Prices for all FastPost letters, along with some courier, international and business products, international air parcels and bulk mail would increase.
Standard Post prices would remain unchanged in 2017.
New Zealand Post said it would continue to seek ways to improve efficiency and make cost savings to keep the price of sending mail as low as possible in the future.
Postage prices also increased last year.
Saturday delivery surcharges would increase 20c, and the rural delivery surcharge will increase 50c.
International Express Courier products will rise up to 10 per cent for items over 1 kilogram, all products under that weight would increase by $5.