The most important thing to understand about how flipping profits are taxed is that the IRS generally does not treat a flip like a long-term investment property sale, even if you held the property for over a year. Whether your profit is taxed as ordinary income or as a capital gain depends primarily on how the IRS characterizes your activity — as a dealer or as an investor — and that distinction changes the tax outcome significantly. This is directional guidance, not a substitute for a CPA who can apply it to your specific facts.
Dealer vs. Investor: The Distinction That Drives Everything
If you buy, renovate, and sell properties with the intent to resell quickly and do this with regularity — the pattern most flippers actually follow — the IRS is likely to treat you as a real estate dealer for that activity. For a dealer, flipped properties are treated as inventory, not investment property, and profit from selling inventory is ordinary income, taxed at your regular income tax rate, regardless of how long you held the property before selling.
This is a common point of confusion: the hold-it-over-a-year-for-a-better-tax-rate rule that applies to long-term capital gains on investment property generally does not apply to properties held primarily for resale as part of a trade or business. The IRS looks at the substance of the activity — frequency, intent at purchase, and how the property was used — not just the calendar.
Self-Employment Tax Often Applies on Top of Income Tax
Because dealer income is generally treated as earnings from a trade or business, it can also be subject to self-employment tax in addition to ordinary income tax — a cost that doesn't apply to a typical long-term capital gain. This combination is one of the most commonly underestimated costs for active flippers, and it's a major reason many flippers set up a formal business structure and work with a CPA on entity planning (see our guide on house flipping taxes for the business-structure side of this).
When Capital Gains Treatment Might Apply Instead
If a property was genuinely held as a rental or long-term investment — not acquired with intent to flip — and circumstances led to its sale, gain may qualify for capital gains treatment instead. This is a facts-and-circumstances determination the IRS and courts have litigated repeatedly, and it hinges on your documented intent and actual use of the property, not just how you'd prefer to characterize it after the fact. Occasional, infrequent sales are more likely to get this treatment than a pattern of regular, intentional flips.
Deductible Costs That Reduce Taxable Profit
Regardless of dealer or investor classification, your taxable profit is calculated after subtracting your actual costs, not just the difference between purchase and sale price. This generally includes the purchase price, closing costs, the actual cost of renovations and improvements, and selling costs like agent commissions — all of which should be tracked and documented as they happen, not reconstructed at tax time. Which specific costs are deductible immediately versus added to your cost basis depends on your situation, so confirm categorization with your CPA rather than assuming.
Why This Isn't a Do-It-Yourself Determination
Because dealer-versus-investor status depends on the specific facts of your activity — how many properties you've flipped, your stated intent, how the properties were marketed and used — and because the financial difference between ordinary income treatment and capital gains treatment can be substantial, this is a determination to make with a CPA or tax attorney who can review your actual history, not something to self-diagnose from a general guide.
Frequently Asked Questions
Q: If I hold a flipped property for more than a year, do I automatically get long-term capital gains treatment?
A: Not automatically, and often not at all if flipping is a regular activity for you. The IRS looks at whether the property was held primarily for resale as part of a trade or business (dealer status), in which case ordinary income rules generally apply regardless of the holding period.
Q: Does self-employment tax apply to every flip?
A: It typically applies when the activity is treated as a trade or business (dealer status), which is the common case for active flippers. It generally would not apply to a genuine one-off investment property sale taxed as a capital gain. Confirm your specific situation with a CPA.
Q: Can I use a 1031 exchange to defer taxes on a flip?
A: 1031 exchanges are generally intended for investment or business-use property, not property held primarily for resale as inventory (dealer property), so many flips don't qualify. This is a nuanced area — get a definitive answer from a tax professional before assuming a 1031 exchange applies to your deal.
Q: How many flips does it take before I'm considered a dealer by the IRS?
A: There's no fixed number in the tax code — it's a facts-and-circumstances test based on frequency, intent, and pattern of activity over time, not a specific count. This is exactly the kind of determination to review with a CPA who knows your full history.