Idaho mortgage calculator
Estimate your monthly payment for a home in Idaho, with property tax at the state average of 0.49% and home insurance included. Rates use the 7.4% national 30-year average from Freddie Mac (week of October 8, 2026).
Estimated monthly payment
- Loan amount
- $334,880
- Down payment
- $83,720
- Interest over 30 years
- $499,831
- Income needed (28% guideline)
- $112,674 a year
Estimate only. Mortgage insurance (PMI) is added when the down payment is under 20%. Real taxes, insurance and lender fees vary by property.
How this is calculated. Principal and interest use the standard fixed-rate loan formula. Property tax uses the Idaho average effective rate: the median real estate tax paid divided by the median home value. Home insurance is a general estimate that you can change.
Sources: Freddie Mac mortgage rate survey, week of October 8, 2026; U.S. Census Bureau American Community Survey, 2020–2024. Updated October 2026. Full methodology.
What a typical home costs per month in Idaho
A home valued at the Idaho median of $418,600 (the Census Bureau's figure for owner-occupied homes), bought with 20% down at 7.4% over 30 years, comes to about $2,629 a month. That is $2,319 in principal and interest, $171 in property tax and $140 in insurance.
Over a year that is 40.6% of the state's median household income of $77,800. Keeping housing costs near 28% of gross income would take a household income of about $112,674.
Property tax in Idaho
Idaho has the 44th highest effective property tax rate of the 50 states at 0.49%, below the typical state rate of 0.80%. The median Idaho homeowner pays $2,038 a year.
| Home price | Tax per year | Tax per month |
|---|---|---|
| $200,000 | $974 | $81 |
| $300,000 | $1,461 | $122 |
| $400,000 | $1,947 | $162 |
| $500,000 | $2,434 | $203 |
| $750,000 | $3,651 | $304 |
These figures apply the statewide average rate. Rates differ between counties and taxing districts, and some homes qualify for exemptions.
States with similar property tax rates
Questions about Idaho mortgage payments
What is the property tax rate in Idaho?
The average effective property tax rate in Idaho is 0.49%. Census Bureau data shows homeowners paid a median of $2,038 a year on homes with a median value of $418,600. Your own rate depends on your county, city and school district.
How much is the monthly mortgage payment on a median-value home in Idaho?
About $2,629 a month including property tax and insurance, assuming 20% down at 7.4% on a 30-year loan. Principal and interest alone come to $2,319.
How much income do I need to buy a home in Idaho?
A common guideline keeps housing costs under 28% of gross income. For the median-value home above, that works out to about $112,674 a year. Lenders also look at debts, credit score and savings, so your own number may differ.
Does this calculator include property tax and insurance?
Yes. It adds property tax at 0.49% of the home price and home insurance at 0.4% of the home price as a starting estimate. Change either number to match a real quote. Mortgage insurance is added automatically when the down payment is under 20%.
Last updated October 2026. See the methodology for sources and limits.