IRS Form 3115: How to Apply Cost Segregation to Existing Properties

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Property owners who wish to take advantage of tax benefits may apply cost segregation to their buildings. This tax planning method speeds up depreciation schedules to increase deductions. It also improves cash flow and defers tax liability.

Investors use cost segregation form 3115 to catch up on accelerated depreciation if they did not do cost seg the year they acquired the property.

As an example, If the investor purchased the building in 2023 and initially filed their tax return using straight-line depreciation, but later decided to perform a cost segregation study in 2024, they would use Form 3115 to “catch up” on the accelerated depreciation they could have claimed on the 2023 return but missed. The 481(a) adjustment, calculated on Form 3115, allows the investor to capture this additional depreciation on their 2024 return without needing to amend the 2023 return.

However, if the investor conducts the cost segregation study in the same year the building was purchased (in this case, 2023), the accelerated depreciation schedule would be properly applied on the 2023 tax return, and Form 3115 would not be required.

The form can be found on the IRS website, or you can request it from the agency. The filing process is complex; it may be best to ask a tax professional for assistance.

Understanding IRS Form 3115 and Its Role in Cost Segregation

Completing Form 3115 is a step in cost segregation. Understanding the form provides insight into the application process.

What is Form 3115?

Form 3115 is not only used for IRS cost segregation. It is used to report any change in accounting methods. People may use it when they:

  • Switch from cash to accrual accounting and vice-versa
  • Change inventory valuation methods
  • Report changes in depreciation methods

Cost segregation represents a change in depreciation methods, making it suited to 3115 reporting.

Form 3115 can be used to report automatic and non-automatic changes. Automatic changes are considered approved. Taxpayers can switch to these methods immediately. The form only alerts the IRS of the changes to ensure the agency aligns with the taxpayer at tax time.

Automatic changes also do not require a fee.

Non-automatic changes require approval. It typically takes the IRS months to respond. These changes are risky, expensive, and come with a high probability of denial.

Form 3115 cost segregation is considered an automatic change if used on an originally filed tax return. It is approved immediately and does not require a fee.

However, if the taxpayer wants to amend a tax return that includes a 3115, the process is not automatic. The taxpayer must formally request approval and pay the fee before filing the amended return.

Why Cost Segregation for Existing Properties?

Cost segregation provides many benefits for property owners as follows:

  • It increases tax savings: Property owners of no-owner occupied residential and commercial properties are typically permitted to claim deductions such as maintenance costs, property management fees, insurance premiums, and depreciation. Depreciation deductions are typically taken over several years. Form 3115 cost segregation speeds up the depreciation process so property owners can take advantage of tax benefits sooner.
  • Increases Cash Flow: Deductions lower taxes so property owners have more money to spend. The increased cash flow allows them to make smart investments.

Key Steps to Applying Cost Segregation with Form 3115

This section will outline the steps to take when leveraging Form 3115 on a cost seg project.

Identifying Eligible Properties

For many commercial and residential rental owners who are just learning about cost segregation, a common question arises, “When should I perform a Cost Segregation Study?”  While there is technically no limit on how soon you can complete a CSS, your property is likely eligible for catch-up depreciation if it was placed in service after 1986.

However, the benefit of a CSS is more significant if conducted within the first several years of ownership. This is because, when you segregate, you reclassify lots of Items to have revised depreciable lives of 5-15 years.  The longer you’ve owned the property before you run a CSS, the more straight-line depreciation you’ve already realized, so the amount of “catch-up” is diminished.

Of course, if you do run a CSS after the first few years of ownership, you’ll need to file a 3115 Change in Accounting Method to catch up on those early years you missed. In doing this, you will essentially be back-tracking to your first year of ownership – it will be as if you ran your CSS in year one.

You should also determine if cost segregation is beneficial based on an initial Matrix Estimate.  If the numbers make sense, you can conduct a cost segregation study to classify personal property components and assign them shorter depreciable lives. 

Section 481(a) Adjustment

Next, if you failed to do cost seg in the year you acquired the property, you must fill out form 3115. Form 3115 filing instructions are complex requiring you to include general information and relevant documents. Additionally, taxpayers focused on cost segregation should pay special attention to 481(a) adjustment depreciation.

Here are some basic guidelines on how to file Form 3115.

  • Obtain the Form: Form 3115 can be found on the IRS website. You can also request it from the agency.
  • Understand the Instructions: Take time to read Form 3115 instructions. They provide information regarding eligibility, required documents, and the necessary steps.
  • Provide General Information: You will be required to fill out general information at the top of the form including your taxpayer identification number, address, and name of the business.
  • Section A: Identify taxpayer and property details.
  • Section B: Provide a detailed description of the change in accounting methods including the reason for the change. Your cost segregation study should outline these processes.
  • Section C: Calculate and report the Section 481(a) adjustment which represents the total depreciation that should have been claimed under the new method compared to what was claimed under the old method on the previous year’s return.
  • Section D: Indicate whether you meet the scope limitations for automatic consent and specify the designated automatic accounting method change number (DCN) for the cost segregation change.

Applying the Correct Depreciation Method

Depreciation methods vary depending on the type of property and classification. Class 27.5-year residential properties and class 39-year nonresidential properties fall under straight-line depreciation. Speak to a tax expert to ensure you follow the instructions for Form 3115 and that your depreciation method is correct.

Filing Form 3115 for Cost Segregation

After Form 3115 is completed, it must be filed with the IRS. These sections will outline the filing process.

