"Of course, our latest release hasn't been without its wrinkles and that's to be expected with a transformation of this size and scale.

"Tax agents in particular are playing a valuable role in letting us know when something isn't happening as they would expect. We're grateful for that contribution and we're trying to be as responsive as possible in making any enhancements or adjustments.

"We're really encouraged to see so many customers are able to get on with their business.

"Some aspects will still take some getting used to and there are definitely some features that could be better but what we have now is far superior to the previous system.

"I think we have a great platform to keep developing and making improvements so New Zealanders continue to get the world class tax system they deserve."

Find out more about Inland Revenue's changes at www.changingforyou.ird.govt.nz.