I've received SSDI for a number of years now. I have a small rental home, and monthly rental income from it. I live with my parents, who are seniors, and the income is shared with them. But I file taxes separately from my parents, who are married. Is my SSDI taxable? I see it's taxable if total income is over a certain amount, but I haven't seen any answers on rental income. I wouldn't consider it a business. I've been paying taxes all these years on the SSDI due to also having rental income, and I'm still not sure if it should be taxable.