The asbestos removal tax deduction is available to owners of business or rental property, who can either deduct the full cost immediately under Section 198 of the Internal Revenue Code or recover it over 27.5 or 39 years through depreciation. Homeowners removing asbestos from a personal residence get no current deduction, but the cost is added to the home’s tax basis and can reduce taxable gain when the property is sold. Which outcome applies to you depends on how the property is used and, for business property, whether the work is a routine repair or a capital improvement.
Section 198: The Immediate Deduction for Business and Rental Owners
Section 198 lets a business or rental property owner deduct qualifying environmental cleanup costs in full in the year they are paid, even when the work would otherwise have to be capitalized.1Office of the Law Revision Counsel. 26 USC 198 – Expensing of Environmental Remediation Costs The provision was made permanent in 2015. For anyone who qualifies, it’s almost always the better answer than waiting decades for depreciation deductions.
Four conditions have to be satisfied:
- The property is held for use in a trade or business or for the production of income. Personal residences are out.
- The expenditure controls or removes a hazardous substance as defined under CERCLA. Asbestos qualifies.2U.S. Environmental Protection Agency. Asbestos and 120(h) Transfers
- The site is a “qualified contaminated site,” confirmed in writing by the appropriate state environmental agency stating that a hazardous substance has been released or is present at the property.
- Only direct abatement costs count: labor, materials, equipment rental, disposal, and testing. Constructing or replacing the building structure itself is excluded.
The state agency letter is the make-or-break document. Without it, Section 198 is off the table no matter how much asbestos was actually removed. Get the determination before work starts if you can; assembling the paperwork after the fact is much harder.
There is no special form for the election. Individuals put the amount on the “Other Expenses” line of Schedule C, E, or F and write “Section 198 Election” next to it. Entities do the same on the “Other Deductions” line of their return. The election has to be made on a timely filed return for the year the costs were paid or incurred.3Internal Revenue Service. Revenue Procedure 98-47 – Section 198 Election Procedure
One boundary worth noting: Section 198 covers the cleanup only. If you tear out asbestos flooring and then install new flooring, the flooring is a separate capital expenditure on its own depreciation schedule.
When You Have to Capitalize and Depreciate Instead
If you don’t qualify for Section 198 (most often because you never obtained the state contamination letter), the next question is whether the work is a deductible repair or a capital improvement.
Repairs to business or rental property are deductible in full the year you pay for them.4Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses Capital improvements have to be added to the property’s basis and depreciated. The IRS looks at whether the work is a betterment, restoration, or adaptation of a unit of property.5Internal Revenue Service. Tangible Property Final Regulations
Most asbestos removal falls on the capital side. Stripping asbestos-containing floor tile from an entire office and replacing the flooring is a restoration of a building system. Removing asbestos insulation as part of a broader HVAC rebuild rolls into that larger improvement. Smaller, targeted work can still qualify as a repair; enclosing a short section of damaged pipe insulation to address an immediate hazard, without replacing the system, is the kind of activity that keeps the property in its current operating condition.6eCFR. 26 CFR 1.162-4 – Repairs The IRS evaluates each project on its facts.
When abatement has to be capitalized, it’s recovered under MACRS over 39 years for nonresidential real property (offices, warehouses, retail) and 27.5 years for residential rental property (apartment buildings, investment homes).7Office of the Law Revision Counsel. 26 USC 168 – Accelerated Cost Recovery System Both use straight-line depreciation with a mid-month convention, meaning the IRS treats the work as placed in service at the midpoint of the completion month. Report the addition to basis and the annual deduction on Form 4562.8Internal Revenue Service. About Form 4562, Depreciation and Amortization
Section 179 expensing and bonus depreciation generally don’t rescue an asbestos project. Those tools apply to Qualified Improvement Property, which covers interior improvements to nonresidential buildings and specifically excludes changes to a building’s internal structural framework. Standalone abatement rarely fits.
Small-Project Safe Harbors
Two elections in the tangible property regulations can let you skip the repair-versus-improvement analysis on smaller jobs.
The de minimis safe harbor lets you deduct amounts of $2,500 or less per invoice (or $5,000 if you have audited financial statements) rather than capitalizing them.5Internal Revenue Service. Tangible Property Final Regulations A localized encapsulation job billed at $2,200 could fall inside this threshold. The election is made annually by attaching a statement to the return.
The routine maintenance safe harbor covers recurring activities you reasonably expect to perform more than once during the 10-year period after the building is placed in service. Periodic inspection and encapsulation of asbestos-containing materials may fit; a one-time removal and replacement almost certainly does not.
If the Property Is Your Personal Residence
Asbestos removal from a home you live in produces no current-year deduction. The cost is personal, not a business or investment expense. Section 198 requires trade or business use, and Section 162’s repair deduction only applies to business property.
What you do get is a basis increase.9Office of the Law Revision Counsel. 26 USC 1016 – Adjustments to Basis Pay $300,000 for a house, spend $25,000 on abatement, and your adjusted basis becomes $325,000. When you sell, that extra $25,000 reduces the gain the IRS can tax.
For most owners of a primary residence this benefit is theoretical. The Section 121 exclusion lets you exclude up to $250,000 of gain ($500,000 for married couples filing jointly) if you owned and lived in the home for at least two of the five years before the sale.10Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence The basis bump matters when gain would exceed that exclusion, or when the property doesn’t qualify for it at all, as with a vacation home.
Documentation the IRS Expects
Whichever path you take, you need to prove what you spent, what it was for, and why it qualifies for the treatment you claimed.
Have the contractor itemize abatement labor, materials, disposal fees, and third-party air-clearance testing as separate line items, not folded into a lump-sum renovation contract. When abatement is buried inside a general construction invoice, the IRS may disallow a Section 198 deduction outright or reclassify the spending.
For a Section 198 claim, keep the state environmental agency determination letter in your permanent tax file. That letter is what proves the property was a qualified contaminated site, and it’s the first thing an examiner will ask for.
For capitalized costs, keep the original invoices, the completion date used for the mid-month convention, and your depreciation schedule for the entire recovery period and three years beyond. For homeowners adding costs to basis, keep the invoices and payment records indefinitely. You’ll need them, sometimes decades later, to calculate gain on the sale.