Real Estate Developer Taxes: The Lots That Are Inventory, the Interest and Taxes You Capitalize, the Common Improvements Spread Across the Subdivision, the Dealer Status That Blocks the 1031, and the Impact Fees

A developer buys land, entitles it, builds roads and utilities, and sells lots or finished homes. For tax, the lots are inventory and every dollar spent to produce them — the land, the engineering, the infrastructure, the interest on the construction loan, and the property taxes during development (those last two unless the developer qualifies for the small business exemption) — is capitalized into their cost and recovered as each lot sells. The profit is ordinary income: a developer is a dealer, and dealers get no capital gain rate, generally no installment method, and no 1031 exchange on the property they develop to sell.

Lots are inventory, and the costs are capitalized

Under the uniform capitalization rules, a developer capitalizes direct costs (land, site work, infrastructure, construction) and indirect costs allocable to the project — engineering, permits, impact fees, legal, insurance during construction, interest on debt used for the project during the production period, and real estate taxes during development. None of it is deducted when paid; it becomes the basis of the lots. The small business exemption — average annual gross receipts of $32 million or less for 2026 ($31 million for 2025), measured together with commonly controlled entities and unavailable to a tax shelter — switches off Section 263A entirely, including its interest rule, but helps a developer less than it seems: land and construction costs are capitalized under the general rules in any case, so the exemption relieves only the indirect cost allocation and the capitalization of interest and property taxes for developers under the gross receipts threshold.

Allocating common costs across lots

Roads, drainage, utilities, entry features, and amenities benefit every lot. Their cost is allocated to the lots by relative value (or another reasonable method) so that each lot's basis carries its share. The alternative cost method lets an accrual-method developer that is contractually obligated or required by law to build the common improvements include in a sold lot's basis its share of their estimated cost — costs incurred plus those expected over the next ten years — before they are built, so early lot sales are not taxed as if the roads were free. The total included for lots sold cannot exceed the common improvement costs actually incurred on that project so far, and changes in the estimate are picked up in later years. Rev. Proc. 2023-9 replaced the old Rev. Proc. 92-29 procedure for tax years beginning after 2022: the method is now adopted with Form 3115 under the automatic method-change procedures, applies to every qualifying project in the trade or business, and requires records supporting the estimates rather than annual statements and statute-extension consents.

Dealer status

| Consequence | Dealer (developer) | Investor | |---|---|---| | Character of gain | Ordinary income, subject to self-employment tax for an individual or general partner | Capital gain | | Installment method | Not available for dealer property (except an interest-charge election for residential lots the developer will not improve) | Available | | 1031 exchange | Not available for property held for sale | Available | | Qualified business income deduction | Available on the business income | Not available on capital gain; rental income qualifies only if the rental rises to a trade or business | | Losses | Ordinary | Capital |

Section 1237 lets a non-dealer investor other than a C corporation who has held land five years subdivide it into lots and sell without becoming a dealer, provided no substantial improvement that substantially enhances the lots' value is made and the investor holds no other real property for sale that year; beginning in the year the sixth lot from the tract is sold, gain on each lot is ordinary income up to 5 percent of its selling price (selling expenses offset that ordinary portion first). A developer with both a development business and long-held investment parcels keeps them in separate entities with separate intent documented at acquisition; the IRS looks at purpose, frequency of sales, improvements, and marketing.

Home construction and the completed contract method

A developer that builds homes under contract with buyers can use the completed contract method for each home construction contract (exempt from percentage of completion regardless of size — and, for contracts entered into in tax years beginning after July 4, 2025, the 2025 law extends the exemption to all residential construction contracts, including multifamily): revenue and the home's costs are recognized when the contract is completed, typically at closing. Speculative homes built without a buyer are inventory sold on closing. Custom homes built under contract for a buyer who owns the lot are construction contracts.

Impact fees, permits, and entitlement

Impact fees paid to the county for roads, schools, and utilities, concurrency contributions, permit fees, environmental mitigation, and the cost of rezoning and site plan approval are capitalized into the project. Entitlement costs on a project that is abandoned are deductible when abandoned. Land donated to the county for a road or a park under a development agreement is a cost of the project, allocated to the lots.

Florida's layer

Florida's documentary stamp tax on deeds — 70 cents per $100 of consideration (60 cents in Miami-Dade County, plus a 45-cent surtax there unless the deed transfers only a single-family dwelling) — is paid on each lot's sale (customarily by the seller) and is a selling expense. The documentary stamp tax of 35 cents per $100 on the construction loan's note and mortgage, and the 2-mill (0.2 percent) nonrecurring intangible tax on the mortgage, are costs of obtaining the financing, recovered over the loan's term rather than deducted when paid. Property taxes during development are capitalized under the federal rules. Florida imposes no income tax on a pass-through developer; a C corporation developer pays Florida's corporate tax.

Worked example. A developer buys 40 acres for $3.2 million, spends $2.6 million on engineering, permits, impact fees, roads, and utilities, and $640,000 of capitalized interest and property taxes during two years of development (its commonly controlled entities together exceed the small business gross receipts threshold, so Section 263A applies), producing 120 lots. The $6.44 million is allocated to lots by relative value; a lot valued at 1 percent of the project carries $64,400 of basis. Under the alternative cost method, lots sold in year two include their share of the amenity center still under construction, up to the common improvement costs incurred on the project by year-end. Each lot sale is ordinary income; the developer takes the qualified business income deduction on it. Thirty lots sell in the third quarter of year two; the owners annualize their estimates. A separate parcel the owner has held for twelve years as an investment stays in its own LLC and should produce capital gain when sold.

Official sources

The statute provides: “In the case of any property to which this section applies, any costs described in paragraph (2)— (A) in the case of property which is inventory in the hands of the taxpayer, shall be included in inventory costs, and (B) in the case of any other property, shall be capitalized.” — Legal Information Institute, 26 U.S. Code § 263A - Capitalization and inclusion in inventory costs of certain expenses, https://www.law.cornell.edu/uscode/text/26/263A

The IRS explains: “Under the Alternative Cost Method, a developer includes the share of the estimated cost of common improvements allocable to the units sold in the basis of such units regardless of whether the costs have been incurred under § 461(h), subject to the alternative cost limitations set forth in this revenue procedure.” — Internal Revenue Service, Rev. Proc. 2023-9, https://www.irs.gov/pub/irs-drop/rp-23-09.pdf

The statute provides: “Any lot or parcel which is part of a tract of real property in the hands of a taxpayer other than a C corporation shall not be deemed to be held primarily for sale to customers in the ordinary course of trade or business at the time of sale solely because of the taxpayer having subdivided such tract” — Legal Information Institute, 26 U.S. Code § 1237 - Real property subdivided for sale, https://www.law.cornell.edu/uscode/text/26/1237

Related guides

• Real Estate Developer Entity and Estimated Taxes: The LLC per Project, the Investors and the Promote, the Developer Fee, the Construction Loan and the Guarantee, the Lot Closings That Land in One Quarter, and the Investment Parcel You Keep Separate
• Flipper or Investor? When Real Estate Is Ordinary Income
• Percentage of Completion: Section 460 for Contractors
• Swapping Investment Property Tax-Deferred: Section 1031
• Opportunity Zones in 2026: The Old Program and the New One

Next step

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