The tax season typically lasts from January 1 to April 15 of each year. The IRS tax season officially ends this year on April 18th.  In order to have enough time for us to prepare your tax return, we need your individual tax organizer submitted no later than March 18th. If we don’t receive it in time, we’ll need to file for an extension.  If you don’t think you’ll be able to send us your tax organizer information by March 18th, please alert us so we can prepare an extension. At that time you’ll need to pay any anticipated taxes in order to avoid penalties. Typically fines are calculated based on your outstanding taxes, usually 5% for each month your turn is late for a maximum penalty of 25%. When you work with ARR & Co, we strongly encourage filing extensions rather than missed deadlines.