The security hold is how most car rentals work. You book online, pay the rental fee, show up at the counter and then a separate $200 to $500 gets blocked on your credit card for the duration of the trip. It is not a charge, technically. But that money is not available to you until the hold releases, and that can take up to 30 days after you return the car.
True no-deposit rentals are less common than the name suggests. Major chains like Hertz, Avis and Budget almost always place a hold, regardless of what their booking pages imply. The alternatives that genuinely skip the deposit tend to be car-sharing memberships (which require monthly fees) or specialized booking platforms that work directly with local suppliers offering prepaid, no-hold deals.
Abbycar is that kind of platform. We connect travelers with vetted car rental suppliers whose pricing is prepaid and whose deposit requirement is zero. No monthly membership, no credit check at the counter, and nothing blocked on your card beyond what you paid at booking.

