Tax filing basics
This section helps you understand the basics of filing your taxes, including what information you’ll need from last year and the key rules that apply to most taxpayers.
32 articles
What’s the difference between AGI and modified AGI?
How do I find my prior-year AGI if someone else claimed me as a dependent?
How do I find last year's AGI?
How do I find last year's tax return?
What's an IRS IP PIN (Identity Protection PIN)?
Where can I find my IP PIN?
What if I lost my Identity Protection PIN?
What's a Self-Select PIN?
What’s my tax filing status?
What personal info do I need before filing?
What income docs do I need for filing?
What info do I need to claim credits and deductions?
What are key federal tax filing dates for 2026 (Tax year 2025)?
How can I find my AGI if I used a different tax platform last year?
What’s a Trump Account and how do they work?
Is my Social Security income taxable?
What are april’s Maximum Refund and Accuracy Guarantees?