Sen. Charles Schumer (D-N.Y.) will reportedly unveil a new proposal that would overturn any corporate inversions since 1994.
{mosads}Bloomberg News reported on Sunday that Schumer is still deciding when to introduce the legislation.
Democrats and President Obama have been criticizing companies that have inverted in recent months, a policy that include a company changing its headquarters address to take advantage of lower tax rates overseas.
On Monday, Treasury Secretary Jack Lew will speak in Washington and could unveil new administration policies aimed at making inversions less attractive.
— This report was updated on Sept. 8 at 9:47 a.m.