I'd imagine this has been asked and answered, but doing a search I come up empty:

I use my credit cards to pay my taxes online. Is there any way to overpay the taxes, thereby accruing extra miles/points, by having the overpayment refund go into one's bank account rather than simply being credited back to the credit card (thereby losing the extra miles/points)? I know of course that there is an extra fee for paying by credit card, but doing this might nevertheless be worth my while for reaching CC targets for hotel/airline status and perks.

Thanks for any help.