OP needs to clarify whether they are the custodial parent and whether there is a need for Financial Aid.
If OP is the non-custodial parent and does not get current on tax filings, the student will be limited to applying to FAFSA only schools, and/or Profile schools that don’t require non-custodial parent financials.
If OP is the custodial parent and does not get current on tax filings, the student will not be able to apply for FA.