CliffSafe

South Carolina ACA Subsidy Cliff 2027

Figures verified against official IRS, HHS and CMS sources · Methodology

In South Carolina, a 60-year-old earning one dollar over $63,840 would lose an estimated $10,014 a year in marketplace subsidies in 2027. For a 60-year-old couple, the cliff is $86,560 and the loss is about $24,231.

Calculate your South Carolina subsidy →

Where to enroll

HealthCare.gov

Federal marketplace. CMS

Open enrollment for 2027

Nov 1, 2026 – Jan 15, 2027

Enroll by December 15 for coverage starting January 1.

Average benchmark premium, age 40

$564/mo in 2026 · about $649/mo in 2027 (est.)

10% below the U.S. average of $625. KFF · KFF: 2027 proposed premium increases

Medicaid expansion

Not expanded

Subsidies start at 100% of the poverty line ($15,960 for one person). KFF

How much the cliff costs in South Carolina

Estimated 2027 premium tax credit for households earning exactly the 400% limit, using South Carolina's average benchmark premium. One dollar more and the credit drops to $0.

Household400% FPL limitBenchmark premiumYearly subsidy at the limit
Single, age 40$63,840$649/mo$1,264
Single, age 60$63,840$1,378/mo$10,014
Couple, both 60$86,560$2,756/mo$24,231
Family of 4 (45, 45, 12, 10)$132,000$2,244/mo$13,433

Benchmark premiums are South Carolina averages for 2027 (estimated). Scaled by the federal default age curve (older adults pay up to 3 times as much as a 21-year-old). Prices in your county can be higher or lower. Applicable percentage: 10.22% at the limit (IRS Rev. Proc. 2026-26).

2027 income limits in South Carolina

Marketplace subsidies for 2027 use the 2026 poverty guidelines (HHS 2026 poverty guidelines).

Household100%138%200%250%400% (cliff)
1$15,960$22,025$31,920$39,900$63,840
2$21,640$29,863$43,280$54,100$86,560
3$27,320$37,702$54,640$68,300$109,280
4$33,000$45,540$66,000$82,500$132,000
5$38,680$53,378$77,360$96,700$154,720
6$44,360$61,217$88,720$110,900$177,440

Estimated 2027 benchmark premiums by age in South Carolina

Full monthly price of the second-cheapest silver plan before subsidies, for one person:

Age 21Age 30Age 40Age 50Age 60Age 64
$508$576$649$907$1,378$1,523

South Carolina 2026 average for age 40 ($564, KFF) × 1.15 for 2027. Scaled by the federal default age curve (older adults pay up to 3 times as much as a 21-year-old). Real 2027 prices are published when open enrollment begins.

Medicaid and low-income coverage in South Carolina

South Carolina has not expanded Medicaid. Marketplace subsidies start at 100% of the poverty line ($15,960 for one person), so adults below that and not eligible for traditional Medicaid can fall into the coverage gap.

Staying under the cliff

If your income is close to $63,840 (single) or $86,560 (couple), pre-tax 401(k), HSA and traditional IRA contributions lower the income the marketplace counts. See how to lower your MAGI, or run your exact numbers in the South Carolina calculator. Already enrolled in 2026? Check whether you'll owe money back at tax time.

Frequently asked questions

›What is the 400% FPL subsidy cliff in South Carolina for 2027?

For 2027 coverage, the cliff is $63,840 for one person, $86,560 for two and $132,000 for a family of four. Household income above that gets no premium tax credit.

›Where do I sign up for ACA coverage in South Carolina?

South Carolina uses HealthCare.gov. Open enrollment for 2027 runs November 1, 2026 to January 15, 2027; enroll by December 15 for coverage starting January 1.

›Did South Carolina expand Medicaid?

No. South Carolina has not adopted the ACA Medicaid expansion, so many adults with income under the poverty line ($15,960 for one person) can get neither Medicaid nor a marketplace subsidy.