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Free 263A Calculator

See what your project could deduct sooner. Enter a few details and the estimate updates as you type.

263A Benefit Calculator

Add your project details to estimate the construction costs you may be able to deduct sooner under the 263A small business exemption.

Your total project cost, not counting land. You can include $ or commas (e.g., $12,000,000), or use shorthand like 12M.

Optional. Land is not included in the estimate.

The date the property was ready and available for use.

The tax year the study is for.

Disclaimer: This calculator is for informational purposes only and gives a preliminary estimate based on your input and the results of our published studies. Actual results vary with your project, timing, and tax position, and this tool is not tax, legal, or financial advice. A formal study by qualified professionals helps ensure compliance. Please consult your tax advisor.

How the calculator works

We apply a percentage to your development cost. Across our studies, eligible costs have ranged from 12% to 31% of construction cost, so the calculator shows both ends: Low uses 12% and High uses 31%. See real projects in our published case studies.

Tax savings multiplies that benefit by the tax rate you choose. Land is not included. Real results depend on the project, the costs, the timing, and the taxpayer. A screening with our team gives you a real answer, and your CPA determines the filing position.