Plan cancellation fee

if you're trying to cancel and seeing something unexpected, discuss with adobe support. there are 2 ways to contact adobe support; chat and twitter (now x):

chat:
if you have or want to purchase a subscription, use a browser that allows popups and cookies
and click here, https://helpx.adobe.com/contact.html?rghtup=autoOpen
in the chat field (lower right), type AGENT
be patient, it can take quite a while to reach a human.

twitter/x:
tweet @AdobeCare

p.s. if you're contacted by anyone (via email or private message), it's much more likely to be a scammer than an adobe representative.

Moved to Account..... forum.

Simple. After the one-year anniversary, it is too late to cancel without penalty. You MUST cancel within the last month of your one-year automatically-renewable term in order to avoid being charged. This means that if your anniversary date is on December 15, you must cancel between November 15 and December 14 (or the work day before December 14, if that date falls on a Saturday or a Sunday) in order to avoid this charge. Otherwise, you will be charged 50% of the amount due for the remaining months of your one-year renewable term. This means that if you cancel on the exact anniversary date, you will be charged half of what you would have been paying for the entire next year minus the current month - $291.39 plus tax in the case of the Creative Cloud All Apps subscription, or (in your case) $115.39 plus tax for the single-app subscription. The cancellation will not occur immediately, but rather at the end of the membership month in which the early termination fee is deducted from a credit or debit account that you have on file. This is because by default, when you subscribed, the default subscription was a one-year membership paid monthly. The only other subscription options are a monthly subscription without term commitments and a one-year prepaid subscription. If you cancel either of the latter two memberships after the first 14 days of that term but before the term end date, then your payment for those two subscriptions becomes nonrefundable.

This is clearly stated in the Adobe membership agreement.