ClaudSkills / General / legal-compliance

Shipping Aviation Tonnage Tax

Q: What is a Claude Code skill and how does the Shipping Aviation Tonnage Tax skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Shipping Aviation Tonnage Tax is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: legal-compliance · Last updated: 2026-07-26

> Use this skill whenever a shipping company, vessel operator, ship owner, ship manager, or aviation lessor / airline asks about sector-specific tax regimes. Trigger on phrases like \"tonnage tax\", \"Greek tonnage tax\", \"Cyprus tonnage tax\", \"Malta tonnage tax\", \"UK tonnage tax\", \"Norwegian shipping regime\", \"Dutch tonnage tax\", \"Singapore MSI\", \"Hong Kong tonnage tax\", \"qualifying shipping income\", \"qualifying ancillary income\", \"strategic / commercial management test\", \"EU State Aid Guidelines on State Aid to Maritime Transport\", \"flag state requirement\", \"EU/EEA flag minimum\", \"aviation lessor tax\", \"Section 110 SPV Ireland\", \"Cape Town Convention\", \"Aircraft Lease Securitisation\", or any question on shipping or aviation tax/accounting. Maps tonnage tax regimes in 18+ jurisdictions plus aviation lessor regimes (Ireland Section 110, Singapore Aircraft Leasing Scheme). Does NOT cover: vessel registration, ship financing structures, IMO regulatory compliance, or aviation safety regulation.

Security AStatic scan found no risk patternsHow grading works ›

What this skill does

Shipping Aviation Tonnage Tax is a community-contributed Claude Code skill in the legal-compliance sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/shipping-aviation-tonnage-tax/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Shipping Aviation Tonnage Tax Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/shipping-aviation-tonnage-tax
curl -L https://claudskills.com/skills/shipping-aviation-tonnage-tax/SKILL.md \
  -o ~/.claude/skills/shipping-aviation-tonnage-tax/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/shipping-aviation-tonnage-tax/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/shipping-aviation-tonnage-tax/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\shipping-aviation-tonnage-tax\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Shipping Aviation Tonnage Tax Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/shipping-aviation-tonnage-tax/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Shipping Aviation Tonnage Tax skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Shipping Aviation Tonnage Tax skill?

Use Shipping Aviation Tonnage Tax when your Claude Code task falls under the General category — specifically in the legal compliance area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Shipping Aviation Tonnage Tax" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Shipping Aviation Tonnage Tax skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Shipping Aviation Tonnage Tax is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/openaccountants/openaccountants/blob/HEAD/agent-skills/shipping-aviation-tonnage-tax/SKILL.md
License: AGPL-3.0
Author: openaccountants
Website: https://www.openaccountants.com/

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

openaccountants. (2026). Shipping Aviation Tonnage Tax [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/shipping-aviation-tonnage-tax/

BibTeX

@misc{shipping-aviation-tonnage-tax-2026,
  author    = {openaccountants},
  title     = {Shipping Aviation Tonnage Tax [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/shipping-aviation-tonnage-tax/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/shipping-aviation-tonnage-tax.svg)](https://claudskills.com/skills/shipping-aviation-tonnage-tax/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/shipping-aviation-tonnage-tax/#security)

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Browse all General skills → Top 100 skills

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