South Carolina Estate Tax Exemption: What's Actually Owed After a Death

Most executors in South Carolina start their research assuming they face a state estate tax bill. They budget time for it. They worry about it at 2 a.m. Then they discover there is no state estate tax — and immediately make the opposite mistake: assuming there's nothing to pay.

The truth sits between those two positions. South Carolina is one of the most favorable states in the country for wealth transfer at death, but that headline obscures real financial obligations that catch executors off guard. Understanding exactly what exists, what doesn't, and what acts like a tax without being called one is how you protect the estate.

South Carolina Has No Estate Tax and No Inheritance Tax

South Carolina abolished its state estate tax for all individuals dying on or after January 1, 2005. It has never enacted a separate inheritance tax. Both statements appear on the South Carolina Department of Revenue (SCDOR) website and are confirmed by Title 12 of the South Carolina Code.

This means:

• The executor pays no state tax calculated on the total value of the estate before distribution
• Beneficiaries pay no state tax calculated on what they personally receive, regardless of their relationship to the deceased

If a parent leaves their adult child $600,000 in South Carolina, that child owes South Carolina nothing on that transfer. No forms, no withholding, no exemption calculations required.

The South Carolina estate tax exemption is, in practical terms, infinite — because there is no tax to exempt from.

The Federal Estate Tax Still Applies Above the Threshold

The federal estate tax is a separate matter entirely. The IRS taxes estates whose total gross value — including all assets plus historical taxable gifts — exceeds the unified credit exemption. For 2024, that threshold is $13.61 million per individual, or $27.22 million for a married couple using portability.

The vast majority of South Carolina estates fall well below this threshold. For the small number that don't, the executor must file IRS Form 706 within nine months of the date of death, regardless of whether any state estate tax exists.

One planning note worth flagging: the elevated federal exemption was established by the Tax Cuts and Jobs Act and is scheduled to sunset at the end of 2025 absent congressional action. Without an extension, the threshold could revert to roughly $7 million (inflation-adjusted) in 2026. Estates in the $7–14 million range should track this legislative development closely.

What South Carolina Does Tax: Three Hidden Obligations

The absence of a state estate tax doesn't mean the estate faces no South Carolina tax liability. Three separate obligations catch executors by surprise.

1. The Decedent's Final Individual Income Tax (SC1040)

Death doesn't cancel the decedent's obligation to file a state income tax return for their final year. The executor must file Form SC1040 covering January 1 of the year of death through the exact date of death.

South Carolina's income tax rate is currently 6.0% at the top marginal bracket for 2025, with the state moving toward a two-rate structure targeting 1.99% on income up to $30,000 and 5.21% above that — subject to revenue triggers set by the Board of Economic Advisors. The legislature also replaced the federal standard deduction with the South Carolina Income Adjusted Deduction (SCIAD), which offers up to $15,000 for single filers and $30,000 for married couples filing jointly, but phases out entirely between $40,000 and $95,000 of federal adjusted gross income for single filers.

The final SC1040 is due April 15 of the year following death. Paying an estimated balance through the SCDOR's MyDORWAY portal automatically grants a filing extension; the extension covers the filing deadline only, not the payment.

2. Fiduciary Income Tax on the Estate Entity (SC1041)

When the decedent dies, their assets transfer into the probate estate — a separate legal entity that can earn income. Bank interest on probate accounts, dividends from brokerage holdings, and rental income from estate-owned property all count. The moment the estate earns $600 or more in gross income during a tax year, the executor must file Form SC1041.

This is where estates get ambushed. The tax brackets on trust and estate income compress dramatically compared to individual brackets. An estate hits South Carolina's top 6.0% rate almost immediately. If the estate distributes income to nonresident beneficiaries — heirs living outside South Carolina — the executor is also required to withhold tax at the top marginal rate and remit it directly to the SCDOR using Form SC41.

The SC1041 deadline for a calendar-year estate is April 15. For a fiscal-year estate, it's the 15th day of the fourth month after the close of the tax year.

3. Probate Court Fees Scaled to Estate Value

South Carolina's county probate courts charge a mandatory filing fee calculated on the gross value of the estate. These fees scale aggressively and function as a de facto tax on wealth transfer, even though they aren't labeled as one.

The statewide fee structure:

An estate appraised at $325,000 incurs a mandatory fee of $95.00 plus 0.15% of $225,000, producing a $432.50 court obligation that has nothing to do with income or estate taxes — it's simply a cost of transferring property through probate.

Estates under $45,000 in gross personal property value (with no real estate) may qualify for summary administration via the Small Estate Affidavit process, which bypasses the creditor publication period and dramatically reduces administrative costs. This threshold was raised from $25,000 to $45,000 by Act No. 26 in May 2025.

The Step-Up in Basis: The Real Wealth-Transfer Tool

Because South Carolina estates aren't fighting a state estate tax, the most important financial mechanism for beneficiaries is the federal step-up in basis under IRC § 1014. When an heir inherits a capital asset — real estate, a brokerage account, closely held business interests — the asset's cost basis resets to its fair market value on the date of death.

This eliminates capital gains taxes on all appreciation that occurred during the decedent's lifetime. A parent who bought a Greenville home for $80,000 decades ago and died when it was worth $500,000 passes a $500,000 basis to their heir. If the heir sells immediately at $500,000, they owe no federal capital gains tax. Selling while the parent was alive — or gifting the property — would have preserved the original $80,000 basis and triggered massive capital gains at sale.

To defend this step-up in the event of an IRS audit, the executor needs a professional date-of-death appraisal establishing the fair market value at death. This is not optional paperwork — without it, the IRS has no documented basis to accept.

If you're managing a South Carolina estate and want a clear sequence for what to file and when — from the final SC1040 through the SC1041, the creditor claim window, and the probate inventory — the South Carolina Final Tax & Estate Tax Guide covers the full administrative roadmap in plain language, with checklists and filing timelines built for executors working without an attorney.

Key Deadlines Reference

• April 15: Final SC1040 and SC1041 (calendar-year estates) due
• 30 days after appointment: Notify heirs and devisees (Form 305ES)
• 90 days after appointment: File Inventory and Appraisement (Form 350ES)
• 8 months: Creditor claim window closes after first publication
• 9 months from death: IRS Form 706 due (only if estate exceeds federal threshold)

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