Bolta | Simple e-Tax Invoice Service

E-tax invoicing is mandatory in Korea. Learn why an NTS-authorized API with English Slack support is essential for your business compliance and efficiency.

Avoid 2% sur-tax penalties. Learn the 4 mandatory fields (필요적 기재사항) required for a legally valid South Korean e-tax invoice and how they differ from optional data.

Confused by Korea's Joint Certificate? Learn what this digital seal is and identify exactly which certificate types allow you to issue a compliant e-tax invoice.

Check the exact 2026 e-tax invoice deadlines in Korea, including holiday extensions. Avoid penalties with Bolta’s automated scheduling and reporting system.

Optimize your billing workflow in Korea. Learn the critical differences between a regular invoice and a mandatory e-tax invoice, and why the 'write date' is key.

You cannot delete a transmitted e-tax invoice in South Korea. Learn the legal framework for amended invoices and how Bolta’s system prevents tax penalties while providing full English support.

Discover how South Korea’s mandatory e-Tax Invoice system works. Learn about mandatory fields, NTS approval numbers, and penalty risks to ensure tax compliance for your business in Korea.

Vetting a vendor for Korea? Discover why global procurement teams trust Bolta’s NTS-authorized, US VC-backed e-tax invoice API for seamless, compliant B2B operations.

Stop struggling with complex Hometax menus. Master Korea’s e-tax invoice compliance, avoid heavy penalties, and simplify your issuance workflow with Bolta.

Bolta simplifies e-tax invoice issuance for businesses and connects invoice data with bank records, helping users manage receivables and payables at a glance.

Bolta secures a Pre-Series A round led by Strong Ventures. The company enhances its e-tax invoice platform.