As a foreign national with U.S. income, you have certain tax obligations. Sprintax Calculus is here to help.
Sprintax Calculus is a web-based platform that gathers the immigration details necessary to determine your U.S. tax residency status and tax treaty eligibility.
With Calculus, international employees and students can expect accurate taxation as soon as their profile is completed and approved by the International Tax Office.
New employees
- New employees will receive an email notification from CUIntlTax-noreplay @ sprintax.com asking them to complete their Sprintax profile within 14 days of their start date.
- Please check junk mail folders and then reach out to intltax@cu.edu if you haven’t received your invitation within 14 days of your start date. Please register only through an email link from CUIntltax-noreply @ sprintax.com and not directly from the Sprintax website.
- Answer Sprintax Calculus questions about electronic consent, your current immigration status and history of U.S. presence, and upload immigration related documents through secure document exchange.
- Review and e-sign tax forms generated by Calculus after your U.S. tax residency status and tax treaty eligibility have been determined.
- International tax specialists will be available at intltax@cu.edu or during weekly Zoom office hours to answer any questions and provide support.
Current employees
- During your time at CU, your tax residency status and other personal details may change. Please keep your Sprintax Calculus profile updated throughout the year when any of the following occur:
- your immigration status changes.
- the end date on your immigration document changes.
- you suspect you have become a U.S. tax resident.
- you have taken steps to obtain lawful permanent residency (green card) in the U.S.
- you have a change of address.
- International employees will receive annual emails from CUIntlTax-noreply @ Sprintax.com to update their information and documentation as needed.
- International tax specialists will be available at intltax@cu.edu or during weekly Zoom office hours to answer any questions and provide support.
Students
- International students receiving non-qualified scholarships for the first time will receive an email notification from CUIntlTax-noreply @ Sprintax.com inviting them to complete their Sprintax profile.
- After answering questions about electronic consent, your current immigration status and history of presence in the U.S., and uploading your immigration related documents through a secure document exchange, Sprintax Calculus will prepare the relevant tax forms for your e-signature.
- International tax specialists will be available at intltax@cu.edu or during weekly Zoom office hours to answer any questions and provide support.
Guides, videos and FAQs
Sprintax Calculus advantages during U.S. tax season
- Details you provide in Sprintax Calculus will be automatically populated in Sprintax Returns, which will lessen stress and possibility of errors around U.S. tax filing time.
- Form 1042-S will be accessible online (with the recipient’s consent), which will reduce delays caused by mailing and eliminate the need for reissuing lost forms.