LUXEMBOURG — European Union finance ministers committed on Tuesday to lifting the veil on personal banking and financial information by 2017 — but they were forced to offer Austria an extra year in order to reach a deal.

The political accord is expected to be completed at another meeting before the end of the year. It would oblige a tax authority in any European Union country to share with another state’s authorities a much larger amount of bank account and personal financial information.

“Bank secrecy is dead and automatic exchange of information will be applied in its widest form,” Algirdas Semeta, the European commissioner in charge of taxation, told reporters after the meeting of ministers. The European Union was “throwing open the traditional hiding places of tax evaders,” he said.

Such exchanges are currently limited to interest on savings accounts, although member states have already agreed, from next year, to include income from employment, directors’ fees, life insurance products, pensions and property, according to European Union officials.