TaxFormFinder
Massachusetts Shareholder's Massachusetts Information
There are only 38 days left until tax day on April 16th! eFile your return online here 
, or request a six-month extension here .
, or request a six-month extension here .
Extracted from PDF file 2025-massachusetts-schedule-sk-1.pdf, last modified October 2025Shareholder's Massachusetts Information
CAUTION: This tax return must be filed electronically. Paper versions of this return will not be accepted. If you have questions about filing electronically, contact us at 617-887-6367. See https://www.mass.gov/info-details/dor-e-filing-and-paymentrequirements for further information about our electronic filing and payment requirements. FOR PRIVACY ACT NOTICE, SEE INSTRUCTIONS. Schedule SK-1 Shareholder’s Massachusetts Information . Complete one Schedule SK-1 for each shareholder . NAME OF SHAREHOLDER 2025 TAXPAYER IDENTIFICATION NUMBER ADDRESS CITY/TOWN/POST OFFICE STATE NAME OF S CORPORATION ZIP+4 FEDERAL IDENTIFICATION NUMBER (FID) ADDRESS CITY/TOWN/POST OFFICE STATE ZIP+4 A. Type of shareholder (fill in one only): Individual resident Individual nonresident Resident trust or estate Nonresident trust or estate Bank Ch 62 Exempt Organization Ch 63 Exempt Organization A1. Fill in if the shareholder is a nonresident of Massachusetts (see instructions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . nl y. te d. A2. If shareholder is a Disregarded Entity (DE)(see instructions), enter DE shareholder’s name: ______________________ TIN: ________________________ Enter entity type of DE shareholder: ______________________ B. Fill in if . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Final Amended O ac ce p C. Fill in if there was a sale, transfer or liquidation of any part of this shareholder interest during the tax year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n. e E- SHAREHOLDER’S DISTRIBUTIVE SHARE at io Fi le D. Fill in if the S Corporation participated in one or more installment sales transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . If filled in, indicate whether information has been communicated to the shareholder to calculate an addition to Massachusetts tax under MGL ch 62C, § 32A based on the following Internal Revenue Code (IRC) provisions (fill in all that apply): IRC § 453A IRC § 453(I)(2)(B) Massachusetts ordinary income or loss (from Schedule S, line 31) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Separately stated deductions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 Add lines 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 a . Taxes due to another jurisdiction (full-year residents and part-year residents only) . . . . . . . . . . . . . . . . . . . . 4a m tu r b . Total other credits (from “Credit Section”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4b or e ns w in ill fo r no 1 m tb If a loss, mark an X in box at left Adjusted Massachusetts net income or loss from rental real estate activity(ies) (from Schedule S, line 34) . . . . . 5 6 Adjusted Massachusetts net income or loss from other rental real estate activity(ies) (from Schedule S, line 37) . . 6 7 Interest from U .S . obligations (from Schedule S, line 39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8 Interest (5 .0%) from Massachusetts banks (from Schedule S, line 40) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9 Other interest and dividend income (from Schedule S, line 41) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 10 Non-Massachusetts state and municipal bond interest (from Schedule S, line 42) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 11 Royalty income (from Schedule S, line 43) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 12 Other income (from Schedule S, line 44) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 13 Short-term capital gains (from Schedule S, line 45) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 14 Short-term capital losses (from Schedule S, line 46) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 15 Gain on the sale, exchange or involuntary conversion of property used in a trade or business held for one year or less (from Schedule S, line 47) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Se e TI R s 16 -9 an d 21 Pa p -9 er fo r re 5 TAXPAYER IDENTIFICATION NUMBER 2025 SCHEDULE SK-1, PAGE 2 SHAREHOLDER’S DISTRIBUTIVE SHARE (cont’d) Loss on the sale, exchange or involuntary conversion of property used in a trade or business held for one year or less (from Schedule S, line 48) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 17 Net long-term capital gain or loss (from Schedule S, line 49) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 18 Net gain or loss under Schedule 1231 (from Schedule S, line 50) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 19 Other long-term gains and losses (from Schedule S, line 51) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 20 Long-term gains on collectibles (from Schedule S, line 52) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 21 Differences and adjustments (from Schedule S, line 53) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 22 Property distributions made to shareholder (from U .S . Form 1120S, Schedule K-1, line 16d) . . . . . . . . . . . . . . . 22 23 SHAREHOLDER’S BASIS INFORMATION a. Enter date of federal basis (12-31-1985 or later) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23a nl y. te d. 16 MM D D Y Y Y Y O ac ce p b. Number of shares owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23b n. Fi le c. Shareholder’s percentage of stock ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23c m or e m tu r fo r re Net federal adjustments a. Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26a Pa p -9 er b. Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26b d 21 Massachusetts basis at end of tax year a. Stock (add lines 24a and 25a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27a e TI R s 16 -9 an b. Indebtedness (add lines 24b and 25b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27b Se 27 in ill ns w Net Massachusetts adjustments a. Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25a b. Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25b 26 fo r b. Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24b 25 at io e tb Massachusetts basis at beginning of tax year a. Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24a no 24 E- d. Dollar value of basis as of the date in line 23a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23d TAXPAYER IDENTIFICATION NUMBER PASS-THROUGH ENTITY PAYMENT AND CREDIT INFORMATION Declaration election code: Withholding Composite Member self-file 2025 SCHEDULE SK-1, PAGE 3 Exempt PTE Non-profit 28 Withholding amount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 29 Estimated payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 30 Credit for amounts withheld by lower-tier entity(ies) Payer Identification number 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Credit for amounts of estimated payments made by lower-tier entity(ies) Payer Identification number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 nl y. te d. SHAREHOLDER’S SHARE OF CHAPTER 63D REFUNDABLE CREDIT Reporting of aggregate entity information: The electing pass-through entity should report its total qualified income as an aggregate amount derived from all resident or nonresident shareholders having qualified taxable income subject to the MGL ch 63D entity-level tax . See instructions . O le Total qualified income subject to 5.0% entity-level tax n. Fi a. Total of ordinary income or loss, interest, and dividend income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32a at io tb e E- b. Net gain or loss from the sale of capital assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32b -9 er fo r re m tu r ns 21 d an 16 -9 s R TI e Se m or e w e. Shareholder’s refundable credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32e fo r ill d. 100% of entity-level tax reported and paid by pass-through entity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32d in no c. Total income subject to 5 .0% entity-level tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32c Pa p 32 ac ce p If the shareholder is a trust, fill in if the trust is a pass-through entity 2025 SCHEDULE SK-1, PAGE 4 NAME OF SHAREHOLDER TAXPAYER IDENTIFICATION NUMBER CREDIT SECTION Lead Paint credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Economic Opportunity Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Economic Development Incentive Program . . .Certificate number . . . . . . . . (credits prior to November 20, 2024) Economic Development Incentive Program . . .Certificate number . . . . . . . . (credits authorized on or after November 20, 2024) Brownfields credit (see instructions) . . . . . . . . Certificate number . . . . . . . . Low-Income Housing credit . . . . . . . . . . . . . . . Certificate number . . . . . . . . nl y. te d. Historic Rehabilitation credit . . . . . . . . . . . . . . Certificate number . . . . . . . . O ac ce p Film Incentive credit (see instructions) . . . . . . . Certificate number . . . . . . . . le Medical Device credit . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . n. tb e E- Certified Housing Development credit . . . . . . . Certificate number . . . . . . . . at io Fi Ch 63D Refundable credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Veterans Hire credit . . . . . . . . . . . . . . . . . . . . . Certificate number fo r no m Life Sciences credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . w in ill Low-Income Housing Donation credit . . . . . . . Certificate number . . . . . . . . ns or e Dairy credit . . . . . . . . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . m tu r Conservation credit . . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . fo r re Community Investment credit . . . . . . . . . . . . . . Certificate number . . . . . . . . -9 er Angel Investor credit . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . 21 Pa p Apprentice credit . . . . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . Vacant Storefront credit . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . an d Cranberry Bog credit . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . 16 -9 Offshore Wind Facility Capital Investment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Offshore Wind Jobs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s National Guard Hiring . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . Se e TI R Disability Employment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 SCHEDULE SK-1, PAGE 5 NAME OF SHAREHOLDER TAXPAYER IDENTIFICATION NUMBER CREDIT SECTION (continued) Training Tax credit . . . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . Live Theater credit . . . . . . . . . . . . . . . . . . . . . . Certificate number . . . . . . . . Climatetech Tax Incentive credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Massachusetts Homeownership credit . . . . . . . Certificate number . . . . . . . . Commercial Conversion credit . . . . . . . . . . . . . Certificate number . . . . . . . . Se e TI R s 16 -9 n. at io an d 21 Pa p -9 er fo r re m tu r ns or e w in ill fo r no m tb e E- Fi le O ac ce p nl y. te d. TOTAL OTHER CREDITS. Enter this amount on line 4b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SK-1.
More about the Massachusetts Schedule SK-1 Corporate Income Tax TY 2025
We last updated the Shareholder's Massachusetts Information in March 2026, so this is the latest version of Schedule SK-1, fully updated for tax year 2025. You can download or print current or past-year PDFs of Schedule SK-1 directly from TaxFormFinder. You can print other Massachusetts tax forms here.
eFile your Massachusetts tax return now
eFiling is easier, faster, and safer than filling out paper tax forms. File your Massachusetts and Federal tax returns online with TurboTax in minutes. FREE for simple returns, with discounts available for TaxFormFinder users!
File Now with TurboTaxOther Massachusetts Corporate Income Tax Forms:
TaxFormFinder has an additional 126 Massachusetts income tax forms that you may need, plus all federal income tax forms.
| Form Code | Form Name |
|---|---|
| Schedule H Corp | Investment Tax Credit and Carryovers |
| Schedule NIR | Net Income Reconciliation (OBSOLETE) |
| Form 355 | Massachusetts Business or Manufacturing Corporation |
| Schedule A-2 | Intercompany Receivables (OBSOLETE) |
| Form 3 | Partnership Return |
View all 127 Massachusetts Income Tax Forms
Form Sources:
Massachusetts usually releases forms for the current tax year between January and April. We last updated Massachusetts Schedule SK-1 from the Department of Revenue in March 2026.
About the Corporate Income Tax
The IRS and most states require corporations to file an income tax return, with the exact filing requirements depending on the type of company.
Sole proprietorships or disregarded entities like LLCs are filed on Schedule C (or the state equivalent) of the owner's personal income tax return, flow-through entities like S Corporations or Partnerships are generally required to file an informational return equivilent to the IRS Form 1120S or Form 1065, and full corporations must file the equivalent of federal Form 1120 (and, unlike flow-through corporations, are often subject to a corporate tax liability).
Additional forms are available for a wide variety of specific entities and transactions including fiduciaries, nonprofits, and companies involved in other specific types of business.
Historical Past-Year Versions of Massachusetts Schedule SK-1
We have a total of fifteen past-year versions of Schedule SK-1 in the TaxFormFinder archives, including for the previous tax year. Download past year versions of this tax form as PDFs here:
TaxFormFinder Disclaimer:
While we do our best to keep our list of Massachusetts Income Tax Forms up to date and complete, we cannot be held liable for errors or omissions. Is the form on this page out-of-date or not working? Please let us know and we will fix it ASAP.