Every module posts to FI.

Materials, sales, production, payroll — whatever happens in SAP, the financial truth lands in FI (Financial Accounting): the external, statutory, tax-facing ledger. CO is the internal mirror. You are joining the Tax & Special Products area of FI.

Click (or focus + press Enter on) the FI card to see where you sit.

The ledger, then the two taxes you configure.

FI breaks into sub-ledgers that all roll up into the General Ledger. As a Tax consultant you live mostly in FI-GL plus the tax engine that sits on top of postings.

The two taxes an FI consultant configures

Tap a card (or focus + Space/Enter) to flip it.

Before the postings: the structure they hang on.

Every number in FI is the child of an organisational unit and a master record. Get those wrong and no amount of correct configuration saves you — which is why this is the first thing to establish on an unfamiliar system, and the first thing to ask about in a defect.

Organisational units

Master data

Structure first, configuration second, posting third. That is also the order to debug in — master data exists → configuration is right for this company code → what was actually posted. Working it in any other order is the most reliable way to waste a day. See the reading method on the document simulator.

What you configure, when you operate, how you frame it.

Three views of the role: the things you set up, the project phases you support, and the honest bridge from your XeerSoft delivery to SAP language.

Build a Thai VAT code the way SAP wants it.

Understanding tax is one thing; making SAP post it correctly is the job. This is the chain every FI tax consultant walks — define the code, point it at a GL account, post with it, then file it. Step through it.

Codes, keys and transactions here are the real SAP FI mechanism — shown as a methodology walkthrough, not a claim of a configured production system.

Month-end close, the FI consultant's core cycle.

Tax config is where you start; the close is where an FI consultant lives every period. From sub-ledger close to signed financial statements — press Run close ▸ to walk the sequence, or tick items yourself.

A representative FI close sequence for S/4HANA; the exact steps and cadence vary by client. Tax filing (PP30 / PND) is the tax consultant's line in it.

Which return does this posting end up on?

Configuration is only half the job. The other half is knowing which form the amount lands on — because the same service, at the same rate, goes to three different returns depending on who was paid. That single fact decides more of a Thai tax design than the rate ever does.

Withholding: the payee decides the form

VAT: two returns, one of which surprises people

Two mechanical rules sit underneath all of this and are worth committing to memory:

• The withholding base excludes VAT. On a 100,000 invoice with 7% VAT, 3% withholding is 3,000 — not 3,210. Calculating it on the gross overstates every certificate you issue.
• Foreign-currency amounts are converted to baht at the Bank of Thailand rate of the previous business day (T‑1) for Thai tax reporting. That is a different rate from the one the document posted with, which is why a tax report and a G/L balance can disagree by a few baht and both be right.

Gross-up: when the company absorbs the tax

Sometimes a contract promises the supplier a net amount, so the company bears the withholding itself. The arithmetic is not what most people guess — you are paying tax on the tax:

The offsetting account for the tax the company bears is configured in OBWW alongside the withholding payable account. Run a payment with gross-up on the document simulator → and watch the withheld amount move from 3,000 to 3,092.78 while the supplier still receives the full invoice.

Thai tax points here are summarised for study. Rates, deadlines and decrees change — verify against the current Revenue Department rules before relying on any of them.

Upstream oil & gas is taxed under its own Act.

An upstream operator — Exploration & Production — is not taxed like a normal company; it carries a stack of petroleum-specific levies instead of ordinary corporate income tax. Pick a stage of the value chain to see who sits there and which taxes apply.

The petroleum tax waterfall

Start at ฿100 of petroleum profit. Press Drain ▸ to peel off each layer the State takes.

Combined government take ≈ 67% of petroleum profit (Wood Mackenzie shallow-water, medium-cost example) vs a global average ≈ 58%. The waterfall above is illustrative — actual take varies by field and contract.

Eight cards. Answer before you flip.

Tap the card (or focus + Space/Enter) to reveal the answer. Use ◂ ▸ or the arrow keys to move through the deck.