tax-calculator-Turkiye.py

from requests import get

TAX_BRACKETS = {
    110000.0: 0.15,
    230000.0: 0.20,
    580000.0: 0.27,
    3000000.0: 0.35,
    float("inf"): 0.40,
}

SOURCE_CURRENCY = "USD"
TARGET_CURRENCY = "TRY"
TOTAL_INCOME_YEAR = 6000.0 * 12
TOTAL_OUTCOME_YEAR = 300000.0  # Rent, Food, etc. (Yearly) Target Currency


def get_currency_rate():
    src, trg = SOURCE_CURRENCY.lower(), TARGET_CURRENCY.lower()
    if src == trg:
        return 1.0
    api_url = f"https://latest.currency-api.pages.dev/v1/currencies/{src}.json"
    response = get(api_url).json()
    return response[src][f"{trg}"]


RATE = get_currency_rate()

TAX_EXEMPTION = 0.8  # KVK.5520/10
TAX_DISCOUNT = 230000.0  # Young People Tax Discount


def calculate_tax():
    total_income_year = TOTAL_INCOME_YEAR * RATE
    total_outcome_year = TOTAL_OUTCOME_YEAR
    taxable_income = total_income_year - total_outcome_year

    discounted_income = taxable_income - TAX_DISCOUNT
    exemptioned_income = discounted_income * TAX_EXEMPTION
    declerated_income = discounted_income - exemptioned_income
    print(f"Taxable Income: {taxable_income:.2f}")
    print(f"Discounted Income: {discounted_income:.2f}")
    print(f"Exemptioned Income: {exemptioned_income:.2f}")
    print(f"Declerated Income: {declerated_income:.2f}")
    print("")

    tax = 0
    for limit, rate in TAX_BRACKETS.items():
        if taxable_income <= 0:
            break
        bracket = min(limit, declerated_income)
        tax += bracket * rate
        declerated_income = max(0, declerated_income - bracket)

    return tax


tax = calculate_tax()

print(f"Total Income {TOTAL_INCOME_YEAR * RATE:.2f}")
print(f"Total Outcome: {TOTAL_OUTCOME_YEAR:.2f}")

print(f"Tax: {tax:.2f}")