You'll be able to add or remove teammates at any time, even before changing your subscription. Once you have updated the people in your team, we ask that you correct your subscription to match your current usage (we'll remind you if you are over your seat limit). Our subscription offerings increase in increments of 5 users when total users are less than or equal to 30; increments of 10 when total users are between 30 and 100; increments of 25 when total users are between 100 and 500; and increments of 50 when total users are more than 500. When you update your subscription, the change will take effect immediately, and a prorated charge or credit will be applied to your account.