The National Weight Control Registry: Is it Usefu inl Helping Deal with Our Obesity Epidemic? james o. hill phd', holl; wyatty md', suzann; phelane phd^, ren; a wing,
Failure-to-File Penalty. Also known as the âlate filing penalty,â this fee may be assessed if you do not file your tax return (or tax extension application) by the proper due date. This deadline is April 15 for most individual taxpayers, and March 15 for most businesses.lso known as the âlate payment penalty,â this fee may be assessed if you do not pay your income tax liability by the proper due date. This deadline is April 15 for most individual taxpayers, and March 15 for most businesses.
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.