New Jersey does not allow federal bonus depreciation. If you own rental or commercial property in the state and claim bonus federally, including on the components a cost segregation study identifies, your New Jersey return rebuilds that deduction on a slower schedule.
As co-founder of Seneca Cost Segregation and a real estate investor myself, I’ve worked with owners of New Jersey rentals and commercial buildings who learn about the state difference only when their CPA opens the NJ return. The question that follows is always the same: if New Jersey ignores bonus, does the study still pay for itself here?
Below, I cover how each New Jersey tax treats bonus and Section 179, what a study still earns on the state return, how the gap reverses at sale, and the 2026 changes worth raising with your CPA.
TL;DR — Does New Jersey Allow Bonus Depreciation?
- ●No 100% write-off on the NJ return: federal bonus on property acquired and placed in service after January 19, 2025 is added back, and New Jersey depreciates the full basis instead.
- ●Your study’s short lives still count in New Jersey: the state uses the same method and recovery period as your federal return, so 5-, 7-, and 15-year components still depreciate far faster than a 39-year building.
- ●Section 179 stops at $25,000 in New Jersey: the federal 2026 limit is $2,560,000, so expensing does not close the gap.
- ●The difference comes back to you: New Jersey depreciation runs ahead of federal in later years, and the state gain on a sale is adjusted for the depreciation you never took.
- ●High rates make the state deduction worth having: the top Gross Income Tax rate is 10.75%, and large corporations can face 11.5%.
- ●2026 brought a new limit on cross-category losses: filers with gross income over $500,000 get a smaller alternative business calculation benefit, and over $1,000,000 they get none.
The Short Answer on New Jersey Bonus Depreciation
New Jersey decoupled from federal bonus depreciation more than two decades ago, and the 2025 federal law did not change that.
The New Jersey Division of Taxation explains that the Corporation Business Tax stopped allowing federal bonus for privilege periods starting on and after January 1, 2002. A 2004 law extended the decoupling to the Gross Income Tax for tax years beginning on or after January 1, 2004, and also cut both taxes loose from the federal Section 179 rules.
Federal bonus is now a permanent 100% for property acquired and placed in service after January 19, 2025, under the One Big Beautiful Bill. New Jersey’s current forms still require the adjustment for that property.
How the Gross Income Tax Treats Bonus Depreciation
The Gross Income Tax covers individuals, partnerships, and S corporation shareholders, so most rental owners land here. The Gross Income Tax Depreciation Adjustment Worksheet, GIT-DEP, is where the state deduction is rebuilt.
On the worksheet, you start from the federal basis before any bonus or Section 179, then depreciate it with the same method and the same life you used federally. GIT-DEP still allows a legacy 30% special allowance tied to early-2000s federal rules and disallows the 50% allowance, and current federal bonus has no state equivalent. The difference becomes an addition or subtraction in the income category where the property sits, such as rents.
How the Corporation Business Tax Treats Bonus Depreciation
Corporations filing Corporation Business Tax returns make the same correction on Schedule S. The 2025 return instructions state that New Jersey has decoupled from Section 168(k) bonus depreciation and Section 179 expensing.
For 2026, the Tax Foundation lists rates of 6.5% to 9% on entire net income, rising to 11.5% above $10 million once the 2.5% Corporate Transit Fee applies, a fee that does not reach S corporations filing the CBT-100S.
How New Jersey Handles Section 179
Section 179 offers little relief on the New Jersey return, because the state caps it at the 2002 federal level.
GIT-DEP sets the maximum Section 179 deduction at $25,000, with the reduced dollar limitation calculated on that figure, no business income limitation, and no carryforward. Each partnership and S corporation is held to its own $25,000 maximum.
For comparison, the 2026 federal limit is $2,560,000 with a phase-out above $4,090,000, so an owner who expensed a roof or HVAC system federally will see most of it added back.
Federal vs New Jersey Depreciation Side by Side
Here is how the two returns compare on the points that move a real estate owner’s numbers.
Does Cost Segregation Still Pay Off in New Jersey?
For most New Jersey owners, the study still pays at the state level, because decoupling removes the bonus and leaves the shorter recovery periods in place.
What a Study Still Delivers on the State Return
A cost segregation study moves basis out of the 27.5- or 39-year building and into 5-, 7-, and 15-year property. New Jersey keeps those classifications, so a dollar reclassified to 5-year property depreciates on a 200% declining balance schedule on your state return as well, as our overview of accelerated depreciation schedules for building components shows.
Our guide on whether cost segregation is worth it covers the property-size thresholds where the combined numbers usually make sense.
A Worked Example of the Federal and New Jersey Split
Picture a commercial building placed in service in 2026, where a study reclassifies $225,000 to 5-year property and $150,000 to 15-year land improvements, both using the half-year convention.
