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Tax invoice APIPlatform and SaaS teams

From transaction data to tax invoices.

Your orders and settlements already live in your service. Bring tax invoicing there too, using the transaction data you already have for your own sales and your customers' sales.

Your sales or your customers'. Invoicing stays in your service.

Choose the issuer and certificate setup that fits your business, whether you issue for your company or on behalf of customers.

  • Invoice your own sales

    Use transaction data from your internal system instead of entering customer details and amounts again.

  • Issue for your customers

    Customers register their certificates directly on Bolta's registration page. Your service checks registration and issues under their business.

  • Manage what happens next

    Check the final result and issue amendments for contract cancellation, changes in supply value, or duplicate issuance.

From the first request to production integration.

Give the documentation to your AI tool, verify your integration in the test environment, then connect production. Bolta customers have completed production integrations in the following timeframes.

Production integration case30 minutes

Tax invoice production integration completed

Enterprise integration case1 week

Tax invoice production integration completed

NTS system operator registration number 41000240

Pricing and requirements

Before you get started.

Standard issuance

KRW 90 each

An ordinary tax invoice the supplier writes and issues

Amended issuance

KRW 90 each

Correcting an issued invoice with a reason code

API usage is separate from the service subscription and uses prepaid credit.

  • The issuing business needs a joint certificate. For customer invoicing, connect each customer's certificate registration.
  • Check the final issuance result through the lookup API or a webhook.
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Checking just one record?

Use the free tool when you want a single lookup without writing code.

Build with your AI tool

Start with the AI tool you already use.

Copy a prompt with official documentation, prerequisites, and test goals into the AI tool you use for your project.

Tax invoice API: Integration prompt

Official docs, product scope, and test steps

Read the prompt
Integrate this Bolta API into the current project.

From transaction data to tax invoices.

Read the official documentation first and propose an implementation that fits the project's language and structure.

https://docs.bolta.io/llms.txt

https://docs.bolta.io/docs/api-introduction/quickstart

https://docs.bolta.io/docs/api-introduction/usecase-b2b

https://docs.bolta.io/docs/api-introduction/usecase-delegated

https://docs.bolta.io/docs/api-introduction/certificate-registration

https://docs.bolta.io/docs/api-introduction/amendment-guide

https://docs.bolta.io/docs/api-introduction/webhook-events

Prerequisites and scope:

- The issuing business needs a joint certificate. For customer invoicing, connect each customer's certificate registration.

- Check the final issuance result through the lookup API or a webhook.

Standard issuance: KRW 90 each
Amended issuance: KRW 90 each

API usage is separate from the service subscription and uses prepaid credit.

Read the API key from a server environment variable. Do not ask for secrets in chat. Start with the documented test key and test inputs.

Test goals: Verify test request acceptance separately from the final result. Cover missing certificates, failures, and amendments.

Do not invent undocumented features or responses. Identify open questions and summarize test results and production-readiness steps.

Questions before you integrate

Do customers need to register certificates?

Yes. Direct customers to the certificate registration page. Check registration before requesting invoices for that business.

How do we check the issuance result?

After submitting a request, check the final result through the lookup API or a webhook.

Connect it to your service.