Cash App Invalid Card Number Error (Easy Fix – Explained!)

Yesterday I assisted with my mom’s Cash App account setup, but the form kept saying her bank card number was invalid when it was not! All the info we were inputting was correct, and she’s never had a Cash App before. It is a regular TD bank debit card.

So, why does the Cash App say invalid card number?

I dug deep and found the answer. Let’s get into it.

Verify and double-check the card’s numbers, the expiration date, and CVV.

Cash App Invalid Card Number indicates that the card isn’t valid and the bank which issued the card has blocked it. If it is not so from the bank end, it is a sign of an issue with the data provided for the card. Verify and double-check the card’s numbers, the expiration date, and CVV.

What Does Cash App “Invalid Card Number” Mean?

Cash App Invalid Card Number shows that the card is no longer valid and that the bank that issued it has blocked it. If it is not the case from the bank’s end, it indicates a problem with the card’s data. Check the name on the card, expiration date, card numbers, and CVV for accuracy.

Why Cash App Keeps Saying Invalid Card Number

You may be using an expired card, or your card is not supported by Cash App, among other reasons.

Let’s check why Cash App continues denying your card or says your card number is invalid.

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There are reasons why Cash App continues denying your card or says your card number is invalid.

Wrong Card details

First, double-check that you have entered the valid card number. Many customers obtain an invalid card number error because they input incorrect card details.

You should input the card information more carefully and check for inaccuracies.

Here is a few card information that you may be putting incorrectly into Cash App.

Card Holder Name

The next data field displayed on a payment card is the card holder’s name. Normally, the name of the card recipient is printed on the card.

If you input your username or something else in the name section of the Cash App while attaching your card, you will receive an invalid card error.

Make sure you input the exact name that appears on your card.

Card Number

Most people enter an incorrect card number when registering or adding it to their account. Since the card number has a combination of 16 digits, the odds are high that you may enter a digit incorrectly while typing.

CVV Number

You might also input the wrong CVV number. CVV (Credit Verification Value) is a standard banking security measure.

It is three or four digits on the back of a credit or debit card. It is used to prevent illicit transfers of information from point-of-sale devices or online merchants and prevents scammers from counterfeiting and reselling your card.

Expiry Date

The expiry date is another card data you may have entered incorrectly in Cash App.

The expiration date is written on the card in XX/XX (month/year) format. A card can usually be used until the final day of the month it expires.

For example, a 12/21 card is good until December 31, 2021.

So, enter your card’s expiration date in the cash app correctly.

The Card Is Expired

Whether you’re having difficulties attaching your debit card, check if it’s expired.

Be certain that you are not using an expired card.

The expiry date, as previously indicated, may be located on the back of the Card.

Read More: How to Delete Cash App History. Can you delete your transaction history? We discuss canceling payments in this guide.

Cash App does not support your Card

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Cash App supports debit and credit cards from Visa, MasterCard, American Express, and Discover.

Cash App supports debit and credit cards from Visa, MasterCard, American Express, and Discover. Most prepaid cards are also supported, but depositing these cards does not work.

However, ATM cards, PayPal, and business debit cards are not currently supported right now. If you use one unsupported card, you may get an invalid card message.

Read our related article, Does Cash App Accept American Express? Yes! Here’s what you need to know about using your American Express with Cash App.

Your Card has not been activated.

If you recently ordered a new card and are attempting to add it to the Cash App, ensure it has been activated.

You will encounter the Card Invalid error code if you add an inactive card to Cash App or anywhere else.

So, before you start using your card, make sure it’s activated. If you are experiencing trouble activating your card, contact your bank.

Linked wrong Bank Account

Another reason Cash App may have denied or refused your card is that you have not linked the debit card’s bank account associated with it.

Many Cash App customers who have had similar problems with their Card on Cash App have mentioned that joining the bank account connected with the card first on the Cash App allowed them to link their debit card.

So, this may work for you. First, link your bank account and debit card from the same bank.

Like many other users, it may work for you. If it doesn’t, try the other methods indicated in this post.

Unauthorized Card

Cash App may also deny your card if it has not been pre-approved for a certain sort of internet transaction.

Some cards, for example, can only be used for specific purchases, such as healthcare. 

In that case, you will have to contact your bank and ask them for assistance.

You are using an old version of Cash App

“Invalid card number” error message may appear if you run the outdated Cash App app on your smartphone. So make sure to update the Cash App on your iPhone or Android device.

Read More: Cash App Error Message. If you’re receiving error messages, here are common Cash App problems and solutions!

What should I do if the Cash App reports an invalid card number?

You can contact your bank’s customer support.

If the Cash App is saying invalid card number, then check all the details of your Card that you have entered, such as debit card number, CVV number, expiry date, and the cardholder’s name. Contact your bank or Cash App support if your card is still disabled.

Enter the right information

As previously said, input the correct Card data, such as your card number, CVV number, card expiration date, and cardholder name.

Get the latest version

If you’re not using the latest version of the Cash App on your phone, you may encounter problems while trying to link your card to the app.

Clear the Cash App Cache and Data

Our cellphones capture and save data for the applications we use regularly. This information aids app loading and performance.

This data may accumulate over time. And, rather than giving advantages, it has the potential to produce problems. This data is referred to as a cache.

Clearing the app’s cache will resolve the majority of its issues.

To clean the Cash App’s cache, navigate your device’s settings and choose Applications Cash App clear cache.

Please remember that these options will vary significantly depending on the device.

Check if Cash App supports your card.

As aforementioned, Cash App only accepts Visa, American Express, Mastercard, and Discover cards. Check to see if your card fits into one of those categories.

Contact with your bank

If you’ve completed the whole procedure and the Cash App still says Invalid card number while connecting, go further by contacting your bank’s customer support.

Contact Cash App

If you get in touch with your bank and everything is all right from their end, Cash App still failed to link your card; the only means to fix that is to contact Cash App support.

You can contact Cash App support by official email or via theTwitter support page.

You may get in touch with Cash App support via official email or the Twitter support page.

To talk with a Cash App Support person, please contact via your Cash App,, or our customer care number.

If you are unable to obtain assistance via Cash App or, please get in touch with them at 1 (800) 969-1940.

In addition, you may reach us by mail at the following address:

Cash App

1455 Market Street Suite 600

San Francisco, CA 94103

Also, please keep in mind that the Cash App team will never ask you to transmit money or provide your PIN or sign-in code.

Read More: Cash App Failing for My Protection. Cash App will deny payments for a variety of reasons. Here’s why your transaction may have failed for your protection.


Why my Debit card saying invalid card number

An invalid card number means that the card is likely closed at the card issuing bank and is effectively an invalid card. If the cardholder says that the card is not closed, then the cardholder should contact the card issuing bank to resolve the issue.

Why Cash App won’t accept my debit card?

A common problem with debit cards is that they don’t work with the Cash App. Generally, the Cash App just supports bank cards from Visa, American Express, Discover, and MasterCard. Other possible reasons could be an invalid bank card number, questionable transaction history, unauthorized card, etc.