KoratPOS bills today always force tax to zero
The settings on this page only affect accounting documents (quotations, invoices, receipts) — the counter/POS till does not yet read this tax setting and apply it. If a shop needs a real tax invoice, issue it through the Sales documents page, not a POS receipt.
Three tax modes
| Mode | Meaning |
|---|---|
| Country's standard rate (default) | Uses the standard rate of the country the shop is registered in — you don't have to enter a number yourself |
| No tax | This shop's documents will never carry a tax amount |
| Custom rate | Set your own % rate, from 0 to 99.9999% — you must first enter the shop's tax ID on the "Issuer details" page before this mode can be selected. If it can't be selected yet, the system states the real reason plainly, not just a greyed-out button |
Is the price already tax-inclusive?
This switch tells the system whether the price figures set in the shop are "already tax-inclusive" or "not yet inclusive":
- On (already inclusive) — the system "strips" tax out of the set price to compute the tax base; the price the customer sees doesn't change
- Off (not yet inclusive) — the system adds tax on top of the set price; the amount the customer pays will be higher than the price set
You can set a custom label for the tax (e.g. "VAT 7%") — leave it blank and the system uses a standard translation automatically.
Calculation preview
Every time you save the tax setting, the page shows a preview calculated on a hypothetical 1,000 baht, showing the tax base, tax amount, and real total based on the value just saved — this preview always reads from the most recently saved value. Change something in the form without pressing save yet, and the preview won't move with it, to prevent it being mistaken for a real figure that hasn't been saved.
Product defaults
Set the default unit for new products (e.g. piece / kg / box) — existing products aren't changed by this; it only affects newly created products from then on. This same page also shows the cap on the number of product photos (always enforced server-side, not just a front-end guard).
Product option sets
Create option templates, e.g. size (small/medium/large), sweetness, or colour — set whether the customer must choose one, the maximum number of options selectable, and the price add/subtract of each sub-option. Turn on "apply to new products automatically" so every newly created product gets this set right away — products that already existed before you turned this switch on are untouched; you must add it to each one yourself.
Who can edit
Editing tax settings needs the "Manage accounting documents" (accounting.manage) permission — product defaults and option sets need "Manage products" (catalog.manage) instead, a separate permission. A staff member holding only one of the two sees only the card they can edit, not a blank whole page.
What can't be done today
- There's no automatic transmission of electronic tax invoices (e-Tax Invoice) to the Revenue Department yet
- An issuer who is a natural person still can't enter a tax ID (national ID number) — see details on the Sales documents page
- The payroll withholding tax return (P.N.D.1, Thai monthly withholding tax return) is on the Payroll page, not this one — it's a different filing from VAT