No!
Once you have been accepted into our Free for 501c3 program, we apply a coupon to your account. This coupon tells our system to give you a 100% discount on your subscription, but allows us to keep your subscription active.
If you get a warning that you are about to be upgraded to a new plan, there is no need to worry. No matter what plan you are on, and no matter how many horses you enter into your account, your subscription will remain free as long as you are a part of the Free for 501c3 program.