MPX No Longer Earns 5x with Amex Platinum

Multiple reports are coming in on Flyertalk and Reddit that the MPX app is no longer earning 5x when paying with the Amex Platinum card. The change happened on February 10th or 11th.

For some time, the MPX app was earning 5x with the Amex Platinum personal card since it coded as airlines which earn 5x on that card. This was especially terrific if you also have the Platinum Business card which gets 50% back on flights giving an easy $.02 value on each mile.

If I have my history right, the timeline went as follows: from beginning of time until December 2016 MPX coded as airline for travel points and for airline credit. The airline credit part died end of 2016. I think it may have briefly stopped coding as airfare for category points purposes as well. At some later date the category coding part came back to airfare, though the airline credit part never returned.

It only really started mattering in October 2016 when personal Platinum cards began earning 5x on airfare. And around the same time business Platinum cards got a 50% rebate, meaning you could earn up to 10% value at just about anywhere, including places like Amazon, Walmart, Best Buy, and so many more. To boot, you’d get some bonus United miles from the app.

I’m not sure exactly when people caught onto this hack, but for some months this has been going around by word of mouth. Since February 10th or 11th something changed and MPX purchases are showing up as earning 1x. This Flyertalk data point is especially telling since their airfare purchases are showing properly as 5x while MPX is not, indicating this isn’t merely a delay. Seems like it still codes as airfare, just Amex specifically excluded it from earning 5x.

Curious if MPX’s overall sales will go down due to the change. RIP MPX/Platinum hack.

View Comments (38)