I can't speak to American taxes, but here in Canada either the individual or caretaker can claim a "disability tax credit," IF we get our doctors to fill out forms and send them off to the tax man to apply for it. Once approved they'll apply it retroactively for 10 years and then it's good for life. People can get the same tax credit for all sorts of disabilities - adhd, autism, being deaf etc. Just needs to be legit and have a doctor fill out and sign off on forms. This is entirely separate from people who collect disability as their main source of income as you don't need to be on disability At All in order to get this tax credit.. which basically just reduces your taxable income/give you a little extra on your tax return.
I don't Know, but I'd imagine there's something similar in the US. Definitely worth a call to a tax preparer type person or two to ask. Then you can do some research online before making a doctors appointment to get forms filled out & have a few duckies in a row. (I Just went through this process for myself and mailed off forms today to see if I'll get approved for tax credit based on formal adhd diagnosis and symptoms that impact my life.)
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for supporting trump. Because doing so is deplorable.