New HomeownerBuyer

October 30, 2026

If you just bought a home in Upstate South Carolina and you live in it full time, there's one piece of paperwork I don't want you to skip: the legal residence application. It's the difference between being taxed at a 4% assessment ratio or a 6% ratio, and on most homes that's real money every single year.

I bring this up with every client we close with, because the county won't apply it for you automatically.

4% vs. 6%: what it means

South Carolina taxes property based on an "assessment ratio." Under state law (S.C. Code Section 12-43-220), the home you live in as your legal residence and domicile, plus up to five contiguous acres, is assessed at 4% of its fair market value. Other real property, like a second home, a lake rental or investment property, is generally assessed at 6%.

That two-point difference is a 50% jump in the assessed value your millage gets applied to. On top of that, owner-occupied homes in South Carolina generally aren't charged school operating millage, which is another big reason the primary-residence rate matters. Your county assessor can show you exactly how it applies to your bill.

Who qualifies

The home has to be your domicile, meaning the place you actually live and intend to stay. A few rules from the statute:

You have to own and occupy the home.
You can't claim another South Carolina residence for the 4% rate.
The home can't be rented out for more than 72 days in a calendar year.
The burden of proof is on you, the owner-occupant.

What to bring

Each county has its own form, but they ask for similar things. Anderson County's application, for example, asks for copies of driver's licenses or SC ID cards and vehicle registrations showing your new address for every owner-occupant and spouse. The assessor can also ask for your most recent SC income tax return. Trusts, LLCs, military orders and divorce situations need extra paperwork.

Tip from experience: get your SC driver's license and car registrations updated to the new address as soon as you move. That's usually the hold-up.

The deadline

State law says you must apply on or before the first penalty date for the tax year you're claiming. In practice that's usually January 15 (or the next business day). If you miss it, you generally lose the 4% rate for that year, although the statute does allow refunds for overpaid taxes in some cases if you can prove the home was your legal residence. Don't count on that. Just file early.

And one warning: if you get the 4% rate and later stop qualifying (say you move out and rent the house), you need to tell the assessor. The statute allows a penalty of 100% of the tax savings plus interest if you don't.

Where to file in the Upstate

File with the county assessor where the home is located: Oconee, Pickens, Anderson or Greenville. Most offer the form online. If you closed with us, call the office and we'll point you to the right form.

We live by "Be the kind of Realtor you'd want your Mother to have." Part of that is making sure you're not paying more tax than you owe after closing day.

Frequently asked questions

Does my lake house qualify for the 4% rate?

Only if it's your legal residence and domicile. A second home or vacation home is generally taxed at 6%.

Do I have to reapply every year?

Generally no, as long as you keep qualifying. You do need to notify the assessor if your situation changes.

I missed January 15. Now what?

Call your county assessor right away. The local taxing authority may extend the deadline for reasonable cause, and the statute allows refund requests in some cases.

This article is general information, not tax or legal advice. Confirm details with your county assessor or a tax professional.