File Your Taxes What You Need When You File:IDAll Tax documents including W2. Mortgage statement (if applicable)Dependent information including SSN and Birth Certificate All income statements (All 1099 statements (1099-G, 1099-MISC,1099-NEC, 1099-K. 1099-R)If claiming earned income credit, please provide proof of residency for dependents.Note: if you received Child Tax Credit, please provide form 6419.