Promoters of aggressive tax avoidance schemes will be forced to disclose their client lists to inspectors under a new crackdown, the Government will announce today.
Think tank scheme operators will be "named and shamed" for sharp practice, Treasury Minister David Gauke will tell the Policy Exchange.
It follows a wave of revelations about the financial loopholes used by the rich and famous to legally side-step hefty tax bills.
Last month comedian Jimmy Carr admitted to making a "terrible error of judgment" after it emerged he was using a scheme to pay an income tax rate as low as 1%.
More top news
Social workers are struggling to deal with a "significant increase" in online child sex abuse, a new report warns.
The police officer who shot dead Michael Brown says he has a clear conscience over his actions.
The three-year-old boy was reported to have repeatedly said "mummy shot" after the tragic accident.