No. You can change your plan details at any time.
Upgrades take place immediately. Downgrades take place at the end of your current billing period.
Monthly subscriptions are billed in advance, so the change in plan type will go into effect on the last day of your current billing period. This allows you to gain full value from the plan type paid for the current month.
ShippingEasy does not auto-downgrade accounts based on shifts in volume.
For more information about your subscription options:
For more information about changing your plan: