South Carolina has a flat 6.4% state income tax. Charleston and Columbia are growing hubs for remote workers and freelancers.
South Carolina moved to a flat 6.4% income tax rate in 2024 (reduced from a 7% top rate). SC uses the federal standard deduction, keeping SC taxable income aligned with federal.
Use our 1099 calculator — select California from the state dropdown for your exact federal + state total.
South Carolina's flat rate is scheduled to continue decreasing — it was 7% in 2022 and is heading toward 6% by 2027 under current law.
Good news — South Carolina uses the same $14,600 federal standard deduction, keeping SC taxable income close to federal.
Pay at dor.sc.gov. Same dates as federal.
$20K SEP-IRA saves ~$1,280 in SC tax at 6.4%.
SC conforms to federal home office rules.
67¢/mile reduces SC taxable income.
SC generally conforms to the federal QBI deduction.
No Charleston or Columbia city income tax on individuals.
These are estimates. Use the 1099 tax calculator with California selected for your exact number based on your deductions.
California has progressive rates from 1% to 13.3%. Most freelancers earning $50,000–$100,000 pay a 9.3% marginal rate. Use our 1099 tax calculator with California selected for your exact amount.
Yes. Pay federal quarterly estimated taxes at irs.gov/payments and California taxes at ftb.ca.gov. Same 4 deadlines: Apr 15, Jun 16, Sep 15, Jan 15.
Only $5,202 for single filers versus the federal $14,600. This means California taxes $9,398 more of your income than the IRS. At 9.3%, that costs you an additional $874 in state tax.
No. California does not conform to the federal 20% Qualified Business Income (QBI) deduction. Your California taxable income will be higher than your federal taxable income as a result.
At $80,000 net income: save 38–42%. This covers federal SE tax (~14%), federal income tax (~18%), and California state tax (~8–9%). Use the 1099 calculator for your exact number.
ClickTaxEasy calculates your federal + South Carolina quarterly payments automatically based on your tracked income.
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