Accounting, tax, and HR
Your business's accounting and tax, with your accountant in one system
Your business and your accountant work on the same live data — no more sending files back and forth. Run it yourself, or let our accounting firm handle it while you keep full visibility at all times.
PERPOS BooksSee it in action
From a bill photo to a draft document in a few clicks
Review bill PV-2026-0143
- Vendor
- Siam Building Supply Co.
- Bill date
- 22 Sep 2026
- Bill total
- 6,848.00
- Status
- To review
Subtotal 6,400.00 · VAT 448.00Grand total 6,848.00
Screens from the real product · Sample data · Scroll to see each step
Built for accounting firms to manage many clients in one place
Businesses get every part of the system on their own, while accounting firms get a workspace that shows every client at once — no switching files, no chasing bills.
Step 1 · Capture
Snap bills into a LINE group — the system reads them, a person always approves
Photograph a bill or upload a file and the system reads it and suggests the account. Scans with several bills are split into separate documents automatically, and it gets more accurate the more you use it because it remembers what people confirm.
For accounting firms
Each client sends bills into their business's LINE group, and documents go straight into that business's reading queue — no chasing clients one by one.
For businesses
Snap bills from your phone. The system never posts entries on its own — every item is reviewed and approved first.
What you can do
- A LINE group for each business
- Reads bills and suggests accounts
- Splits multi-bill scans into single documents
- Checks transfer slips
- Document vault with 39 categories, locked against deletion
Pricing
Clear pricing. Going over quota never locks you out.
Go over your quota and the system warns you without blocking work. If you stop paying, you drop to a smaller plan instead of losing access to your data.
Books · Self-serve
590THB / month + VAT
1 business · 5 users · 300 documents a month, with every part of the system
Books · With our accounting firm
3,900THB / month + VAT
Unlimited documents, businesses, and users, plus accountants who close your books and file your taxes
Contact us
Book a demo built around your real work
Tell us how your work runs. Our team will tailor the demo to it and help design a workflow that fits your organization. The demo is free.
