Careless mistakes at tax time can leave people paying more money to the IRS. Those mistakes are avoidable through awareness of and strict adherence to the tax rules, including deadlines. Learn the five most common IRS penalties and how to avoid them.
Nobody sets out at tax time to figure out how to pay more money to the IRS. But careless mistakes can leave many people doing just that. Some IRS penalties are for very common mistakes. Those mistakes are avoidable through awareness of and strict adherence to the tax rules, including deadlines.
1. Late filing penalties
The first thing you must remember is the date April 17th, 2018 for the 2017 tax year. Mark it on your calendar, you may even want to circle the date in red.
Nobody likes having to file their tax return, but we all know there is a deadline to file, or at least to request a tax extension. Avoid being in so much angst over taxes that you just don’t file. The IRS knows you exist and they get copies of all those W-2s and 1099s you received in the mail, so they know you made some money last year.
Late filing penalties can add 25% to your tax bill. You also must sign your return. Forgetting to sign a tax return is the most common mistake taxpayers make. The IRS won’t accept your tax return if it is not signed, and that is just the same as not filing it at all.
2. A tale of two mileage rates
If you’re self-employed, and you intend to deduct all the wear and tear you put on your car last year getting the job done, it has to be done according to the new rules. You need to be accurate in your record keeping to avoid penalties.
Should your creative bookkeeping set off red flags to IRS employees, you will have to provide a journal detailing every mile you claimed on your return. You'll also have to turn over receipts for all other questions they may have on your entire tax return.
If you are unable to prove your side, there is a 25% accuracy penalty on top of the additional tax and then the interest on the entire amount.
3. Penalties for math errors
If you’re not good at math, then you had better sharpen your skills if you are preparing your taxes by hand. Math errors are very common on pen-and-paper tax returns, so check and re-check your math.
If the math error results in you paying less tax than you should, the IRS is likely to require that you pay the additional amount of taxes owed plus interest accrued since the due date of the return.
The good news is, when you use TurboTax, we handle all the math and we guarantee that our calculations are 100% accurate.
4. Home office deduction penalties
If you run a home daycare service, use part of your home as an office, or designate a closet or other area to store inventory, you may confidently take a deduction for your home office.
The key is that you use your home office ‘exclusively and regularly’ as your principal place of business. You should only deduct the exact area(s) you use exclusively for business, so if your office doubles as a spare bedroom, you can only deduct the portion of the room used for business.
If the IRS determines the taxpayer does not qualify for the home office tax deduction, the damage can be twofold.
5. Some not-so-charitable penalties for charitable donations
They say it’s always better to give than to receive. In the case of income tax filing that is true. Charitable contributions can lead to additional tax deductions.
In donating clothing and other goods to a charitable organization, the donor must receive an itemized slip from the organization listing what has been donated and the condition of the items. There’s also a place where the person should be putting down a value and then signing the slip.
If you are selected for an audit, the deduction may be denied because there’s nothing specific listed on the slip, like the condition of the items and their value. If denied, the filer will have to pay the additional taxes and perhaps a 25% accuracy penalty on top of the additional tax, and then the interest on the entire amount.
In addition, the deduction may also be denied if the charitable contribution does not meet IRS guidelines for a qualified donation or charity.
A TurboTax solution for every situation
See which tax prep product is right for you
Already have a
TurboTax Online account?
Welcome back! Simply sign in to get started or continue where you left off.
No problem, let's find the TurboTax product that's right for you.