI employment legislation change.

This guide is general information about starting a business in Northern Ireland, not legal, tax or customs advice. Check current figures with nibusinessinfo, Land & Property Services and HMRC, and take local advice on employment contracts and on moving goods.

Northern Ireland Business Guide: Start Up (2026/27)