Deciding to sell your rental property in Boulder is a big step, often driven by a desire to cash out on significant equity. However, unlike selling your primary residence, where you can exclude up to $500,000 in gains (for married couples), selling an investment property comes with a different set of tax rules.
Before you list your property, it’s crucial to understand the potential tax bite so you can plan accordingly. This article will break down the key financial considerations. For a broader look at the selling process, refer back to our Ultimate Guide to Selling Your Rental Property in Boulder.

Understanding Capital Gains Tax
If you bought a rental property in a neighborhood like Martin Acres or Table Mesa a decade ago, its value has likely appreciated substantially. When you sell, the difference between your purchase price (adjusted for improvements) and your sale price is your capital gain.
- Long-Term Capital Gains: If you’ve owned the property for more than a year, you’ll typically pay a federal long-term capital gains tax rate of 0%, 15%, or 20%, depending on your income bracket.
- State Taxes: Colorado also taxes capital gains as regular income, which is currently a flat rate of 4.4%.
The Hidden Cost: Depreciation Recapture
This is the tax that catches many landlords by surprise. Over the years you owned the rental, the IRS allowed you to take a depreciation deduction to offset your rental income. When you sell, the IRS “recaptures” that depreciation by taxing it at a rate of up to 25%.
For example, if you claimed $50,000 in depreciation over 10 years, you could owe up to $12,500 in depreciation recapture tax upon sale, regardless of your capital gains tax bracket.
The 1031 Exchange: Deferring the Pain
For investors who want to sell one property and buy another, the 1031 Exchange is a powerful tool. It allows you to roll all the proceeds from your sale into a new, “like-kind” investment property, deferring all capital gains and depreciation recapture taxes.
However, the rules are strict:
- The 45-Day Rule: You must identify potential replacement properties within 45 days of closing your sale.
- The 180-Day Rule: You must close on the new property within 180 days.
- Qualified Intermediary: You cannot touch the money; a third-party intermediary must handle the funds.
A 1031 exchange is fantastic for building a portfolio, but it doesn’t help if your goal is to simply “cash out” and retire.
Planning Your Exit
If you are looking to sell a distressed property that needs significant repairs before it can fetch top dollar on the retail market, the financial equation changes. In that case, selling “as-is” to a cash buyer might be more advantageous than pouring money into renovations. Read more about this in our article on Selling Distressed Rentals: “As-Is” vs. Rehab.
At Cash for Homes Now, we work with landlords in all financial situations. Whether you’re planning a 1031 exchange or just want to cash out and pay the taxes, we provide a clear, certain sale price so you can plan your financial future with confidence.

