General Information on Annualizing
If your income fl uctuates or is seasonal, you may be able to lower the amount of one or more required estimated tax
installments by annualizing your income. To see if you can pay less for any period, fi rst complete the Estimated Income Tax
Worksheet (Form ESW), then complete the Estimated Tax Annualization Worksheet (Form ESA). Complete one column
before continuing on to the next. This worksheet annualizes your tax at the end of each period based on a reasonable
estimate of your income and deductions from the beginning of the tax year through the end of each period. If you use the
annualized income worksheet for any payment due date, you have to use it for all subsequent payment due dates. If you
use the annualized income installment method, you will need to include Form ESA with your tax return if you are fi ling on
paper.
Form ESA Instructions
To fi gure the amount of each required installment, the worksheet selects the smaller of the annualized income installment or
the regular installment (that has been increased by the amount saved by using the annualized income installment method in
fi guring any earlier installments).
Line 1
For each period (column), fi gure your total income including your adjustments to income. Include your share of
partnership or S corporation income or loss items for the period.
Line 4
Enter your estimated 2014 itemized deductions such as contributions, medical, and dental expenses for each
period.
Line 6
If you itemized your deductions, multiply line 4 of each column by line 5 and enter the result on line 6.
Line 7
The standard deduction is 20% of line 3, subject to the following limitations:
• Single or married fi ling separately:
No less than $1,900; no more than $4,270
• Married fi ling jointly or head of household: No less than $3,800; no more than $8,540
Line 12
To compute the tax, use the tax table below.
You can make estimated tax payments using the individual income tax payment voucher available at revenue.mt.gov under
Forms & Resources, or you can pay online at revenue.mt.gov under Online Services.
2013 Montana Individual Income Tax Table
If Your Taxable
Multiply
If Your Taxable
Multiply
But Not
And
This Is
But Not
And
This Is
Income Is
Your Taxable
Income Is
Your Taxable
More Than
Subtract
Your Tax
More Than
Subtract
Your Tax
More Than
Income By
More Than
Income By
$0
$2,800
1% (0.010)
$0
$10,100
$13,000
5% (0.050)
$252
$2,800
$4,900
2% (0.020)
$28
$13,000
$16,700
6% (0.060)
$382
$4,900
$7,400
3% (0.030)
$77
More Than $16,700
6.9% (0.069)
$532
$7,400
$10,100
4% (0.040)
$151
For example:
Taxable income $6,800 X 3% (0.030) = $204.
$204 minus $77 = $127 tax
Standard Deduction Worksheet
A standard deduction worksheet must be completed for each period.
Jan 1 - Mar 31
Jan 1 - May 31
Jan 1 - Aug 31
Jan 1 - Dec 31
1st Period 2014
2nd Period 2014
3rd Period 2014
4th Period 2014
1. Enter the amount from line 3 of Form ESA for applicable period. 1.
2. Enter 20% of line 1 ...................................................................... 2.
3. Enter the amount from below that corresponds to your fi ling
status:
Single or married fi ling separately $4,270
Married fi ling jointly or head of household $8,540 ....................... 3.
4. Enter the amount from either line 2 or line 3, whichever is the
smaller ......................................................................................... 4.
5. Enter the amount from below that corresponds to your fi ling
status:
Single or married fi ling separately $1,900
Married fi ling jointly or head of household $3,800 ....................... 5.
6. Enter the amount from either line 4 or line 5, whichever is the
larger. This is your standard deduction. Transfer this amount to
line 7 on Form ESA for the applicable period .............................. 6.
Administrative Rules of Montana: 42.17.305, 42.17.308 and 42.17.309
Questions? Please call us toll free at (866) 859-2254 (in Helena, 444-6900).