Follow the steps to fill out the MN Schedule M15 online effectively.

1. Press the ‘Get Form’ button to access and open the MN Schedule M15 in the online editor.
2. Begin by entering your first name and initial, followed by your last name in the respective fields.
3. Input your Social Security Number in the designated area.
4. Determine your required annual payment by calculating your total Minnesota income tax for 2020. Use line 17 of Form M1 for this calculation.
5. Add any Minnesota withholding and credits for 2020, pulling values from lines 20 and 22 of Form M1, and enter the total on line 2.
6. Subtract line 2 from line 1. If the result is less than $500, you can stop here as you do not owe an underpayment penalty.
7. If the result from the previous step is $500 or more, multiply the amount from line 1 by 90% (or 66.7% if you are a farmer or commercial fisherman) and enter this on line 4.
8. To determine payments based on previous years, refer to any required payments you made based on 2018 or 2019 tax amounts and enter the total on line 5.
9. On line 6, record the smaller amount between the totals from line 4 and line 5, as this is your required annual payment.
10. Continue to line 7 if line 6 is greater than line 2. Enter the total of any quarterly estimated tax payments you made for 2020.
11. Add the amounts from line 2 and line 7 and enter the total on line 8.
12. Subtract the amount on line 8 from the amount on line 6 on line 9. If the result is zero or less, stop here as you do not owe a penalty.
13. If you have an underpayment, multiply the value from line 9 by 2% and fill this in on line 10.
14. Follow further instructions from the form to enter any additional necessary calculations for penalties and ensure all information is correct before proceeding.
15. Once completed, save your changes in the online editor. Then, proceed to download, print, or share the form as needed.

Begin filling out your MN Schedule M15 online now!