Do M life Points expire? Yes, Points and Express Comps will be forfeited if an account hasn't earned any points or Tier Credits in 6 months (for Sapphire members) or 1 year (for Pearl, Gold, Platinum, and NOIR members).
Do Mlife Rewards points expire?
IMPORTANT CREDIT CARD INFORMATION
For Pearl and higher Tiers, Points do not expire as long as you have activity (including use of your M life Rewards Mastercard) within a 12-month period. MGM Resorts International owns the M life Rewards program. Please visit mlife.com or call 866.789.
Does Mlife tier expire?
From the FAQ on the Mlife web site: "Tiers expire on October 1 each year. Tier Credits earned from October 1 to September 30 qualify you for your tier beginning each October 1. If you advance to a higher tier at any time, you'll enjoy those benefits for at least one full year."