6 Things South Carolina Retirees Get Wrong About the New $6,000 Senior Deduction
Census figures put more than one in five South Carolina residents at 65 or older.
A new federal deduction worth up to $6,000 landed in front of all of them this tax filing season.
But the rules underneath that number don’t work the way many retirees assume, and a wrong guess can cost all of it.
These are the things South Carolina retirees get wrong about the new $6,000 senior deduction.
Note: This is general information, not financial or tax advice. Tax rules and dollar amounts are subject to change.
1. Thinking Itemizers Get Shut Out
The new senior deduction is aimed at the more than one in five South Carolina residents who are 65 or older.
Many who itemize their federal return wrongly assume the new senior deduction only goes to people who take the standard deduction.
The Internal Revenue Service (IRS) built this deduction to stack on top of either choice.
A retiree itemizing mortgage interest and charitable gifts still claims the full $6,000, or $12,000 for a qualifying married couple, on top of that math.
That math adds up.
Skipping it over a mistaken assumption about itemizing costs a South Carolina couple up to $12,000 in federal deductions they never had to give up.
2. Assuming One Spouse Unlocks $12,000
Married South Carolina retirees often think the $12,000 version of this deduction kicks in as soon as one spouse crosses 65.
That’s not the rule.
The IRS requires both spouses to be 65 or older to claim the full $12,000.
It also requires a Social Security number for each qualifying spouse and a joint return to get there.
A couple with only one qualifying spouse gets $6,000, not $12,000.
A couple who files separately gets nothing under this provision at all.
3. Believing $75,000 Wipes It Out
South Carolina retirees who’ve heard about the income limit often think crossing $75,000 in modified adjusted gross income (MAGI) erases the entire deduction at once.
The threshold is $150,000 for a married couple.
It doesn’t disappear that fast.
The deduction phases out gradually instead, shrinking by 6% of the MAGI above the threshold, so a single filer at $82,000 loses about $420 of it and still keeps $5,580.
It only hits zero at $175,000 for a single filer or $250,000 for a married couple.
The Married Math on the Phase-Out
South Carolina retirees measure this phase-out against modified adjusted gross income (MAGI), calculated before the deduction itself is subtracted, not after.
A married South Carolina couple with $160,000 in MAGI sits $10,000 over the $150,000 threshold.
The IRS calculates 6% of that $10,000 excess once, which comes to $600, then subtracts that $600 from each spouse’s $6,000 share separately instead of from the combined $12,000.
That doubles the reduction to $1,200, dropping the couple’s combined deduction to $10,800 instead of the full $12,000.
Many retirees assume an income that high disqualifies them completely, and it doesn’t.
4. Figuring Social Security Goes Tax-Free
A lot of South Carolina retirees hear about the new deduction and assume it means their Social Security checks stopped being taxed altogether.
They didn’t.
Fidelity’s tax guidance says the deduction lowers total taxable income, which includes Social Security benefits, but it doesn’t turn Social Security into tax-free income on its own.
For some retirees near the edge of a bracket, the lower taxable income nudges less of their benefit into taxable territory.
Many others still owe federal tax on part of their check, the same as before.
5. Expecting a South Carolina Tax Cut
The new federal deduction leads some South Carolina retirees to assume it also shrinks their state tax bill.
State taxes don’t change.
South Carolina’s tax code changed this year under Act 110.
The state return now starts from federal adjusted gross income rather than federal taxable income.
The $6,000 senior deduction is subtracted only after adjusted gross income, on the way to federal taxable income, so South Carolina’s calculation never sees it.
That’s why the number on a South Carolina return stays the same, with or without the federal change.
6. Mixing up the Two Deductions
South Carolina’s Age 65 and Older deduction is worth up to $15,000 for a single filer, or $30,000 when both spouses qualify.
Some retirees who already claim it assume the new $6,000 federal break is what shrinks that amount.
That’s not what’s happening.
The state’s retirement income deduction, worth up to $10,000 per qualifying spouse, reduces that age-65 amount dollar for dollar instead.
A retiree who claims the full $10,000 retirement income deduction sees the $15,000 age-65 deduction shrink to $5,000.
That interaction lives inside South Carolina’s tax rules, not the federal tax code, and has nothing to do with the new $6,000 break.
Claiming It on Schedule 1-A
South Carolina retirees report the new deduction on Schedule 1-A, a form the IRS introduced to handle it and a handful of other new breaks.
There’s no separate application.
The filer needs a valid Social Security number.
Anyone married has to file jointly to get the deduction at all.
That’s the same joint-filing requirement that trips up the spousal mix-up above.
Tax prep programs that support the 2025 and 2026 returns walk many filers through the worksheet automatically.
The harder part is knowing the deduction exists at all, not filling out the form.
Psst! See how South Carolina’s deductions for filers 65 and older stack up against the new federal deduction. Tap a column heading to sort, or search for your filing status.
Banking on It Past 2028
South Carolina retirees planning several years out can treat the new deduction as a four-year window, 2025 through 2028, rather than something built into the tax code forever.
It’s four years, not forever.
The IRS set that end date into the law itself, with no provision on the books today that extends the break automatically past 2028.
That fixed window turns the deduction into a planning tool for retirees weighing bigger moves.
A South Carolina retiree can time a Roth conversion or a large individual retirement account (IRA) withdrawal inside the 2025-2028 window, when the deduction still eases the tax hit.
9 South Carolina Antique Shops Locals Guard Like a Secret
A statewide antique trail lists close to 100 shops, malls, and flea markets across South Carolina, and many people have only ever poked around the shop nearest home.
These are the antique shops South Carolinians in the know keep circling back to.
9 South Carolina Antique Shops Locals Guard Like a Secret
9 Hurricane Prep Steps South Carolina Homeowners Put off Until It’s Too Late
September 10 marks the historical peak of hurricane season, and some South Carolina homeowners are still working through a prep list they started back in June.
These are the hurricane prep steps South Carolinians put off until it’s too late.
9 Hurricane Prep Steps South Carolina Homeowners Put Off Until It’s Too Late
