Buyer Closing Cost Calculator Formula

Understand the math behind the buyer closing cost calculator. Each variable explained with a worked example.

Use the Buyer Closing Cost Calculator

Formulas Used

Total Cash Needed at Closing

total_cash_needed = down_payment + net_closing_costs

Down Payment

down_payment_amt = down_payment

Gross Closing Costs

gross_closing_costs = closing_costs

Net Closing Costs (after seller credit)

net_costs = net_closing_costs

Closing Costs as % of Purchase

costs_as_pct = net_closing_costs / purchase_price * 100

Loan Amount

loan_amt = loan_amount

Variables

VariableDescriptionDefault
purchase_pricePurchase Price(USD)400000
down_payment_pctDown Payment(%)10
origination_pctLoan Origination Fee(%)1
appraisal_feeAppraisal Fee(USD)500
inspection_feeHome Inspection(USD)400
title_lender_policyLender Title Policy(USD)800
owner_title_policyOwner Title Policy(USD)1400
prepaid_tax_monthsPrepaid Tax (months)3
monthly_taxMonthly Property Tax(USD)350
prepaid_insurance_monthsPrepaid Insurance (months)14
monthly_insuranceMonthly Insurance(USD)125
seller_creditSeller Credit Toward Costs(USD)0
down_paymentDerived value= purchase_price * down_payment_pct / 100calculated
loan_amountDerived value= purchase_price - down_paymentcalculated
origination_feeDerived value= loan_amount * origination_pct / 100calculated
prepaid_taxesDerived value= prepaid_tax_months * monthly_taxcalculated
prepaid_insDerived value= prepaid_insurance_months * monthly_insurancecalculated
closing_costsDerived value= origination_fee + appraisal_fee + inspection_fee + title_lender_policy + owner_title_policy + prepaid_taxes + prepaid_inscalculated
net_closing_costsDerived value= closing_costs - seller_creditcalculated

How It Works

Buyer Closing Costs

Buyers need to bring the down payment plus closing costs to the closing table. Understanding total cash requirements prevents surprises.

Cash Needed = Down Payment + Closing Costs - Seller Credits

Buyer Closing Cost Categories

  • Lender fees: Origination, appraisal, credit report, underwriting
  • Third-party fees: Title insurance, survey, inspection, attorney
  • Prepaids: Taxes, insurance, and prepaid interest escrowed upfront
  • Government fees: Recording, transfer taxes (if buyer responsibility)

    • Typical Buyer Closing Costs

    Buyer closing costs (excluding down payment) typically range from 2% to 5% of the purchase price. First-time buyer programs may offer assistance to reduce these costs.

    Worked Example

    A $400,000 home with 10% down. Origination 1%, appraisal $500, inspection $400, title $2,200, 3 months tax at $350, 14 months insurance at $125. No seller credit.

    purchase_price = 400000down_payment_pct = 10origination_pct = 1appraisal_fee = 500inspection_fee = 400title_lender_policy = 800owner_title_policy = 1400prepaid_tax_months = 3monthly_tax = 350prepaid_insurance_months = 14monthly_insurance = 125seller_credit = 0
    1. 01Down payment: $400,000 x 10% = $40,000
    2. 02Loan amount: $400,000 - $40,000 = $360,000
    3. 03Origination fee: $360,000 x 1% = $3,600
    4. 04Prepaid taxes: 3 x $350 = $1,050
    5. 05Prepaid insurance: 14 x $125 = $1,750
    6. 06Total closing costs: $3,600 + $500 + $400 + $800 + $1,400 + $1,050 + $1,750 = $9,500
    7. 07Total cash needed: $40,000 + $9,500 = $49,500
    8. 08Closing costs as % of purchase: 2.38%

    Ready to run the numbers?

    Open Buyer Closing Cost Calculator