You know, don't push the button, don't push the button, don't push the button, and then some socko finish. I was pleasantly surprised by how the book bobs and weaves and is a lot more active and entertaining that just that. MILD SPOILER, so don't tell your four year old.
The late payment penalty applies to any portion of your federal tax that remains unpaid as of the due date, typically the tax filing date. The IRS imposes a failure-to-pay penalty of one half of one percent for each month or part of a month that the tax goes unpaid.
Estimated Tax Penalty. If you're self-employed or a freelancer and have an annual tax liability of $2,000 or higher, you must file quarterly estimated tax statements and make payments along with these estimates. The penalty for underpayment is 0.5 percent of the amount due for each month it is not paid.RS Income Tax Underpayment Penalty. Miscalculating your tax liability can be costly. The penalties for paying less than you owe on your federal tax returns usually costs a lot more than the actual taxes due, so it's wise to avoid underpaying.