ING is offering existing customers a promotional interest rate of 3.30% on newly deposited funds in their Extra account, valid from March 1 to August 1, 2024, for amounts between EUR 1,000 and EUR 250,000. To qualify, customers must transfer new capital from an external account by February 23, 2024. Interest will be credited automatically at the end of the year, with deposits protected up to EUR 100,000.