https://community.squareup.com/t5/Payments-Troubleshooting/my-square-is-not-taking-mastercard/m-p/258458#M16232 <P>my square is not taking mastercard</P><P>&nbsp;</P><P>accepts all others. these are manual entries</P><P>&nbsp;</P> Sat, 20 Sep 2025 12:06:30 GMT rosfouin 2025-09-20T12:06:30Z https://community.squareup.com/t5/Payments-Troubleshooting/my-square-is-not-taking-mastercard/m-p/258458#M16232 <P>my square is not taking mastercard</P><P>&nbsp;</P><P>accepts all others. these are manual entries</P><P>&nbsp;</P> Sat, 20 Sep 2025 12:06:30 GMT https://community.squareup.com/t5/Payments-Troubleshooting/my-square-is-not-taking-mastercard/m-p/258458#M16232 rosfouin 2025-09-20T12:06:30Z https://community.squareup.com/t5/Payments-Troubleshooting/my-square-is-not-taking-mastercard/m-p/258623#M16233 <P>Hi <a href="https://community.squareup.com/t5/user/viewprofilepage/user-id/361564">@rosfouin</a>. Is it just for one customer where it's not accepting? Or is it every customer trying to use Mastercard? If it's just one customer, I'd have them reach out to Mastercard and make sure there isn't a security threshold on the card. Hopefully that helps but please let me know if it's multiple customers where you're seeing this happen.</P> Sat, 27 Mar 2021 16:31:38 GMT https://community.squareup.com/t5/Payments-Troubleshooting/my-square-is-not-taking-mastercard/m-p/258623#M16233 nika 2021-03-27T16:31:38Z