In the United States, you must reconcile your 2024 calendar year tax withholding and liability by filing federal and state tax returns in 2025. If you were present in the United States during any part of 2024 in any immigration status other than tourist (B visa or ESTA), there is at least one tax form you must complete. If your income does not meet the reporting threshold, it is possible that you may only need to file a tax statement instead of a full tax return. 

If you are employed in the United States, your employer will send you a statement of earnings, called a Form W-2, by the end of January that details your income and any taxes withheld during the previous year. If you receive benefits of a tax treaty for employment, scholarship or fellowship income, you will receive a Form 1042-S by mid-March that details your income and treaty benefits. You will need these documents to complete your tax forms. Be sure to keep copies of all your tax documents. When you are leaving Harvard, be sure that the Harvard Office of the Controller has your correct mailing address so that you will receive the necessary tax documents if you received funding from Harvard.