State Taxes
South Carolina Back Taxes: What to Do in 2025
The short answer: South Carolina back taxes are unpaid state income taxes owed to the South Carolina Department of Revenue (SCDOR). The SCDOR collects separately from the IRS — it can add penalties and interest, file a state tax lien, garnish wages, and take your refund. Acting before the deadline on your notice keeps your options open.
⏱ Your deadline: respond by the "pay by" date printed on your SCDOR notice — often about 30 days from the notice date. After that, penalties and interest keep growing and the state can move toward a lien, wage garnishment, or refund offset. If you have both state and federal balances, each has its own deadline.
Who you actually owe: SCDOR vs. the IRS
The first step with South Carolina back taxes is knowing who's collecting. The IRS handles federal income tax. The South Carolina Department of Revenue — the SCDOR — handles state income tax. They are two different agencies with two different sets of notices, deadlines, and collection tools. You can owe one, the other, or both.
Check the letterhead on every notice. A federal bill comes from the "Internal Revenue Service." A state bill comes from the "South Carolina Department of Revenue." To see your real numbers, log into your federal IRS online account and your state account at MyDORWAY, the SCDOR's online portal. Don't guess — fixing the wrong balance wastes time you may not have.
Why you owe back taxes in South Carolina
Most state tax debts start one of a few ways:
- You filed your SC return but couldn't pay the full balance.
- You didn't file a South Carolina return at all, and the state assessed tax based on the income it sees.
- Your federal return changed (an audit or a CP2000), and South Carolina adjusted your state return to match.
- You're self-employed or 1099 and didn't make state estimated payments during the year.
Whatever the cause, a state balance behaves a lot like a federal one: it grows. South Carolina charges a late-filing penalty and a separate late-payment penalty, plus interest that compounds. The longer it sits, the bigger it gets — which is why early action almost always costs less.
What happens if you ignore South Carolina back taxes
The SCDOR's collection process is automated and steady. Ignore it and the state moves through these steps:
- Notice of balance due — the first bill, with penalties and interest added. You are usually here.
- Reminder and demand notices — still just bills, but the balance keeps climbing each month.
- State Tax Lien — South Carolina files a lien in its online State Tax Lien Registry, which anyone can search by name. A lien can block selling or refinancing your home.
- Levy and garnishment — the SCDOR can garnish wages, levy bank accounts, and take your South Carolina refund. Through the federal Treasury Offset Program, it can also grab your IRS refund.
None of this requires a court case — state tax agencies have their own administrative collection power, much like the IRS. The good news: every step can be paused by an approved payment arrangement.
How South Carolina collection compares to the IRS
If you also owe the IRS, understanding both timelines helps you prioritize. The federal side follows the well-known sequence of CP14, CP501, CP503, CP504, and a final notice (LT11) before levy — you can read more about the order of IRS collection letters. The federal government has a 10-year collection statute on most balances.
South Carolina runs its own clock. State tax liens are generally enforceable for about 10 years and the SCDOR can renew them — so don't assume a state balance simply "ages off." Because the rules differ from the federal statute, confirm your exact dates before counting on any deadline.
Your options for South Carolina back taxes
The notice makes it sound like "pay now or else." In reality you have choices on both the state and federal side:
- SCDOR payment plan — South Carolina offers monthly installment plans for individual income tax. You can request one through MyDORWAY or the SCDOR's payment plan page. Interest and penalties continue, but an active plan stops garnishment and levy.
- IRS payment plan — for federal balances, a streamlined installment agreement can usually be set up for balances under $50,000 over up to 72 months. Here's how to set up an IRS payment plan online.
- File any missing returns first — if part of your problem is unfiled years, getting current is step one. The state and IRS both treat a filed-but-unpaid balance better than a non-filer.
- Hardship status — if paying anything would leave you unable to cover basic living costs, both the IRS and SCDOR have ways to pause collection.
- Settlement programs — South Carolina and the IRS each have offer/settlement programs for taxpayers who genuinely can't pay the full balance. They're real, but the agency runs the math. Anyone promising to settle your debt for "pennies on the dollar" before reviewing your finances is selling you something — be careful.
- Penalty relief — first-time or reasonable-cause penalty abatement may reduce what you owe, depending on your situation.
How to respond, step by step
- Confirm who you owe. Check the letterhead, then log into both your IRS online account and MyDORWAY to verify the balances.
- Make sure the balance is right. Match each notice to your filed return and your records. State debts can be wrong, especially when they're based on an estimate of unfiled income.
- File anything missing. You can't fully resolve back taxes until every required return is in.
- Set up an arrangement before the deadline. Even a payment plan you start today stops the lien, garnishment, and levy steps from advancing.
- Get a professional review if it's complex. If you owe both the IRS and South Carolina, owe a large balance, or have unfiled years, the order you fix things in changes what you ultimately pay.
Owe South Carolina back taxes and not sure where to start?
Send us a photo of your notice — state or federal. An experienced tax professional will explain exactly who you owe, what your deadlines are, and which options fit your situation. Free, confidential, no pressure.
South Carolina back taxes: common questions
Do I owe the IRS or the South Carolina Department of Revenue?
You can owe both, and they collect separately. Federal income tax goes to the IRS. State income tax goes to the South Carolina Department of Revenue (SCDOR). Each agency sends its own notices and runs its own collection. Read the letterhead and check both your IRS online account and your MyDORWAY account to see exactly who you owe.
Can South Carolina garnish my wages for back taxes?
Yes. The South Carolina Department of Revenue can garnish wages, levy bank accounts, and take your state refund to collect unpaid state taxes. It can also offset your federal refund through the Treasury Offset Program. Setting up a payment plan or other arrangement before the deadline on your notice is the way to stop enforcement.
How long can South Carolina collect back taxes?
South Carolina state tax liens are filed in the State Tax Lien Registry and generally stay enforceable for about 10 years, and the state can renew them. That is separate from the IRS's 10-year federal collection statute. Because the rules differ from the federal clock, confirm your specific dates with the SCDOR or an experienced tax professional.
Does South Carolina have a payment plan for back taxes?
Yes. The SCDOR offers monthly payment plans for individual income tax balances, which you can request through your MyDORWAY account. Interest and penalties keep adding up while you pay, but an active plan stops garnishments and levies. The IRS has its own separate payment plans for federal balances.
Will a South Carolina tax lien show up publicly?
Yes. South Carolina posts state tax liens in an online State Tax Lien Registry that anyone can search by name. A lien can make it hard to sell or refinance property and can affect your finances. Paying the balance or resolving it through an approved arrangement is how you get the lien released.
This guide is general information, not tax or legal advice for your specific situation. Eligibility for IRS and South Carolina programs depends on individual facts and circumstances; no outcome is guaranteed. For state-specific help, you can also contact the Taxpayer Advocate Service on the federal side.