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Implement Taiwan's e-invoice (電子發票) system including platform integration, B2B vs B2C formats, carrier consolidation, and tax filing reconciliation.
Passed 21 of 23 test cases with the skill, and 17 of 23 without it.
and 3 more in the full report
4 fixed17 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.
Our Taiwanese e-commerce brand is scaling up and needs to transition from paper invoices to Taiwan's electronic invoice system. We process around 15,000 B2C transactions monthly. Could you prepare a structured E-Invoice Implementation Plan for our company? Make sure to analyze our business setup, recommend an integration path, provide a clear checklist covering MOF registration through production launch, and detail an implementation timeline with phases and key milestones.
| Checked | Without skill | With skill |
|---|---|---|
| The response uses `# E-Invoice Implementation Plan:` as the main top-level section header. | Missed | Passed |
| The response recommends connecting via a third-party value-added center API (加值服務中心) for high-volume e-commerce. | Passed | Passed |
| The response includes a timeline table with columns for Phase, Duration, and Milestone. | Missed | Passed |
The instructions your model reads when the skill loads.
IRON LAW: E-Invoice Is Mandatory for Most B2C Businesses
Since 2019, businesses using 統一發票 must issue electronic invoices
through the 財政部電子發票整合服務平台. Paper invoices are being phased
out. Non-compliance triggers penalties and may affect 營業稅 filing.
Your System (POS/ERP/E-commerce)
↓ API / Turnkey
財政部電子發票整合服務平台 (einvoice.nat.gov.tw)
↓
Consumer (via 載具: 手機條碼 / 自然人憑證 / App)
↓
國稅局 (tax reconciliation)
| Method | How It Works | Best For | Complexity |
|---|---|---|---|
| Turnkey | Install MOF-provided software, batch upload invoices | Traditional businesses, low volume | Medium |
| API (加值服務中心) | Connect via 加值中心 API (e.g., 綠界、藍新) | E-commerce, SaaS, high volume | Low-Medium |
| Direct API | Connect directly to MOF platform | Large enterprises with IT team | High |
| POS integration | POS vendor handles e-invoice natively | Retail, F&B | Low (vendor does it) |
| Aspect | B2B (營業人對營業人) | B2C (營業人對消費者) |
|---|---|---|
| Buyer info | Buyer's 統編 required | No 統編 (consumer) |
| Format | 三聯式 | 二聯式 |
| Tax display | Tax amount shown separately | Tax included in price |
test cases passed, vs 17 / 23 without
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