Your disability status, maritial status, number of dependents and student status have nothing to do with the requirement to file. Basically, if you have *REPORTABLE* income then you're required to file. Even if that reportable income is not taxable. Basically, if you receive a tax reporting document for any income received in the tax year, then it's reportable income. But as covered in the links below you still may not need to file if the total reportable income received is under a certain threshold. What that threshold is, depends on the type of income and who paid it to you.
Be aware that not all disability pay is tax free. But if you receive disability pay from the Veterans Administration you will *NOT* receive any type of tax reporting document for that pay because it's not taxable or reportable on any tax return - ever.