Preparing Form 3115 for Cost Segregation

Form 3115 requires documents such as calculations, schedules, statements, and computations. Ensure they are included and referenced in the appropriate sections of the form. Read over the information to ensure it’s correct.

Submitting Form 3115

You may have questions regarding where to file Form 3115 and when to file.

There is no specific deadline for Form 3115. For automatic changes that apply to cost segregation, the form may be filed by the income tax return due date for the year. If the change is non-automatic, it must be filed before the last day of the tax year.

Once completed, you may send Form 3115 cost segregation to the IRS via snail mail or fax, or you can file it electronically. Electronic delivery is recommended as it is fast and traceable.

IRS Review and Approval Process

Cost segregation is typically an automatic change so you can assume it’s approved unless you hear otherwise. You may switch your depreciation methods immediately. If you are filing for a nonautomatic change, you may wait months before finding out if it is approved.

Common Challenges and Mistakes to Avoid

Form 3115 is challenging. Various mistakes can lead to delays in processing, fines, and penalties. Here are some common pitfalls to be aware of.

Avoiding Mistakes When Filing Form 3115

  • Missing and Incomplete Information: Submitting a form with incomplete or missing information will delay the process and could lead to penalties. Double-check the form before submitting it to ensure it’s filled out correctly.
  • Inaccurate Accounting Method Descriptions: You must provide an accurate description of the depreciation methods you currently use and the ones you will update to and explain how they comply with tax regulations.
  • Missing or Incorrect Documentation: Include all the required documentation including financial statements, calculations, schedules, etc.
  • Failure to Follow the Correct Procedure: Documents should be filed promptly and submitted to the correct office. Read form 3115 filing instructions carefully to ensure you didn’t miss anything.
  • Incorrect Numbers: Form 3115 requires several numbers and calculations. Double-check them to ensure they are entered accurately.
  • Choosing the Wrong Form: Use the correct version of Form 3115 from the current tax year.
  • Not Consulting a Tax Professional: Form 3115 can be complicated to fill out, especially if you have unique business needs. Consult a tax professional to ensure it is completed accurately. Your provider will be updated on the latest cost segregation 3115 tax form instructions.

Ensuring Compliance with IRS Regulations

Your form should provide an adequate disclosure of the requested accounting method change. All relevant information should be included such as the current method, the proposed method, the reason for the change, and the impact on taxable income. This information ensures your form complies with IRS tax regulations.

Tax Benefits of Applying Cost Segregation with IRS Form 3115

Tax benefits are typically the main driver behind cost segregation applications. Here are some benefits property owners can look forward to.

Increased Depreciation Deductions

Taxpayers who file Form 3115 cost segregation can take advantage of deductions sooner rather than having them spread out across multiple years. This improves cash flow allowing property owners to invest in new opportunities.

Impact on Future Tax Returns

Taxpayers can plan their tax strategy with cost segregation in mind. They may design build-outs that maximize costs in areas that would be eligible for depreciation or run analyses to match depreciation deductions with cash gains at closing to improve cash flow. They may also consider adding energy-efficient features into the design to take advantage of relevant deductions and credits.

Cost segregation studies can also be revisited to improve future tax return outlooks.

Conclusion

Utilizing form 3115 cost segregation allows property-owning taxpayers to leverage cost segregation in later years of ownership and speed up their depreciation deductions, lower tax returns, and improve tax flow. The form is not easy to fill out. Although this article outlines the process, it’s best to consult a tax expert for assistance. They will ensure the form is filled out correctly and gets you the deductions you deserve.

Frequently Asked Questions

Do I need to amend previous tax returns to apply cost segregation?

Some believe you must amend prior tax returns to apply cost segregation. However, although you could consider amending your tax return for the year you acquired the property, you will still need to complete Form 3115. That’s because the amended return is effectively changing your depreciation accounting method.

Remember, using Form 3115 on an amended return is not automatically approved making the process risky, expensive, and time-consuming.

The good news is that you can utilize the Form 3115 on your next tax return filing and realize the catch-up depreciation benefit via the 481 (a) calculation. This strategy is automatically approved which makes it the preferred method of utilizing the Form 3115 when conducting a cost seg study.

What is the 481(a) adjustment, and how does it impact depreciation?

A 481(a) adjustment reflects a re-computation of depreciation. A one-time deduction is permitted for missed deductions. It makes depreciation computations more accurate, reducing the risk of penalties.

Can I file Form 3115 electronically?

Yes, you can file Form 3115 electronically. E-filing is fast, traceable, and recommended.

Does filing Form 3115 for cost segregation increase audit risk?

If Form 3115 is filed correctly, audit risk is minimal. However, it’s advisable to hire a tax professional to guide you through the process. This ensures that the taxpayer follows “the procedures outlined in the applicable revenue procedure” as noted in the IRS Cost Segregation Audit Techniques Guide.

How long does the IRS take to approve Form 3115 for cost segregation changes?

Most cost segregation changes are automatic and do not require an approval fee. If you are applying nonautomatic changes, it could take several months before your application is approved

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Brody Samson

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About the Author

Brody, a recent Colorado State University undergrad, spent his time in Fort Collins studying Journalism & Media Communication. He interned at College Avenue Magazine and also received a minor in Global & Environmental Sustainability. His lifelong passion for writing drove him to pursue a career in Journalism.

In his free time, he can be found hiking, biking or swimming outdoors. He fiercely enjoys competition in sports along with reading, and playing music on the guitar.

Titan Echo Matrix benefit estimate for a guest lodging property with a $604,990 basis, showing $104,130 in additional first-year depreciation deductions and $41,652 in estimated first-year tax savings