Buying a vehicle: why New York and New Jersey give different answers

Federal law lets you write off most of a business vehicle in year one. New York starts from that figure and takes part of it back — permanently, on a heavy SUV. New Jersey ignores it, keeps its own basis for the vehicle, and returns the difference when you sell. One purchase, three answers.

Dollar figures on this page are the amounts in force for tax year 2026. Several are adjusted for inflation each year.

Does the 6,000 lb rule apply to my vehicle?

There are two weight tests, not one, and a vehicle can pass the first and fail the second. The first decides whether the luxury-auto caps reach the vehicle at all; the second decides whether the sport utility vehicle cap on §179 does.

A sport utility vehicle is defined at §179(b)(5)(B)(i)(II) as one “which is not subject to section 280F.” The heavy-SUV §179 cap and the luxury-automobile caps are therefore mutually exclusive: a vehicle rated above 6,000 pounds meets the SUV cap and no §280F cap at all, while a lighter vehicle meets the §280F caps and never the SUV cap. They are never stacked.26 U.S.C. §179 · 26 U.S.C. §280F

How much can I deduct federally?

Bonus depreciation is automatic and has no ceiling, while §179 is elective, capped, and shrinks once the year's total purchases pass a threshold. A vehicle heavy enough to escape the luxury-auto caps can still meet a §179 cap of its own.

The 100 percent rate reaches only property acquired and placed in service after 19 January 2025. Property acquired after 27 September 2017 but before 20 January 2025 stays under former §168(k)(6), whose applicable percentage for property placed in service during 2026 is 20 percent. A vehicle ordered before the cutoff and delivered this year is a 20 percent vehicle, not a 100 percent one.26 U.S.C. §168(k) · Pub. L. 119-21 · Rev. Proc. 2026-15, 2026-13 I.R.B., §2.02

Where bonus depreciation applies and the vehicle is subject to §280F, §168(k)(2)(F)(i) raises the first-year cap by $8,000. OBBBA left the figure unchanged: Rev. Proc. 2026-15 restates it at the same amount given for 2025.26 U.S.C. §168(k) · Rev. Proc. 2026-15, 2026-13 I.R.B., §2.02

What does New York do differently?

New York accepts the federal figure and then modifies it, and its two modifications behave nothing alike. One is a deferral you eventually recover; the other is a permanent loss.

New York starts from federal adjusted gross income on a rolling basis, then decouples from §168(k) by specific statute rather than by a general static-conformity posture.N.Y. Tax Law §612

New York adds back the entire federal §167 depreciation deduction on §168(k) qualified property under §612(b)(8) — regardless of the asset’s weight — then allows a substitute under §612(k), computed as if the asset had been acquired on 10 September 2001, subtracted under §612(c)(16), with gain or loss adjusted on disposition under §612(l). Because that date is the day before the original bonus window opened, electing out of bonus federally makes the addback and the substitute the same number.N.Y. Tax Law §612 · IT-225-I

New York requires an A-208 addback of the federal §179 deduction claimed on a sport utility vehicle weighing more than 6,000 pounds, unless the taxpayer is an eligible farmer. Unlike the bonus addback, this one is permanent: there is no substitute deduction and no adjustment on disposition.N.Y. Tax Law §612 · IT-225-I

What does New Jersey do differently?

New Jersey never starts from the federal number at all. It keeps a separate basis for the asset, allows far less of it in the first year, and settles the whole difference when the asset is sold.

New Jersey is frozen at the Internal Revenue Code as in effect on 31 December 2002, for assets placed in service on or after 1 January 2004.N.J.S.A. 54A:5-1.2; P.L. 2004, c.65

New Jersey does not adjust the federal number. It keeps its own basis for every affected asset and trues the difference up when the asset is sold.N.J.S.A. 54A:5-1.2; P.L. 2004, c.65 · Worksheet GIT-DEP

New Jersey applies one §179 ceiling to everything, with no business income limitation and no carryforward.Worksheet GIT-DEP

New Jersey has no separate vehicle rules. The return instructions never mention §179, §168(k), SUVs or listed property; every rule lives in Worksheet GIT-DEP.Worksheet GIT-DEP

Federal and New Jersey, side by side — and why New York is not here

Federal law and New Jersey each publish a first-year ceiling, and the two are two orders of magnitude apart. New York publishes none — it takes the federal amount whole and reverses part of it afterwards, which is why it has no row below and why the section above it is written in sentences rather than figures.

Last verified: 2026-09-06