Section 01

South Carolina's retirement
tax landscape

Social Security is fully exempt. Pensions get a $10,000/$20,000 exclusion for those 65+. Retirees 65+ get a $10,000/$20,000 combined retirement income exclusion.

Understanding how South Carolina treats each type of retirement income is essential for planning your withdrawals, conversions, and Social Security timing. The interaction between state and federal taxes determines your true after-tax income each year.

💡
State and federal taxes are independent
South Carolina calculates its own deductions and exemptions separately from the federal return. Income that falls below the federal standard deduction may still be taxable in South Carolina, and vice versa. Plan for both independently.
Section 02

What's taxed
and what's not

Here's how South Carolina treats the major types of retirement income.

TAX-FREE
Social Security

Fully exempt from state income tax.

PARTIAL
Traditional 401(k) / IRA

Partially exempt with deductions or exclusions.

PARTIAL
Pension income

Partially exempt or exempt with age requirements.

TAX-FREE
Roth 401(k) / IRA

Qualified distributions are fully exempt at both the state and federal level.

Section 03

South Carolina's
tax brackets

South Carolina uses progressive tax brackets with a top rate of 6%. For single filers: 0% up to $3,460, 3% to $17,830, 6% above $17,830 (single). The standard deduction is $15,750 for single filers and $31,500 for married filing jointly.

South Carolina's 0% bracket on the first $3,460 plus the standard deduction provides meaningful relief. The top rate of 6% applies above $17,830 of taxable income.

📊
Top rate: 6%

Progressive rates mean each dollar is taxed at its own bracket rate. The marginal rate on the next dollar matters most for planning.

📊
Standard deduction

$15,750 single / $31,500 married filing jointly. Income below this threshold is tax-free at the state level.

Section 04

Strategies to reduce your
South Carolina tax burden

The $10,000/$20,000 retirement exclusion for 65+ is the key planning lever. Roth conversions before 65 avoid state tax on converted amounts. The SS exemption is a strong advantage for retirees. Federal tax planning — withdrawal sequencing and SS timing — drives the primary savings opportunity.

Roth conversions before retirement. Converting traditional IRA balances to Roth during lower-income years means paying South Carolina tax now at lower rates, then taking tax-free Roth withdrawals later. See the full Roth conversion strategy guide.

Withdrawal sequencing. The order you draw from different accounts each year matters. Drawing from taxable brokerage accounts before tapping tax-deferred accounts can keep your South Carolina ordinary income lower. Read more in which accounts to withdraw from first.

Social Security timing. Optimizing when you claim Social Security affects both your federal and state tax picture. See when to start Social Security.

Section 05

Model your South Carolina
retirement taxes

The interaction between South Carolina's tax rules and federal taxes is too complex to estimate by hand. A year-by-year projection shows your actual tax burden for every year of retirement.

Drawdown Arc's projection engine includes South Carolina's full bracket structure, standard deduction, and retirement income exemptions. Set your state to South Carolina and enter your account balances, pension, and Social Security timing — the projection shows your South Carolina state tax alongside federal tax for every year.

State tax modeling is a Pro feature. The free calculator shows your full federal tax projection — upgrade to Pro to add South Carolina (or any of the 50 states) to your model.

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Related guides

Roth conversion strategy → Which accounts to withdraw from first → When to start Social Security →

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modeled

Year-by-year projections with real tax math. Free, private, no signup required.