
Tax Knowledge (Guides and FAQs)
Information to help better understand taxes, from prefiling checklists to helpful filing information to what to do after filing and everything in between.
54 articles
How do I find last year's AGI?
Where can I find my IP PIN?
What if I lost my Identity Protection PIN?
What's a Self-Select PIN?
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?
How can I find my AGI if I used a different tax platform last year?
When do I need to file an amended return?
How do I file an amended return (Form 1040-X)?
Why is my amended return taking so long?
What are the tax extension rules?
Do I qualify for an automatic extension?
