It is expected that the Budget will contain a definition of certain avoidance schemes for which it will become obligatory to submit details to Customs & Excise or the Inland Revenue.
On receiving a report, the tax authorities would then determine whether to legislate to stamp out the scheme, The Financial Times reported.
The Treasury said it was concerned the Big Four had marketed methods of tax avoidance they knew would become illegal under forthcoming legislation.
But the Confederation of British Industry warned proper consultation was necessary to avoid hindering legitimate business transactions with the changes.
HMRC breaches client confidentiality; and partner profits fall at EY. These stories and more discussed in Friday Afternoon Live
Two new audit partners have been appointed at the firm BDO in its audit practice following continued growth and investment
Changes to the tax system is urged to support the growth of entrepreneurs, found a report from the Grant Thornton UK, the Institute of Directors, and the Prelude Group
Six new partners have been revealed by top ten firm Mazars