Calculate Indonesian monthly income tax (PPh Pasal 21) based on the TER (Tarif Efektif Rata-Rata) per PP 58/2023 and PMK 168/2023, supporting December Annual Reconciliation.
Install
npx skills add adamriofc/indonesia-business-agent-skills --skill pph21-calculator-indonesia-business-agent-skillnpx skills add adamriofc/indonesia-business-agent-skills --skill pph21-calculator-indonesia-business-agent-skill -a claude-code -gnpx skills add adamriofc/indonesia-business-agent-skills --skill pph21-calculator-indonesia-business-agent-skill -a codex -ggemini skills install https://github.com/adamriofc/indonesia-business-agent-skills.git --path tax-id/skills/pph21-calculatorgh skill install adamriofc/indonesia-business-agent-skills pph21-calculator-indonesia-business-agent-skillgit clone --depth 1 https://github.com/adamriofc/indonesia-business-agent-skills /tmp/adamriofc__indonesia-business-agent-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/adamriofc__indonesia-business-agent-skills/tax-id/skills/pph21-calculator ~/.claude/skills/pph21-calculator-indonesia-business-agent-skill # Claude Code
cp -R /tmp/adamriofc__indonesia-business-agent-skills/tax-id/skills/pph21-calculator ~/.agents/skills/pph21-calculator-indonesia-business-agent-skill # Codex, Cursor, Gemini CLI, Copilot, OpenCode