If taxes are filed after the due date, or not paid in full by then, a failure-to-file penalty can be applied by the Internal Revenue Service. Under special circumstances, a six-month extension may be granted. Additionall... More » Business & Finance Taxes

You can file tax returns either with the help of a tax preparer or as a solo effort. A certified tax preparer is likely to pick up any errors to prevent possible audits and can point out possible deductions that could ma... More » Business & Finance Taxes

The Internal Revenue Service does not have an online tax penalty calculator. However, the agency's official website lays out guidelines individuals can use to calculate penalties that accrue from filing or paying taxes l... More » Business & Finance Taxes
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The Internal Revenue Service generally calculates tax penalty at 5 percent of the unpaid taxes for each part of a month or for the entire month a tax return is late, explains the IRS. The penalty starts to accrue the day... More » Business & Finance Taxes

The penalty for paying secured property taxes after the delinquency date varies according to the jurisdiction. In California, it is 10 percent after 5 p.m. on the first installment's delinquency date and 10 percent plus ... More » Business & Finance Taxes

Use Form 4868 to obtain a six-month extension for filing taxes by filing the form by the due date for your calendar year tax return or fiscal year return, explains the Internal Revenue Service. You are, however, not gran... More » Business & Finance Taxes

A tax penalty abatement letter provides the IRS with at least one strong reason that explains why the taxpayer should not have to pay any penalties associated with taxes due. According to CNN Money, this letter should fo... More » Business & Finance Taxes