Invoice System
A comprehensive knowledge base on the Qualified Invoice Storage System (Invoice System). Supports overview of the system, required entries, transitional measures, input tax credit rules, and registration decisions.
System Overview
The Invoice System (Qualified Invoice Storage System) is a system related to input tax credits for consumption tax that came into effect on October 1, 2023 (Reiwa 5). In principle, taxable businesses must retain "qualified invoices (Invoices)" issued by "qualified invoice issuing businesses" to claim input tax credits. To become a qualified invoice issuing business, you need to file a registration application with the tax office, and a registration number (T + 13 digits) will be assigned.
According to the Reiwa 8 Tax Reform Outline (Cabinet decision on December 26, Reiwa 7), there are major changes such as the establishment of a 30% special measure and the 5-stage transitional measure schedule.
Quick Reference
Registration Number Format
- T + 13-digit number
- Corporation: T + Corporate Number (e.g., T1234567890123)
- Individual: T + Unique Number (different from My Number)
6 Mandatory Entry Items for Qualified Invoices
- Name or trade name of the issuing business and registration number
- Transaction date
- Details of the transaction (including indication of items subject to reduced tax rates)
- Amount of consideration and applicable tax rate, categorized by tax rate
- Amount of consumption tax, etc., categorized by tax rate
- Name or trade name of the recipient
List of Current Transitional Measures (as of Reiwa 7)
| Measure | Details | Applicable Deadline |
|---|
| 20% Special Measure | Pay 20% of the sales consumption tax amount | Up to the tax period including September 30, Reiwa 8 |
| Input Tax Credit for Tax-Exempt Businesses | 80%→70%→50%→30%→0% | Full transition on October 1, Reiwa 11 |
| Small-Amount Exception | No invoice required for amounts under 10,000 yen (tax-included) | Until September 30, Reiwa 11 |
| Exemption from Small-Amount Refund Invoices | No refund invoice required for amounts under 10,000 yen (tax-included) | Permanent measure |
Fraction Handling of Consumption Tax Amount
- One-time fraction handling per invoice, by tax rate
- Truncation, rounding up, or rounding off are all allowed (businesses' choice)
- Fraction handling per line is not permitted
Reference File Reference Guide
Refer to the following reference files according to the content of the question:
| Question Category | Reference File |
|---|
| Qualified invoice entry items, types, fraction handling | references/qualified-invoice-requirements.md
|
| Transitional measure schedule, deduction rates, deadlines | references/transitional-measures-timeline.md
|
| Input tax credit requirements, exceptions, retention rules | references/input-tax-credit-rules.md
|
| Whether to register, selection of calculation method | references/decision-flowchart.md
|
| Common practical mistakes, precautions | references/common-pitfalls.md
|
| Registration application, cancellation procedures, base period | references/registration-procedures.md
|
| BtoC business decisions, pricing strategies | references/btoc-and-pricing-strategy.md
|
| Other questions, specific situations | |
Response Pattern
When answering user questions, follow the following structure:
1. Conclusion (Answer)
Present a clear answer to the question first.
2. Legal Basis
Indicate relevant laws, regulations, and circulars. Examples:
- "Pursuant to Article 57-4 of the Consumption Tax Act, there is an obligation to issue qualified invoices."
- "According to the Reiwa 8 Outline, a 30% special measure will be established starting from Reiwa 9 (for individual business owners only)."
3. Calculation Example
If applicable, provide specific numerical examples. Amounts should be in
(integer in yen units), following the fraction handling rules (as stated in CLAUDE.md).
4. Caveats
- Point out pitfalls and exceptions
- Refer to the relevant items in
references/common-pitfalls.md
5. Disclaimer
Add the following at the end of the response:
This information is based on general interpretations of tax laws and may vary depending on individual circumstances. For specific judgments, please consult a tax professional such as a tax accountant.
Cross-Reference with Other Skills
| Related Skill | Purpose | Timing of Reference |
|---|
| Consumption tax calculation, tax return preparation | When specific calculation of consumption tax amounts is required |
| Journal entry input, book management | How to record journal entries based on invoices |
| OCR reading of invoice images | When digitizing paper invoices |
| General tax advice | When tax consultations other than invoices are included |
| Closing processes | When confirming accounting processing for consumption tax |
Disclaimer
- The information in this skill reflects content up to the Reiwa 8 Tax Reform Outline (Cabinet decision on December 26, Reiwa 7)
- Content may change due to bill deliberation and passage in the Diet (especially the 30% special measure and 5-stage schedule)
- For specific individual tax judgments, consultation with a tax professional such as a tax accountant is recommended
- Since the transitional measures of the Invoice System change their application conditions every fiscal year, be sure to confirm the applicable fiscal year