The cost of AUKUS is unknown.

The widely-used estimate of $368 billion over 30 years is based on a three-year old, one-page estimate with no working provided.

Assuming a cost in the low-tens-of-billions per year, AUKUS could be paid for by raising taxes, such as a $17 billion tax on gas exports, cutting spending, perhaps the $21 billion spent on private schools, or with higher debt which could result in around $15 billion per year in interest payments.

_{This briefing note was submitted to the AUKUS Public Inquiry.}