If you own real estate and your CPA has never mentioned Form 3115, you may be sitting on tens of thousands of dollars in recoverable tax deductions. Form 3115, officially titled "Application for Change in Accounting Method," is one of the most powerful and most underutilized tools in the real estate investor's tax arsenal.

What Form 3115 Does

Form 3115 allows you to correct depreciation errors from prior years and take the entire cumulative adjustment in the current tax year. This is not an amended return -- it is a prospective change in accounting method that the IRS has authorized through automatic consent procedures under Revenue Procedure 2015-13 (as modified by subsequent revenue procedures).

Here is a practical example. Suppose you purchased a $2 million rental property five years ago. Your CPA has been depreciating the entire building on a straight-line 27.5-year schedule, producing annual depreciation deductions of approximately $65,000.

Now suppose you get a cost segregation study that identifies $400,000 of the depreciable basis as 5-year, 7-year, and 15-year property. Under the correct depreciation method, those components should have been depreciated on accelerated schedules from the year of acquisition.

Form 3115 calculates the difference between the depreciation you actually claimed over the past five years and the depreciation you should have claimed with cost segregation. That cumulative difference -- which can easily exceed $200,000 -- is taken as a single "Section 481(a) adjustment" on your current-year tax return.

In plain terms: you get to catch up on five years of missed accelerated depreciation in one year. No amended returns. No IRS approval needed. Just file Form 3115 with your current-year return.

Why Most CPAs Do Not File Form 3115

There are several reasons:

Unfamiliarity: Form 3115 is not a common form in general tax practice. Most CPAs encounter it rarely if ever. The form itself is complex, requiring specific knowledge of automatic change procedures, Section 481(a) adjustment calculations, and designated change numbers under the relevant revenue procedures.

Risk aversion: Some CPAs are aware of Form 3115 but hesitant to file it because they view accounting method changes as aggressive. In reality, the IRS has established automatic consent procedures specifically because they want taxpayers to correct depreciation methods. Filing Form 3115 is not aggressive -- it is following established IRS procedure.

No financial incentive: A CPA who charges $2,000 to prepare your return has no economic incentive to spend additional hours analyzing your depreciation schedules, coordinating a cost segregation study, and preparing Form 3115. The work required far exceeds what their fee supports.

The Automatic Consent Procedure

This is the part that surprises most investors: you do not need IRS approval to file Form 3115 for most depreciation changes. The IRS has designated specific "automatic" changes that taxpayers can make without requesting a letter ruling or advance permission. Depreciation method changes for assets described in IRC Section 168 are generally automatic changes.

You simply file Form 3115 with your timely filed return (including extensions), attach a copy of the form to the national office, and take the Section 481(a) adjustment. The IRS processes tens of thousands of these annually. It is a well-established, routine procedure.

Who Benefits Most from Form 3115

  • Investors who acquired property 2+ years ago without a cost segregation study
  • Property owners whose CPA has been using incorrect depreciation methods
  • Investors who renovated properties and did not separate renovation components from the building structure
  • Anyone who has been depreciating land improvements (parking lots, landscaping, fencing) over 27.5 or 39 years instead of the correct 15-year schedule

How AE Tax Advisors Handles Form 3115

At AE Tax Advisors, Form 3115 is a core part of our service for real estate investors. When we onboard a new client, our three-year lookback analysis specifically evaluates every property for depreciation errors and cost segregation opportunities.

When we identify opportunities, we coordinate the cost segregation study, calculate the Section 481(a) adjustment, prepare Form 3115, and integrate the catch-up deduction into the client's current-year return. The entire process is handled by our team under Christina Nortman's direction.

The results are often dramatic. A single Form 3115 filing can produce $50,000 to $300,000 or more in cumulative catch-up depreciation, translating to $20,000 to $120,000 in immediate tax savings.

Do Not Leave This Money on the Table

If you own real estate and have never heard of Form 3115, you almost certainly have recoverable deductions sitting in your prior-year returns. Contact AE Tax Advisors at (631) 614-5762 or team@aetaxadvisors.com to schedule a complimentary evaluation. We will tell you within one conversation whether a Form 3115 filing makes sense for your portfolio.

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