Activating and using Uber Cash in 2026 is done entirely through the Wallet or Account section of the Uber app. To use it, you first need to "Add Funds" by purchasing a specific amount (like $25, $50, or $100) using your linked credit card, debit card, or Venmo; often, purchasing in bulk provides a small discount (e.g., pay $95 for $100 in credit). Once the balance is in your account, it is "activated" for use. When you go to book a ride or an Uber Eats order, tap on the Payment Method bar above the "Confirm" button and toggle the Uber Cash switch to "ON." This tells the app to deduct the cost from your pre-paid balance first. If your ride cost exceeds your Uber Cash balance, the app will automatically charge the remaining difference to your secondary payment method. You can also set up "Auto-Refill," which automatically tops up your Uber Cash whenever the balance drops below $10, ensuring you always have credit available for your daily commutes or food deliveries.