New Jersey Bonus Depreciation: GIT + CBT Non-Conformity + Cost Seg Impact.
New Jersey decoupled from federal §168(k) bonus depreciation for both individual (GIT, 2004) and corporate (CBT, 2002) tax. Here's the dollar impact on a $750K NJ rental, how your CPA files Form GIT-DEP, and why no entity type escapes the add-back.
Reviewed by Cost Seg Smart Editorial Team · Last reviewed: · Cites NJ Treasury Decoupling guidance, Form GIT-DEP
Federal vs New Jersey — Side by Side
| Tax provision | Federal (IRC) | NJ Gross Income Tax | NJ Corporation Business Tax |
|---|---|---|---|
| §168(k) bonus depreciation | 100% (permanent, OBBBA 2025+) | Disallowed — decoupled since TY 2004 | Disallowed — decoupled since 2002 |
| §179 immediate expensing cap (2025) | $1,220,000 | $25,000 — capped | Follows federal cap |
| Replacement method | N/A | Pre-bonus MACRS / ADS straight-line | Pre-bonus MACRS |
| Taxpayer adjustment form | Form 4562 | Form GIT-DEP → Schedule NJ-BUS-1 → NJ-1040 | Schedule S (CBT-100), Parts I & II |
| Asset basis tracking | Federal basis | Parallel NJ basis from Year 1 | Parallel NJ basis from Year 1 |
Sources: NJ Treasury Decoupling page, Form GIT-DEP, 2025 CBT-100 Instructions, N.J.A.C. 18:7-5.2.
How NJ decoupling affects your cost segregation study
The cost segregation study itself is unaffected by NJ's decoupling — same RSMeans 2024 cost data, same MACRS classification per Rev. Proc. 87-56, same IRS Pub 5653 13-element framework. The reclassified 5/7/15-year components are identical for NJ and federal purposes.
What changes is how the schedule flows through parallel depreciation books:
- Federal book: 100% bonus on reclassified 5/7/15-year property in Year 1, plus MACRS on the remaining basis.
- NJ book: standard MACRS on all components, no §168(k) bonus. Year 1 produces a much smaller deduction.
The federal-vs-NJ delta flows through Form GIT-DEP for individuals or Schedule S for corporations. Lifetime depreciation totals are identical; NJ timing simply spreads the deduction over 5–15 years instead of front-loading it.
Real numbers: $750K New Jersey rental
| Line item | Federal | New Jersey |
|---|---|---|
| Purchase price | $750,000 | $750,000 |
| Land allocation (20%) | $150,000 | $150,000 |
| Depreciable basis | $600,000 | $600,000 |
| Reclassified to 5/7/15-yr (18.3% SFR benchmark) | $109,800 | $109,800 |
| Year-1 deduction on reclassified components | $109,800 (100% bonus) | ~$5,500 (ADS straight-line) |
| Year-1 deduction on remaining 27.5-yr basis | ~$8,909 | ~$8,909 |
| Total Year-1 deduction | $118,709 | ~$14,409 |
| Marginal tax rate | 37% | 8.97% (mid-bracket) |
| Year-1 tax savings | $43,922 | ~$1,293 |
| Cost Seg Smart study cost | $995 (residential under $1M basis) | |
| Combined Year-1 tax savings (federal + NJ) | ~$45,215 | |
| ROI on $995 study fee | 45× | |
High-income NJ investors at the 10.75% top bracket (above $1M taxable income) see slightly higher NJ savings, but the federal benefit at 37% dominates either way. The NJ portion is the most deferred among the three non-conforming states because NJ uses ADS straight-line rather than standard MACRS — pushing Year-1 recovery lower than NY or CA.
Forms your CPA files for New Jersey
NJ reporting workflow varies by entity type. The key forms:
Individual investors (GIT) — including pass-through LLC, S-corp:
- Federal Form 4562 — depreciation including §168(k) bonus on reclassified components.
- NJ Form GIT-DEP — Depreciation Adjustment Worksheet. Recomputes NJ depreciation without bonus on each cost-segregated component. GIT-DEP PDF.
- NJ Schedule NJ-BUS-1 — adjustments flow to Part III (Schedule C / business income) or Part IV (rents and royalties).
- NJ Form NJ-1040 — totals flow to NJ-1040 lines 18-20.
C-corporations (CBT):
- Federal Form 4562 — depreciation with §168(k) bonus.
- NJ Form CBT-100, Schedule S:
- Part I — regular depreciation adjustments (bonus add-back).
- Part II — utilities-specific depreciation modifications.
- NJ Form CBT-100 — Schedule S totals flow to the main return.
Per N.J.A.C. 18:7-5.2, both GIT and CBT require taxpayers to "uncouple the federal and state depreciation claimed as a deduction in arriving at entire net income" — no exceptions by entity type.
Form 3115 lookback under NJ's decoupling
Federal Form 3115 captures the §481(a) catch-up adjustment for prior-year missed accelerated depreciation. For NJ properties held 2+ years and never cost-segregated, the federal §481(a) adjustment can be substantial — frequently $20,000–$50,000+ on residential rentals in this price range.
NJ's parallel state-side adjustment is much smaller. Because NJ never recognized federal §168(k) bonus, the NJ-side lookback reflects only the classification difference (proper MACRS vs. straight-line that may have been used on NJ books) — not the bonus difference. The federal-side lookback is unaffected; the NJ-side adjustment runs through GIT-DEP (individuals) or CBT Schedule S (corporations) as a cumulative basis correction.
