Can an upper-tier partnership have New Jersey installment penalties abated when it cannot see its income in time, and what happens once the account goes to collections?

What New Jersey charges a partnership with nonresident partners

New Jersey's nonresident withholding for partnerships is a tax in the Corporation Business Tax Act. A partnership that is not a qualified investment partnership, an investment club or a partnership listed on a national exchange remits tax on its nonresident partners' shares of New Jersey income by the 15th day of the fourth month after its year closes, at 6.37 percent of each nonresident noncorporate partner's share and 9 percent of each nonresident corporate partner's share (N.J.S.A. 54:10A-15.11(a)(1), as amended by P.L. 2021, c. 419; 2025 Form NJ-1065 instructions, Partners Directory, columns I and J). The tax is reported on Form NJ-CBT-1065, filed with the NJ-1065.

The next paragraph of the statute requires that partnership to "make installment payments of 25% of that tax" on the 15th day of the fourth, sixth and ninth months of its year and of the first month after the year closes (N.J.S.A. 54:10A-15.11(a)(2)(a)): for a calendar year partnership, April 15, June 15, September 15 and the following January 15. The partnership "shall be deemed to make an installment payment subject to the provisions of section 5 of P.L.1981, c.184 (C.54:10A-15.4) and shall be liable for any additions to tax provided thereunder" (N.J.S.A. 54:10A-15.11(a)(2)(b)). The deeming language brings in the corporate regime, including the regulation on underpaid installments, N.J.A.C. 18:7-3.15.

Form CBT-160-P, Underpayment of Estimated NJ Partnership Tax, carries the computation. Line 1 is the year's tax from line 4 of the NJ-CBT-1065, which is the total nonresident partner tax before any credits; line 2 is 90 percent of it; line 3 is the prior year's tax from line 4 of the prior year's NJ-CBT-1065; line 4 is "the lesser of lines 2 or 3"; and each required installment is 25 percent of line 4 (2025 Form CBT-160-P, Part I). The form's exceptions excuse the charge where payments made on time equal the tax computed on the prior year's facts at current rates, or the tax on annualized income for the months before the installment date. The charge itself is interest: "3% above the average predominant prime rate" for each month or part of a month the underpayment exists, entered on line 5 of the NJ-CBT-1065.

Two other charges sit beside the installment interest. Tax not paid by the return's original due date carries interest at "3% above the prime rate for every month or part of a month the tax is unpaid, compounded annually," with unpaid tax, penalties and interest added to the interest base at each year end, and penalties for late filing ("5% per month (or part of a month) up to a maximum of 25% of the outstanding tax liability") and late payment ("5% of the outstanding tax balance may be imposed") (2025 NJ-1065 instructions). The partnership filing fee of $150 for each owner (capped at $250,000) is a separate charge: it is due by the 15th day of the fourth month after the year closes, an installment equal to 50 percent of the current year's fee is due at the same time, and "There is no extension of time to pay the fee due" (2025 NJ-1065 instructions).

Why an upper tier misses the installments

An upper tier whose New Jersey income comes only from its lower tiers does not know that income, or the lower-tier credits that will offset its tax, until the lower tiers issue their Schedules NJK-1. The example here is an operating partnership, a Delaware LLC taxed as a partnership, that is that kind of upper tier. Its partners are all nonresidents of New Jersey; it carries on no activity of its own in New Jersey; and its New Jersey income arrives through lower-tier LLCs and funds that hold real estate and operating businesses there. Each lower tier that pays New Jersey tax on the operating partnership's share reports the payment on the NJK-1 it issues, and the operating partnership lists those payments on Schedule A, Part II, of its own return and applies them against its nonresident partner tax on line 8 of the NJ-CBT-1065 (2025 NJ-1065 instructions, Schedule A, Part II; 2025 Form NJ-CBT-1065).

The Pass-Through Business Alternative Income Tax changes the size of the exposure, not its timing. Since the 2021 amendment, a partnership need not remit for a nonresident partner that "reasonably expects to be refunded the payment on account of a tax credit" under N.J.S.A. 54A:12-5 (N.J.S.A. 54:10A-15.11(a)(3)), and an upper tier may apply its share of a lower tier's alternative income tax against its nonresident partner tax (2025 NJ-1065 instructions, Schedule A, Part II, line 3; 2025 Form NJ-CBT-1065, line 7). The library's article on whether a pass-through entity tax election ends nonresident withholding covers that rule; for partners outside it, the installment schedule below still applies.

In the prior year the operating partnership's New Jersey nonresident partner tax (NJ-CBT-1065, line 4) was $1.2 million. In the year of sale, its share of the lower-tier platform gain lifts the New Jersey tax to $4.0 million, and lower tiers pay $1.5 million on its behalf, reported on NJK-1s that reach it in the fall after the year closes. The required installment is 25 percent of the lesser of $3.6 million (90 percent of $4.0 million) and $1.2 million, or $300,000 on each of the four dates. If the operating partnership pays $300,000 on each date, no installment interest arises for the year of sale, however large the gain turns out to be. If it pays nothing and relies on the lower-tier credits, interest runs on up to $300,000 from each installment date.

