How many Miles do I need to earn or redeem after 1 January 2020 to keep my Miles active?

There isn’t a minimum amount of Miles required. So long as you earn or redeem your Miles at least once every 18 months*, your Miles will remain active.

(Remarks: *For all new Miles earned from 1 January 2020, the Miles expiry date is automatically extended by 18 months from your last Miles crediting or debiting date. All Miles credited on or before 31 December 2019 will continue to follow the former Miles expiry arrangement.)

More about new expiry arrangement

What is the new change on the expiry rule of Asia Miles?
What are the differences between time-based and activity-based systems?
Why did you change the expiry rule of the programme?
What are the differences between activity/transaction date and crediting/debiting date?
Will this change affect the Miles earning and redemption mechanisms within the programme? How about Flight Award availability?
What will happen if my account is inactive for 18 months?
Can I still renew my Miles after the change on the expiry rule?
How do I know which system my newly earned Miles will fall into?
Can I reallocate my Miles from the time-based system into the activity-based system?
Why are there two systems in my account? How will I know how many Miles are outstanding and when will the Miles expire under the two systems?
Which system will my Miles be deducted from first, the time-based system or the activity-based system?
When I use my Miles for redemption, can I combine my Miles from the time-based and new activity-based system?
If I have Miles refund, which system will the refunded Miles go into?