Uber Cash is a digital payment method within the Uber app that allows you to "pre-pay" for your rides and Uber Eats orders. The specific $5 Uber Cash amount is often a promotional reward or a benefit from the Uber One membership or a co-branded credit card. For example, many users receive a $5 credit if their "Uber One" order arrives later than the latest arrival estimate provided in the app. Additionally, some American Express cardholders receive monthly Uber Cash credits that can be used for rides or delivery. In 2026, you can also "earn" $5 in Uber Cash by choosing "No-Rush" delivery options or participating in specific marketing surveys. Once the $5 is in your account, it is automatically applied to your next transaction unless you toggle it off. It is a "non-refundable" credit that essentially acts as a gift card balance, helping Uber encourage brand loyalty by giving users a "head start" on their next purchase within the Uber ecosystem.