💡 It’s important to know that Sprintax Calculus and Sprintax Returns are two separate platforms, each serving a different purpose. Since IIE partners with Sprintax, both systems are used at different stages of the tax process.
👉 Sprintax Calculus (https://calculus.sprintax.com/) is used to collect your personal and payment information so that IIE can issue your Form 1042-S accurately.
This platform is not used to file your tax return.
You should not begin filing your tax return until all required tax documents, including the 1042-S, have been issued to you.
IIE typically makes the 1042-S available by mid-March. At that time, you will receive instructions on how to use Sprintax Returns to file your tax return.
👉 Sprintax Returns (https://www.sprintax.com/returns/) is the tax preparation software you may use to complete and file your tax documents. This includes:
Form 1040-NR (Federal tax return);
State tax return;
Form 8843;
FICA refund claim form;
W-7 Application for Individual Taxpayer Identification Number (ITIN);