The choice between the and Itemizing happens here. Medical Expenses: Only if they exceed 7.5% of your AGI. State and Local Taxes (SALT): Capped at $10,000.

While not a numbered 1040 schedule in the traditional sense, is an exclusive attachment for families claiming the Child Tax Credit (CTC) or Additional Child Tax Credit (ACTC). It calculates:

If you answered "yes" to any, download that exclusive schedule today. If you answered "no," enjoy the simplicity of filing a 1040 with just Schedules 1, 2, and 3—but remember, the exclusive schedules are waiting for you if your financial life changes.