With a 5.8% top income tax rate and 0.63% property tax, Idaho homeowners face a moderate combined tax burden. This calculator is pre-filled with Idaho numbers: $430,000 median price, 0.63% property tax, $1,200/year insurance.
Last updated: March 13, 2026
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Monthly Payment (Idaho)$0
Loan Details — Idaho
Idaho median: $430,000
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Below 20% triggers PMI on conventional loans
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Average 30-year fixed ~6.75% (March 2026)
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Idaho average: 0.63%
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Idaho average: $1,200/yr
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Property Tax
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Idaho Metro Area Home Prices
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Yearly Amortization Schedule+
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Idaho's Tax Landscape and Your Mortgage
Idaho levies a flat 5.8% income tax on all taxable income. A household earning $150,000 pays approximately $6,525 in state income tax, which reduces the amount available for monthly mortgage payments by roughly $544/month.
At the state's median home price of $430,000, the $0.63% property tax rate adds $226/month to your mortgage payment. That's $2,709/year — below the national median of ~1.1%.
Property Taxes Across Idaho
The 0.63% statewide average masks significant variation. Property taxes are relatively low but rising with home values
Price ranges across the state: Boise has a median of $475,000, while Idaho Falls sits at $345,000 — a $130,000 gap that dramatically changes your monthly payment. At $0.63% property tax, that price difference alone means $68/month more in property tax in Boise.
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Homebuyer Programs and Exemptions
Idaho offers several programs for homebuyers:
Idaho Housing First Loan program with competitive rates
Second mortgage assistance up to 7% of loan amount
Homestead exemption: 50% of assessed value (owner-occupied) or $125,000, whichever is less
Idaho-Specific Considerations
Rapid population growth (especially Boise metro) has driven significant price increases
Flat 5.8% income tax replaced progressive brackets in 2023
Property taxes are relatively low but rising with home values
No transfer tax on real estate
Property tax rates vary by county and levy district — Ada County (Boise) averages ~0.7%, while some rural counties exceed 1%
Compare Idaho Mortgage Rates
See personalized rates from Idaho lenders. LendingTree matches you with up to 5 offers so you can compare and save.
0.39% property tax, 5% top rate. Median home: $232,500.
Alaska Mortgage Calculator
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1.04% property tax, no income tax. Median home: $340,000.
Arizona Mortgage Calculator
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0.62% property tax, 2.5% top rate. Median home: $395,000.
Frequently Asked Questions
What is the average property tax rate in Idaho?
The average effective property tax rate in Idaho is 0.63%. On a $430,000 home (the state median), that works out to approximately $2,709/year or $226/month added to your mortgage payment. Property tax rates vary by county and school district within Idaho — always check your specific jurisdiction's rate. Homestead exemption: 50% of assessed value (owner-occupied) or $125,000, whichever is less
How much does homeowners insurance cost in Idaho?
The average annual homeowners insurance premium in Idaho is approximately $1,200 ($100/month). This is near the national average of approximately $1,500/year. Actual premiums depend on your home's location, age, construction type, and coverage limits.
What first-time homebuyer programs are available in Idaho?
Idaho Housing First Loan program with competitive rates. Second mortgage assistance up to 7% of loan amount. These programs typically have income limits, purchase price caps, and may require homebuyer education courses. Check the Idaho housing finance agency website for current eligibility requirements and application deadlines.
How does Idaho's 5.8% income tax affect home affordability?
Idaho's top income tax rate of 5.8% reduces your take-home pay, which affects how much mortgage you can comfortably carry. On a $150,000 salary, state income tax takes roughly $5,655-$7,395/year (effective rate is lower than the top marginal rate). The tradeoff: Idaho's relatively low 0.63% property tax rate keeps the housing-specific portion of your tax burden lower. Use our paycheck calculator to see your exact take-home pay.
What is the conforming loan limit in Idaho?
The 2026 conforming loan limit in Idaho is $806,500. Loans above this amount are considered jumbo loans and typically carry higher interest rates (0.25-0.5% premium), require larger down payments (10-20%), and have stricter qualification requirements including higher credit scores (700+) and lower debt-to-income ratios.
This calculator is for educational purposes. Tax rates and insurance costs are based on Idaho state averages and may not reflect your specific county, school district, or municipality. Consult a financial professional for advice specific to your situation.