Two features of the computation limit what the lower-tier credits do. The required installments are measured on line 4, the tax before lower-tier credits. And CBT-160-P counts the "Amount paid or credited for each period," but neither the statute, N.J.A.C. 18:7-3.15 nor the CBT-160-P instructions say whether a lower-tier payment counts toward the upper tier's installments, or as of what date: the date the lower tier paid, the date the NJK-1 was issued, or the date the upper tier files. Section 54:10A-15.11(b) deems tax a lower tier pays "to have been paid by the respective partner in respect of the privilege period or taxable year of the partner," which speaks to the year the credit belongs to, not to the installment date it satisfies. Where the Division does not credit lower-tier payments against an installment, the upper tier carries installment interest on tax its lower tiers had in fact paid.

The year after the year of sale is the harder one. Its prior year tax is now $4.0 million, so the prior-year measure would require $1.0 million a quarter, and the lesser-of rule helps only if 90 percent of the new year's tax turns out lower, a figure the upper tier will not know until its lower tiers report. The annualized income exception can reduce early installments, but only if the upper tier can annualize income it does not yet see.

The return's due date repeats the problem. The statute fixes payment at the 15th day of the fourth month after the year closes; the five-month extension, automatic with a federal extension, is an extension of time to file only (2025 NJ-CBT-1065 instructions). The April payment is the true-up of the installments against a liability the upper tier can only estimate.

Penalties: the reasonable cause case for an upper tier

N.J.S.A. 54:49-11(a) gives the Division discretion to "remit or waive the payment of the whole or any part of any penalty," and the regulation restates it: "The Director may waive the payment of the whole, or any part, of any penalty" on a showing of "reasonable cause for failure to file any return or pay any tax when due," made in "a written statement, containing a declaration that it is made under penalties of perjury" (N.J.A.C. 18:2-2.7(a), (b)). Reasonable cause "may be determined to exist only where the taxpayer has acted in good faith" (N.J.A.C. 18:2-2.7(e)), and in deciding it "the most important factor to be considered is the extent of the taxpayer's effort to ascertain the proper tax liability" (N.J.A.C. 18:2-2.7(d)1).

The regulation's third example of reasonable cause describes the upper tier's position. "The inability, for reasons beyond the taxpayer's control, to timely obtain and assemble essential information required for the preparation of a complete return, despite the exercise of reasonable efforts, may constitute reasonable cause provided a return is timely filed and the tax is timely paid or paid over on that portion of the tax liability which can be ascertained. The relevant facts affecting that portion of the tax liability which cannot be ascertained must be fully disclosed with the timely filed return and when such liability is ascertained, and where applicable collected, an amended return must be immediately filed together with any additional tax due" (N.J.A.C. 18:2-2.7(c)3). The example that follows is a limited partnership that "fails to issue K-1 forms in time for a limited partner to include the information on the partner's return"; the partner estimates in good faith, attaches a rider explaining why the liability could not be determined, files an amended return when the K-1 arrives and pays the difference, and the regulation concludes: "This constitutes reasonable cause for failure to pay the tax due."

Read against that text, the upper tier's request rests on four facts: the partnership conducts no business of its own in New Jersey; its New Jersey income and lower-tier credits are known only from NJK-1s issued after the payment dates; it estimated what it could; and it paid, filed or amended promptly once the lower tiers reported. The conditions in (c)3 matter as much as the narrative: a timely return (including on extension), the ascertainable portion paid by the due date, disclosure with the return, and an amendment that followed the NJK-1s without delay. A request that shows none of those steps describes the structure rather than the taxpayer's effort, which (d)1 makes the decisive factor.

"Abatements can only be granted once a penalty has been assessed and the taxpayer is notified (billed)," and the request needs "A written statement providing all the facts that support the reasonable cause for the abatement" and "A signed declaration that it is made under penalties of perjury," sent to the address on the billing notice or made on the Division's Abatement Request Form (Division of Taxation, Penalty and Interest Abatement, last updated April 7, 2026). The form "can only be submitted when responding to a bill or if you are under audit and assigned a caseworker," and a representative attaches Form M-5008-R (Abatement Request Form). A denial is reviewable: the Division's taxpayer rights publication describes a protest to the Conference and Appeals Branch within 90 days of the determination date, or an appeal received by the Tax Court within 90 days of the determination (Publication ANJ-1, rev. 10/16). The discretion is reviewable: in United Parcel Service General Services Co. v. Director, Division of Taxation (N.J. December 4, 2014), the Supreme Court affirmed a holding that the Division had not properly exercised its section 54:49-11(a) discretion in refusing to waive late payment penalties where genuine questions of fact and law existed.

Interest: why reasonable cause does not reach it

Installment interest is not a penalty in New Jersey's scheme. The corporate regulation that governs the partnership's installments calls it an addition to tax and states that "This addition to the tax is imposed irrespective of any reason for the underpayment" (N.J.A.C. 18:7-3.15(a)). The reasonable cause regulation, by its title and text, addresses "penalty and interest calculated on such penalty" (N.J.A.C. 18:2-2.7), so its examples do not reach the installment charge or the interest on unpaid tax.

