Korea company tax filing with no revenue remains necessary for an ordinary Korean corporation: annual corporate income tax and corporate local income tax returns are required even when there is no taxable income or the company makes a loss. VAT obligations depend on its registration and filing position, while withholding depends on relevant payments. No sales, no profit and no tax payable are three different situations.
For foreign founders, this distinction matters before the first customer invoice. A pre-revenue company in Korea may already be paying rent, buying equipment or receiving shareholder funding. Those transactions need accounting attention. The five errors below explain where a Korean company with no sales can go wrong—and what its owner should organise before the next filing deadline.
1. Does having no revenue remove the annual filing obligation?
The first error is treating a quiet year as permission to skip the Korean corporate tax return. Article 60 of the Corporate Tax Act expressly extends the filing requirement to domestic corporations with no income or a loss. Supporting financial statements and tax adjustments remain relevant; a zero sales figure does not replace them.
Corporate local income tax is a separate filing. Article 103-23 of the Local Tax Act likewise covers companies with no income or a loss. For a company with a December year-end, the ordinary annual timetable is:
| Return | Ordinary deadline | Does no income remove filing? |
|---|---|---|
| Corporate income tax | 31 March of the following year | No |
| Corporate local income tax | 30 April of the following year | No |
Special filing regimes, extensions and non-business-day rules can alter deadlines. Confirm the company’s actual timetable instead of assuming every entity follows the standard dates.
2. Is a VAT return with no sales automatically a nil return?
No. A VAT return with no sales can still contain reportable purchases and deductible input VAT. Calling it a “nil return” before reviewing purchase records can leave relevant transactions unreported.
The National Tax Service’s July 2026 guidance provides simplified reporting channels for businesses without activity. However, a company with rent, equipment purchases or supplier invoices should review those records before concluding that it has nothing to report.
Can there be no preliminary VAT filing or payment?
Yes. Small corporations with total supplies below KRW 150 million in the preceding six-month taxable period generally fall under the interim payment-notice system and do not have a mandatory preliminary VAT filing obligation. If the calculated interim notice amount is below KRW 500,000, no payment notice is issued, and no interim payment is required under that system.
The KRW 500,000 threshold applies to the calculated interim notice amount, not simply to VAT calculated from the current quarter’s transactions. Relevant transactions must still be included in the subsequent final VAT return, and supporting records must be retained. This treatment is not a general exemption for companies with no revenue.
3. Can a Korean company with no sales recover input VAT?
Potentially, yes. Article 38 of the VAT Act covers qualifying purchases used, or intended to be used, for the business. Article 39 sets out exclusions. Recoverability therefore depends on the purchase, its business purpose and supporting evidence—not simply whether sales have started.
A bank transfer alone does not establish VAT deductibility. Check the supplier’s tax invoice or other qualifying evidence, the named purchaser, the supply date and the connection to taxable operations. Personal expenditure and purchases connected with VAT-exempt activities require particular care.
In an anonymised Behalf Korea client matter from the first half of 2026, a Korean branch recorded no sales but substantial purchases, with a VAT refund reported for the period. This branch example illustrates the VAT distinction: zero sales did not mean zero reportable activity. It does not establish that every pre-revenue business qualifies for a refund.
4. Can bookkeeping wait until the first sale?
Waiting is the fourth error. Bookkeeping for a Korean company starts with its financial transactions, including funding and expenditure before trading begins.
Keep shareholder funding separate from customer income. Document whether money represents paid-in capital, a loan or another arrangement, and ensure the accounting matches the underlying documents. Cross-border funding may also need separate foreign-exchange review.
Likewise, cash leaving the account is not automatically an immediate expense. A refundable office deposit, equipment purchase and monthly rent payment have different accounting implications.
| Transaction before the first sale | What to establish |
|---|---|
| Shareholder transfers money | Funding purpose and supporting agreement |
| Founder pays a supplier personally | Company purpose, invoice and reimbursement record |
| Company pays an office deposit | Refundability and lease terms |
| Company buys equipment | Asset classification and applicable accounting treatment |
This transaction review makes Korea company tax filing with no revenue more accurate and prevents year-end reconstruction from incomplete bank descriptions.
5. Does having no employees eliminate withholding obligations?
Not necessarily. Withholding is driven by the type of income paid and the recipient’s status. Salary is only one category: certain payments to individual service providers, interest payments and payments of Korean-source income to overseas recipients can also require review.
A Korean company with no sales should therefore check outgoing payments before concluding that no withholding work is needed. Equally, do not assume every inactive company must submit identical monthly nil reports. Confirm actual payments, any applicable deemed-payment rules and the company’s reporting circumstances with its tax adviser.
What should you send your accountant before filing?
Prepare a compact monthly package: complete bank and card statements, purchase invoices, receipts, contracts, funding documents and details of costs paid by founders or overseas affiliates. Include unpaid invoices and explain unfamiliar transactions.
Ask the adviser to distinguish bookkeeping, VAT returns, national corporate tax, corporate local income tax and payment-related reporting in the service scope. A pre-revenue company in Korea may have few transactions, but transaction count alone does not determine the work required.
What do foreign founders ask most often?
Must a loss-making Korean corporation file a tax return?
Yes. Ordinary domestic corporations must file annual national and local corporate income tax returns even with no income or a loss.
Can a company claim a VAT refund before its first sale?
Potentially. Qualifying input VAT may be recoverable, subject to business use, documentation and statutory exclusions. A refund is not automatic.
Should founder-paid expenses be sent to the accountant?
Yes. Provide the invoice, payment evidence, business purpose and reimbursement details so the adviser can assess the correct treatment.
How should you manage a pre-revenue year?
Korea company tax filing with no revenue should begin with a review of the company’s actual transactions and filing status. Separate sales from funding, purchases from deductible expenses, and tax payable from the obligation to file. These distinctions make the reporting process easier to manage as the business develops.
If your Korean company has not started generating revenue, contact Behalf Korea to discuss its bookkeeping and tax filing needs. Share your registration details, financial year-end and recent transactions so we can help identify the appropriate support for your company’s current stage.
