No, a U.S. phone number is not strictly required just to create a Cash App account, but it’s highly recommended and often needed later for full use and verification. If you already meet all the other requirements—like being in the United States, having a valid U.S. bank account or debit card, and confirming your identity—then having a U.S. phone number makes the whole process much smoother and faster.

How Cash App uses your phone number

Cash App uses your phone number as one way to verify who you are and to send you one-time security codes for logging in. It also uses the number to link your account for sending and receiving money. While you can sign up with an email instead, many features—like adding payment methods, verifying your identity, or receiving notifications about transfers—are easier when you use a U.S. phone number that can receive text messages (SMS).

If you do not have a U.S. phone number yet

• You can start the registration using your email address. Cash App will send you verification codes there.
• Some users outside the U.S. cannot fully use the app. As of now, Cash App officially works in the United States and the United Kingdom. Residents must register from one of these countries with a matching address, bank account, and SIM card.
• If you try to log in from overseas or using a foreign SIM, the verification message may not arrive, or the account could temporarily lock.

If you already meet all other requirements

When someone already lives in the U.S., has a U.S. bank account with a debit card, a Social Security Number (SSN) or ITIN for verification, and a U.S. residential address, then it’s best to register Cash App with a U.S. phone number. Major carriers like T-Mobile, AT&T, or Verizon work fine. It allows:

• Instant verification: You’ll receive codes faster and face fewer login issues.
• Smoother linking with bank accounts: The app may ask for a phone number that matches your U.S. billing profile.
• Easier customer support: Cash App staff can locate your account by phone number if there’s any problem.

In short

You can technically start with an email, but the moment you’re living in the U.S. or using any U.S. financial service, having a local phone number becomes almost essential. It helps Cash App trust your identity, prevents freezes when signing in from new locations, and makes every verification step more reliable. So even if it’s not a firm rule, in practice, yes—a U.S. phone number is strongly advised for a stable Cash App experience.