South Korea's ₩104 Million Simplified-Taxpayer VAT Threshold: Who Qualifies in 2026

If your Korean business rang up less than ₩104 million in sales last year, you may be filing VAT the hard way — and paying more than the law asks. South Korea runs a parallel VAT track for small individual businesses that swaps the standard 10% calculation for a simplified formula, cuts filing down to twice a year, and can exempt the smallest sellers from paying anything at all. Yet plenty of eligible owners never claim it, either because they assume the old ₩80 million cutoff still applies or because nobody told them the math. Here is how the simplified-taxpayer system works, who qualifies in 2026, and when you are actually better off staying on the standard track.

How Korea's VAT Works in One Minute​

South Korea keeps one of the world's simplest VAT rate structures: a single standard rate of 10% on most goods and services, unchanged since the system launched in 1977. Certain supplies are zero-rated (exports, international transport, qualifying services to foreign buyers — with input VAT reclaimable) or exempt (with input VAT generally not recoverable).

Two features surprise newcomers:

• There is no general registration threshold. Any business making taxable supplies must register for VAT, no matter how small. Even a side hustle with a handful of sales registers from the start.
• General taxpayers file quarterly. Returns and payments fall due on the 25th of the month after each quarter ends: April 25, July 25, October 25, and January 25.

The simplified-taxpayer regime (간이과세자) sits alongside this standard track as a concession to small operators. Same 10% headline rate in the law — very different arithmetic in practice.

What the Simplified-Taxpayer System Is​

Simplified taxation exists for one reason: to cut both the tax bill and the paperwork for genuinely small businesses. Instead of tracking output VAT minus input VAT on every transaction, a simplified taxpayer pays a deemed amount derived from sales and an industry ratio, files twice a year instead of four times, and skips much of the invoice-level bookkeeping the standard system demands.

The headline change to know: the eligibility line moved from ₩80 million to ₩104 million in annual sales in July 2024. That higher line is what governs 2026 — whether you qualify as a simplified taxpayer this year depends on whether your prior-year sales came in under ₩104 million. The same reform swept away an old quirk that had blocked some city businesses (such as beauty salons in metropolitan areas with floor space over 40 square meters) from simplified status regardless of turnover. Now the sales figure is the test.

Who Qualifies in 2026​

Three conditions decide whether the simplified track is open to you:

1. You are an individual business owner. The regime is for sole proprietors (개인사업자), not corporations. If you incorporated, you file as a general taxpayer no matter how small your revenue.
2. Your prior-year sales were under ₩104 million. New businesses start on the simplified track by default when their expected profile fits, then get reclassified as sales grow.
3. You are not in an excluded category or zone. Certain business types and designated commercial districts have historically been shut out of simplified taxation even below the sales line, to prevent abuse through underreported sales. More on this below — the exclusion map is being redrawn in 2026.

Cross the line and the National Tax Service (NTS) moves you to general-taxpayer status, with quarterly filing and full input-output VAT accounting. Fall back below it and you can return to the simplified track. Your books, therefore, double as your eligibility monitor: the rolling sales total decides which regime you wake up in next year.

How the Simplified VAT Bill Is Calculated​

Here is the formula that makes the regime worth having:

VAT payable = (sales × industry value-added ratio × 10%) − (purchases × 0.5%)

The value-added ratio (업종별 부가가치율) is a deemed margin the tax law assigns to your industry. It typically runs from 10% to 40% depending on the trade. Commonly cited ratios include:

(Confirm the current ratio for your exact business code on HomeTax or with your accountant before relying on it — ratios are set by enforcement decree and the precise mapping matters.)

The second term, a 0.5% deemed credit on purchases, stands in for the input VAT deduction general taxpayers compute invoice by invoice. You do not need to collect and match tax invoices to claim it.

A Worked Example​

Take a neighborhood retail shop with ₩90 million in annual sales and ₩60 million in purchases from suppliers:

• Deemed output VAT: ₩90,000,000 × 15% × 10% = ₩1,350,000
• Deemed purchase credit: ₩60,000,000 × 0.5% = ₩300,000
• VAT payable: ₩1,050,000 — an effective rate of under 1.2% of sales

The same shop on the general track, assuming fully documented transactions, would owe roughly 10% of its actual value added — several times more, plus the bookkeeping cost of proving it. That gap is the entire point of the regime.

The ₩48 Million Payment Exemption​

There is a second, lower line inside the simplified regime that many owners miss: simplified taxpayers with annual sales under ₩48 million are exempt from paying VAT at all. You still hold simplified status and still file, but the payment comes out to zero.

This creates three natural tiers for an individual business:

• Under ₩48 million: simplified status, no VAT payment.
• ₩48 million to ₩104 million: simplified status, VAT computed by the deemed formula.
• ₩104 million and above: general taxpayer, standard 10% input-output accounting with quarterly filing.

If your sales hover near ₩48 million, careful year-end tracking pays for itself many times over — a small push across the line converts a zero bill into a real one.

The Filing Calendar: Twice a Year, Not Four​

Simplified taxpayers file semi-annual returns covering each half of the calendar year:

When the 25th lands on a weekend or holiday, the deadline shifts to the next business day — in 2026, for example, the first-half deadline moved to July 27 because July 25 fell on a Saturday. Both filing and payment share the same date, and everything runs through the NTS HomeTax portal. The NTS reported nearly 7 million businesses in scope for the first-half 2026 filing, so file early in the window rather than joining the last-day crush on the portal.

