I have compiled a list of the most common tax filing mistakes that most taxpayers made.

Forget to sign your return – you must sign your taxes for the IRS to process your taxes.

Filling out tax forms with an incorrect SSN – the IRS computers will reject your deductions and credits if your SSN is wrong.

Forget to tell your CPA you took an ealy distribution on an IRA – if you are under the age of 591/2, a distribution on an IRA is considered early and subject to a 10% additional tax.

Fail to report non-deductible IRA contributions – All contributions to an IRA must be reported.

Standard mileage vs. actual expenses for business use of car – you can only choose one method when you start using the car and continue with that method until you replace the car.

Incorrectly reported estimated tax payments – if the tax payments did not match, IRS will send a notice of tx due with penalties and interest.

Exceeding the mortgage interest deduction limit – the tax laws limit the amount of deductible interest to the first $1.1 million in total debt.

John Jeng, CPA