E-Invoice CSV Field Checker for Malaysian SMEs
Upload your invoice export and see which rows are missing or have badly formatted e-invoice fields before you try to submit them.
Economics
- Pricing example
- $15 for 500 invoices checked (first 50 free)
- Daily math
- 1-2 packs a day x $15 = $15-30/day; about 40 packs a month averages $20/day.
- Target if you hit the daily math
- Target: $500 - $800 / month if the daily math is hit
Audience and urgency
Audience: Malaysian SMEs, bookkeepers and small accounting firms preparing invoice data from spreadsheets or older accounting software for e-invoicing.
Urgency: Malaysia is phasing in mandatory e-invoicing, and invoices need fields many small businesses never captured before, such as buyer tax identification numbers and classification codes. Finding the gaps row by row in a spreadsheet is slow, and errors surface only at submission.
MVP scope
- ✓ Upload CSV/XLSX and map columns to e-invoice fields
- ✓ Rule file built from the current published e-invoice guideline and code lists (required fields, formats, currency and tax-type codes, MSIC and classification codes), with its version date shown
- ✓ Row-by-row errors and warnings with plain-English explanations
- ✓ Export an error report and a cleaned template CSV
- ✓ Credit packs via Stripe; files processed in the browser and never stored
Omitted features
- - Do NOT submit invoices to the government system or act as an intermediary in Day 1
- - Do NOT give tax advice or claim approval by the tax authority
- - Do NOT check buyer tax numbers against government systems without official API access
Suggested stack
- Frontend
- React + Tailwind CSS + Papa Parse + SheetJS
- Backend or API
- Browser-side validation with a versioned JSON rule file; Supabase only for credits
- Payments
- Stripe Checkout (MYR)
- Hosting
- Vercel or Netlify (free tier to start)
Repository metadata
- Blueprint ID
einvoice-csv-checker-my- Category ID
b2b_micro_utility- Monetization ID
usage_pack
Day-one distribution
Channels
- Malaysian SME and bookkeeper Facebook groups
- LinkedIn posts aimed at Malaysian accountants
- Free e-invoice field checklist page in English and Malay
Reddit strategy
If posting in r/malaysia or r/MalaysianPF, share the free field checklist and 50 free checks, and say clearly it isn't tax advice.
Cold outreach or directory hook
Offer small accounting firms a free 500-invoice pack to test on one client's export.
Search keywords
e-invoice malaysia required fields, myinvois csv template, e-invoice checklist sme malaysia
One-shot master prompt
Build a browser-only "E-Invoice Field Checker" for Malaysian SMEs in React with Tailwind CSS. Core requirements: 1. Upload CSV/XLSX (Papa Parse/SheetJS); mapping screen from source columns to e-invoice fields (supplier and buyer name, TIN, registration number, SST number, address, MSIC code, invoice number, issue date/time, currency, line description, classification code, quantity, unit price, tax type, tax amount, totals). 2. Rules come from rules/einvoice-my.json (required flag, regex/format, allowed code lists, cross-field checks such as line totals adding up). Show the rule file's source and version date in the UI and make it easy to update. 3. Results table: per-row errors (blocking) and warnings, with plain-English messages in English and Malay; filter by error type. 4. Exports: error report CSV and a cleaned template CSV with the correct column order. 5. 50 free rows, then Stripe Checkout ($15 for 500). Data never leaves the browser. Show a clear note: not tax advice; check the official guideline.
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Published 2026-10-08.