The online service allowing people to update PTS details needs to be extended to Tax Agents.

The PTS's issued this year don't show whether a bank account is loaded, so the only options for checking this are to access the details online (only available to the individual), or ring one of the IRD lines.  I rang today to check/update 3 clients' bank account numbers and it took 45 minutes of my time - hardly efficient.

Providing a website users can log into and enter / update information will allow people to do what they do now via another medium. It will be more efficient for both parties and I am a strong supporter of it.

However what could revolutionise the way individuals deal with the IR is to move these communications behind the scenes. There is a small (but growing) segment of the community that currently use software to manage their personal finances. Providing a web-services layer with the portal that allows their current personal finance software can communicate with will lessen the burden of tax compliance considerably.
 

Doesn't this already exist through online services?

The only area I find frustrating about the existing online services, is that I can't update our family assistance details, because the Family Assistance is in my spouse's name - even though it's our joint income that needs to be updated.  We have given IRD authority for the other spouse to speak to them on our behalf, but I still need to ring up when my income changes to update the family assistance calculation.