For online shops
Customer needs a tax invoice? One minute.
Shopee, Lazada, TikTok Shop, Line — when a B2B customer asks for a tax invoice, issue it on the spot.
What gets in the way
Business customers delay your response
They ask for a tax invoice via chat. You open Word, retype, spend 10–15 minutes each.
VAT math goes wrong
Inclusive vs exclusive, customer asks which — you miscalculate often.
Tax invoice numbering chaos
20–30 invoices a month, hand-numbered in notepad. One slip = tax filing problem.
How Flowly helps
Full tax invoices per Thai Revenue Dept spec
Tax ID, HQ/branch code, line detail, VAT 7% — every required field included.
Auto-incrementing invoice numbers
Sequential, never duplicated. Clean year-end tax filing.
VAT auto-calculation
Inclusive or exclusive, split into subtotal + VAT + total correctly.
Online + offline in one account
Shopee, Line, in-person — issue invoices from any channel, totals in one dashboard.
Good fit for
- Shopee / Lazada sellers
- TikTok Shop
- Line / Facebook sellers
- Dropship / pre-order
- Brick & mortar + online
Frequently asked questions
Do you support e-Tax Invoice (by Email)?
Flowly generates a compliant PDF. Download and forward it to csemail@rd.go.th to file via the Revenue Department's e-Tax Invoice by Email program.
Non-VAT registered shops — what about tax invoices?
Non-VAT shops issue receipts instead of tax invoices. Flowly supports both — set it once in business settings.
Ready to try it?
Free plan: 15 invoices/month, no watermark, no credit card.
Start free