Angela Knight, chief executive of British Banking Association (BBA), made the comments at a conference in London, and claimed that the initial consensus on the way banking reforms will be implemented needs to be adhered to.
If regulatory changes are not cohesive, then businesses and employees will experience âsignificant difficultiesâ, she explained.
Ms Knight said: âThere is no shortage of ideas, consultations and proposals for regulatory reforms coming not only from our own UK policymakers but also from the EU and other rulemakers such as the Basel Committee.
âEach week brings some new proposal, or a new spin on an old one. The G20 began well in pulling these initiatives together. But what looked coherent some 18 months ago looks much less so today.â
She added that any agreements made within the EU should not be deemed international unless similar changes are made in Asia and in the US.
The next meeting of the G20 is scheduled to take place in Seoul in November.
By Jim Ottewill