Multifamily real estate investors often focus on metrics such as rent growth, occupancy, and cap rates. These are all important and relevant. But the best investors and operators optimize something far less visible and often more powerful: Adjusted Cost Basis.
What is Adjusted Cost Basis and why does it matter?
The cost basis is more than just your simple purchase price; it is an IRS-defined calculation that reflects all of an investor’s capital in a deal, including the purchase price, closing costs, and capital improvement expenses. Adjusted cost basis is the cost basis less the depreciation.
Cost basis = Purchase price + Closing costs + CapEx (Capital Expenditures)
Adjusted cost basis = Purchase price + CapEx + Closing costs - Depreciation
Taxable capital gains = Sale price - Closing costs - Adjusted cost basis
Let’s break down each component to better understand the power of basis.
Purchase price and Closing costs: These are concepts with which we are all familiar. The lower the better. Clean and simple.
CapEx: Serves two purposes. Firstly, it lowers your taxable gain (thereby increasing your cost basis). For example, adding the $1M on top of the purchase price and closing costs will reduce the taxable gain at exit. Secondly, value-add capital expenditures can increase the NOI, which increases the sale price and profit, thus increasing the taxable capital gain. This increase is a positive thing because after all the goal is maximizing after-tax returns.
When CapEx is executed well, it enhances both current returns (cash flow from NOI) and after-tax outcomes (capital gains).
Depreciation: A Strategic Tradeoff. This likely requires its own write-up, but in short, while depreciation reduces your basis over time, it increases your taxable gain at exit. However, during the hold period, it shelters income and enhances after-tax cash flow, often making it a worthwhile tradeoff for investors.
Basis is not a lever that can be pulled but more like a scorecard that reflects the cumulative impact of your decisions (i.e., the price you choose to pay, how much to invest into CapEx, deciding when to sell, etc.).
Let’s walk through a scenario and see how basis saves investors money in real numbers:
Say you purchase a rental property for $10M with closing costs of $100K, and CapEx of $1M, and $500K depreciation taken. So your adjusted basis is $10.6M ($10M + $100K + $1M - $500K).
Now assume you sell the property for $15M and the selling costs are $150K. Your net sale proceeds are $14.85M.
At first glance, many investors assume the capital gains tax would be simply on the difference between purchase and sale price: $5M. In reality, taxes are calculated based on your adjusted basis. So in our scenario the taxable capital is a gain: $14.85M – $10.6M = $4.25M.* That's a $750K difference, and depending on your tax bracket the approximate capital gains tax rate could be as high as 25%. That's $187K is tax savings to the investor!
At PREP we more than understand the basis - we actively anticipate how it will evolve throughout the life cycle of a hold. We think ahead about how today’s decisions will show up years later at the time of exit for a deal, both in returns and in taxes. A well-managed basis gives investors flexibility. It reflects disciplined acquisition, thoughtful capital deployment, and strategic timing of exit - all of which drive both returns and after-tax outcomes.
