Travis Bunn

Founder, AppealDesk · Published March 27, 2026 · Updated August 25, 2026

South Carolina Homeowners Can Go Four Years Without a Property Tax Notice. Your Escrow Account Never Gets a Year Off.

Updated August 2026

South Carolina taxes an owner-occupied home at just 4% of its fair market value under S.C. Code Section 12-43-220(c), the lowest owner-occupied assessment ratio anywhere in the country. That number alone makes South Carolina's property tax bills look small next to states assessing at 10% or more of value. What it doesn't do is make your assessment more current. Counties run their own quinquennial reassessment programs under S.C. Code Section 12-43-217, revaluing every parcel once every five years on each county's own independent cycle (a county can push its cycle back one additional year by ordinance), and in between those cycles your value does not move at all unless you sell the property, transfer an interest in it, or add improvements. A notice only shows up in your mailbox when the assessor raises your fair market value by $1,000 or more, mailed by July 1 in a normal year or October 1 in a year your county is rolling out a reassessment, under S.C. Code Section 12-60-2510. Put those two rules together and most South Carolina homeowners get no assessment notice at all in roughly four years out of every five.

That absence of a notice is not the same as an absence of an assessment worth checking. Your county's comparable sales keep moving every year whether or not the assessor mails you anything, and in the one year a notice does arrive, you have 90 days from the mailing date to file a written objection with the assessor, not 90 days from whenever you happen to open the envelope. Meanwhile your mortgage servicer is not waiting on a notice from the county to decide whether to review your escrow account. Federal law requires an escrow analysis once every twelve months, on a schedule set by your loan, and that analysis pays whatever bill the county treasurer sends regardless of whether this was a reassessment year, a sale year, or one of the quiet years in between.

What "Over-Assessed" Actually Means in South Carolina

South Carolina's 4% ratio and its 15% cap sound like they protect homeowners from an inflated bill, and most of the time they do, but only if you haven't bought the home recently. Here is the mechanic worth understanding before you appeal anything: S.C. Code Section 12-37-3140 caps how much your assessed value can climb at each quinquennial reassessment to 15% over the value from the last reassessment cycle, and that cap holds even if the actual market moved further. But the cap does not apply in two situations: new construction or improvements in the year they are first taxed, and any property that has gone through what the statute calls an assessable transfer of interest, or ATI, essentially a sale or change of ownership, defined at S.C. Code Section 12-37-3150. When an ATI happens, the 15% cap resets. The property is reassessed to its full current fair market value the year the new value is first taxed, uncapped.

Practically, that means a homeowner who has owned the same house for fifteen years and never sold is protected by the 15% ceiling every reassessment cycle no matter how much comparable sales moved. A homeowner who just closed on a purchase is not protected by anything; the county can, and routinely does, assess the new owner at the full price just paid or the appraised fair market value, whichever the assessor determines, with no 15% brake. If you bought recently, do not assume the assessed value on your first bill is wrong just because it jumped sharply from what the seller was paying. It may be exactly what the ATI rule requires. Check comparables against current fair market value, not against the seller's old, capped assessed number.

Three Levels, and Your Escrow Account Doesn't Watch Any of Them

South Carolina's appeal path has three levels. All of them start from the same 90-day trigger: the date the assessor mailed your property tax assessment notice.

1. County Assessor (Informal). File your written objection within 90 days of the notice's mailing date under S.C. Code Section 12-60-2510. The assessor typically holds an informal conference and responds in writing.
2. County Board of Assessment Appeals. If you disagree with the assessor's written response, you have 30 days from the date of that response to appeal to the county board.
3. Administrative Law Court. If you disagree with the county board's written decision, you have 30 days from that decision to request a contested case hearing before the Administrative Law Court, South Carolina's judicial-level venue for tax disputes.

Compared to some states in this series, three levels is a short ladder. What isn't short is the 90-day opening window, generous by national standards, or the fact that the window only opens the year a notice actually arrives. Miss the 90 days in a notice year, and there is no second chance until the next event triggers a new notice, which could be the next quinquennial reassessment four years later, or never, if you don't sell or improve the property before then.

Meanwhile: The RESPA Clock That Doesn't Check Whether a Notice Ever Arrived

Federal law, not South Carolina law, governs your escrow account, and it runs on its own clock entirely. Under Regulation X, 12 CFR 1024.17(c)(3), your mortgage servicer must analyze your escrow account once per computation year, a twelve-month cycle tied to your loan, not to your county's five-year reassessment schedule. That analysis looks at what the servicer actually paid the county treasurer and projects the coming year's disbursements. It does not check whether you are mid-appeal. It does not check whether this was even a notice year. It simply pays whatever the county billed, built off whatever value is currently on the roll.

That mismatch cuts both ways in South Carolina. In the four years out of five when no notice arrives and nothing about your assessment has changed, your escrow analysis is a non-event; the servicer pays the same bill and moves on. In the one year your county reassesses, or you trigger an ATI by buying, your servicer's next analysis will reflect whatever the new bill says, appeal or no appeal. If you filed an objection in December and are still waiting on an Administrative Law Court hearing date the following fall, your escrow account has already funded at least one tax cycle at the disputed, higher number, and a second cycle may come due before your case resolves.

