Cahuzac, who resigned in disgrace in March and is facing tax fraud charges, had been at the centre of the biggest scandal to hit President Francois Hollande's Socialist government since he took office last year.
Once in charge of battling tax evasion and fraud, Cahuzac has admitted to repeatedly lying about overseas accounts in Switzerland and Singapore said to contain around USD 770,000.
But he refused to answer questions about the accounts during parliamentary hearings into the scandal, saying he would not comment while a criminal investigation was ongoing.
The parliamentary investigation is probing whether Hollande or other senior officials may have been aware of the accounts and how the government handled the crisis.
Cahuzac, who has been expelled from the Socialist Party and lost his seat in parliament, said he was not in a position to know how much Hollande or other top officials knew about his accounts.
He said he thought his bosses had believed his strenuous denials of having the accounts.
Cahuzac had earlier on French radio promised to answer the panel "as honestly as possible" but also described himself as a "scapegoat for all political corruption".
The questioning came a day after the lower house of the French parliament approved a new law on transparency laws rules that opened the assets of parliamentarians to public scrutiny.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
