Open Dental is currently being used in New Zealand by a few offices and it works well.
We generally provide email support to New Zealand because of the time difference. However, New Zealand customers are always welcome to call us during our normal business hours. The time in New Zealand is about 19 hours ahead of us, so it is easiest to reach us in the morning, because it will be late afternoon of the day before in Pacific Time.
Set your Region and Language settings to English (New Zealand) on each computer. This will trigger features that we have included specifically for New Zealand, such as different names for some address fields and additional information on tax invoices as described below.
Some countries require special tax invoices to be given to their patients for goods and services. In New Zealand it is required that these tax invoices include GST (Goods and Services Tax) information.
Details regarding information that must be shown can be found at http://www.ird.govt.nz/gst/work-out/work-out-records/records-tax/tax-info/.
See the Invoice page for specifics and screenshots.