Idaho vs South Carolina Paycheck Comparison 2026

At a $100,000 salary, Idaho results in $12 more annual take-home pay. Idaho has a flat state income tax of 5.70%. All taxable income is taxed at the same rate. South Carolina uses a progressive income tax with 3 brackets ranging from 0.00% to 6.40%.

The difference depends on salary. At $50,000, the gap is $341/yr. At $150,000, it grows to $364/yr. At $300,000, the difference is $1,422/yr.

Yes. Federal income tax, Social Security, and Medicare are the same in every state. Only state income tax differs. This calculator shows the combined effect of federal and state taxes on your take-home pay.

South Carolina is cheaper to live in. Cost of living in Idaho is 5% higher than in South Carolina. Idaho's Regional Price Parity is 95.9 and South Carolina's is 91.3 (US average = 100).

Yes. South Carolina has a lower cost of living than Idaho (index 91.3 vs 95.9). Housing is typically the biggest difference between the two states.

Yes. Idaho has a higher cost of living (index 95.9) compared to South Carolina (index 91.3). The national average is 100. Housing costs are typically the largest driver of the difference.

At a $100,000 salary, take-home pay of $73,485 in Idaho has the purchasing power of $77,187 in South Carolina terms. Conversely, $73,473 in South Carolina equals $69,949 in Idaho terms. After adjusting for both taxes and cost of living, Idaho comes out ahead.

The overall cost of living is 5% different between Idaho and South Carolina. Living costs are about 4% below the national average Living costs are 9% below the national average After taxes and cost of living, Idaho gives you more purchasing power on a $100,000 salary.

Idaho requires residents to file a state income tax return annually, typically due April 15. South Carolina requires residents to file a state income tax return annually, typically due April 15. If you move between states mid-year, you typically file a part-year resident return in each state for the income earned while living there. Each state has its own tax return form — check your state's department of revenue website for the correct form and e-filing options.