Total Cost of Mortgage Calculator: Lifetime and If You Sell

The total cost over a full term of n months is one sum:

Total = (M × n) + C + (PMI × p) + ((T + I) ÷ 12 + H) × n

M is the monthly principal-and-interest payment, C is closing costs and points paid in cash, p is the number of months you pay PMI, T and I are annual tax and insurance, and H is the monthly HOA dues. The payment M comes from the standard amortization equation, derived on the mortgage amortization formula page. If you roll closing costs into the loan, C leaves the formula and goes into the amount M is calculated on.

For the worked example, the loan is $400,000 at 7.24% for 360 months, so M is $2,725.99. The total cost of mortgage calculator on this page starts with those figures, and the other inputs are labelled stand-ins: $10,000 of closing costs paid in cash, $150 of PMI for 84 months, $6,000 of annual tax, $2,400 of annual insurance and no HOA.

Inputs as stated; rate from Freddie Mac PMMS, week of October 29, 2026. Computed by this page's calculator on 2026-11-04. Tax and insurance are held flat for simplicity, though real bills can change.

Dividing the grand total by $400,000 gives the cost per dollar borrowed: $3.14. The tool also shows a loan-only version, leaving out tax and insurance because you would pay those on a home with no mortgage. That figure is $2.51. Whichever you use, be consistent when you compare two loans.

The lifetime figure assumes you keep the loan for all 360 months. If you sell or refinance sooner, the remaining payments are replaced by a single payoff of the balance. That changes the formula to:

Total at month h = (M × h) + B_h + C + (PMI × months paid by h) + ((T + I) ÷ 12 + H) × h

B_h is the remaining balance after payment h. The table runs the same example at seven holding periods.

Inputs as in the worked example above. Grand total counts the full $400,000 as repaid, partly by the sale. It excludes the sale price, selling costs and any prepayment penalty. Computed by this page's calculator on 2026-11-04.

Two patterns stand out. Leaving early saves a lot in total: selling at year 7 costs $579,644 less than holding for the full 30 years. But the cost per month you hold the loan is higher in the early years, since closing costs are spread over fewer months and interest is at its peak. In the first 84 payments, $194,913 of the $228,983 paid goes to interest, about 85%, and principal falls by only $34,070. If your plan is to stay about seven years, the seven-year column is your real cost of borrowing, and the 30-year total is a number you will never pay. A plan to speed up the loan rather than sell belongs on the extra payments calculator.

This page publishes no typical closing-cost figure, and the tool has none built in, because your own number already exists on a federal form. The CFPB says a lender must provide you a Loan Estimate within three business days of receiving your application, and the form shows the total closing costs for the loan (read November 2026). Page 2 has the detail. The CFPB's Your Home Loan Toolkit points to Total Loan Costs in Section D as the place to compare what lenders charge, and suggests getting at least three Loan Estimates.

A total cost of mortgage calculator is only as good as the fee line you give it, and choosing that line takes a little care. Regulation Z defines Total Closing Costs as loan costs plus other costs, less lender credits. Other costs include Prepaids and the Initial Escrow Payment at Closing, and those lines hold some first-year tax and insurance. If you enter the full total and also run tax and insurance from month one, a small part is counted twice. To avoid that, subtract the tax and insurance lines in Section F and all of Section G. Money left in escrow is also returned after payoff, so it is a deposit more than a cost.

Points belong in the same field. One point equals one percent of the loan amount, so one point on the example loan is $4,000. Payment method changes the total, too. The CFPB notes a “no closing cost” loan works by charging a higher interest rate or adding the closing costs to your loan amount. Using the toggle on the $10,000 stand-in:

Inputs as in the worked example. Computed by this page's calculator on 2026-11-04.

Over 30 years, each rolled-in dollar costs about $2.45 in total. If you sell after seven years, it costs about $1.49.

Term changes the result more than any fee. This table keeps every stand-in the same and uses both PMMS averages for the week of October 29, 2026: 7.24% for 30 years and 6.60% for 15.

Inputs as in the worked example except rate and term. Computed by this page's calculator on 2026-11-04.

Read the grand-total row with care. The 15-year figure stops at year 15 and so holds half the tax and insurance, but the bills do not stop when the loan does. The loan-only rows are the fair comparison: the shorter term saves $350,195 over the life of the loan, in exchange for $780.47 more each month. PMI on a real 15-year loan would also not match the stand-in here, because the balance falls faster and the 78% automatic termination point (CFPB, read November 2026) arrives sooner. The 15 year vs 30 year calculator goes further into that trade, while the PMI, taxes and insurance calculator finds the month PMI stops, which is the figure to enter in the months field here.

Your loan papers already contain partial totals, and each one uses a different boundary. In 5 Years and Total of Payments cover principal, interest, mortgage insurance and loan costs, so taxes, homeowners insurance and HOA dues sit outside them. That is why they run lower than the grand total above.

Definitions from 12 CFR 1026.37(l) and 1026.38(o), and the CFPB's rate versus APR explainer, read November 2026. Example figures computed on 2026-11-04 from the inputs above; lender disclosures can differ because of prepaid interest and exact fee treatment.

The In 5 Years line is the closest match to the sell-early column, and it has a companion figure, “Principal you will have paid off”: $22,524 in the example. A check worth doing is to run the tool at five years, then add principal paid (the loan less the balance paid at sale), interest, PMI and your Section D figure. If that sum is close to the form's number, you have read the inputs correctly. Then add taxes, insurance and HOA for the amount the Loan Estimate leaves out.

The total measures money paid for the loan and the bills tied to it. It is not a full cost of owning a home, and it is not an investment return.

• Maintenance and repairs. The CFPB's toolkit reminds buyers that your home needs maintenance and repairs. No input covers them, since they depend on the house. Add your own figure if you want a true ownership cost.
• Sale proceeds and price changes. The sell-early column shows what you paid, not what you walk away with.
• Tax deductions. Mortgage interest reduces federal tax only if you meet the rules in IRS Publication 936, which include itemizing on Schedule A. The tool shows pre-tax dollars.
• Rate changes. The maths assumes a fixed rate. For a loan that resets, use the adjustable rate calculator and treat any total as a scenario.
• The value of money over time. A dollar in year 30 counts the same as a dollar today.

Used this way, a total cost of mortgage calculator is best at comparing loans side by side on the same assumptions. The mortgage amortization calculator on the homepage shows the month-by-month schedule behind the interest line.