Here’s a ‘quick n dirty outline’:

• “…Retirees born before 1946 are not likely to see any change in the tax treatment of their benefits.
• Retirees born during the years 1946 through 1952 will only be taxed on benefits that exceed $20,000/single filer or $40,000/joint filers.
• Retirees born after 1952 will be taxed on all of their benefits until reaching age 67…”

More at

• https://networthbasics.com/category/retirement/
• Retirement
• http://www.michigan.gov/taxes/0,4676,7-238-43513-452340–,00.html
• https://states.aarp.org/michigan-taxes-2012-retirement-benefits/