Google ADWORDS program

If I set my budget with Google's Adwords program at $1.00 per day, could I possibly be billed for more at the end of the billing period? I read through after "almost" signing up, but then quit after reading where it says your click through rate may go 20% higher than your minimum budget.
But Google Adwords won't charge more than 30 times your minimum allowed budget. What is up with that? I wanted to try it for a month & test it out, choosing $1.00 per day.
I did not want to end up having to pay (possibly) $900 for that chosen month's worth of adwords and have no sales. Anyone have any feedback?

Happy Holidays & Kwanzaa to all

Dinrock

Well, paying 1.00 per day should only have you at about 30.00 by the end of the month. If you go over 20% then you would be at 36.00, a far cry from 900.00.

Your bidding shows where you end up, so if you only have a daily max of 1.00 and your bid is .10 cents but your competitors are bidding 10.00 and .80 cents, your add will most certainly be stuck on the side bar and you want to be as close to the top as possible.

Just a few thoughts....

Tiffany:
Ultra-fast response is mucho appreciated. Well, like anything, when you "agree to terms" sign up & give away your CC# for a service, it's best to be safe than sorry.
I never know how some of these services work unless I read & re-read all the term & the Egyptian hyeroglyphics composed as to the way they work. I appreciate your feedback and thanks again...taken to heart!

Sincerely,
Dn

You can always pause your ad campaign if you find that its starting to get too close to your budget.