On the New Jersey return, the owner adds back $322,500 in year one, the gap between the federal and state figures. In year two, those same components produce $86,250 of New Jersey depreciation with no federal counterpart, and the subtractions continue until the state has recovered the full basis.
Compared with leaving the basis in the building, the study adds roughly $42,885 of New Jersey depreciation in year one, worth about $4,610 at the 10.75% top rate. The federal benefit is larger, about $135,192 at a hypothetical 37% rate, provided the bonus is usable under the passive activity and excess business loss rules.
What Happens When You Sell New Jersey Property
The depreciation New Jersey denied up front comes back, because the state tracks a separate basis for each asset.
Part IV of GIT-DEP compares the total depreciation deducted for New Jersey with the total deducted federally and adjusts your federal gain or loss by the difference. If the asset is sold before New Jersey catches up, state depreciation is lower, state basis is higher, and the New Jersey gain is smaller than the federal gain.
Schedule S makes the same comparison for corporations. Federal recapture follows its own rules, which our explainer on the depreciation recapture tax rate breaks down.
New Jersey Rules That Change the Planning
Three state rules shape how much of the New Jersey deduction you can use, and when.
Rental Losses and the 2026 Alternative Business Calculation Limits
New Jersey generally does not let a loss in one income category offset income in another, so a rental loss cannot reduce wage income on the state return. The alternative business calculation softens that across four business categories: net profits from business, rents and royalties, partnership income, and S corporation income.
Assembly Bill 5323, signed with the state budget on June 30, 2026, reduces that adjustment from 50% to 25% of the business increment for filers with gross income over $500,000. Above $1,000,000 of gross income, the adjustment is eliminated, starting with tax years beginning in 2026.
Federal rules on passive losses are separate, and our guide on whether cost segregation can offset W-2 income covers the real estate professional and short-term rental routes.
The Alternate Depreciation for Affordable Housing Developments
For tax years beginning on or after January 1, 2025, GIT-DEP allows an alternate 10-year depreciation on part of the capital expenditures for a new affordable housing development.
The development qualifies when construction begins on or after March 20, 2024, at least 20% of the units are affordable, and it receives neither a Long Term Tax Exemption Law abatement nor an affordable housing construction subsidy.
The share of expenditures eligible for the 10-year schedule equals the affordable units divided by total units, multiplied by two. A development with 25% affordable units, for example, could depreciate half of its eligible expenditures over 10 years on the state return.
Partnerships and S Corporations Carry the Adjustment
A partnership or S corporation that files in New Jersey computes the adjustment itself and passes the result through on each owner’s NJ-K-1. If the entity does not file, each owner makes the adjustment from figures the entity provides.
When we coordinate with CPAs on New Jersey filings, the request we hear most is for a study asset list that breaks every component out by recovery period and placed-in-service date. Those two fields are exactly what GIT-DEP and Schedule S need, year after year.
Mistakes to Avoid With New Jersey Depreciation
Each of these is common on New Jersey returns and avoidable.
- ●Copying federal depreciation onto the state return: the bonus slips through and the return understates New Jersey income. Run GIT-DEP or Schedule S for every asset with federal bonus or Section 179.
- ●Treating Section 179 as a workaround: New Jersey caps the deduction at $25,000 for each taxpayer or entity, so expensing a large renovation federally still creates a state add-back. Model the state figure before electing.
- ●Losing the worksheet trail: the adjustment continues every year until the asset is fully depreciated or sold, and later years depend on the first. Keep each year’s GIT-DEP with the study report.
- ●Double-counting gain at sale: a federal gain reported unadjusted on the New Jersey return ignores the higher state basis. Apply the Part IV adjustment or its Schedule S equivalent.
- ●Skipping a study because New Jersey decouples: the shorter recovery periods still apply on the state return. Compare both returns before deciding.
- ●Overlooking the 2026 loss limits: high-income owners may get less state benefit from a rental loss. Confirm your gross income bracket with your CPA.
Frequently Asked Questions
Below are the questions we hear most from New Jersey owners and their CPAs about bonus depreciation on the state return.
How Seneca Supports New Jersey Property Owners
A New Jersey return leans on a study for years, since every component’s recovery period and placed-in-service date drive the state adjustments. Our in-house engineers build each study to hold up that long, our Head of Engineering signs off before delivery, and audit defense comes with every engagement.
That approach has carried 10,200+ properties through assessment with zero IRS audits lost. For a quick sense of what a study could reclassify on your building, try our cost segregation calculator.
Conclusion
New Jersey’s answer on bonus depreciation has been no since the early 2000s, and the permanent federal 100% rate did not move it. What decoupling changes is the timing of the state deduction, while the faster recovery periods from a study carry over intact.
Plan for two sets of depreciation from the day the property goes into service, and keep the records that tie them together until you sell. Our broader guide to cost segregation and bonus depreciation covers the federal side in depth, and a free estimate from our team will show what both returns could look like for your property.
