Using a credit card to withdraw cash from an ATM is one of the most expensive financial mistakes you can make.
The Triple Hit
1. You pay a cash advance fee (typically 3% to 5% of the amount withdrawn).
2. The cash advance APR is almost always higher than your standard purchase APR.
3. There is no interest-free grace period. Interest accrues from the second the cash leaves the ATM.
The Solution
Never use a credit card for cash withdrawals. If you need cash urgently, a money transfer card (which moves cash from your credit card to your bank account at a lower rate) is a better alternative.