Educational guide
How to Invoice in Ireland
VAT-registered traders issue invoices meeting EU and Irish VAT law for deductible B2B supplies.
This page is for general education only. Tax law, e-invoicing rules, and invoice mandates vary by sector, threshold, and updates from authorities. Confirm requirements with a qualified accountant, lawyer, or government guidance for your situation.
Invoicing in Ireland follows EU VAT rules with Irish-specific rates and registration thresholds administered by the Revenue Commissioners. The standard VAT rate is 23%, with multiple reduced rates including 13.5% for construction and hospitality services, 9% for newspapers and sports facilities, a super-reduced 4.8% for livestock, and a zero rate for essentials like food, children's clothing, and books. Every VAT-registered business must issue invoices showing their VAT registration number and providing a detailed breakdown of VAT charged at each applicable rate.
Revenue requires invoices to be issued within 15 days of the end of the month in which goods or services were supplied. For intra-EU B2B transactions, both the seller's and buyer's VAT numbers must appear on the invoice, and reverse charge rules may apply for cross-border services. Ireland's proximity to the UK and the unique situation with Northern Ireland under the Windsor Framework add complexity — different VAT rules apply to goods versus services crossing that border.
Payment is typically in EUR via SEPA bank transfer or card payment. Irish businesses must keep all VAT records for at least six years from the date of the transaction. While there is no standalone Irish e-invoicing mandate for private B2B transactions beyond public procurement, the EU's ViDA (VAT in the Digital Age) initiative will bring broader digital reporting and e-invoicing requirements in the coming years. Ireland's business environment is open and internationally oriented, with many multinational headquarters based in the country, making clear cross-border invoicing practices particularly important for Irish businesses.
Invoice checklist: common fields in Ireland
What buyers, auditors, and tax authorities often expect to see on a commercial invoice. “Required” reflects typical compliance expectations for registered businesses—not every sole trader scenario.
Seller Name & Address
Usually requiredFull trading name and address as registered with Revenue. If the business uses a trading name different from the legal name, both should be included for clarity.
Buyer Name & Address
Usually requiredRequired for all VAT invoices. The buyer's VAT number is mandatory for intra-EU B2B transactions to apply reverse charge or zero-rate treatment on cross-border supplies.
Invoice Number
Usually requiredA unique sequential number for each invoice issued. Revenue expects numbering to be consistent and traceable, with no gaps or duplicate numbers within a numbering series.
Invoice Date
Usually requiredMust be issued within 15 days of the end of the month in which the supply was made. Late issuance can result in penalties and complications for both parties' VAT returns.
VAT Registration Number
Usually requiredIrish VAT number format: IE followed by 7 digits and 1-2 letters (e.g., IE1234567T or IE1234567WH). Buyers verify this on the VIES system for intra-EU transactions.
Tax Breakdown
Usually requiredNet amount, VAT rate, and VAT amount for each rate applied on the invoice. If a supply is zero-rated or exempt, cite the legal basis or relevant section of the VAT Consolidation Act.
Currency
Usually requiredEUR for domestic transactions. GBP is common for Northern Ireland trade — convert to EUR for VAT return purposes using the ECB rate or an agreed alternative.
Payment Terms
Often optional30 days is standard in Irish B2B commerce. The Late Payment in Commercial Transactions Regulations (S.I. 580/2002) provides for statutory interest and compensation costs.
Description of Goods or Services
Usually requiredA clear description of the quantity and nature of the goods delivered or services provided. Sufficient detail is needed for Revenue to verify the correct VAT treatment was applied.
Tax and regulatory themes in Ireland
VAT Rates
Standard 23%, reduced 13.5% (construction, hospitality services), second reduced 9% (newspapers, sports facilities), super-reduced 4.8% (livestock), and zero rate (food, children's clothing, books).
Reverse Charge
Applies to intra-EU B2B services, construction subcontracting (domestic reverse charge), and certain supplies. State 'VAT on this supply is accounted for by the customer.'
Relevant Contracts Tax (RCT)
Principal contractors must withhold RCT (0%, 20%, or 35%) on payments to subcontractors in construction, forestry, and meat processing. Managed through Revenue's eRCT system.
