Payments are due when your billing cycle restarts. To check your payment:
- Sign in to your Udacity account
- Click the Account icon in the top right-hand corner of your Classroom
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Click Enrollments on the left-hand side

Month-to-month subscription,
If you purchased a regular month-to-month subscription, your first payment will be charged on the day of purchase. The next payments will be due monthly from the day you first enrolled (i.e, if you enrolled on January 1, your due dates will be the first of every month after that). Payments will stop once you either cancel or graduate from your Nanodegree program or single-paid course. For more info, click here.
Bundled subscription,
If you have a bundled subscription, your first payment will be charged on the day of purchase for the total # of months indicated in your bundle at a discounted price (unless you pre-ordered). If you either cancel or graduate from your Nanodegree programer single-paid course, you will not be charged past your last month in the bundle. If for some reason you need more time past your last bundle month, you will be charged for the next month at the original monthly price (without the bundle discount). As always, payments will stop once you either cancel or graduate from your Nanodegree program or a single-paid course. For more info, click here.