Synthetic QA data · CH

Switzerland test IBAN numbers

Ten checksum-valid Switzerland test IBANs with their domestic bank code and account number, ready for a payment form, fixture or unit test, plus invalid CH cases that a correct validator must reject.

Synthetic only: the bank code may belong to a real Switzerland bank, but each account number is random. Never use these values for payments or to represent a real account.

21characters
CHcountry code
17BBAN characters
YesSEPA country
Generate more CH IBANs Download CSV Download JSON

Valid Switzerland test IBANs

IBANBank codeAccount numberBank (public registry)
CH20 8117 9177 3795 7662 5 81179 177379576625 RAIFFEISEN SCHWEIZ GENOSSENSCHAFT, Escholzmatt
CH45 0024 0268 6044 3364 4 00240 268604433644 UBS SWITZERLAND AG, Geneva
CH66 8053 9889 8702 9068 1 80539 889870290681 RAIFFEISEN SCHWEIZ GENOSSENSCHAFT, Reckingen
CH38 7643 0253 3768 4723 5 76430 253376847235 BANCA DELLO STATO DEL CANTONE TICINO, Chiasso
CH74 3029 6023 7919 2055 1 30296 023791920551 CIM Banque SA
CH26 8301 5160 0435 9776 9 83015 160043597769 MBaer Merchant Bank AG
CH59 0022 5914 7673 8682 5 00225 914767386825 UBS SWITZERLAND AG, Zurich
CH07 0851 5281 9765 9519 6 08515 281976595196 Bank Julius Bär & Co AG
CH26 0021 5184 2774 6670 9 00215 184277466709 UBS Switzerland AG
CH60 3025 9095 6493 8277 9 30259 095649382779 Société Générale

Invalid CH IBANs for negative tests

Each value is derived from the first valid IBAN above and re-checked, so the expected result is exact.

CaseInputExpected validator result
Wrong check digits CH2181179177379576625 Reject: MOD-97 checksum fails
Transposed BBAN digits CH2018179177379576625 Reject: MOD-97 checksum fails
One character too short CH208117917737957662 Reject: length does not match the country format
Wrong country prefix FR2081179177379576625 Reject: length or checksum fails for the other country
Lowercase with spaces ch20 8117 9177 3795 7662 5 Accept after normalizing case and whitespace

Switzerland IBAN format

CH + 2 check digits + 5 digits + 12 letters or digits = 21 characters. Validate the length and character classes first, then the MOD-97 checksum: move the first four characters to the end, convert letters to numbers (A=10 … Z=35) and the remainder modulo 97 must be 1.

Need rows for the same bank, city or BIC your integration talks to? The generator can target them, keep a stable seed and export 1,000 rows at a time.

curl -X POST https://ibangen.com/api/v1/generate \
  -H "X-API-Key: $IBANGEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"country": "Switzerland", "quantity": 100}'

Test against real bank structures, not just checksums

Free: 10 CH rows at a time. Pro adds bank targeting, 1,000-row batches, CSV/JSON exports and the API; Business adds exact BIC and branch targeting.

Target a Switzerland bank Get an API key Validate an IBAN

Questions

Are these Switzerland test IBANs real bank accounts?

No. They are synthetic CH IBANs with a correct national format and MOD-97 checksum. The bank code can match a real institution, but the account number is random and must never be used for payments.

How long is a Switzerland IBAN?

A Switzerland IBAN has 21 characters: the country code CH, two check digits and a 17-character BBAN (5 digits, 12 letters or digits).

Can I get more Switzerland test IBANs for a specific bank or city?

Yes. The Switzerland generator creates up to 10 rows free. Paid plans add bank, city and exact BIC targeting, 1,000-row batches, CSV/JSON exports and the same data through the API.

Test IBANs for other countries

IBANgen provides synthetic QA data. It does not verify account ownership, balances, reachability or payment execution.