Accounting / Professional

A tax calendar and watch points for accounting firms

In short

The tax calendar on Phak AI brings filing deadlines, holidays your firm has confirmed, the withholding tax rate table, the disallowed input tax list, and VAT registration threshold checks into one place. Accountants can ask in plain Thai which clients must file what this week. Every data set comes from what your firm has approved. It suits firms where the month-end close collides with tax deadlines every month.

The old way

  • Check the calendar and holiday notices monthly
  • Recall withholding rates from experience
  • Spot sales near the VAT threshold at close time

With Phak AI

  • Ask which clients must file which forms this week
  • Rates and conditions come from an approved table
  • See clients nearing the threshold from exports
From remembering deadlines yourself to asking a calendar your firm has already approved.

Why tax filing deadlines get missed during the close

Many filings in one month

Each client files different forms, and some months a deadline falls on a holiday and moves.

Rates and conditions live in people's heads

Withholding rates and the disallowed input tax list often sit in an account manager's memory.

The VAT threshold is spotted late

Clients whose sales approach the threshold are often noticed while preparing statements, not during the month.

A miss means a penalty

A missed deadline costs the client and the firm's credibility.

How the AI tax calendar works

We set it up with your firm. Every data set must be approved by a person before it is used for answers.

Collect data your firm approves

Load the filing schedule, confirmed holidays, withholding rate table, and disallowed input tax list into the knowledge base.

Link it to the client list

Record which forms each client files, using the files your firm already keeps.

Ask any day

Accountants ask what is due this week and which deadlines move for holidays, with the source table cited.

Watch risk points from exports

Compare sales from accounting software exports with the VAT threshold your firm sets, for accountants to review.

Example questions about the tax calendar

Which filing deadlines this month fall on a holiday, and when do they move to?
Which clients must file withholding tax returns this week?
Which clients' cumulative sales are close to the VAT registration threshold?
Is this expense on our firm's disallowed input tax list?

What we measure

Measured with your firm's own data, before and after.

  • Number of missed filing deadlines
  • Number of deadline questions that reach an account manager
  • Clients found near the VAT threshold before statement preparation

Scope of the tax calendar

What Phak AI does

  • Phak AI answers questions on deadlines and rates from data your firm approves
  • Phak AI flags clients whose sales are near the VAT threshold, from export files
  • Phak AI cites the source table in every answer

What it does not do

  • It does not file tax returns for you
  • It does not set rates or interpret the law. It uses only data your firm approves
  • It does not give tax advice in place of professionals

Frequently asked questions

Does the tax calendar update holidays on its own?

No. It uses only holidays and deadlines your firm has confirmed. When an announcement changes something, your approver updates the data and the assistant answers from the latest version.

Can it replace an accountant's review?

No. The calendar helps keep things from slipping. Accountants still review, decide, and file as before.

Do we need to change accounting software?

No. VAT threshold checks use export files from each client's existing software, and you can connect internal systems through MCP when ready.

Talk to the Phak AI team

Tell us about your business. The Phak AI team will show you the systems that fit and plan the rollout with you, without replacing what you have.

1 Share your goalsWe help you rank the work where AI helps your business most.
2 See the system at workWatch it run on sample data from your business before you decide.
3 Install and go liveInstalled on your own dedicated server, connected to the systems you use.