NSC
The National Sort Code (NSC) is a 6-digit code identifying Irish bank branches, similar to the UK sort code system. Used for domestic transfers and direct debits, the NSC is also embedded within Irish IBANs for SEPA payments.
At a glance
Country
Ireland
Identifier
NSC
Format
6 digits
Used for
Domestic transfers
Format breakdown
93
Bank Code
1–2
Bank identifier (e.g. 93 = AIB)
1234
Branch Code
3–6
Branch identifier
How it works
The first 2 digits identify the bank, and the remaining 4 identify the branch. The NSC works alongside the 8-digit account number and is embedded in the Irish IBAN for all euro transfers across the SEPA zone.
Where to find yours
On your bank statement, debit card, in your online banking app, or embedded in your IBAN (digits 9–14).
Payment systems in Ireland
| System | Speed | Description |
|---|---|---|
| SEPA Instant | Under 10 seconds | Instant euro transfers across the eurozone |
| SEPA Credit Transfer | 1 business day | Standard euro transfers within Europe |
| SEPA Direct Debit | 2–3 business days | Recurring bill payments and subscriptions |
Major banks in Ireland
Good to know
Irish IBANs are 22 characters: IE + 2 check digits + 4-letter bank code + 6-digit NSC + 8-digit account.
Since KBC and Ulster Bank exited Ireland, most customers moved to AIB, BOI, or Permanent TSB.
All domestic and eurozone transfers now use IBAN under SEPA — the NSC alone is no longer sufficient.
Related tools
Other countries
Frequently asked questions
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