If your spouse is under age 65 and not receiving taxable social security disability, your spouse will need to have a physician's statement to receive tax credits for the disabled.
Per IRS Publication 554 Chapter 5 Credit for the Elderly or the Disabled: page 28:
Permanent and total disability.
- You are permanently and totally disabled if you cannot engage in any substantial gainful activity because of your physical or mental condition.
- A physician must certify that the condition has lasted or can be expected to last continuously for 12 months or more, or that the condition can be expected to result in death.
In the Personal Info section of TurboTax, you may enter "Disabled" under occupation.
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