Post-Merger Tax Integration: A Practical Agent Skill

Where this fits

After a company closes an acquisition, the tax team faces a pile of post-closing tasks: deciding whether the target's tax losses can be used, restructuring shareholding layers, and validating transfer-pricing positions. A developer building an M&A diligence agent can use this skill to turn those tasks into an automated tax-integration checklist grounded in Chinese EIT law and OECD guidance.

Why agents benefit

• Parse tax due diligence reports and prior-year filings to extract net operating losses and ownership history, then test them against the 财税〔2009〕59号 special tax treatment conditions (≥85% equity consideration, reasonable business purpose, 12-month activity continuity).
• Calculate the maximum loss carryforward under special tax treatment using net fair value of the target's assets multiplied by the prevailing long-term treasury bond rate, rather than leaving the calculation to a manual spreadsheet.
• Evaluate indirect foreign tax credit eligibility under Article 24 of China's EIT Law by mapping ownership percentages across the group structure.
• Apply OECD Transfer Pricing Guidelines Chapters I-III and Article 9 to recommend defensible transfer-pricing policies after integration.
• Generate a decision memo with risks, open points, and next steps in a consistent format agents can present to stakeholders.

Practical scenarios

Loss carryforward eligibility review

An agent receives the target's tax returns and restructuring agreement. It checks whether the transaction meets special tax treatment, computes the allowed loss amount, and flags whether the combined entity can use NOLs in the current year.

Cross-border indirect tax credit mapping

For a Chinese parent acquiring a foreign group, the agent maps the shareholding chain from the foreign subsidiary to the Chinese parent, confirms the 20% direct/indirect ownership threshold, and calculates creditable foreign tax. It also identifies missing documentation for the credit claim.

Post-merger transfer pricing alignment

After operations are consolidated, the agent reviews intercompany arrangements and compares them with OECD Chapter I-III principles. It recommends changes to royalty, service, and financing transaction pricing before the first consolidated filing.

Add it to your agent workflow

Install the skill with:

npx skills add guoliang1114-boop/AriaAI --skill post-merger-tax-integration

Once installed, an agent can be prompted with:

Use the post-merger-tax-integration skill to review the attached acquisition agreement and target tax filings. Identify whether the merger qualifies for special tax treatment under 59号文, calculate any available loss carryforward, and list the group restructuring decisions that affect the tax result.

This gives the agent a structured workflow: collect documents, apply the legal tests, calculate limits, and output an integration plan.

Compare before adopting

Before adopting, compare against alternative approaches: a custom prompt with raw tax law text, a general M&A skill, or an internal spreadsheet workflow. Check whether the skill's legal references are current for the Chinese tax year you are working in, especially 59号文 and OECD updates. Look at the GitHub repository's issue tracker and commit freshness to see if the author handles regulatory changes. Also test whether the skill's output format matches your downstream reporting template; if your agent needs a different final deliverable, this skill may still save time on the analysis layer.

Why it is worth tracking

With 37 stars and a stable v1.0.0 release, the skill is early but focused: it encodes domain-specific tax rules rather than generic automation logic. For developer teams building M&A tax agents, tracking this repository is low-cost — it signals whether the author is iterating on regulatory updates and whether the community is validating the output. Re-evaluate when your agent needs to handle newly announced tax rules, or when the skill's GitHub activity suggests a v2 with broader OECD integrations. You can check the latest details on the OpenAgentSkill page: https://www.openagentskill.com/skills/guoliang1114-boop-post-merger-tax-integration