Schedule U-ST: Member’s Separate Computation of Tax (2025)
Massachusetts · Massachusetts DOR · Used for tax years 2025
Schedule U-ST computes a unitary group member’s separate Massachusetts tax. It reports the member’s income, losses, deductions, income and non-income measures of excise, credits, and net tax liability.
Who files this form
Schedule U-ST is the Member’s Separate Computation of Tax for a corporate member. It asks for the member’s information and the name and federal identification number of the principal reporting corporation.
The form lists these tax types: financial institution, business corporation, and insurance mutual holding company. It does not provide detailed rules for deciding who must file.
What you'll need
Have the information and applicable schedules used by the form ready:
- Member information: name, federal identification number, PBA code, address, tax type, and taxable period.
- Principal reporting corporation information: name and federal identification number.
- Business records: Massachusetts and worldwide employee counts, total assets per year-end books, and applicable taxable property or net worth amounts.
- Schedule U-MSI: lines 31 and 33 for combined capital and section 1231 gains or losses.
- Schedule U-MTI: lines 27 through 29 for other Massachusetts income and gains or losses.
- Loss information: prior-year section 1231 losses not recaptured, the member’s own net operating loss (NOL) deduction, and any shared NOL deduction.
- Schedule U-IC: lines 11 through 13 for credits and corporate excise withheld.
- Credit Manager Schedule: sections 2 and 4 for refundable credits.
How to file
File electronically. The form states that paper returns will not be accepted.
For questions about electronic filing, call 617-887-6367. See the Massachusetts DOR electronic filing and payment requirements for further information.
Common mistakes
- Sending a paper return: The form warns that this return must be filed electronically. Paper versions will not be accepted.
Questions people ask
What tax period does this version cover?
The form is labeled for calendar year 2025 or a taxable period beginning in 2025. It includes spaces for the beginning and ending dates.
When should the digital asset box be filled in?
Fill it in if, at any time during the tax year, the corporation received a digital asset as a reward, award, or payment for property or services, or sold, exchanged, or otherwise disposed of a digital asset or a financial interest in one.
What if the member’s fiscal year differs from the group’s tax year?
Check the box on line 7.
Where are the member’s own and shared NOL deductions entered?
Enter the member’s own NOL deduction from current-year income on line 25. Enter the deduction for shared NOL from current-year income on line 27.