The regulator for tax accountants will be given its own budget while loopholes that allow deregistered tax agents to continue operating will be closed, in the federal government’s first response to the PwC leaks scandal.

The amendments to the Tax Agent Services Act, which will be introduced to parliament by Treasurer Jim Chalmers on Thursday, are the first tranche of recommendations from the 2019 independent review of the Tax Practitioners Board led by tax lawyer Keith James.