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Don’t worry! Your only obligation is to file; if you make a mistake, you will be notified. A mistake in your filing will not impact your immigration status in any way. Do your best, keep copies, and submit on time!
I missed the tax deadline. What should I do?
Here is a helpful article that discusses what you can do if you missed the deadline: https://blog.sprintax.com/missed-us-tax-return-deadline/