Plumbing and HVAC Equipment and Vehicle Deductions: Section 179, Service Vans, and Tools

By Yarik Yarosh, CPA ·September 5, 2026 ·4 min read

Written by Yarik Yarosh, CPA (US & Canada) September 5, 2026 · FL CPA license AC61704 · CPA Ontario

Plumbing and HVAC businesses are capital-intensive compared to most service businesses. A single service van costs $35,000-$55,000. A sewer camera system costs $5,000-$15,000. An HVAC recovery machine costs $1,500-$3,000. A hydro-jetting machine costs $10,000-$25,000. Diagnostic tools, pipe threading machines, brazing equipment, and specialized hand tools add up quickly. The tax code offers immediate deduction for most of these through Section 179 and bonus depreciation, rather than spreading the deduction over the asset’s useful life.

✓Key takeaway

Section 179 allows a business to deduct the full purchase price of qualifying equipment and vehicles in the year they are placed in service, up to $2,500,000 (2024, indexed for inflation). The deduction phases out dollar-for-dollar when total equipment purchases exceed $4,000,000 in a year. For plumbing and HVAC businesses, virtually all equipment qualifies: service vans (over 6,000 lbs GVWR = no SUV cap), pipe machines, sewer cameras, HVAC recovery and charging equipment, compressors, hand tools (if capitalized), diagnostic equipment, and office equipment. Service vans and trucks over 6,000 lbs GVWR (most cargo vans and pickup trucks used in the trades) are not subject to the $30,500 SUV limitation because they are not classified as passenger vehicles. A $50,000 Ford Transit cargo van used 100% for business can be fully deducted under Section 179 in Year 1. Financed equipment qualifies for Section 179 in the year placed in service, even if the loan payments extend over 5-7 years.

How does a service van purchase work for taxes?

Hypothetical example

Round numbers. A plumbing company purchases a Ford Transit 250 cargo van for $48,000, financed over 60 months ($800/month). The van is used 100% for business.

Section 179 deduction in Year 1: $48,000 (full purchase price).

Tax savings at 24% marginal rate: $11,520
The $11,520 tax savings exceeds the first year’s loan payments ($9,600), so the van generates positive cash flow in Year 1 from the tax perspective.

Without Section 179 (standard MACRS depreciation over 5 years):

Year 1 (20%): $9,600
Year 2 (32%): $15,360
Year 3 (19.2%): $9,216
Year 4 (11.52%): $5,530
Year 5 (11.52%): $5,530
Year 6 (5.76%): $2,764

Section 179 accelerates the entire $48,000 deduction into Year 1 instead of spreading it over 6 years.

Illustrative numbers only, not a real client and not advice for your facts.

What about tools and small equipment?

The IRS allows a de minimis safe harbor election for items costing $2,500 or less per item (or $5,000 per item if the taxpayer has an applicable financial statement, such as audited financials). Under this election, items below the threshold are expensed immediately without needing to use Section 179.

For plumbing and HVAC businesses, this covers most hand tools: pipe wrenches, tubing cutters, flaring tools, multimeters, manifold gauges, and similar items. A $200 pipe wrench is expensed immediately. A $4,500 sewer camera exceeds the de minimis threshold and should be claimed under Section 179.

Larger equipment typically claimed under Section 179:

Sewer camera systems: $5,000-$15,000
Hydro-jetting machines: $10,000-$25,000
Pipe threading machines: $3,000-$8,000
HVAC recovery machines: $1,500-$3,000
Mini-excavators (for trenching): $20,000-$50,000
Diagnostic equipment: $2,000-$5,000

What about the UBIA benefit for QBI?

Equipment purchased under Section 179 still has UBIA (unadjusted basis immediately after acquisition) for QBI purposes. The UBIA is the original cost of the asset, and it supports the QBI deduction above the threshold through the “25% of W-2 wages + 2.5% of UBIA” alternative test. UBIA is counted for the longer of the asset’s MACRS recovery period or 10 years.

A plumbing company with $200,000 in equipment UBIA gets an additional $5,000 (2.5% of $200,000) added to the W-2 wages test. This matters for high-income owners whose QBI deduction might otherwise be limited by the W-2 wages cap.

Related guides:

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Cite this page

Yarik Yarosh, CPA. "Plumbing and HVAC Equipment and Vehicle Deductions: Section 179, Service Vans, and Tools." Blue Cloud CPA, September 5, 2026. https://bluecloudcpa.com/guides/plumbing-hvac-equipment-vehicles-section-179

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.