What should I know about tax penalties for late filing in Idaho?
When filing taxes in Idaho, it is important to understand the potential penalties associated with late filings. The Idaho State Tax Commission imposes penalties for individuals and businesses that do not file their tax returns by the designated deadline. Generally, if a taxpayer fails to file their income tax return on time, they may be subject to a late filing penalty. This penalty can be calculated as a percentage of the unpaid tax.
Typically, the penalty for late filing is five percent of the unpaid amount for each month the return is late, up to a maximum of twenty-five percent. It is essential to note that this penalty applies to returns that are submitted after the due date, including extensions. It is also relevant to mention that separate from the late filing penalty, there may be additional penalties associated with the failure to pay the tax owed by the due date.
Additionally, interest may accumulate on any unpaid tax. The interest rate for late tax payments is determined by the Idaho State Tax Commission and may change periodically, so it is beneficial to check their official website for the most current information.
Timely submission of tax returns and payments is crucial in order to avoid these financial penalties. If a taxpayer believes that they will not be able to meet the deadline, it may be wise to consider filing for an extension, if applicable. Always refer to the Idaho State Tax Commission's official webpage for the most accurate guidance regarding penalties and filing requirements.

Answered Jun 22, 2025
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