How Much Can a Cost Segregation Study Save You? The Numbers Explained

The question every property owner asks is simple: is this actually worth it?

The answer depends on your property value, property type, tax bracket, and how long you have owned the property. This article walks through how the math works and what realistic savings look like for different scenarios.

How the Savings Are Calculated

A cost segregation study does not create new deductions. It accelerates deductions you were already going to take over 27.5 years and moves a significant portion of them into the first 5 to 15 years. The savings come from the time value of money: claiming $50,000 of depreciation in year one is worth more than claiming it in year 20.

The actual tax savings in year one depend on how much of your cost basis gets reclassified into shorter recovery periods and what tax rate those deductions reduce.

A Concrete Example

Take a single-family rental purchased for $450,000 with a $50,000 land value, giving a depreciable basis of $400,000.

Under the standard 27.5-year schedule, the annual depreciation is about $14,545 per year.

Here is an illustrative allocation, not an average result or a completed client study:

The 5-year and 7-year personal property qualifies for MACRS accelerated depreciation. Combined with the 15-year land improvements, a significant portion of the reclassified amount can be deducted in year one instead of being spread over 27.5 years.

At a 32% federal rate, an additional usable deduction of $60,000 would have a $19,200 tax effect. Whether this property produces that deduction requires a service-date calculation, bonus eligibility review, and comparison with depreciation without the study.

What Affects How Much Gets Reclassified

Several factors determine how much of your cost basis qualifies for shorter schedules:

Furnished vs. unfurnished. Short-term rentals and furnished properties typically have significantly more 5-year personal property. Furniture, appliances, and decorative items all qualify for shorter schedules and are present in higher quantities in furnished units. Separately purchased furnishings need their own basis and must not be counted twice.

Short-term rental tax treatment. STR investors who satisfy a complete material participation test and have an average guest stay of 7 days or less may be able to apply the accelerated depreciation against W-2 or business income, not just passive rental income. This makes the effective value of the deduction significantly higher for high-income earners. Your CPA determines whether you qualify for this treatment.

Property age and condition. Newer properties or recently renovated properties with updated fixtures, flooring, and finishes tend to have more reclassifiable components at higher values.

Outdoor features. Properties with driveways, patios, landscaping, pools, and fencing have more 15-year land improvement components, which can add up quickly.

Property value. In general, higher-value properties have more absolute dollars to reclassify, even if the percentage is similar.

The ROI Calculation

Compare the study fee with the value of deductions you expect to use, their timing, and potential sale consequences. A large deduction does not necessarily produce an immediate cash benefit.

A short holding period, suspended passive losses, or limited reclassifiable basis can change whether the study is worthwhile.

Use the free savings calculator to get an estimate based on your specific property value and tax bracket.

Recapture: The Honest Picture

At sale, Section 1245 assets can trigger ordinary-income recapture. Unrecaptured Section 1250 gain on qualifying real property may be taxed at up to 25%. The asset classification and transaction determine the treatment; 25% is not a blanket cap on recapture.

Depreciation allowed or allowable can affect sale calculations. Compare the present value of earlier deductions with the projected sale tax, fees, holding period, and tax rates rather than assuming acceleration always wins.

Section 1031 generally applies to qualifying real property, not personal property. An exchange should not be assumed to defer every tax consequence of assets identified in a cost segregation study.