See Form 3115 cost segregation lookback for full federal mechanics, partnership/LLC pass-through treatment, and timing rules.
Should you skip cost segregation in NJ? No.
NJ's decoupling defers the state portion but doesn't change the federal economics. The math overwhelmingly favors doing the study:
- Federal benefit is dominant. At 37% federal bracket, the federal Year-1 deduction produces ~$44,000+ on a $750K rental. NJ-portion deferral is roughly $5,200 over 5-15 years — meaningful but secondary.
- NJ depreciation recovers. Same reclassified basis depreciates on NJ books in years 2 through 16. Total lifetime NJ deduction matches federal.
- No entity-type escape — make peace with the bookkeeping. Unlike some states with corporate carve-outs, NJ requires add-back across GIT and CBT. Parallel basis tracking is real but routine for any CPA running NJ depreciation schedules.
- Federal Form 3115 lookback is unaffected. For NJ properties held 2+ years, the federal §481(a) catch-up adjustment is available regardless of NJ decoupling.
Frequently asked
Does New Jersey conform to federal §168(k) bonus depreciation?
No — and this applies to both NJ Gross Income Tax (GIT) and Corporation Business Tax (CBT). NJ decoupled GIT from bonus depreciation for tax years beginning on or after January 1, 2004; CBT decoupled even earlier, for privilege periods starting on and after January 1, 2002. Per the NJ Division of Taxation: 'The law disallowed the use of federal bonus depreciation for privilege periods starting on and after January 1, 2002.' Both regimes require add-back of the federal §168(k) deduction. There's no entity-type escape — individuals, pass-throughs (LLCs, S-corps), and C-corps all face the NJ add-back.
What's the practical impact on a $750K NJ rental?
On a $750K NJ rental with 18.3% cost-segregation reclassification ($137,250 reclassified basis) at a 37% federal / 8.97% NJ bracket (the typical NJ rental investor's effective bracket), the federal Year-1 deduction is ~$137,250 (federal savings $50,783); the NJ Year-1 deduction is approximately $6,800 (NJ savings ~$610). The deferred NJ portion recovers over the asset class lives in years 2 through 16. For investors in the 10.75% top NJ bracket (above $1M taxable income), the NJ-side deferral is slightly larger in absolute dollars but still secondary to the federal benefit.
What NJ forms does my CPA file?
Individuals and pass-throughs (GIT): complete Form GIT-DEP (Depreciation Adjustment Worksheet). The federal-vs-NJ depreciation delta flows to Schedule NJ-BUS-1 (Part III for Schedule C income, Part IV for rents and royalties), and from there to Form NJ-1040 lines 18-20. C-corps under CBT: use Schedule S on Form CBT-100 — Part I for regular depreciation modifications, Part II for utilities-specific items. Asset basis is tracked separately on the NJ books from Year 1 forward.
Does NJ have a §179 immediate expensing limit?
Yes, and the limits differ between GIT and CBT. NJ GIT caps the §179 deduction at $25,000 per N.J.S.A. 54A:5-1.2 (matching California's GIT-level cap). NJ CBT follows the federal §179 cap ($1.22M for 2025). For cost segregation purposes, §179 rarely overlaps significantly with the components a study reclassifies — most are 5/15-year property that flows through MACRS rather than §179. The §168(k) add-back is the dominant NJ non-conformity issue for cost seg studies, not §179.
Does the NJ add-back also apply to OBBBA's new §168(n) Qualified Production Property?
Likely yes for GIT; CBT treatment less settled. NJ's decoupling provisions explicitly target federal bonus depreciation regimes generally, not just §168(k). The 2025 OBBBA's new §168(n) (Qualified Production Property — a new first-year expensing provision for certain real property) is a federal-only benefit; NJ has not published guidance specifically adopting it. Standard practice: assume NJ add-back applies to §168(n) the same as §168(k) until NJ Treasury issues contrary guidance.
Does federal Form 3115 lookback work in New Jersey?
Federal Form 3115 captures the federal §481(a) catch-up adjustment for prior-year missed accelerated depreciation. NJ's parallel state-side adjustment is smaller — NJ never recognized federal §168(k), so the NJ-side lookback reflects only the classification difference (proper MACRS vs. whatever schedule was used on the NJ books). The federal lookback is unaffected by NJ decoupling; the NJ-side adjustment runs through Form GIT-DEP (individuals) or CBT Schedule S (corporations) as a cumulative basis correction.
Should I still do cost segregation on a NJ property?
Yes, in nearly every case. The federal Year-1 deduction is overwhelmingly the dominant benefit. On a $750K NJ rental at a 37% federal bracket, federal savings are ~$50,783; the deferred NJ portion is roughly $5,200 in lifetime savings spread over 5-15 years. The federal benefit alone justifies the study many times over. NJ's decoupling adds bookkeeping complexity (parallel basis tracking) but doesn't change the fundamental economics — the study still pays at roughly the same federal ROI as it would in any other state.
Related guides
- Bonus depreciation by state — overview
- All 50 states — conformity reference table
- California bonus depreciation (PIT + corp non-conforming)
- New York bonus depreciation (decoupled, Resurgence Zone carve-out)
- Form 3115 cost segregation lookback — §481(a) mechanics
- 100% bonus depreciation under OBBBA — federal mechanics
- Sample cost segregation reports (23 PDFs)
- Audit defense scope — 13 IRS Pub 5653 quality elements