Accidentally Set Up IRS Installment Plan After Full Payment via online payment platform—How to Cancel?

[wenheli98]

​I mistakenly selected the option to request an installment agreement for my federal tax payment, but I have already paid the full amount through an online payment platform. How can I cancel the unnecessary installment agreement to ensure my account reflects the correct status and avoid any potential fees?​

[rjs]

Duplicate question. Please post your question only once.