Start buying KiwiStamps! Their value will rise about 20% on 1 October if you buy them at 50c each before then.
- Medium (which is KiwiSpeak meaning the smallest size): 60c by Standard Post, $1.20 by FastPost.
- Large: $1.20, $1.80
- Extra large: $1.80, $2.40
- Oversize: $2.40, $3
For all of those, a KiwiStamp will pay for each 60c.
The free leaflet available at post shops lists many other items with the new or unchanged prices. Changes range from plus 25% to minus 4%. KiwiStamps are not stated to be available for them, but the parcel rates are all moved to multiples of 60c, which suggests that they may be.