The installment regulation does leave a narrow opening: "A taxpayer may petition the Director of the Division of Taxation to have such penalties and interest waived" for undue hardship, good cause or other reasons provided under the State Tax Uniform Procedure Law (N.J.A.C. 18:7-3.15(f)). The statute caps that opening: the Director may remit only "any interest charge in excess of the rate of three percentage points above the prime rate" (N.J.S.A. 54:49-11(a)), a level these rates do not exceed, and the Division's abatement page lists what cannot be waived: "Interest (assessed at a statutory minimum)," "Collection fees" and "Post-amnesty penalties" (Division of Taxation, Penalty and Interest Abatement). On that position, an upper tier that wins its penalty abatement still pays the installment interest and the interest on the late tax, and interest on any penalty that is waived falls away with it. Any such request is therefore a penalty request, and the planning answer to the interest is the installment schedule, not the abatement letter.

Once the account goes to collections

The Division describes the referral in plain terms. If a taxpayer does not respond to a notice of deficiency, "we then send your account to the collection agency"; the agency assigns a caseworker; "agents with the Division can no longer assist you with any questions about these tax matters"; and the taxpayer "must contact the vendor directly" (Division of Taxation, Collection Process, last updated June 30, 2026). The Director's authority to contract with private debt collection services, and to add their compensation to the amounts collected, dates from P.L. 1992, c. 172.

The referral adds a charge of its own. "[A] Referral Cost Recovery Fee is added to your tax liability. This fee is in addition to any interest or penalties" (Collection Process). The regulation sets the fee at "10 percent of the amount referred for collection to the private debt collection service," or, where the contract was publicly bid and pays the contractor a specified percentage, "the percentage specified in the contract" (N.J.A.C. 18:2-2.5(d)); the Division now states that "Effective June 15, 2026, the fee is 9.85%," replacing the 11 percent that Publication ANJ-1 (rev. 10/16) still prints (Division of Taxation, Penalties, Interest, and Collection Fees, last updated May 18, 2026). The abatement page lists collection fees among the charges that cannot be waived. Because the fee is a percentage of the referred debt, a penalty abated after referral reduces its base; neither the regulation nor the Division's pages say whether the contractor then recomputes the fee on the lower balance, and a representative asks for that recomputation as part of the resolution.

If the balance stays unpaid, the next step is a judgment. "If the debt is still outstanding, a Certificate of Debt (COD) is entered with the Clerk of the New Jersey Superior Court," it "has the same force and effect as a Docketed Judgment," a cost of collection fee "is added to the docketed judgment," and the case returns to the Division for further collection (Collection Process). For a certificate of debt, the regulation's fee in lieu of actual cost is "the greater of five percent of the tax or $ 100.00" (N.J.A.C. 18:2-2.5(b)). Under a payment plan, "interest continues to accrue until the liability is paid in full" (ANJ-1).

Representation is the practical gate. Collection agency employees "follow the same confidentiality rules as employees in our Customer Service Center" (Collection Process), so the contractor discusses the account only with the taxpayer or an authorized representative. Form M-5008-R, Appointment of Taxpayer Representative (rev. 6/26), grants authority "to obligate, bind, and/or appear on your behalf"; for a partnership, all partners sign or a partner authorized to act for the partnership signs on its behalf. Filing it "automatically revokes all earlier Appointment(s) of Taxpayer Representative and/or Power(s) of Attorney" unless the box preserving them is checked and copies are attached, and "a representative's authority does not extend to some aspects of the collection process," with "judgments, levies, liens, and seizures" as the examples. Copies of notices go to the first listed representative, "other than automated computer notices," so automated collection letters continue to reach the partnership directly while a response is pending.

The Division's pages do not say that a pending abatement request holds off a referral, and once the contractor holds the account, the Division directs all contact to it. Collection correspondence can also ask a business to identify its responsible officers; that request is answered through the appointed representative, and whether any personal liability could attach to this tax is a separate question this article does not reach.

Practice notes

For an upper tier with nonresident partners, the installment schedule is set at the start of each year from the prior year's NJ-CBT-1065 line 4, which satisfies the lesser-of rule whatever the current year brings; the year after a large gain is planned separately. Lower-tier credits are tracked by lower tier, amount and payment date, since their effect on the installments is unsettled. At the April due date, the sound sequence is to pay the ascertainable portion, file or extend, disclose on the return why the New Jersey income and lower-tier credits could not be determined, and amend promptly when the NJK-1s arrive, which is the record N.J.A.C. 18:2-2.7(c)3 describes. A penalty bill is answered within its response window with a sworn reasonable-cause statement built on that record, and the interest is paid. If the account is referred, an M-5008-R goes to the contractor at once, the abatement request is resubmitted there, and the resolution covers the penalty, the interest on it and the referral fee on the reduced balance. G&G State Tax Group provides installment planning, penalty abatement requests and collection representation for tiered partnerships alongside its state and local tax practice.