Treasury Secretary John Whitehead says the latest version of New Zealand's guarantee for retail bank deposits should be the final one.
Amid international financial turmoil, the New Zealand Government announced on 12 October that it would guarantee retail bank deposits.
On Wednesday, Treasury and the Reserve Bank said the guarantee for deposits would be capped at $1 million per depositor per institution.
Joining fees for some finance companies will also be higher.
The potential liability of the guarantee is $NZ450 billion.
Mr Whitehead told Morning Report the Treasury and the Reserve Bank are still considering whether guarantees for borrowing by New Zealand banks on the international money markets are necessary.