You can change your subscription plan at any time:
Visit the Manage Sub page while logged in with your Discord account.
Scroll down past your current account information to the list of available plans. You’ll see tab toggles for Yearly and Monthly Billing, and a description of the other plans.
Click the “Upgrade”, “Downgrade” or “Change Commitment” button beneath the plan you’d like to change to.
If you’re upgrading your plan, you’ll have the option to make the change effective immediately. You’ll receive a prorated discount on your new plan based on the unused portion of your current plan. You can also choose to have your plan upgrade when your subscription would normally renew instead.
If you’re downgrading your plan, the change will be effective at the end of your current billing period.
The website considers all changes from a yearly plan to a monthly plan as downgrades. It will only let you make these changes at the end of the current billing period. If you’d like to change from a yearly plan to a higher-tier monthly plan (such as from a yearly Basic Plan to a monthly Standard Plan), please contact support for assistance.