Not sure what you mean. If you already e-filed, you cannot cancel it. Once you e-file if the IRS accepts the return, there is no getting it back or cancelling. If you did NOT e-file, then just do not file it if you do not want to. E-filing is closed permanently now for 2024 returns, so the only way to file is by mail. If you do not print, sign and date the return in ink, and take it to a mailbox in an envelope it will not be filed.
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