Formats · Invoice preflight checker
Identify common XML, JSON and national electronic invoice signatures.
Open toolPrimary formatElectronic tax invoice
Formats and networksStructured tax data / API
Official authorityNational Tax Service
Last reviewed2026-08-02
Working tools
South Korea
Explore electronic invoicing formats, identifiers, rules, deadlines and free technical tools for South Korea.
Structured tax dataAPIQR
Implementation
Electronic tax invoice
1
Formats and networksStructured tax data / API
2
IdentifiersIdentifiers
3
What the tool checksInvoice preflight checker · Electronic tax invoice
4
Official sourcesNational Tax Service
Invoice viewer
Read supplier, buyer, dates, currency, totals and line items.
Open toolInvoice preflight checker
Check parseability, core fields, identifiers and arithmetic before submission.
Open toolArithmetic checker
Reconcile net, tax, gross, paid and payable amounts.
Open toolIdentifier checker
Check the structure of VAT, GST and national business identifiers.
Open toolQR · Invoice viewer
Read QR codes from invoice images in supported browsers.
Open toolInvoice viewer ⇄ Invoice viewer
Compare two files and highlight changed fields and totals.
Open toolPrivacy · Invoice viewer
Replace common names, addresses, tax IDs, emails and bank details locally.
Open toolInvoice viewer · Print view
Create a clean browser print view from structured invoice data.
Open toolInvoice preflight checker ×
Inspect multiple structured invoice files and export a summary.
Open toolInvoice preflight checker · ID
Find exact and likely duplicates using file hashes and invoice keys.
Open toolFormats · XML / JSON
Search field names, values and document paths.
Open toolRequirements
Electronic tax invoice · Structured tax data / API
- Invoice number
- Issue date · Due date
- Seller · Seller identifier
- Buyer · Buyer identifier
- Currency
- Net amount · Tax · Amount payable
Implementation
Current statusElectronic tax invoice
Formats and networksStructured tax data / API
Delivery modelTax-authority clearance, registration or reporting platform.
Mandate scopeNational fiscal or clearance workflow with country-specific document rules.
Country-specific review points
These checks reflect the documented workflow and technical profile for South Korea. They are reviewed separately from the shared file parser.
- Electronic tax invoice format or profile signals
- Local tax/business identifier structure
- Core invoice fields and arithmetic consistency