Yes, I tap all the time (with my card, not with my phone) and every time I do I'll get a notification from my banking app letting me know a payment has gone out and to who, usually within seconds of paying. In order for that to happen, the card reader must be communicating with my bank.
joshi38 t1_j6h0mq7 wrote
Reply to comment by scorch07 in ELI5: Why are contactless payment methods faster than inserting the chip? by jimmysofat6864
Yes, I tap all the time (with my card, not with my phone) and every time I do I'll get a notification from my banking app letting me know a payment has gone out and to who, usually within seconds of paying. In order for that to happen, the card reader must be communicating with my bank.