How does Pennsylvania tax an investment partnership and its corporate partner, and when does it impute 100 percent apportionment?

Two taxes run through the same partnership

The structure is a Delaware LLC taxed as a partnership, the operating partnership, that holds an investment management group's assets through lower-tier LLCs and LPs: real estate in several states (Pennsylvania among them), loans secured by real estate, interests in investment funds, and a few wholly owned taxable subsidiaries. Its partners are the REIT partner (about 90 percent), the management corporation, a C corporation that manages the group (about 5 percent), and the executive partnership, an upper tier through which senior executives hold the rest. In the year of sale its receipts are about $400 million of rents, interest, fund distributions and management-related income, and it sells a lower-tier operating platform, held through an LLC, for a gain of about $900 million.

Pennsylvania does not tax the operating partnership on that income; its partners are taxed on their shares whether or not distributed (Pennsylvania Department of Revenue, Personal Income Tax Guide, Pass Through Entities). A nonresident individual in the executive partnership is reached through the personal income tax, Article III of the Tax Reform Code of 1971. The management corporation is reached through the corporate net income tax, Article IV. The two articles do not share a vocabulary, and the same dollar of interest can be outside the tax for one partner and apportionable business income for the other.

The personal income tax recognizes eight classes: compensation; interest; dividends; net profits from the operation of a business, profession or farm; net gains from the disposition of property; net gains from rents, royalties, patents and copyrights; income from estates or trusts; and gambling and lottery winnings. "A loss in one class of income may not be offset against income in another class" (Personal Income Tax Guide, Brief Overview and Filing Requirements). The corporate net income tax has no classes. It starts from federal taxable income with Pennsylvania additions and subtractions and divides the result into business income, which is apportioned, and nonbusiness income, which is allocated (Instructions for Form RCT-101, REV-1200, 2025).

Business income for the corporate partner

The statute defines business income as "income arising from transactions and activity" "in the regular course of the taxpayer's trade or business," and as including "income from tangible and intangible property if either" "the acquisition, the management or the disposition of the property constitutes an integral part" of the taxpayer's regular trade or business operations; "The term includes all income which is apportionable under the Constitution of the United States" (Tax Reform Code section 401(3)2.(a)(1)(A), 72 P.S. section 7401(3)2.(a)(1)(A), as the Department quotes it in its 2024 proposed rulemaking, IRRC No. 3402). Nonbusiness income is "all income other than business income," and a taxpayer allocating any of it completes Form REV-934, Schedule of Nonbusiness Income (REV-1200, 2025). The last sentence, added by Act 23 of 2001 according to the same preamble, carries the weight: income a state may constitutionally apportion is business income in Pennsylvania, whatever the transactional and functional tests leave out.

The constitutional line is the unitary business principle. An investment is apportionable where the investee is part of the taxpayer's unitary business or the asset itself serves that business, and "operational function" is not a separate test: "The concept of operational function simply recognizes that an asset can be a part of a taxpayer's unitary business even if what we may term a 'unitary relationship' does not exist between the 'payor and payee,'" and the Court's earlier references to it "were not intended to modify the unitary business principle by adding a new ground for apportionment" (MeadWestvaco Corp. v. Illinois Department of Revenue, 553 U.S. 16 (2008)). The Department's 2024 proposal would have applied the unitary business principle "to the fullest extent allowed by the U.S. Constitution" and, in its examples, treated interest on working capital as business income and interest on long-term securities held solely as an investment as nonbusiness income. The Department withdrew the proposal on May 27, 2026 (IRRC No. 3402), so it is not law and shows only how the Department read the statute in 2024.

