Brett asked in Business & FinanceCredit · 4 years ago

How does the gas pump know how much is on a prepaid card?

I used a prepaid card at the pump and I didn t expect it to stop at the amount the prepaid card had on it. How does it know and do all gas stations have this technology?

4 Answers

    Lv 7
    4 years ago

    The same way it (or any other merchant) knows when a person has reached their credit card or gift card limit. The magnetic strip carries all kinds of information, and balances are one of them.

  • 4 years ago

    The magnetic strip on the back keeps a running total of how much was loaded and how much was spent and what the new available total is. All transaction terminals have this capability.

  • 4 years ago

    Yes all gas stations have that technology, the strip on the back holds all of that info

  • 4 years ago

    Yeah, so you can't steal.

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