Advanced Mortgage APR Calculator

See how fees and points raise borrowing costs. Review monthly payment, financed amount, and APR. Use detailed inputs to compare mortgage offers with clarity.

Mortgage APR Calculator Form

Enter pricing, fees, credits, and escrow details. The tool estimates payment, amount financed, APR, and early amortization trends.

Example Input Data Table

Field Example Value
Home Price$400,000
Down Payment20%
Note Interest Rate6.75%
Loan Term30 years
Origination Fee$1,800
Discount Points1.00%
Underwriting Fee$995
Processing Fee$795
Lender Credits$1,200
Annual Property Tax$4,800
Annual Insurance$1,800

Formula Used

1. Base loan amount = Home price − Down payment.

2. Gross loan amount = Base loan amount + Financed closing costs.

3. Discount points cost = Gross loan amount × Points %.

4. Upfront finance charges = Origination fee + points + lender fees + prepaid finance charges − lender credits.

5. Amount financed = Gross loan amount − Upfront finance charges.

6. Principal and interest payment uses the standard amortization formula:

Payment = P × [r / (1 − (1 + r)^−n)]

Here, P is gross loan amount, r is periodic note rate, and n is total number of payments.

7. APR is solved by finding the periodic rate that makes the present value of scheduled payments equal the amount financed.

8. Effective APR = (1 + periodic APR rate)^(payments per year) − 1.

How to Use This Calculator

  1. Enter the home price and your down payment.
  2. Select whether the down payment is a percent or dollar amount.
  3. Add the note rate, loan term, and payment frequency.
  4. Fill in points, lender fees, prepaid finance charges, and any lender credits.
  5. Enter financed closing costs if they will be rolled into the loan.
  6. Add mortgage insurance, taxes, insurance, and HOA to estimate full periodic housing cost.
  7. Submit the form to view APR, financed amount, payments, and the balance graph.
  8. Use the CSV or PDF buttons to save the summary results.

FAQs

1. What is mortgage APR?

Mortgage APR estimates the full yearly borrowing cost. It includes the note rate plus certain prepaid finance charges and sometimes required mortgage insurance.

2. Why is APR usually higher than the interest rate?

APR is often higher because it includes points, origination charges, underwriting fees, processing fees, and similar lender costs beyond the simple note rate.

3. Are property taxes included in APR?

Property taxes are usually part of escrow and housing payment budgeting, but they are not generally treated as finance charges for APR calculation.

4. Do lender credits lower APR?

Yes. Lender credits reduce upfront finance charges, which can increase the amount financed and lower the calculated APR result.

5. What are discount points?

Discount points are optional prepaid charges paid to reduce the note rate. One point typically equals one percent of the loan amount.

6. Can I compare fixed and adjustable loans here?

This version works best for fixed-rate comparisons. Adjustable loans need rate change assumptions and future payment resets for stronger APR modeling.

7. Why does financed closing cost change results?

Financing closing costs increases the principal used for payment calculation. That affects payment size, total interest, and the estimated APR.

8. Is this calculator a legal disclosure?

No. It is an educational estimate. Official loan disclosures from your lender should be used for final decisions and compliance review.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.