Cost Segregation and EV Charging Stations: What the Section 30C Credit Sunset Means for Rental Property Depreciation
EV Chargers Have Become a Standard Rental Property Amenity
Over the past few years, installing an EV charging station has gone from a novelty upgrade to a near-standard expectation at short-term rentals and an increasingly common ask from long-term tenants. Airbnb and VRBO hosts routinely see "EV charger available" as a searchable filter, and property managers report that listings with Level 2 chargers command higher nightly rates and better occupancy in markets with strong EV adoption. For long-term rental owners, offering charging access has become a differentiator in competitive multifamily and single-family rental markets, particularly in states like California, Colorado, and parts of the Northeast.
What has not kept pace is investor understanding of how this equipment is actually treated on a tax return. Many owners assumed the Section 30C federal tax credit would keep subsidizing these installations indefinitely. That assumption is no longer true, and the change matters for anyone planning a charger installation for the remainder of 2026 or beyond.
The Section 30C Credit Has Expired
Under IRC Section 30C, taxpayers who installed qualified alternative fuel vehicle refueling property, including EV charging equipment, in an eligible census tract could claim a credit worth 30 percent of the cost of the property for individuals (capped at $1,000 per item) or 6 percent for businesses (capped at $100,000 per item, rising to 30 percent if prevailing wage and apprenticeship requirements were met). The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, moved up the credit's expiration date. Property must now be placed in service on or before June 30, 2026 to qualify. Anything installed after that date is no longer eligible for the Section 30C credit at all.
For rental property owners who installed chargers earlier this year, the credit is still available on that year's return. For anyone considering an installation now, that particular incentive is off the table. This is the point where a lot of investors stop paying attention to the tax side of the decision, and that is a mistake. The credit was never the only benefit, and depending on how the property is structured, it may not have even been the largest one.
How EV Charging Equipment Is Actually Classified for Depreciation
Independent of the Section 30C credit, EV charging equipment has its own depreciation life under MACRS, and it is a short one. The charging unit itself, along with associated networking hardware, payment systems, and dedicated switchgear, is generally treated as 5-year property under IRC Section 168, consistent with the treatment of other freestanding business equipment under Rev. Proc. 87-56. That puts it in the same general recovery category as the appliances, furniture, and other components a typical cost segregation study identifies inside a rental property, rather than the 27.5-year residential or 39-year nonresidential life that applies to the building shell.
The classification gets more nuanced once you look past the charger hardware itself. Trenching, conduit, and underground electrical runs between the panel and the parking area are typically treated as 15-year land improvements. A new dedicated electrical panel or service upgrade that also supports the building's general electrical load can be harder to separate cleanly and may need to be allocated between the charger installation and the structure itself. This is exactly the kind of component-by-component judgment call that an engineering-based study is built to make correctly, and it is also exactly where a generic percentage-based estimate tends to get it wrong.
Where a Cost Segregation Study Fits In
If you are installing a single charger as a standalone project on a property that has never had a cost segregation study, you do not necessarily need a full study just to depreciate the charger. A competent CPA can classify and depreciate that one asset directly from the invoice. But most charger installations do not happen in isolation. They happen alongside a renovation, a new construction project, an acquisition, or a broader electrical upgrade, and in those situations the charger becomes one line item among dozens that a study needs to correctly classify.
This is also where the look-back study becomes relevant. If you installed a charger two or three years ago and it has been quietly depreciating over 27.5 or 39 years buried inside the building's basis because nobody flagged it separately, a study performed today can correct that treatment going forward through a Form 3115 change in accounting method, without amending prior returns. For an investor who added a $6,000 to $15,000 charging setup as part of a larger project, that correction alone can be worth ordering a study for.
100 Percent Bonus Depreciation Is the Benefit That Actually Matters Now
Here is the part that gets lost in the disappointment over the Section 30C credit expiring: bonus depreciation is now permanent at 100 percent for qualifying property acquired after January 19, 2025, under changes made by the OBBBA to IRC Section 168(k). Any asset with a MACRS recovery period of 20 years or less, which includes 5-year charging equipment and 15-year land improvements, is eligible to be fully expensed in the year it is placed in service.
Practically, that means a charging station classified correctly does not spend five years slowly depreciating. It gets written off entirely in year one, the same tax year the equipment goes into service. The IRS issued interim guidance on the restored bonus depreciation rules in Notice 2026-11, and the mechanics work the same way for a $12,000 EV charger installation as they do for the appliances and flooring identified in a full cost segregation study. The credit was worth up to $1,000 for an individual installation. A full first-year deduction on a $12,000 installation, at a combined federal and state marginal rate in the 30 to 37 percent range, is worth considerably more than that credit ever was, and it required no special election beyond correct asset classification.
A Practical Example
Consider an investor who adds two Level 2 chargers to a long-term rental duplex in August 2026, after the Section 30C credit has expired. Total installed cost, including the charging units, conduit, trenching, and a panel upgrade, comes to $18,000. Under straight-line treatment buried in the building basis, that cost would generate roughly $650 a year in depreciation on a 27.5-year residential property. Properly classified, with $9,000 of charger and switchgear hardware treated as 5-year property and $9,000 of trenching and conduit treated as 15-year land improvements, the entire $18,000 is eligible for 100 percent bonus depreciation in the placed-in-service year. At a 32 percent marginal rate, that is roughly $5,760 in tax savings realized immediately, compared to about $208 in the first year under straight-line treatment. The Section 30C credit, had it still been available for a business installation at the standard 6 percent rate, would have been worth $1,080 on this project. The depreciation benefit dwarfs it.
If You Already Claimed the Section 30C Credit
Investors who placed chargers in service before the June 30, 2026 cutoff and claimed the credit do not need to worry about losing that benefit. The credit and accelerated depreciation are not mutually exclusive in the way solar's investment tax credit basis reduction rules work. However, taxpayers who claimed the 30C credit should confirm with their CPA that the depreciable basis of the equipment was adjusted correctly, since the credit does reduce basis by the credit amount claimed under IRC Section 30C(g). Missing that adjustment is a common error that either overstates depreciation or creates a mismatch if the IRS ever reviews the return.
Common Mistakes Investors Make With Charger Depreciation
The most frequent error is simply capitalizing the entire installation cost into the building's basis and depreciating it over 27.5 or 39 years without separating out the equipment and land improvement components. The second most common mistake is failing to track business versus personal use when a charger also services an owner's personal vehicle at a property that is not 100 percent rental use, which can limit the deduction under the mixed-use rules similar to those that apply to other rental property equipment. The third is treating a charger installed as part of a larger capital project as a single lump-sum line item on the depreciation schedule instead of breaking it into its correct component lives, which either understates the deduction or creates an unsupportable position if challenged.
None of these are complicated to avoid, but they require someone to actually look at the invoice and classify the components correctly rather than defaulting to whatever the building's overall depreciation life happens to be.
The Bottom Line
The Section 30C credit's expiration on June 30, 2026 closes one incentive for EV charger installations, but it does not change the fact that charging equipment qualifies for accelerated depreciation and, more importantly, 100 percent bonus depreciation in the year it goes into service. For an investor weighing whether a charger installation still pencils out without the credit, the answer is almost always yes, and the depreciation benefit alone is typically worth several times what the credit would have provided. The key is making sure the equipment gets classified correctly rather than absorbed into the building's basis, which is precisely the kind of detail an engineering-based cost segregation study is built to catch, whether the charger is part of a new project or something installed years ago that has never been properly separated out.