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A Cash Receipt Was Self-Issued — Now What?

How to register a self-issued cash receipt (010-000-1234) on Hometax, with steps for both individual and business taxpayers and key merchant considerations.

Hecto Financial Engineering
2026-03-13
6 min read
#Cash Receipt#Self-Issue#Income Deduction#Business Expense
A Cash Receipt Was Self-Issued — Now What? 썸네일 이미지

After a Self-Issue

A cash receipt issued to the self-issue number (010-000-1234) is stored in the National Tax Service (NTS) system in a temporary, unattributed state. For the customer who actually made the payment to claim the associated tax benefit, a follow-up step — registering their identity — is required.

Why Is Follow-Up Required?

A self-issue is an anonymous receipt — it's issued without any customer identity information. The NTS Hometax system requires an explicit step to link [receipt data + customer identity] before the receipt can count toward year-end income deduction or business expense documentation.


Registration Steps by Taxpayer Type

The menu path and process differ depending on who the customer is. Here's a quick reference:

TypeTaxpayerIdentifierHometax Path
Income DeductionIndividual (wage earner)Mobile number or card numberInquiry/Issue > Cash Receipt > Register Self-Issued Receipt (Consumer)
Business ExpenseIndividual or corporate businessBusiness registration numberInquiry/Issue > Cash Receipt > Register Self-Issued Receipt (Business)

3 Things Customers Need to Register

The merchant must provide the following information so the customer can complete registration:

FieldDescription
Approval NumberThe 9-digit number returned in the issuance response
Transaction DateThe date the receipt was issued
AmountThe final payment amount including VAT and service charge
NOTE

Timing Note

Self-issued receipts must be issued within 5 days of the transaction date to avoid a tax penalty. Customers can look up and register the receipt on Hometax starting the day after issuance — NTS data sync runs on a daily cycle.

For Business Customers: A Better Path Than Hometax Registration

Hometax does have a "Register Self-Issued Receipt (Business)" menu, but for corporate accounting teams, the cleaner approach is to contact the merchant, cancel the original transaction, and request a reissue using the business registration number.

Why this is recommended:

  • Retroactive registration carries a risk of missing the input VAT credit in your accounting system.
  • Reissued receipts sync automatically with ERP systems, whereas Hometax-registered self-issued receipts may not.

How to request it: Call the merchant's customer support with the approval number, transaction date, and amount, and ask for a "reissue to business registration number."


Common Questions

  • Cancel + reissue vs. direct Hometax registration: If a customer later asks for a receipt under their own number and a self-issued receipt already exists, directing them to register it directly on Hometax is administratively cleaner. They receive the same tax benefit, and you avoid the risk of double issuance or omission that can come with cancel + reissue.
  • Digit count check: The self-issue number must be exactly 010-000-1234 (10 digits). Only the correct format allows the customer to match and register the receipt on Hometax.

If the self-issue workflow is still unclear, the cash receipt documentation covers the full end-to-end flow.

Cash Receipt Docs →

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