If you configure a poll so that its voting period includes dates outside your subscription term, the Summary tab of that poll will give you options:
- You can change the poll’s dates so that its voting period is within the term of your subscription
- You can renew your subscription term so that it includes the dates you need for that poll
So long as your poll's voting period does not extend past your subscription term, when the paid subscription ends, your Account will automatically be converted to a free account. You will still be able to unlock and view your poll's results, for example.