Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
ClaudSkills / Security / security-misc

Form W7

Category: Security  ·  Sub-category: security-misc  ·  Last updated:
Use this skill when an individual who is not eligible for a U.S. Social Security Number needs an Individual Taxpayer Identification Number (ITIN) to file a U.S. tax return, claim treaty benefits, or be claimed as a dependent / spouse on someone else's return. Triggers on phrases like "ITIN application", "Form W-7", "renew ITIN", "tax ID for non-resident alien", "ITIN for spouse without SSN", "dependent ITIN", "FIRPTA ITIN", or "I need an ITIN to file Form 1040". Do NOT use for: SSN-eligible individuals (apply via Form SS-5 with the Social Security Administration, not the IRS); business EINs (Form SS-4); ITIN-holders who have received an SSN (use the SSN and tell the IRS so it updates its records; no W-7); PTIN for tax preparers (Form W-12).
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

This skill produces a complete Form W-7 ITIN application package — including the W-7 itself, the supporting tax return that triggers the ITIN need, the right combination of identification documents, and the correct submission channel (mail, Acceptance Agent, Certifying Acceptance Agent, or in-person at an IRS Taxpayer Assistance Center).

What this skill does

Form W7 is a community-contributed Claude Code skill in the security-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/form-w7/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Form W7 Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ 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/form-w7
curl -L https://claudskills.com/skills/form-w7/SKILL.md \
  -o ~/.claude/skills/form-w7/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/form-w7/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/form-w7/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\form-w7\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 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 Form W7 Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/form-w7/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Form W7 skill do?
Use this skill when an individual who is not eligible for a U.S. Social Security Number needs an Individual Taxpayer Identification Number (ITIN) to file a U.S. tax return, claim treaty benefits, or be claimed as a dependent / spouse on someone else's return. Triggers on phrases like "ITIN application", "Form W-7", "renew ITIN", "tax ID for non-resident alien", "ITIN for spouse without SSN", "dependent ITIN", "FIRPTA ITIN", or "I need an ITIN to file Form 1040". Do NOT use for: SSN-eligible individuals (apply via Form SS-5 with the Social Security Administration, not the IRS); business EINs (Form SS-4); ITIN-holders who have received an SSN (use the SSN and tell the IRS so it updates its records; no W-7); PTIN for tax preparers (Form W-12).
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 Form W7 skill?
Use Form W7 when your Claude Code task falls under the Security category — specifically in the security misc 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 Form W7" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Form W7 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. Form W7 is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

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

APA
jupid-tax. (2026). Form W7 [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/form-w7/
BibTeX
@misc{form-w7-2026,
  author    = {jupid-tax},
  title     = {Form W7 [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/form-w7/}
}

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Security scan

Grade A · scanned 2026-10-25 — 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 ›

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[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/form-w7/#security)

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More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
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