To send a standard letter within Australia in 2025, you’ll generally pay $1.70 for a small domestic letter or postcard, with higher prices for larger or priority mail.

Current basic letter cost

  • A regular small letter/postcard (up to 250 g, within standard small-letter dimensions) costs $1.70 in postage.
  • This price reflects a mid‑2025 increase from $1.50 to $1.70, approved to help cover Australia Post’s letter delivery losses.
  • Most everyday personal letters (e.g., a card in a normal envelope) fall into this small‑letter category, so one standard stamp is enough.

Larger domestic letters

  • A large letter up to 125 g costs about $3.40 , typically needing at least two standard-value stamps.
  • Up to 250 g is around $5.10 , and up to 500 g is around $8.50 , with price jumps driven by weight and thickness.
  • Seasonal greeting products (like Christmas cards) and concession stamps can still be cheaper, with some special rates unchanged despite the general increase.

Priority vs regular

  • Regular letter service is the default and cheapest option; delivery is slower but sufficient for most non-urgent mail.
  • Priority adds about $1.00 on top of the regular letter price (for both small and large letters), giving faster delivery.
  • For example, a priority small letter is about $2.70 total, while a priority large letter up to 125 g is about $4.40.

Domestic vs international letters (quick glance)

Below is a simple look at typical 2025 prices for sending letters within Australia vs overseas from Australia Post–style rate guides.

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Type of letter Approx. 2025 price Notes
Small domestic letter/postcard (up to 250 g) $1.70 One standard stamp; regular speed.
Large domestic letter (up to 125 g) $3.40 Heavier/bigger envelope, at least two stamps.
Large domestic letter (up to 250 g) $5.10 For thicker contents like multiple documents.
Large domestic letter (up to 500 g) $8.50 Upper end of letter size before parcels.
Priority small domestic letter $2.70 (≈ $1.70 + $1.00) Faster delivery within Australia.
Priority large domestic letter (up to 125 g) $4.40 (≈ $3.40 + $1.00) Faster, heavier document mail.
International small letter to New Zealand From about $3.00 Price varies by destination “zone”.
International small letter to Asia-Pacific From about $3.50 Higher than NZ but still relatively low.
International small letter to US/Canada From about $4.10 Further zones generally cost more.

Quick practical tips

  • For a simple “how much to send a letter in Australia” case (standard card or note to someone in another Australian suburb), assume $1.70 for regular post and buy one current domestic stamp.
  • Always check:
    • Letter is within “small letter” size and under 250 g
    • You are not putting rigid items (coins, keys, USBs), which can push it into parcel territory.
  • If you need speed or you are sending overseas , check the latest online calculator or post office counter, as rates can change and vary by country zone.

Information gathered from public forums or data available on the internet and portrayed here.