What Is an IBAN Number and Where to Find It? Complete Guide

published on 19 January 2025

If you've ever made an international bank transfer or received money from abroad, you've probably encountered an IBAN number. But what exactly is it, and why is it so important for your banking transactions? Let's break it down in simple terms.

What is an IBAN?

IBAN (International Bank Account Number) is a standardized international numbering system that uniquely identifies bank accounts worldwide. Think of it as your bank account's international passport – it helps ensure your money reaches the right destination, regardless of which country you're sending it to.

Structure of a IBAN

The IBAN consists of up to 34 alphanumeric characters, including:

  • Country code (2 letters)
  • Check digits (2 numbers)
  • Basic Bank Account Number (BBAN) - includes bank code, branch code, and account number

In Switzerland, the IBAN consists of 21 characters and follows this structure:

  • CH (Country code for Switzerland)
  • 2 check digits
  • 5-digit bank code
  • 12-digit account number

Example: CH93 0076 2011 6238 5295 7

Where to Find Your IBAN

Finding your IBAN is straightforward. Here are the most common places to look:

Online Banking

  1. Log into your e-banking account
  2. Go to "Account Details" or "Account Information"
  3. Look for "IBAN" or "Account Details"

Bank Documents

  • Your bank statements
  • Account opening documents
  • Bank card welcome letter

Mobile Banking App

  • Account information section
  • Account details page
  • Often under "Share account details"

Physical Bank Card

Some banks print part of the information needed to construct your IBAN on your bank card.

Common IBAN Mistakes to Avoid

  1. Confusing Characters: 0 (zero) vs O (letter)1 (one) vs I (letter)8 vs B
  2. 0 (zero) vs O (letter)
  3. 1 (one) vs I (letter)
  4. 8 vs B
  5. Spacing Issues: IBANs are often written with spaces for readabilityPayment systems typically require removing all spacesOur IBAN checker tool automatically handles spacing
  6. IBANs are often written with spaces for readability
  7. Payment systems typically require removing all spaces
  8. Our IBAN checker tool automatically handles spacing
  9. Country Code Confusion: Always starts with country code (CH for Switzerland)Don't confuse with bank codes
  10. Always starts with country code (CH for Switzerland)
  11. Don't confuse with bank codes

Why Verify Your IBAN?

Making a mistake in an IBAN can lead to:

  • Failed transactions
  • Delayed payments
  • Additional bank fees
  • Lost transfers

That's why it's crucial to verify your IBAN before making any transactions. You can easily check if your IBAN is valid using our free IBAN checker tool.

Swiss Banks and IBAN Formats

Major Swiss banks follow standard IBAN formats:

  • PostFinance: CH## 0900 0000 #### #### #
  • UBS: CH## 0024 0240 #### #### #
  • Credit Suisse: CH## 0483 5### #### #### #
  • Raiffeisen: CH## 8080 8### #### #### #

When Do You Need Your IBAN?

You'll need your IBAN for:

  1. Receiving international payments
  2. Setting up direct deposits
  3. International wire transfers
  4. Some domestic transfers
  5. Setting up recurring payments

Using Our IBAN Checker Tool

To ensure your IBAN is correct:

  1. Visit our IBAN checker
  2. Enter your IBAN number
  3. Get instant verification
  4. Check country and bank verification
  5. Confirm formatting is correct

Security Tips When Sharing Your IBAN

While an IBAN alone cannot be used to withdraw money from your account, it's still important to:

  • Only share with trusted parties
  • Verify recipient details carefully
  • Use secure communication methods
  • Keep records of shared IBANs

Final Tips

  • Always double-check IBANs before making transfers
  • Keep your IBAN information easily accessible
  • Use our checker tool for verification
  • Contact your bank if unsure about your IBAN

Need to verify an IBAN number? Try our free IBAN checker tool now to ensure your banking details are correct and avoid transfer issues.

Note: Banking information and IBAN structures can change. Always verify current information with your bank.

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