To edit or add an IBAN to your company, go to Settings > Company info.
Under Bank details, you can update your IBAN or add an extra one by clicking on +Add IBAN/BIC.
Tip: if you create outgoing invoices on the platform, don't forget to go to your Settings > Outbound > Create online, then select your updated IBAN in the Company IBAN field. The selected IBAN(s) will appear on outbound invoices created on the platform.