Is Your Social Security Taxable? The 2026 Thresholds Every Metro Detroit Retiree Should Know

You spent decades paying into Social Security. Now you're retired, the check finally arrives every month, and somewhere along the way you heard a rumor that the IRS can tax it. You're not imagining it, and you're not alone in not knowing the details. Most Metro Detroit retirees I sit down with have never seen the actual numbers that decide whether their benefit is taxable, because those numbers rarely make it into the conversation until it's already showing up on a tax return. Here's exactly how the rule works, using the real 2026 thresholds, so you can see where you stand before tax season instead of during it.

How the IRS Decides If Your Social Security Is Taxed

The federal government doesn't tax your Social Security benefit based on its size alone. It taxes based on a number called your combined income, and that number is built from three pieces: your adjusted gross income (pensions, 401k and IRA withdrawals, wages and other taxable income), any nontaxable interest you earned during the year (municipal bond interest is the most common source) and half of the Social Security benefits you received.

Add those three together, and the total tells you which of three tiers you fall into: no taxation, up to 50% of your benefit potentially taxable or up to 85% potentially taxable. The word "up to" matters. These percentages are ceilings, not flat rates applied to your entire check, and the actual taxable dollar amount is calculated with its own IRS worksheet. But your tier tells you how much exposure you're working with.

What trips people up most is that half of Social Security itself counts toward the very number that decides whether Social Security gets taxed. It's a circular-feeling rule, and it's exactly why a lot of retirees are caught off guard the first year it applies to them.

The 2026 Thresholds for Single Filers

If you file as a single taxpayer, the 2026 combined income thresholds break down into three tiers. Under $25,000, none of your Social Security is taxable. Between $25,000 and $34,000, up to 50% of your benefit may be taxable. Over $34,000, up to 85% may be taxable.

Consider a single retiree in Wayne County drawing $18,000 a year from a pension plus $4,000 from part-time work, for $22,000 in adjusted gross income, with a $24,000 annual Social Security benefit (half of that is $12,000). Add $22,000 and $12,000, and combined income comes to $34,000, right at the top edge of the 50% tier. A modest raise in part-time hours, or a slightly larger IRA withdrawal in a given year, is enough to push a retiree like this into the 85% tier.

The 2026 Thresholds for Married Filing Jointly

For a married couple filing jointly, the thresholds are higher but the same three-tier structure applies. Under $32,000 in combined income, none of your Social Security is taxable. Between $32,000 and $44,000, up to 50% may be taxable. Over $44,000, up to 85% may be taxable.

Here's a common Metro Detroit scenario: a couple in Oakland County pulling $28,000 combined from a pension and IRA withdrawals, with $1,000 in interest income and $30,000 in combined Social Security benefits (half of that is $15,000). That's $28,000 plus $1,000 plus $15,000, or $44,000 in combined income, landing right on the edge of the 85% tier. Dual-income households, especially where one spouse has a UAW pension and the other has a 401k from a salaried job, cross this line more often than people expect.

Why These Numbers Haven't Moved Since 1984, and What OBBBA Changes

Here's the part that explains why more retirees get pulled into taxation every year without ever having changed anything about their retirement plan: these thresholds are not indexed for inflation. The single filer figures were set in 1984. The 85% tier was added in 1993. Neither has moved since.

Meanwhile, Social Security benefits receive a cost of living adjustment most years, and pensions, wages and investment income have grown across four decades while the threshold stayed fixed. That mismatch, not a change in the tax law itself, is the quiet mechanism pulling more Metro Detroit retirees into taxation with each passing year.

One recent development does help, without solving the underlying issue. The One Big Beautiful Bill Act (OBBBA) created a new senior deduction of up to $6,000 for eligible filers age 65 and older, available for tax years 2025 through 2028. It has its own income phase-out, so it isn't available to everyone, and it doesn't change your combined income or which tier you fall into. What it lowers is your taxable income after that calculation, which can reduce the tax you actually owe. It's up to $6,000 per eligible person, so a married couple who are both 65 or older can deduct up to $12,000. It's worth finding out whether you qualify.

Frequently Asked Questions

Do I have to pay federal tax on Social Security in Michigan?

It depends on your combined income (your adjusted gross income, plus nontaxable interest, plus half your Social Security benefit). Below $25,000 as a single filer or $32,000 filing jointly, none of your benefit is federally taxable. Above those lines, a portion becomes taxable at the federal level.

Does Michigan tax Social Security benefits at the state level?

Michigan does not tax Social Security benefits on the state return. The thresholds and tiers covered in this article apply to federal taxation only, which is where the impact for most retirees shows up.

What counts toward my combined income?

Adjusted gross income (pension income, 401k and traditional IRA withdrawals, wages, part-time income), any nontaxable interest and half of the Social Security benefits you received during the year. Roth IRA withdrawals generally don't add to this total.

Will the new $6,000 senior deduction cancel out the tax on my Social Security?

Not entirely. The OBBBA senior deduction (up to $6,000 for eligible filers 65 and older, tax years 2025 through 2028) can meaningfully reduce your taxable income if you qualify, but it has its own income phase-out and works alongside the combined income formula rather than replacing it.

What can I do about where my combined income lands?

General strategies retirees use include spreading IRA withdrawals across more years, using qualified charitable distributions to reduce adjusted gross income and timing when Social Security benefits begin. Which of these fits your situation depends entirely on your specific numbers, which is worth reviewing with a professional rather than deciding from a general guide.

Ready to See Where You Stand?

This article walks through how the federal Social Security taxation rules work in general, using the real 2026 thresholds, but it isn't individualized tax advice for your specific return. Your exact combined income deserves a real look at your actual numbers, ideally alongside your tax preparer. If you'd like help seeing where your Social Security decision fits with the rest of your retirement picture, Medicare, home strategy, insurance protection, guaranteed income and estate planning, book a free Six-Pillar Retirement Review at LifestyleSafety.com or call (313) 450-9543.

Note: This is general education, not individualized tax advice. Janine Davis is an RSSA and licensed insurance professional, not a CPA or tax attorney.