Systems · On-premise AI bill extraction

Piles of bills become Excel, ready for your accounting system

Upload your bills and the system reads the date, amount, tax, and vendor, then sends back an import-ready file right away. The real system installs on your organization's own machine, so bills never touch anyone's cloud, and the cost per bill drops to zero after setup.

No card required · Trial bills are processed then deleted immediately · Results are emailed to you

Photographed bill
Siam Software Co., Ltd.
No. INV-2568-0417 · 17/04/2568
Accounting system service 1,200.00
User training fee 800.00
Subtotal before VAT 2,000.00
VAT 7% 140.00
Total 2,140.00
Import-ready Excel
DateVendorTax IDItemAmountVAT
17/04/2025Siam Software0105...Accounting system service1,200.00Excl.
17/04/2025Siam Software0105...User training fee800.00Excl.
Who it's for

High bill volume, want full control, and data must never leak

The more bills a month, the more a per-bill service costs. This system is built for teams that want their own system, want to set their own booking rules, and don't want customer bills sitting on anyone else's cloud.

฿0/bill

The more you process, the more you save

The model runs on your own machine, so there's no per-bill cost. Ten bills or ten thousand, the electricity bill stays the same.

Yours

You control every rule

The chart of accounts, the signatories, the company-specific rules stay in your hands. The system adapts to your work, not the other way around.

PDPA

Bills never leave your system

The real system runs inside your organization, so personal-data requirements are met without relying on any provider's promise.

Curated

A model that understands the work

We've curated the local model that reads Thai accounting documents, so you don't pay premium AI rates in the tens of thousands a day for work that doesn't need it.

Output imports into FlowAccount · PEAK · Express and any accounting system that accepts file import

Why you can trust the numbers

We don't let AI do the math for you

AI has one job: transcribe the numbers and text off the bill exactly as printed. Addition, tax, and the call on whether to trust a figure belong to a fixed calculator that recomputes everything a second time. If the numbers don't add up, the system sends it to a human, it doesn't guess.

01 · ReadThe model transcribes numbers, text, and labels exactly as they appear
02 · VerifyEvery layer is recalculated: line items, subtotal, VAT, total, withholding tax
03 · Apply your rulesMatches vendors and sorts expenses, goods, and assets the way you defined them
04 · DecideOnly bills that clear every check make it into the file. Anything flagged goes to a human first.
Free trial

Start by telling the system about your company

Answer a few short questions, no accounting jargon required. The system assembles a COMPANY.md context file for you. This file stays with you, attach it back next time and the system remembers your company, and you can carry it straight into the real on-premise system.

Trial console
This month's quota 30/30 bills
COMPANY.md
The page saves your context automatically · download it to use with the real system
Green · passes every check Yellow · needs your confirmation Red · numbers conflict, open the bill
Incomplete bills can still be booked

No receipt for an expense? We draft a certificate in lieu of receipt (ใบรับรองแทนใบเสร็จ) for you

Taxi fares, market purchases, coin-operated parking, expenses like these will never come with a receipt. They can't be booked for tax purposes until an authorized person in the company signs off. The system pulls these expenses out, drafts the certificate following Revenue Department guidance, fills in the signatory name you set up, and emails it to you along with the Excel file in one pass.

Certificate in lieu of receipt (ใบรับรองแทนใบเสร็จ) console This month's quota 30/30 bills

Already know which bills are incomplete? Fill in the two fields below and upload them directly, no need to wait for the system to sort them. Uses the same quota as the combined extraction.

Fill this in here or in the first console, it's the same data either way, the system keeps them in sync.

Drag incomplete bills here, or click to choose
JPG · PNG · PDF · shares the 30 bills/month quota

The system drafts the certificate, fills in the signatory name from your saved context, and emails it to you along with the Excel file.

Start free, then move to production

The context you build today carries over when you go live

Free trial

Try it with real bills and set up your company context

  • Upload up to 30 bills a month
  • Build COMPANY.md through a short interview, no accounting jargon required
  • Get an import-ready Excel file for your accounting system, emailed to you
  • Bills are deleted immediately after processing, never stored
Start now
On-premise production

Installed on your machine

The system is yours, bills never leave

  • Runs on your organization's own machine, fully PDPA-compliant, no bill limit
  • Carries over COMPANY.md and every correction accumulated during the trial
  • Gets more accurate the more you use it, because it remembers your team's corrections
  • Certificate in lieu of receipt issued automatically and emailed
Talk about installation
Frequently asked questions

Before you try it

How many bills can I try for free, and how is it counted?

30 bills a month, counted per email address and per buyer company shown on the bills. Upload and walk away, the system emails you the file when it's done.

Can it read handwritten bills?

Partially, but the system never guesses. Anything it isn't confident about always goes to a human for confirmation, a number that fails verification never slips silently into the file. The on-premise system can also be tuned to the documents you see regularly, so accuracy on your bills keeps improving with use.

How safe is my bill data?

Trial mode processes on our server and deletes everything the moment results are sent back. The real system installs on your organization's own machine, so bills never touch anyone's cloud, PDPA compliance comes from how the system is built, not from a promise.

Can I import the output file straight into my accounting system?

Yes. The figures in the file are real numbers, not text. Dates support the Buddhist Era, and the file states clearly whether each price already includes VAT. Columns are laid out to match the import screens of FlowAccount, PEAK, and Express directly.

What is a certificate in lieu of receipt (ใบรับรองแทนใบเสร็จ), and when is it used?

A document an authorized person in the company signs to certify that an expense genuinely happened for the business. It's used for expenses where you can't get a receipt from the payee, taxi fares, market purchases, coin-operated parking, following Revenue Department guidance. When the system finds an incomplete bill, it drafts one automatically, or you can upload directly to the certificate console. Same quota either way.

How is this different from pay-per-bill extraction services?

Typical services charge per bill, and your bills go up to their cloud. This system installs once on your own machine, after that there's no per-bill cost. The more bills you process, the more you save, and you own both the system and the data.

Got a pile of bills sitting in front of you right now?

Bring your first 30 bills. Setting up your company context takes about 5 minutes, upload the bills, then wait for the file in your inbox. If it fits, we can talk about moving the whole system into your organization.