Follow the steps to effectively complete the MS Form 71-661.

1. Press the ‘Get Form’ button to access the document and display it in the editor for completion.
2. Begin by entering your personal information. This includes your first name, initial, last name, and social security number. If applicable, repeat this process for your spouse.
3. Fill out the mailing address section. Provide your complete address, including the street number, city, state, and zip code. If this address has changed since your last tax return, ensure to check the appropriate box.
4. Indicate your preferred contact method by entering your phone number and the best time to call.
5. Provide your banking information by specifying the name of your bank or financial institution.
6. Next, complete the employer information section by filling in the name and address of your employer, including city, state, and zip code.
7. In the payment information section, enter the tax year for which you are making the installment request, the total amount owed, the payment amount you are submitting with your tax return, and the amount you intend to pay monthly.
8. Once all fields are completed, review your information for accuracy and completeness to avoid delays.
9. Finally, save your changes, and you may choose to download, print, or share the completed form as needed.

Complete your MS Form 71-661 online today to manage your installment agreement efficiently.