Handle9:SaltyNZ:ubergeeknz: they should renew it automatically and send a bill IMO, like most other kinds of tax. It's daft the way it's done now IMO.
Could be worse. At least you can do it online. Want to reregister your dog? Physically mail in a piece of paper. No other way.
You can in Auckland, I just did.
Edit: to make sense.
Really? I know you can pay online, but you still have to mail in the paper. At least, that's what the one I just received says.
To be fair, last year I just paid and ignored the paper form, and after about 6 months they sent out the new tag anyway. But I don't think that's how you're supposed to do it.