Sales tax on a new roof in New Jersey
Generally, a full roof replacement is treated as a capital improvement and is exempt from NJ sales tax with a completed Form ST-8, while a repair is taxable. Here's the difference.
This is one of the most-asked and least-answered questions in the trade, and the short version is that it depends on whether the work counts as a capital improvement or a repair. The distinction is the state's, not ours.
Full replacement — generally exempt
A complete roof replacement is generally treated as a capital improvement: it adds to the value of the property and becomes part of it. With a completed Form ST-8 — the state's Certificate of Exempt Capital Improvement — that work is generally exempt from New Jersey sales tax.
Repairs — generally taxable
Fixing a section of flashing, replacing a handful of blown-off shingles or patching a leak keeps the roof in its existing condition rather than improving the property. That kind of work is generally taxable.
What Form ST-8 is, and who fills it in
ST-8 is the New Jersey certificate that records a job as an exempt capital improvement. The contractor and the property owner both complete part of it, and you keep a copy. Ask for it — a contractor who does not know what ST-8 is has told you something useful about how they run their paperwork.
One honest caveat
We are roofers, not tax advisors, and this page is general information about how New Jersey treats roofing work — not advice about your specific job or your specific tax position. Check the current rules with the New Jersey Division of Taxation, or with your own accountant, before you rely on any of it.
Wondering whether your roof is a repair or a replacement in the first place? That question decides the tax treatment as well as the price — here is how we work it out .
Get it in writing before you decide
A free visit and an itemised written estimate — scope, materials and cost. Call (973) 707-2154 or request one below.