Montana Form Ext-10 - Extension Payment Worksheet

Montana Form Ext-10 - Extension Payment Worksheet - 2010 Page 2

General Instructions

How can I get an extension of time to file my Montana

are relieved of the late file penalty but you are not relieved

income tax return?

of late payment penalty and interest on your outstanding

Montana income tax liability.

You can be granted an automatic extension of time of up to

six months for filing your Montana income tax return if you

If you do not pay the full amount of your 2010 income

have paid 90% of your 2010 Montana income tax liability

tax liability by April 15, 2011, you will be charged a late

or 100% of your 2009 Montana income tax liability through

payment penalty. This penalty is 1.2% per month or fraction

your estimated tax payments, your withholding tax, or a

of a calendar month on the unpaid tax. This penalty cannot

combination of both your estimated and withholding tax

exceed 12% of your tax due.

payments by April 15, 2011.

If you do not pay your tax liability by April 15, 2011, you will

NEW! - Beginning with the 2010 tax year, you no longer

be charged interest at a rate of 8% per year accruing daily

need to apply for a federal extension in order to receive a

beginning on the due date of your return and continuing

Montana extension.

until your tax is paid.

I have a valid Montana extension but did not pay my

How can I make an extension payment?

entire 2010 income tax liability by April 15, 2011. Am I

You will need to complete this form to determine the

subject to penalties and interest because I paid late?

amount of your extension payment. Attach your payment to

Yes, you are. It is important to note that any extension

the payment form and mail by April 15, 2011.

of time to file your Montana income tax return is not an

If you are a fiscal year taxpayer, your payment is due on or

extension of time to pay your income tax liability. If you

before the 15th day of the fourth month after the close of

have a valid Montana extension but you have not paid

your tax year.

your entire 2010 income tax liability by April 15, 2011, you

Montana Form Ext-10 - Extension Payment Worksheet - 2010 Page 2