IRS Schedule M-2 and Minnesota Form M2 share a name but are entirely different filings. Schedule M-2 is a federal worksheet inside Form 1065 (partnerships) or Form 1120-S (S corporations) that reconciles owners’ equity accounts from the beginning of the tax year to the end. Minnesota Form M2 is the state’s fiduciary income tax return for estates and trusts. The two forms go to different agencies, follow different deadlines, and answer to different statutes. Treat them separately.
Schedule M-2 on Form 1065 (Partnerships)
On a partnership return, Schedule M-2 is titled “Analysis of Partners’ Capital Accounts.” It shows what moved those accounts during the year: contributions in, income allocated, distributions out. Reporting is on a tax-basis method, and the figures must tie to Item L of each partner’s Schedule K-1.
The schedule has seven working lines:
- Line 1, beginning balance. Equals the total of all partners’ beginning tax-basis capital from their K-1s. If it doesn’t match, attach an explanation.
- Line 2, capital contributed. Line 2a for cash; line 2b for the adjusted tax basis of contributed property, net of liabilities.
- Line 3, net income or loss. From the Analysis of Net Income (Loss) per Return, line 1, which generally matches Schedule M-1, line 9.
- Line 4, other increases. Any increase not on lines 2 or 3, itemized.
- Line 6, distributions. Cash on 6a (including marketable securities under Section 731(c)); property at adjusted tax basis on 6b.
- Line 7, other decreases. Any decrease not shown as a distribution, itemized.
- Line 9, ending balance. The result, which must tie to the ending capital on each K-1.
IRC Section 704(b) sits behind all of this. A partner’s share of income, loss, and deduction follows the partnership agreement only if the allocation has substantial economic effect; otherwise the IRS recharacterizes it based on the partner’s actual economic interest. The capital-account tracking on Schedule M-2 is the primary evidence that allocations are legitimate.
Who Can Skip It
A partnership can skip Schedules L, M-1, and M-2 if it meets all four of these conditions: total receipts under $250,000, total assets under $1 million at year-end, all K-1s filed with the return and furnished to partners by the due date, and the partnership is not required to file Schedule M-3.
Schedule M-2 on Form 1120-S (S Corporations)
On Form 1120-S, Schedule M-2 tracks a different ledger: the Accumulated Adjustments Account (AAA), Shareholders’ Undistributed Taxable Income Previously Taxed (PTI), Accumulated Earnings and Profits (AE&P), and the Other Adjustments Account (OAA). The columns exist because S corporation income is taxed at the shareholder level, and the corporation needs a running record to prove distributions aren’t taxed a second time.
The Accumulated Adjustments Account
The AAA starts at zero on the first day of the first S-election year and is adjusted at year-end in a set order. Increase it by taxable income (excluding tax-exempt income). Decrease it by deductible losses, nondeductible expenses other than those tied to tax-exempt income, and certain depletion amounts. Decrease it, but not below zero, by non-dividend property distributions. Finally, decrease it by any net negative adjustment, meaning the amount by which year-end decreases exceed year-end increases.
Any S corporation carrying AE&P from former C-corporation years must maintain the AAA. The IRS recommends every S corporation maintain it anyway, because a later merger or reorganization can force the calculation retroactively.
The Other Adjustments Account
The OAA holds tax-exempt income and the expenses related to that income, which are deliberately kept out of the AAA. The OAA matters when the corporation has AE&P, because distributions follow a fixed order: first from AAA, then PTI, then AE&P (taxed as dividends), then OAA, then as a non-taxable return of stock basis, and finally as capital gain if the distribution exceeds basis.
How Distributions Are Taxed
IRC Section 1368 governs. When an S corporation has no AE&P, a distribution reduces the shareholder’s stock basis and isn’t taxable until it exceeds basis, at which point the excess is capital gain. When the corporation does have AE&P from its C-corporation history, the portion of a distribution covered by the AAA is still tax-free up to basis, but the portion exceeding the AAA is a taxable dividend to the extent of the AE&P balance. Anything beyond that reverts to basis-then-gain treatment.
