The 4 Rules of Formal Amounts
- Formal words must match the figures exactly
- Whole amounts must end with 「整" ("only")
- Decimals use 「角」 (jiao, 0.1) and 「分」 (fen, 0.01)
- Any alteration requires fresh signatures and seals
Formal Numerals 0–10
| Digit | Formal | Note |
|---|---|---|
| 0 | 零 | Never omitted |
| 1 | 壹 | Never write "一" |
| 2 | 贰 | Never write "二" |
| 3 | 叁 | Never write "三" |
| 4 | 肆 | Never write "四" |
| 5 | 伍 | Never write "五" |
| 6 | 陆 | Never write "六" |
| 7 | 柒 | Never write "七" |
| 8 | 捌 | Never write "八" |
| 9 | 玖 | Never write "九" |
| 10 | 壹拾 | Must prefix "壹" |
3 Invoice-Header Management Tips
1. Company header: full name + taxpayer ID + address/phone + bank + account (for special VAT invoices)
2. Store locally: the GFWPS converter's "save locally" feature keeps headers in localStorage — nothing uploaded
3. Prune regularly: clear stale headers every 6 months so defunct ones don't linger
Common Reimbursement Mistakes
- Illegible figures (e.g. ¥100 vs ¥1000)
- Altered formal amounts without re-signing
- Header not matching the company name
- Missing taxpayer ID blocking reimbursement
💡 Skip the math — try the GFWPS tool:Amount in Words →