Applied to the operating partnership, the functional test does most of the work. A business whose trade is acquiring, managing and selling real estate, loans and fund interests earns its interest, dividends, rents and gains in the regular course of that trade, and the disposition of a lower-tier platform is the kind of transaction the business exists to make. The contrast is the manufacturer with idle cash: its interest on a bank deposit beyond working capital may be nonbusiness income allocated to its commercial domicile, because investing is not its business. For the management corporation the constitutional sentence closes the remaining gap. A corporation that manages the group whose partnership it owns is part of the same unitary business on almost any view of the facts, so its distributive share, the gain included, is apportionable. A nonbusiness claim on that share has little room; even a corporate partner with no connection to the partnership's business must show the absence of unity, not merely label the income as investment income.

How the corporate partner's sales factor is built

Pennsylvania apportions business income by a single sales factor, and it puts the partnership's receipts into the corporate partner's factor. "A corporation which owns an interest in a partnership shall include the partnership's gross receipts" in the denominator of its sales factor to the extent of its ownership interest, and "the corporation's share of the partnership's gross receipts sourced to Pennsylvania" goes in the numerator (REV-1200, 2025, Sales Factor). The amounts go on the line of Form RCT-106 headed "Partner's Share of Sales from Partnerships" (RCT-106, revised 03-24). This is a flow-up rule: the partnership's receipts factor is combined with the corporate partner's own, and the instructions state no unitary condition for doing so.

The partnership supplies the figures on Schedule H-Corp, Corporate Partner Apportioned Business Income (Loss). The schedule reports the partnership's gross receipts inside Pennsylvania and everywhere; the corporate partner multiplies them by its ownership percentage; and the schedule's own sales lines include "Partner's share of sales from partnerships," so a lower tier's receipts reach the operating partnership's schedule and, through it, the management corporation's return (PA-20S/PA-65 Schedule H-Corp, 2025). Each tier therefore needs dollar receipts by state from the tier below. A lower-tier statement that reports a percentage, or reports that everything is in one state, cannot be carried to the next schedule.

Two exclusions shape an investment partnership's factor. The statute defines sales as all gross receipts not allocated "other than dividends received, interest on United States, state or political subdivision obligations and gross receipts heretofore or hereafter received from the sale, redemption, maturity or exchange of securities, except those held by the taxpayer primarily for sale to customers in the ordinary course of its trade or business" (72 P.S. section 7401(3)2.(a)(1)(E)); the instructions restate the exclusion as "Dividends and income from U.S. securities and receipts from sales of securities (unless a securities dealer)" (Schedule H-Corp, 2025; REV-1200, 2025), and the excluded receipts drop out of both numerator and denominator. Interest other than interest on federal, state or political subdivision obligations, together with rents and royalties, stays in. The operating partnership's dividends from its taxable subsidiaries drop out; its rents and loan interest stay in; and its management-related receipts stay in under the general sourcing rules, which the library's articles on cost of performance and market sourcing cover. Whether the gross proceeds of the platform sale belong in the factor is not answered by the instructions: the RCT-106 line reads "Gross Receipts from the Sale of Other Business Assets (except securities, unless you are a securities dealer)," and neither the form nor the instructions says whether an interest in a lower-tier LLC is a security for that purpose. A receipts figure of that size would change the denominator for every corporate partner, so the treatment chosen belongs in a written position before the schedule issues.

Withholding: two bases, two rates

Nonresident withholding under the personal income tax applies to "nonresident individuals, nonresident estates, or nonresident trusts," on each owner's expected share of distributable Pennsylvania-source income, under Act 22 of 1991 (Personal Income Tax Guide, Pass Through Entities). The base is the total of lines 1 through 5 and line 10 of each nonresident schedule, at 3.07 percent: business income from operations, net gains from the disposition of property, net rents and royalties, estate or trust income, gambling winnings, and the Pennsylvania-apportioned share of guaranteed payments for services (2025 Instructions for PA-20S/PA-65 Schedule NW; PA-20S/PA-65 Schedule NRK-1, 2025). The schedule instructions add that "entities should not withhold for income from intangibles such as interest, dividends or sale of stock," and that an entity "MAY NOT withhold Pennsylvania personal income tax for another partnership, S corporation, or limited liability company."

