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claude-codefinance

Claude-skill-registry commerce-tax

Calculate taxes and manage tax rates. Use when running `stateset-tax`, calculating cart tax, or validating tax settings.

install
source · Clone the upstream repo
git clone https://github.com/majiayu000/claude-skill-registry
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/commerce-tax" ~/.claude/skills/majiayu000-claude-skill-registry-commerce-tax && rm -rf "$T"
manifest: skills/data/commerce-tax/SKILL.md
tags
#tax#finance#calculation#jurisdiction#rates#cart
source content

Commerce Tax

Calculate taxes and manage tax jurisdiction settings.

How It Works

  1. Identify jurisdiction from shipping address.
  2. Calculate tax for items or carts.
  3. Apply exemptions when valid.
  4. Report tax breakdown and totals.

Usage

  • CLI: 
    stateset-tax ...
    or 
    stateset "calculate tax for cart ..."
  • MCP tools: 
    calculate_tax
    , 
    calculate_cart_tax
    , 
    get_tax_rate
    , 
    list_tax_rates
    , 
    create_tax_exemption
    .

Output

{"tax_total":7.25,"jurisdiction":"US-CA"}

Present Results to User

  • Tax rates used and jurisdiction.
  • Exemptions applied, if any.
  • Final tax totals and rounding.

Troubleshooting

  • Missing address fields: collect postal code and region.
  • Invalid exemption: verify certificate and expiry.

References

  • references/tax-commands.md
  • /home/dom/stateset-icommerce/cli/.claude/agents/tax.md