What creators in South Carolina actually owe.
Every number on this page is computed by Post’s tax engine — the same one that runs the dashboard — from South Carolina’s 2026 rules, not copied from a blog post. Verified against S.C. Code §12-6-510(C)(1), §12-6-1140(15); H. 4216 / Act 110 of 2026 (signed 2026-03-30). $30K bracket threshold CPI-indexed annually per §12-6-520..
South Carolina rebuilt its income tax for 2026 — a simpler two-tier structure and a new state-specific deduction with a bureaucratic name: the South Carolina Individual Adjusted Deduction, or SCIAD. It replaces the role the federal standard deduction used to play on the state return, and it phases out as your income rises.
The catch for creators is conformity — or the lack of it. South Carolina does not honor the federal QBI deduction; the state effectively adds it back. If you've gotten used to QBI quietly shaving your federal taxable income, don't carry that assumption onto the state return — South Carolina computes your bill on a bigger base than a copy of your federal numbers would produce.
The structure is also built to move: the bracket threshold indexes with inflation each year, and the law includes a trigger that can walk the rate down in future years if state revenue grows enough. Post's engine carries what's actually signed — not what's projected.
Pay South Carolina estimates at MyDORWAY (SC Department of Revenue). Federal payments go through IRS Direct Pay — Post pre-fills both.
A $8,000/mo creator in South Carolina, single filer
Effective rate: 24% of net profit. Your expenses, filing status, and income change this — run your own numbers below.
Generally yes, if you expect to owe $1,000+ in federal tax for the year — platform and brand-deal income has no withholding, so the IRS expects four payments a year, and South Carolina runs its own estimated-payment schedule on top. Post computes both and reminds you before each date.
It depends on income and filing status — flat percentages lie. As one honest reference point: a single filer earning $96,000 a year with $19,200 of business expenses owes about $18,326 all-in (federal + self-employment + South Carolina) — an effective 24% of net profit. Post recalculates your number as money lands.
Gifted product you keep is generally taxable income at fair market value on your federal return — and state taxable income starts from the federal numbers. Post logs PR at FMV in seconds so April doesn't surprise you.
No — South Carolina starts from federal figures but adds the QBI deduction back, so the state taxes a base that ignores it. Post's engine models this correctly, which is why your South Carolina estimate won't match a back-of-napkin percentage of your federal taxable income.
The South Carolina Individual Adjusted Deduction is the state's own standard deduction, created when it restructured its tax for 2026. It phases out as AGI climbs — with a quirky rounding rule on the reduction — and Post applies it automatically from your filing status and income. Nothing to claim; it's in the math.