No, you do not lose your Marriott Bonvoy points if you cancel an award reservation, provided you cancel within the hotel's specific cancellation window. Most properties require you to cancel at least 48 to 72 hours before arrival to receive a full refund of your points. Once you cancel via the Marriott website or app, the points are typically reinstated to your account almost instantly. However, if you cancel after the deadline (the "late cancellation" period), you will usually be charged a cash penalty equal to one night's room rate at the current market value, though your points will still be returned. In 2026, some highly-coveted "Peak Season" or "Resort" bookings may have even stricter non-refundable windows. If you miss your stay entirely (a "no-show"), you will likely lose the cash penalty equivalent, but your points should still be technically refundable by calling customer service, though the process is much more difficult once the check-in date has passed.