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tax-computation

tax-computation is a skill for Claude Code from cynco-labs/ai-accounting-skills. It costs 28 tokens per session (389 once invoked), scanned A, original, MIT.

A Malaysian tax calculation that starts with accounting profit and adjusts it under the Income Tax Act 1967 to find taxable income and tax payable. It can include non-deductible costs, allowable deductions, capital allowances and prior losses.

In plain words
What is it for?
Use it to prepare a tax computation for Form C, calculate chargeable income and compare the tax due with instalments such as CP204 or CP500.
Why use it?
It connects the accounts to the tax return while keeping draft figures clearly marked when the financial statements are not final. It also avoids making up missing amounts or rates.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Part of the accounting-engagement plugin — 45 skills shipped together

not rated 3repo 2mo ago A scan 28 tokens original MIT

Good fit Use it to prepare a tax computation for Form C, calculate chargeable income and compare the tax due with instalments such as CP204 or CP500.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cynco-labs/ai-accounting-skills/tax-computation
View source ↗ cynco-labs/ai-accounting-skills ai-accounting-skills.pages.dev
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add cynco-labs/ai-accounting-skills --skill tax-computation
Clone the repo
git clone --depth 1 https://github.com/cynco-labs/ai-accounting-skills

Made for: Claude Code.

Or install accounting-engagement, the plugin that ships this one along with the rest of its 45 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for tax-computation

README.md
[![agentmods](https://agentmods.dev/badge/skills/cynco-labs/ai-accounting-skills/tax-computation/github.svg)](https://agentmods.dev/skills/cynco-labs/ai-accounting-skills/tax-computation)
Your own site
<a href="https://agentmods.dev/skills/cynco-labs/ai-accounting-skills/tax-computation"><img src="https://agentmods.dev/badge/skills/cynco-labs/ai-accounting-skills/tax-computation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for tax-computation

Your own site · 80×15
<a href="https://agentmods.dev/skills/cynco-labs/ai-accounting-skills/tax-computation"><img src="https://agentmods.dev/badge/skills/cynco-labs/ai-accounting-skills/tax-computation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 389 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00028 $0.00389
Opus 5 $0.00014 $0.00195
Sonnet 5 $0.00006 $0.00078
Haiku 4.5 $0.00003 $0.00039

Measured 12d ago against content hash a92e151a82b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

tax-computation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

accounting-engagement/skills/tax-computation/SKILL.md · 47 lines

What it actually says

/tax-computation

Purpose

ITA 1967 computation from accounting profit.

Preconditions

  1. Read shared guardrails (shared/guardrails.md).
  2. Load firm profile from ~/.claude/plugins/config/claude-for-accounting/firm-profile.md if present.
  3. Load plugin config from ~/.claude/plugins/config/claude-for-accounting/{{plugin}}/CLAUDE.md if present.
  4. Load active client engagement README / workspace if one is open.
  5. Never fabricate numbers. Re-read source documents if figures are missing from context.

Load references/tax_malaysia.md.

Prefer locked FS numbers

If FS not locked, tag computation [DRAFT — subject to final accounts].

Steps

  1. Start from accounting profit/(loss) before tax
  2. Add-backs (non-deductible)
  3. Deductions (non-taxable income removed, allowable items)
  4. Capital allowances (IA/AA) — or call capital-allowances skill
  5. Apply losses b/f rules
  6. Chargeable income
  7. Apply correct rate schedule for entity
  8. Tax charged vs CP204/CP500 instalments → payable/(repayable)
  9. Deferred tax bridge if FS recognises deferred tax

Completion

Done when: tax schedule on disk from locked (or [DRAFT]) figures; rates from reference with [verify] where needed.

Output

Tax computation schedule + journal for tax provision if YE skill needs update. Never invent CA rates or tax rates — use reference file; if outdated, flag verify against current IRB/LHDN.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 47 lines · 28 tokens per session scan A a92e151a82b2

Subscribe to this mod's changes

tax-computation is a skill published in the GitHub repository cynco-labs/ai-accounting-skills (3 stars, last pushed 2mo ago), licensed MIT. It adds 28 tokens to every session and 389 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Claude CodeFinance and fintechLegal and complianceaccountingagent-skillsbeancountbookkeepingfava
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