Why Every Business in Korea Needs an e-Tax Invoice API Integration
In South Korea, issuing an e-tax invoice is not an optional administrative task—it is a mandatory legal requirement for virtually every corporate entity. Because the Korean tax system is 100% digitized, every B2B transaction must be reported to the National Tax Service (NTS) in a specific electronic format.
As your business scales, managing this requirement manually through government portals becomes a significant risk. For modern enterprises, integrating an e-tax invoice API directly into your internal admin dashboard is the only way to ensure 100% compliance while maintaining operational speed.
An NTS-Authorized Foundation for Your Business
When dealing with government reporting, the reliability of your partner is everything. Bolta is an officially authorized e-tax invoice service provider certified by the NTS.
This certification means our API meets the highest security and technical standards required by the Korean government. By using an authorized provider, you eliminate the risk of transmission failures or data security breaches, ensuring that your tax-invoice issuance is always legally valid.
Built for the Global Workflow: Slack & English Support
Most local providers in Korea operate with a traditional mindset—Korean-only interfaces and slow, phone-based support. Bolta is built for the global standard, aligning perfectly with the way modern international teams operate.
Direct English Communication We remove the language barrier. Bolta provides full technical documentation and 100% English-speaking support. Your global engineering and finance teams can communicate directly with us without needing a translator.
Slack-Native Technical Support We meet you where you work. Bolta provides real-time technical support via Slack. We can join your shared channel to provide immediate, developer-to-developer assistance. Whether it’s troubleshooting an API call or explaining NTS logic, our team is just a Slack message away, ensuring your integration is seamless and fast.
The Strategic Power of API Integration
Moving away from manual uploads to a programmatic approach transforms a mandatory hurdle into a streamlined data flow within your own system.
Single Source of Truth By integrating Bolta’s e-tax invoice API, your internal admin becomes the single source of truth. Data is pulled directly from your transaction records, eliminating human errors and mismatched reporting.
Instant Scalability Manual invoicing might work for a few dozen clients, but it breaks at scale. An API handles thousands of tax-invoice requests automatically, ensuring your infrastructure keeps pace with your growth without increasing your headcount.
How Bolta Simplifies the Process
As your authorized middleware, Bolta handles the technical complexity of NTS communication in the background:
Request: Your admin sends a simple JSON request with transaction details.
Validation: Bolta automatically validates the recipient’s business status using official NTS data.
Authorized Issuance: The e-tax invoice is digitally signed and officially transmitted to the NTS.
Real-Time Sync: Receive instant updates via Slack webhooks the moment an invoice status changes.
Conclusion: Compliance Without Friction
In Korea, the tax-invoice is an unavoidable part of doing business. However, it doesn't have to be a burden. By choosing Bolta—an NTS-authorized provider that speaks your language and lives in your Slack—you turn a complex local requirement into a simple, automated background process.