1. Actually, a penalty is calculated if the following conditions are not met:
- The IRS requires taxpayers to pay tax as the income is earned, either 100% of the prior year tax or 90% of the current year tax to avoid penalties and interest. (For taxpayers with adjusted gross income greater than $150,000, these percentages are 110% and 100%, respectively.)
2. It depends. There is an option in TurboTax to calculate the penalty and send it with your return or have the IRS calculate it.
For more information, see:
How do I add Form 2210?
Why is my Form 2210 not calculating lines 18-26 correctly?
