: Look at your take-home pay and subtract all current expenses (utilities, food, car, savings goals). What’s left is your true maximum for housing. The Calculation : Household Gross Annual Income : $100,000 (example) Estimated Monthly Payment : $2,500 (based on a 30% DTI)
: Approximately $340,000 (assuming a $50k down payment and ~7% interest rate). Key Affordability Factors
: Aiming for 20% avoids Private Mortgage Insurance (PMI), which can save you hundreds monthly. what value house can i afford to buy
: Spend no more than 28% of your gross monthly income on housing expenses and no more than 36% on total debt.
AI responses may include mistakes. For financial advice, consult a professional. Learn more : Look at your take-home pay and subtract
: Even a 1% shift in rates can change your buying power by tens of thousands of dollars.
def calculate_affordability(annual_income, monthly_debts, down_payment, interest_rate=0.07, property_tax_rate=0.012, insurance_rate=0.0035, pmi_rate=0.005, dti_limit=0.36): # Monthly gross income monthly_gross_income = annual_income / 12 # Maximum allowable monthly mortgage payment (Principal, Interest, Taxes, Insurance - PITI) # Using a standard 36% Debt-to-Income (DTI) ratio minus existing monthly debts max_piti = (monthly_gross_income * dti_limit) - monthly_debts if max_piti <= 0: return 0, 0 # Loan terms months = 360 # 30-year mortgage monthly_rate = interest_rate / 12 # Solving for Home Price (P) # PITI = [Principal & Interest] + [Taxes] + [Insurance] + [PMI if down payment < 20%] # Principal & Interest = L * [r(1+r)^n] / [(1+r)^n - 1] # L = P - Down Payment # Approximation constants annual_tax_ins_pmi = property_tax_rate + insurance_rate def estimate_price(price): loan_amount = max(0, price - down_payment) pmi = (loan_amount * pmi_rate / 12) if (down_payment / price < 0.20) else 0 monthly_pi = loan_amount * (monthly_rate * (1 + monthly_rate)**months) / ((1 + monthly_rate)**months - 1) monthly_tax_ins = (price * annual_tax_ins_pmi) / 12 return monthly_pi + monthly_tax_ins + pmi # Binary search for the price low = down_payment high = annual_income * 10 # Reasonable ceiling for _ in range(20): mid = (low + high) / 2 if estimate_price(mid) < max_piti: low = mid else: high = mid return round(low), round(max_piti) # Example profile: $100k income, $500 monthly debt, $50k down affordability, payment = calculate_affordability(100000, 500, 50000) print(f"Price: {affordability}, Payment: {payment}") Use code with caution. Copied to clipboard Key Affordability Factors : Aiming for 20% avoids
For a precise number, you can use the Mortgage Affordability Calculator from or check current rates at Bankrate .