Federal Deadlines, Penalties, and Amendments
Forms 1065 and 1120-S are both due on the 15th day of the third month after the tax year ends. For calendar-year filers that is March 16, 2026, because March 15 falls on a Sunday. Form 7004 grants an automatic six-month extension, moving the deadline to September 15, 2026, but any tax owed must still be paid by the original due date.
Late or incomplete partnership returns carry a penalty of $255 per partner for each month or partial month the return is delinquent, capped at 12 months. The same $255-per-person penalty applies to late S-corporation returns under IRC Section 6699. Either penalty can be waived for reasonable cause.
To fix a previously filed Form 1065, use Form 1065-X, “Amended Return or Administrative Adjustment Request.” Paper filers mail it; electronic filers should check current IRS guidance on e-filing amendments. S corporations amend by filing a corrected Form 1120-S with box H(4) checked on page 1, attaching a statement that identifies each changed line, the corrected amount, and the reason.
Minnesota Form M2: Who Must File
Minnesota Form M2 is the fiduciary income tax return for estates and trusts. It has no connection to partnerships or S corporations. An estate or trust with $600 or more of gross income assignable to Minnesota must file Form M2, including resident trusts. The authority is Minnesota Statutes Section 289A.08, which requires fiduciaries to file when taxable net income exceeds the threshold set by the commissioner.
Have these ready before you start:
- A completed federal Form 1041. Form M2 draws from federal figures, so finish the federal return first.
- The estate or trust’s Federal Employer Identification Number, separate from any individual’s Social Security number.
- Beneficiary information: names, addresses, and Social Security numbers for every beneficiary receiving a distributive share.
- Income records for interest, dividends, business income, and capital gains attributable to Minnesota sources.
Completing Form M2
Transfer income figures from the federal Form 1041 to the matching lines on Form M2. Minnesota taxes estates and trusts at graduated rates that climb quickly across compressed brackets. For tax year 2025:
- 5.35% on the first $23,810 of taxable income
- 6.80% on income from $23,810 to $94,590
- 7.85% on income from $94,590 to $165,205
- 9.85% on income above $165,205
Reduce gross income by allowable deductions, including fiduciary fees, attorney costs, and tax-preparation expenses. If the estate or trust paid income tax to another state on the same income, claim the Credit for Taxes Paid to Another State to avoid double taxation. Watch how income is split between the entity and its beneficiaries: income distributed to a beneficiary is deductible on the fiduciary return and taxable on the beneficiary’s individual return.
Filing Form M2
Electronic filing is faster. Minnesota approves several software vendors for fiduciary returns, including Drake Tax, Lacerte, ProSeries Business, TaxAct, and UltraTax CS, among others. The Department of Revenue does not provide technical support for any vendor’s product, so direct software questions to the vendor.
Paper returns go to:
Minnesota Fiduciary Income Tax
Mail Station 1310
600 N. Robert St.
St. Paul, MN 55146-1310
If tax is due, pay electronically through the Department of Revenue’s website or by check. Check payments require a payment voucher generated at the department’s “Make a Payment” page by selecting “By Check or Money Order,” then mailed with the check to the address on the voucher. Paper filers should use certified mail and keep the receipt as proof of timely filing.
Minnesota Deadlines, Extensions, and Penalties
Calendar-year Form M2 is due April 15, 2026. Fiscal-year filers owe the return on the 15th day of the fourth month after their tax year ends. Short-year returns follow the same rule, due the 15th of the fourth month after the short year closes.
Minnesota grants an automatic six-month filing extension, but only if the full tax liability is paid by the original due date. If the IRS grants a federal extension for Form 1041, the state deadline matches the federal due date automatically. An extension payment must still reach the state by the regular April deadline to avoid penalties.
Missing the deadline triggers layered penalties under Minnesota Statutes Section 289A.60. A 6-percent penalty applies when fiduciary income tax is not paid within the time specified. If the return is filed late and the remaining tax is not remitted with the return, another 5 percent is added to the unpaid balance. Interest accrues on unpaid tax on top of both penalties.