financial-calculations

name	financial-calculations
description	Python scripts for precise financial simulations (Mortgages, Compound Interest, Taxes)

Financial Calculations Skill

Use these scripts to perform accurate calculations instead of relying on LLM mental math.

Available Scripts

1. Mortgage Calculator (mortgage_calculator.py)

Calculates monthly payments based on loan amount, annual rate (Euribor + Spread), and years.

# Usage Example
python /Users/luispoliveira/workspace/luispoliveira/everything-copilot-cli/.github/skills/financial-calculations/scripts/mortgage_calculator.py --amount 200000 --rate 3.5 --years 30

2. FIRE Projector (fire_projector.py)

Projects investment growth with compound interest.

# Usage Example
python /Users/luispoliveira/workspace/luispoliveira/everything-copilot-cli/.github/skills/financial-calculations/scripts/fire_projector.py --initial 10000 --monthly 500 --rate 7 --years 20

3. Tax Estimator (tax_estimator.py)

Estimates net salary (approximate) and capital gains tax in Portugal.

# Usage Example (Capital Gains)
python /Users/luispoliveira/workspace/luispoliveira/everything-copilot-cli/.github/skills/financial-calculations/scripts/tax_estimator.py --mode capital_gains --profit 1000 --type etf

# Usage Example (Net Salary Estimate - Simple)
python /Users/luispoliveira/workspace/luispoliveira/everything-copilot-cli/.github/skills/financial-calculations/scripts/tax_estimator.py --mode salary --gross 2000