Mortgage Refinance Calculator for Boise, Idaho
Free mortgage refinance calculator for residents of Boise, Idaho (ZIP 83709). Calculate your new monthly payment, break-even point, and lifetime interest savings from refinancing. Include or exclude any closing cost items and choose which to roll into the loan.
3:49 PM
Denver
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$61,978
per year
$477,528
Feb 2026
↑ 1.5% YoYPre-filled for Ada County, ID
Median Home Value: $477,528
Current balance pre-filled at 80% LTV ($382,000). Adjust below to match your actual balance.
Est. Monthly Savings
$117.30/mo
Based on local market data. A 1% rate reduction on this balance saves approximately $318.33/month in interest.
Current Loan
Principal + interest only
New Loan Terms
Extra cash from equity (optional)
Closing Costs
Check each item to include it. For rollable items, choose whether to pay at closing or roll into the loan.
Lender's fee for processing the loan (0.5–1% of loan)
Prepaid interest to lower your rate (1 point = 1% of loan)
Required to determine current home value
Verifies ownership and protects against title defects
Closing agent or attorney fee
County fee to record the new deed/mortgage
Lender's cost to pull your credit (usually paid upfront)
Determines if property is in a flood zone
Interest from closing date to first payment; enter estimated days × daily rate
Initial deposit for taxes & insurance escrow
New Monthly Payment
$1,792.70
Monthly Savings
$117.30
$1,408/year
Break-Even
4 mo
≈ 0.3 years
New Loan Amount
$283,625
Incl. $3,625 rolled costs
Closing Cost Summary
Total Costs
$4,075
Rolled Into Loan
$3,625
Paid at Closing
$450
Lifetime Interest Comparison
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Using This Mortgage Refinance Calculator in Boise, Idaho
Residents of Boise, Idaho (ZIP 83709) have a median household income of $61,978 per year and a median home value of $308,734. Boise is located in Ada County. Use this mortgage refinance calculator to make informed financial decisions based on local economic conditions.
Local Housing Market: Boise, Idaho
Price-to-income ratio: 7.7x — the median home costs 7.7 times the annual household income.
Zillow ZHVI
$477,528
Feb 2026
↑ 1.5%Median Income
$61,978/yr
Max Payment (28%)
$1,446/mo
Max Total Debt (36%)
$1,859/mo
In Boise, Idaho, the median household earns $61,978 per year ($5,165/month). Following the 28/36 rule, a median-income household can comfortably afford a monthly housing payment of up to $1,446 and total monthly debt payments of up to $1,859. Boise is part of Ada County. Over the past 12 months (Feb 2025 – Feb 2026), home values in Boise have risen by 1.5% (+$6,850), according to Zillow ZHVI data. These benchmarks can help you determine a realistic home price range before using the calculator above.
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