A worked example (hypothetical, not a real case)

Say a homeowner in Lexington County closes on a home in a year her county happens to be running its quinquennial reassessment. Because she just bought the property, the ATI rule applies: the county assesses her at the full fair market value the assessor determines, South Carolina's median of $208,000, with no 15% cap to soften it. Because her new value reflects an increase of more than $1,000 over the prior owner's assessed value, the county mails her a notice by October 1 under the reassessment-year rule. At the 4% owner-occupied ratio, that is an $8,320 assessed value; at South Carolina's 0.57% effective rate, that works out to roughly $1,186 in annual property tax, or about $99 a month if it were spread evenly. (Rates, millage, and ratios vary by taxing district, so treat this as illustration, not a quote.) She objects to the assessor in December, within her 90-day window. The assessor denies the objection in February. She appeals to the County Board of Assessment Appeals in March, is denied again in June, and requests a contested case hearing before the Administrative Law Court in July. A hearing date does not land until the following year.

• Year one, tax bill: Escrow pays the full $1,186 based on the original noticed value. Appeal still pending.
• Year one, escrow analysis: No change. The analysis simply confirms the servicer paid what the county billed.
• Year two, tax bill: If the case is still unresolved, escrow pays again at the same disputed value.
• Administrative Law Court decision, say a 10% reduction: New fair market value roughly $187,200, new assessed value roughly $7,488, new annual tax roughly $1,067, a savings of about $119 a year.
• Refund and go-forward adjustment: Only happens at the next escrow analysis after the county actually updates the roll and issues a corrected bill.

Two full years of escrow disbursements at the disputed value, for a case that started with a notice she might not have gotten at all in four years out of five. That gap is the entire reason this article exists.

When the Win Finally Reaches Your Escrow Account

Whichever level finally rules in your favor, the mechanics from there are the same. The assessor updates the roll with the corrected value, the county treasurer issues a corrected tax bill (or a refund, if the disputed amount was already collected), and none of that touches your monthly mortgage payment on its own. Your servicer has to see it. Three federal rules in 12 CFR 1024.17 control what happens next:

• The surplus rule. If your next analysis shows a surplus of $50 or more, the servicer must refund it within 30 days, provided you are current on the loan (Section 1024.17(f)(2)(i) and (f)(2)(ii)).
• The cushion cap. Servicers can hold a cushion of no more than one-sixth of estimated annual disbursements, roughly two months' worth (Section 1024.17(c)(5)). A lower tax bill shrinks the allowed cushion too, which is why a post-appeal refund is often bigger than the tax savings alone.
• The off-cycle option. A servicer is permitted, not required, to run an analysis outside the normal annual cycle (Section 1024.17(f)(1)(ii)). Send them the county's corrected notice and the new tax bill and ask; you have nothing to lose by asking, and the annual analysis will catch it either way.

If your fight went all the way to the Administrative Law Court and took a year or more, do not assume your servicer is tracking the docket. Nobody at the escrow department is watching for your case number. The corrected bill from the county treasurer is the only document that moves your payment, so keep a copy of the decision and the revised assessment, and send both the moment they arrive.

The One Check You Actually Control

Everything after your written objection runs on a calendar you do not set: County Board hearing dockets, Administrative Law Court scheduling, and your own servicer's escrow computation year are all fixed by someone else, and none of them move faster because your escrow account is quietly overpaying. Whether a notice arrives in your mailbox isn't something you control either; that depends on your county's reassessment cycle, market movement, and the county's own timeline. What you do control is whether you check your own comparables in the years the county has nothing to say to you. Four years out of five, in South Carolina, that quiet is the entire situation. Nothing forces you to look at whether your assessed value still lines up with recent sales in the meantime. Nothing forces the county to tell you to look, either.

If you wait for a notice, you can go most of a five-year cycle before you have any occasion to check your number at all, and by the time a notice shows up, or a sale locks in a new number under the ATI rule, the 90-day window is already ticking. The only way to walk into that window with an evidence packet already built is to have looked before the letter arrived.

Key Counties

The highest-volume appeal jurisdictions in South Carolina are Greenville, Charleston, Richland, Horry, Lexington, Spartanburg, and York. Because quinquennial reassessment runs on each county's own independent five-year schedule rather than a single statewide date, one county's next reassessment notice year can land in a completely different calendar year than its neighbor's, and a county ordinance can push even that back an additional year under S.C. Code Section 12-43-217(B). Filing procedures, informal-conference practices, and County Board of Assessment Appeals scheduling differ by county even though the statewide 90-day deadline, the 4% owner-occupied ratio, the 15% cap, and RESPA rules apply everywhere. Confirm your own county's current reassessment-cycle year and filing procedure with the county assessor before you file.

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