"Nonresidents are not subject to Pennsylvania tax on ordinary interest and dividends from investments," or on gains from intangibles, except income "derived from sources within Pennsylvania" "when employed in the operation of a business, profession, or farm" (Personal Income Tax Guide, Brief Overview and Filing Requirements). And under the personal income tax, investing is not a business: investing or trading does not become one "solely because of the volume, regularity, and continuity of transactions," and income from assets "held for long-term investment purposes" is excluded from business income (Personal Income Tax Guide, Net Income (Loss) from the Operation of a Business, Profession or Farm). Held as investments, the operating partnership's loan interest and dividends land in the interest and dividend classes, where a nonresident is not taxed, even though the same receipts are apportionable business income to the management corporation. A partnership interest is an intangible, and "Nonresidents are not taxed on the gain from the sale of intangibles" (Personal Income Tax Guide, Pass Through Entities, citing Personal Income Tax Bulletin 2005-02); whether a lower-tier interest is "employed in" a Pennsylvania business, as distinct from held as an investment, is a fact question the Guide does not resolve for a partnership that also earns management income. Pennsylvania rents and gains on Pennsylvania real property stay in the base.

In the structure, the operating partnership does not withhold personal income tax for the executive partnership. It issues the executive partnership both an RK-1 and an NRK-1, as it must for entity owners, and the executive partnership withholds for its own nonresident individuals on the Pennsylvania-source lines it receives. Nonresident owners may instead join a nonresident consolidated return, Pennsylvania's composite return, Form PA-40 NRC (Personal Income Tax Guide, Pass Through Entities).

The corporate partner sits under a different regime. "Partnerships are required to withhold corporate net income tax for nonfiling corporate partners," meaning corporate partners with no RCT-101 on record; the Department cross-matches K-1s, the partner directory and Form PA-65 Corp, and it issues letters naming nonfiling partners (Department of Revenue, PA-65 Corp, Directory of Corporate Partners). The computation is Schedule CP: the corporate partner's federal K-1 items on lines 1 through 12, interest, dividends and capital gains among them, are totaled, multiplied by the Schedule H-Corp percentage, set to zero if the result is a loss, and multiplied by the corporate rate, "0.0799" on the 2025 schedule (PA-20S/PA-65 Schedule CP, 2025). The Department's PA-65 Corp page describes the base as the apportioned share of positive federal income, not reduced by losses or expenses, while the 2025 schedule totals all twelve lines and permits adjustment for expenses or deductions; the schedule is the computation the Department processes. A Schedule CP "is not required for compliant partners who file the RCT-101," and a corporate partner claims what was withheld on its RCT-101, Section D, line 2 (PA-20S/PA-65 Schedule CP, 2025; REV-1200, 2025). The corporate rate is 7.99 percent for 2025 and 7.49 percent for 2026, falling by half a point a year to 4.99 percent for 2031 and after (Department of Revenue, Corporate Net Income Tax).

The withholding base is therefore not one number: it excludes interest, dividends and intangible gains for a nonresident individual and includes them for a nonfiling corporate partner. Tiers that compute "Pennsylvania withholding" on different lines are usually applying one base to the wrong partner type.

The 100 percent imputation

The corporate net income tax instructions state the rule plainly: "Completing the Sales Factor as 0/0, leaving the sales factor field blank or typing 'none' in this field will result in apportionment being changed to 100 percent in Pennsylvania, automatically changing the reported tax liabilities" (REV-1200, 2025, Schedule C-1). The factor "must be numeric with a numerator and a denominator present," and "If no activity anywhere, the numerator must be '0' and the denominator must be '1'" (REV-1200, 2025, Sales Factor). A corporate partner whose only activity is its partnership interest, and whose partnership's receipts are all dividends or securities sales, reaches 0/0 by operation of the exclusions, not by omission; the instructions treat that factor the same as a blank one, and they do not say whether excluded receipts count as "activity" for the 0 over 1 instruction.

