MPESA and Paypal entered into an agreement in 2017 that allows online transactions from MPESA to Paypal and vice versa. To top up your MPESA account with Paypal, follow these steps:

• Calculate how much KES you’ll need to convert to get the amount of USD you want in your PayPal account.
• Open your M-PESA account, then select “Lipa na M-PESA” and then “Pay Bill.”
• As the business number, enter 800088, and your phone number as the account number.