Northern Ireland Tax ID Number
VAT Number (VAT)
For Entities, VAT, Example: XI723453785
The Northern Ireland VAT number can be a 9-digit number, a 12-digit number followed by a 3-digit branch identifier, a 5-digit number for government departments (starting with GD) or a 5-digit number for health authorities (starting with HA). The 9-digit numbers use a weighted checksum.
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