The Big Tradeoff: Receipts, Not Tax Invoices​

Simplified status is not free. Its main cost: simplified taxpayers generally issue receipts (영수증), not tax invoices (세금계산서). That distinction matters enormously if you sell to other businesses, because your buyer cannot claim an input VAT credit on a purchase documented only by a receipt. A general-taxpayer customer that buys ₩11 million of goods from you effectively absorbs the embedded VAT as a cost instead of recovering it.

Practical consequences:

• Consumer-facing businesses (cafés, salons, neighborhood retail, food stalls) feel almost no pain — your customers are not claiming input credits anyway.
• B2B sellers (wholesalers, subcontractors, suppliers to larger firms) can lose orders to general-taxpayer competitors whose invoices let buyers recover VAT. Some corporate buyers simply refuse receipt-only suppliers.
• Mixed businesses need to weigh the customer mix. If most revenue comes from VAT-registered business buyers, the standard track may win back more in retained sales than it costs in extra VAT.

This is the single most common reason eligible businesses voluntarily stay general. Run the numbers on your actual customer base before assuming simplified is better.

Exclusion Zones: The Map Is Being Redrawn in 2026​

Even below the sales line, the NTS has long fenced certain bustling commercial districts out of simplified taxation — traditional markets and dense retail streets where underreported cash sales were considered a systemic risk. Location alone could force a tiny shop onto the general track.

That map is now changing. The NTS announced a major reorganization of these simplified-tax exclusion zones — the first in 26 years — narrowing the fenced-off areas across 544 districts, with an estimated 40,000 small business owners regaining access to simplified status. If a HomeTax notice or your accountant once told you that your address disqualified you, check again in 2026. Relief you were told was impossible may now be one status check away on the My HomeTax portal.

The ₩80 Million E-Invoice Tripwire Inside Simplified Status​

One more threshold sits inside the simplified band and catches owners off guard. Businesses with prior-year sales of ₩80 million or more must issue electronic tax invoices — a mandate that reaches simplified taxpayers in the ₩80–104 million slice, not just general taxpayers. The NTS stores these centrally, expects transmission quickly after issuance, and applies penalties for late or missed transmission from the moment you fall into scope.

If your sales are climbing through the ₩80 millions, budget for compliant invoicing software or an ASP/ERP integration before you cross the line, not after. Corrections follow a negative-invoice procedure (cancel with an offsetting negative invoice, then reissue) rather than direct edits, so getting the fields right the first time saves real administrative pain. Keep your own five-year archive even though the NTS holds copies centrally.

Should You Stay Simplified or Go General?​

Use this decision framework at each year-end:

Stay (or go) simplified when:

• Your sales are safely under ₩104 million with no near-term breakout expected.
• Your customers are mostly end consumers who do not claim input VAT.
• Your actual profit margins are thin relative to your industry's deemed ratio — the formula taxes the deemed margin, so a low-margin operator can owe less than the standard 10% on real value added would imply.
• Bookkeeping simplicity has real value to you — two filings a year, no invoice-by-invoice input matching.

Consider general-taxpayer status when:

• You sell mainly to VAT-registered businesses that need tax invoices from you.
• Your real value added is far below the deemed ratio — for example, a high-volume, low-margin wholesaler — so that 10% of actual margin beats the formula amount. (This is rarer than owners hope; do the arithmetic with real figures.)
• You are investing heavily, since general taxpayers recover input VAT on equipment and fit-out costs in full while simplified taxpayers get only the 0.5% deemed purchase credit.
• You expect to blow past ₩104 million mid-year anyway — converting deliberately beats being reclassified by surprise.

Either way, the decision rests on records: trailing-twelve-month sales, customer mix, and purchase volumes. A ledger that answers those three questions at any moment turns an annual gamble into a routine check.

Bookkeeping Habits That Keep You Qualified​

Whatever track you are on, four habits protect your position:

1. Track rolling sales monthly, not annually. The ₩48 million, ₩80 million, and ₩104 million lines are all prior-year tests — but by the time last year's total is final, your current-year status is already set. A monthly cumulative-sales figure tells you in October what January will bring.
2. Separate taxable, zero-rated, and exempt sales. The thresholds test taxable supply value; mixing exempt income into the total can misstate where you stand.
3. Reconcile HomeTax against your own books each half-year. E-invoice transmissions, card-company sales data, and your ledger should tell the same story before you file. Discrepancies found by you are corrections; discrepancies found by the NTS are assessments.
4. Document the customer mix. If you ever need to justify a voluntary switch to general status — or defend staying simplified — a simple B2B-versus-consumer revenue split from your own records is the evidence.

Keep Your Thresholds in Sight All Year​

Korea's simplified-taxpayer system is genuinely generous — effective VAT rates of 1–4% of sales, two filings a year, and a full payment exemption under ₩48 million — but every benefit keys off sales figures your books must prove. The owners who gain the most are the ones who watch the ₩48 million, ₩80 million, and ₩104 million markers as live numbers through the year, not as surprises discovered at filing time.

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