Bolta, a Seoul financial data API provider registered with South Korea’s National Tax Service as an e-invoicing system provider, announced on 28 October 2026 that it is offering Bolta e-invoicing and Know Your Business APIs to global companies, with integrations into SAP and Oracle and Flexport named as a customer, according to the announcement. Fintechbits checked Bolta’s Korean-language website, which says it had processed 2,258,885 tax invoices worth 10.19 trillion won as of October 2026 and charges 90 won per tax invoice issued through its API.

Fintechbits analysis

Why Bolta e-invoicing matters to foreign firms

South Korea requires businesses to issue electronic tax invoices for taxable transactions and send them to the National Tax Service. A foreign company running SAP or Oracle centrally has to bridge that mandate locally, which usually means a Korean vendor and a lot of manual work. Bolta e-invoicing plugs into the ERP, issues invoices, tracks their status and lets groups with several Korean entities separate permissions.

The verification side is the second product. Bolta’s APIs check a counterparty’s registration status and tax classification, which matters for beneficial ownership and KYB rules. Its Korean site prices a business registration status check at 10 won per query and lists 263,709 registered counterparties.

The “Plaid of Korea” label in the release oversells it. Plaid connects consumer bank accounts; Bolta is closer to a tax compliance and business data layer, like the e-invoicing providers spreading through Europe as late-payment and invoicing rules tighten. That is still a useful business, and a defensible one: certification with the tax authority is a barrier that a foreign software vendor cannot easily clear on its own, and every multinational with a Korean subsidiary faces the same mandate. The release names only one customer, Flexport, which it says receives English-language support and technical guidance during deployment. Pricing at 90 won, well under 10 US cents, per invoice suggests Bolta e-invoicing competes on volume.