Popular payment methods in Ireland
Methods commonly used for B2B and freelance payments. Availability depends on banks, platforms, and contract terms.
- SEPA bank transfer (IBAN)
- Direct debit
- Credit/debit cards
- Revolut Business
- Cheque (declining)
Business and cultural tips for Ireland
- Irish businesses are generally informal in communication but expect fully compliant VAT invoices with all mandatory fields.
- Include your IBAN prominently — SEPA transfer is the default B2B payment method in Ireland.
- For cross-border trade with Northern Ireland (UK), be aware of the Windsor Framework — different VAT rules apply to goods vs. services.
- Multinationals headquartered in Ireland often have centralized AP processes — confirm the correct billing entity and PO requirements.
- Revolut Business and similar fintech platforms are widely adopted by Irish SMEs. Offering multiple payment options speeds up collections.
- Issue invoices within 15 days of month-end as required by Revenue — late issuance is a common compliance issue found during audits.
- When working with construction clients, confirm whether RCT withholding applies to your payments and register on the eRCT system if needed.
- Irish government procurement increasingly uses Peppol e-invoicing. Check requirements before tendering for public sector contracts.
Invoicing in Ireland: common questions
Invoicing guides for other countries
Prefer a product overview for this market? See Billed for Ireland.
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At a glance
| Field | Required? | Notes |
|---|---|---|
| Seller Name & Address | Required | Full trading name and address as registered with Revenue. If the business uses a trading name different from the legal name, both should be included for clarity. |
| Buyer Name & Address | Required | Required for all VAT invoices. The buyer's VAT number is mandatory for intra-EU B2B transactions to apply reverse charge or zero-rate treatment on cross-border supplies. |
| Invoice Number | Required | A unique sequential number for each invoice issued. Revenue expects numbering to be consistent and traceable, with no gaps or duplicate numbers within a numbering series. |
| Invoice Date | Required | Must be issued within 15 days of the end of the month in which the supply was made. Late issuance can result in penalties and complications for both parties' VAT returns. |
| VAT Registration Number | Required | Irish VAT number format: IE followed by 7 digits and 1-2 letters (e.g., IE1234567T or IE1234567WH). Buyers verify this on the VIES system for intra-EU transactions. |
| Tax Breakdown | Required | Net amount, VAT rate, and VAT amount for each rate applied on the invoice. If a supply is zero-rated or exempt, cite the legal basis or relevant section of the VAT Consolidation Act. |
| Currency | Required | EUR for domestic transactions. GBP is common for Northern Ireland trade — convert to EUR for VAT return purposes using the ECB rate or an agreed alternative. |
| Payment Terms | Optional | 30 days is standard in Irish B2B commerce. The Late Payment in Commercial Transactions Regulations (S.I. 580/2002) provides for statutory interest and compensation costs. |
| Description of Goods or Services | Required | A clear description of the quantity and nature of the goods delivered or services provided. Sufficient detail is needed for Revenue to verify the correct VAT treatment was applied. |
How we verified these requirements. Invoice-field and tax rules for Ireland come from the local tax authority's published SMB guidance. Where local practice differs from the written rules, we note it — enforcement norms vary from the printed regulation in several jurisdictions. For each comparison or claim, we cross-referenced at least one primary source (the vendor's pricing page, an official government dataset, or a published industry report) and noted where the source disagrees with widely-cited secondary numbers. Where source figures change frequently (tax rates, vendor pricing tiers, regulatory thresholds), we flag the data point so it can be re-verified at the start of each filing or fiscal period.
When this isn't for you
If you operate cross-border with complex permanent-establishment or VAT-registration requirements, this guide is not enough. Consult a local tax advisor or accountant licensed in Ireland. The information here is general and not legal or tax advice. Operationally, the structure here breaks down once you cross the threshold of having a dedicated finance/billing team, multi-entity consolidation needs, or a regulated payer environment that mandates specific claim or billing formats. In those cases, treat this as background context and follow your platform's or payer's required workflow rather than a generic best-practice template. For teams under 20 people doing direct-to-client billing, this remains the right starting point — the rubric breaks at the enterprise/ERP boundary, not at small-team scale.