The law enabling retailers in 40 U.S. states to charge up to 4 percent extra when consumers pay for goods and services with a credit card, was enacted on Sunday, January 27th, Reuters reports.
The fees are illegal in ten states including California, New York, and Texas.
It is up to individual businesses to decide whether or not the fee will be added, but businesses must disclose it to consumers.
To avoid the surcharge, you can pay with cash or debit cards. And when shopping online, you can use PayPal and other electronic payment services.
Read more at Reuters.