Back taxes, and other debts, can come back to haunt you, especially if you've been on disability and return to employment. The time to put your finances in order is before you go to work, not after. He can also negotiate on your behalf with California's Franchise Tax Board. Once a tax bill accumulates, it shows up on credit reports for a long, long time. The most important thing is to establish a contact, so the taxing authority knows there's a willingness to solve the problem, and that the problem was caused by extenuating circumstances.
Somebody leaves work on disability.
They think they're going to die. So they forget about their tax problems and run up their credit cards. If a taxpayer's financial situation changes, they have an obligation to notify the taxing authority and work out a payment plan. If there is disability and income from public benefits, this is a hardship, and the government has a classification called non-collectable status. The amount owed comes out of the normal collection process, so revenue agents don't come to your house, or your bank, or your employer.