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    Welcome

  • NOTICE:

    We’re currently updating our Calculator to reflect the recent tax law changes introduced in H.R. 1 (Public Law No. 119‑21), commonly referred to as the "Big Beautiful Bill."

    The tool will be temporarily unavailable while we make the necessary updates to ensure accuracy and compliance. We expect to have it back online soon and appreciate your patience in the meantime.

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  • IMPORTANT: We recommend non-U.S. citizens consult an immigration attorney to determine if you qualify for RETE's program, which has a self-employment component.

  • Sorry, RETE's services are not currently available in your state.

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  • Solar Cost Estimate

    For 2025 Installations
    Solar Cost Estimate
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  • Your Inputs

  • System Price Estimate*

  • Estimated Annual Tax Savings*

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  • *For estimation purposes only. The estimates provided herein are limited in scope and based on generalized assumptions and the inputs provided, and are not guaranteed to be accurate. It is our recommendation to report the annual income generated by your solar power system for the lifetime of the system. In years that do not have adequate expenses (i.e. interest, depreciation) to offset the income, the system's net profit will likely result in a tax liability.

  • Base Case Tax Calculations (No Solar)

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  • Capital Gains Reference Table

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  • Social Security Reference Table

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  • Annual Interest Reference Table

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  • Months 1-18 Interest & Ending Balance Table

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  • Months 19+ Interest and Ending Balance Table

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  • Depreciation Matrix

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  • Year 1 Tax Calculations

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  • Year 2 Tax Calculations

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  • Year 3 Tax Calculations

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  • Year 4 Tax Calculations

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  • Year 5 Tax Calculations

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  • Year 6 Tax Calculations

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  • Years 7-20 Average Interest Calculations

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  • Years 7-20 Average Tax Calculations

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