PAST DUE RETURNS Frequently, tax obligation financial obligation can be mainly dealt with by just filing unpaid returns. The IRS usually enforces penalties and interest on tax due from missing returns, so unless you submit a charge reduction, those will still likely have actually to be paid. It is also completely possible that your client might even be qualified to a reimbursement that they have actually lost out on due to missing out on returns. The only means to discover is by simply gathering their financial records for that year and submitting the past due returns.