Mortgage Calculator Idaho 2026: Payment, PMI & Homeowner’s Exemption
This mortgage calculator for Idaho estimates your full monthly payment — principal & interest, property tax, homeowners insurance and PMI — and explains Idaho’s homeowner’s exemption. Enter your own rate; everything is calculated privately in your browser.
A mortgage calculator for Idaho estimates the full monthly cost of a Idaho home loan: principal and interest from standard amortization, plus property tax, homeowners insurance and private mortgage insurance (PMI) when you put down less than 20%. Idaho has no real estate transfer tax, so closing costs are mainly lender, title and escrow charges.
How the Mortgage Calculator Idaho Formula Works (Worked Example)
Principal and interest use the standard amortization formula M = P × r(1+r)n ÷ ((1+r)n − 1), where P is the loan amount, r the monthly rate (annual rate ÷ 12) and n the number of payments. Property tax is the home price × your local rate ÷ 12, insurance is your annual premium ÷ 12, and PMI is the loan amount × your PMI rate ÷ 12. Example: a $300,000 Idaho home, 10% down, 30-year fixed at a user-entered 6.5% (click Load Example above to reproduce it).
| Item | Inputs | Monthly |
|---|---|---|
| Principal & interest | $270,000 loan, 6.5%, 360 payments | $1,706.58 |
| Property tax | 0.50% of $300,000 ($1,500/yr) | $125.00 |
| Homeowners insurance | $1,450/yr (example — use your quote) | $120.83 |
| PMI | 0.6% of $270,000 ($1,620/yr) | $135.00 |
| Total monthly payment | $2,087.42 | |
| Transfer tax (one-time) | Idaho has no real estate transfer tax | $0.00 |
Over 30 years this loan pays about $344,370 in interest. Your rate is an input, not an assumption — check the current weekly national average in Freddie Mac’s Primary Mortgage Market Survey and compare lender Loan Estimates.
Idaho Property Tax and the Homeowner’s Exemption
Idaho’s effective property tax rate on owner-occupied homes is 0.50% of home value, according to the Tax Foundation (2026 edition, based on Census American Community Survey data). That low figure reflects the homeowner’s exemption (Idaho Code § 63-602G): a primary residence is exempt on 50% of its assessed value, up to $125,000. You must apply with your county assessor; a second home or rental does not qualify and is taxed on its full value, so its effective rate can be roughly double. 2026 House Bill 843 removed proration of the exemption for the year you move in, according to Idaho State Tax Commission guidance.
| Property tax rate | Annual tax on $300,000 | Added to monthly payment |
|---|---|---|
| 0.35% | $1,050 | $87.50 |
| 0.50% (state effective rate) | $1,500 | $125.00 |
| 0.70% | $2,100 | $175.00 |
Idaho Closing Costs: No Transfer Tax
Idaho does not charge a state or local real estate transfer tax (verified in Bankrate’s state transfer tax list), so you will not see one on an Idaho Loan Estimate or Closing Disclosure. Most closing costs are set by your lender and title company.
| Idaho item | Amount | Usually paid by |
|---|---|---|
| Real estate transfer tax | None in Idaho | — |
| Escrow deposits for tax and insurance | Set by your lender — see your Loan Estimate | Buyer |
| Recording, lender, appraisal and title charges | Vary by county, lender and title company — compare Loan Estimates | Negotiable |
Some costs are negotiable, and sellers sometimes cover part of a buyer’s closing costs as a concession.
How Idaho Mortgage Rates Affect Your Payment
Rates in Idaho follow national mortgage markets and vary by lender, credit score, down payment and loan type. On a $455,000 home with 20% down, an example rate of 6.85% produces a monthly principal and interest payment of approximately $2,385. A 0.25-point rate increase adds roughly $61 to that payment, so shopping multiple lenders can save thousands over the life of the loan.
Adjustable-rate mortgages (ARMs) often start lower but carry rate-reset risk, which is why many Idaho homebuyers choose 30-year fixed loans for payment predictability. FHA loans (3.5% down) and VA loans (0% down for eligible veterans) are also available in Idaho.
First-Time Buyer Programs in Idaho
The Idaho Housing and Finance Association (IHFA) offers first-time buyer loans with down payment assistance through participating lenders. Check its current income limits, purchase-price limits and assistance amounts before you apply.
FHA loans are available nationwide and require only 3.5% down with a 580+ credit score — an option for first-time buyers in Idaho who have limited savings. USDA loans offer 0% down for eligible rural properties in Idaho. VA loans are available to qualified veterans and active-duty service members with no down payment required and no PMI.
If your down payment is below 20%, Private Mortgage Insurance (PMI) on the $270,000 example loan adds $135.00/month at a 0.6% annual rate. The Urban Institute puts typical PMI at roughly 0.46%–1.5% of the loan per year depending on credit score. PMI can be removed once your loan-to-value ratio reaches 80%, so extra payments accelerate the timeline to dropping PMI.
Last updated: October 2026. Estimates only — confirm figures with your lender and local tax office.
Frequently Asked Questions
What is the average mortgage rate in Idaho in 2026?
Idaho mortgage rates track national averages and change weekly. Check the Freddie Mac Primary Mortgage Market Survey for the current 30-year fixed average, then compare quotes from several lenders - your rate depends on credit score, down payment and loan type.
What is the average monthly mortgage payment in Idaho?
For a $455,000 home with 20% down at an example rate of 6.85%, the estimated PITI (principal, interest, taxes and insurance) is about $2,696 a month, assuming a 0.50% property tax rate and $1,450 a year for insurance. Your payment depends on your price, rate, local tax rate and insurance quote.
Do I need PMI in Idaho?
Yes — if your down payment is less than 20%, lenders in Idaho require Private Mortgage Insurance (PMI) on conventional loans. The Urban Institute puts typical PMI at about 0.46%–1.5% of the loan amount per year, depending on credit score. PMI is removed once you reach 20% equity.
What is the average home price in Idaho?
Home prices vary widely by city and county in Idaho, and medians change monthly. The $455,000 default in this calculator is an example, not a market median - enter the price of the home you are considering, or check current local sales data from your agent or the state Realtors association.
What is the property tax rate in Idaho?
Idaho’s effective property tax rate on owner-occupied homes is 0.50% according to the Tax Foundation - about $2,275 a year on a $455,000 home. A primary residence is exempt on 50% of its assessed value up to $125,000 under the homeowner’s exemption; second homes and rentals are taxed on full value.
Does Idaho have a real estate transfer tax?
No. Idaho has no state or local real estate transfer tax, so a home purchase does not add one to your closing costs. You will still pay county recording fees and lender, title and escrow charges, which are listed on your Loan Estimate.
What is the monthly payment on a $300,000 house in Idaho?
With 10% down and a 30-year fixed loan at 6.5%, principal and interest is about $1,707 a month. Adding 0.50% property tax ($125), $1,450 a year insurance ($121) and 0.6% PMI ($135) brings the total to about $2,087 a month.