A corporate partner that cannot document its share of a partnership's receipts on review risks the same result. The 100 percent result is a processing consequence of missing data, not a finding that the income arises in Pennsylvania, and it is answered with the data.

A worked example shows the stakes. On a calendar year 2025 return, the operating partnership's receipts factor, after excluding dividends and with the platform proceeds left out pending a position, is $21,000,000 in Pennsylvania over $350,000,000 everywhere, a proportion of 0.060000. The management corporation's own receipts are $12,500,000 everywhere and $450,000 in Pennsylvania. Adding its 5 percent share of the partnership's receipts, $17,500,000 everywhere and $1,050,000 in Pennsylvania, its sales factor is $1,500,000 over $30,000,000, or 0.050000. Its taxable income is $58,000,000, of which $55,000,000 is its distributive share (the gain included). Pennsylvania taxable income is $2,900,000, and the tax at 7.99 percent is $231,710, before net loss deductions and credits. If the sales factor is reported as 0/0 or left blank and resets to 100 percent, the tax on the same income is $4,634,200, an increase of $4,402,490. Had the management corporation been a nonfiling corporate partner, the operating partnership's Schedule CP would have withheld $263,670: $55,000,000 times the partnership's 0.060000, times 7.99 percent. The withholding uses the partnership's factor alone, so the partner's own return, with its credit, settles the liability.

Contesting the notice

A petition for reassessment goes to the Department's Board of Appeals, which accepts petitions through its Online Petition Center or by mail but not by email or fax, and treats a petition as timely if received or postmarked by the due date (Department of Revenue, Tax Appeals). The Board of Appeals' published guidance gives 60 days after the mailing date of the notice for most tax types and 90 days for Article III taxes such as the personal income tax, a change Act 123 of 2024 made (Department of Revenue, Tax Appeals, Technical Provisions and Q&A; Personal Income Tax Guide, Brief Overview and Filing Requirements). The corporate net income tax is an Article IV tax, and "Your Notice of Assessment specifies the time in which an appeal must be filed with the Board of Appeals" (Tax Appeals). A petition "may be amended to add additional facts or to contest additional portions of the amount of tax as assessed" at any time before the decision issues (Technical Provisions and Q&A), so a petition filed on time with an incomplete record can be completed. A decision of the Board of Appeals may be appealed to the Board of Finance and Revenue.

The evidence is the partnership's: the Schedule H-Corp for each year, the lower-tier receipts behind its "Partner's share of sales from partnerships" line, the partnership's federal return and the corporate partner's K-1 showing its ownership percentage, and an RCT-106 rebuilt from those figures. Where a nonbusiness claim is also in dispute, the petition either concedes it, if the corporate partner is unitary with the partnership's business, or makes the absence-of-unity showing the definition requires.

Practice notes

Each receipt has two Pennsylvania characters, and the workpapers should carry both: its personal income tax class, which drives the nonresident schedule and withholding, and its corporate net income tax character, which drives the corporate partner's return and Schedule CP. Before the extension, the partnership collects dollar receipts by state from every lower tier, including fund interests, because Schedule H-Corp cannot be completed from percentages; a written position on whether sale proceeds of a lower-tier interest enter the factor belongs in the same file. A corporate partner that files the RCT-101 should confirm that the partnership has it on record as compliant, or the partnership will withhold under Schedule CP. A corporate partner whose factor is empty by operation of the exclusions is better placed reporting 0 over 1 with a statement explaining the excluded receipts than reporting 0 over 0, although the instructions do not address that case, and an alternative apportionment request is the route where a ruled method is needed. A 100 percent notice is answered within the period it prints with the partnership's schedules attached. G&G State Tax Group provides Pennsylvania apportionment and withholding analysis for investment partnerships and their corporate partners, including petitions to the Board of Appeals, alongside its state and local tax practice.