Ask HN: Anyone working remote in NZ for a US company – how do you handle taxes?

I'll be emigrating back to New Zealand shortly (NZ citizen, living and working in the US) and have an opportunity to work remote for the US-based company I'm currently at.

I know that Ask HN is no substitute for expert advice, and I have already talked to an accountant who suggested that either filing as an IR-56 person, or setting up a company, were probably the right ways to go.

I wanted to see if anyone was in the same boat, and if there were any gotchas or things I should know?