If you’re buying in Boise, a conventional home loan is one of the main mortgage options you’ll compare. In practical terms, it’s a mortgage that is not backed by a government program like FHA or VA, and it often fits borrowers with solid credit, stable income, and either a moderate down payment or enough cash to avoid PMI.
This page walks through how conventional loans work for Boise buyers, including mortgage insurance, when a loan becomes jumbo in the Boise area, and what lenders may look for when reviewing your application.
A conventional mortgage is a home loan that is not guaranteed or insured by the government. For Boise buyers, that matters because conventional financing is often the baseline option to compare against FHA, VA, and jumbo loans when you are deciding which path best fits your credit profile, down payment, and purchase price.
Most conventional loans fall into one of two broad categories: conforming or jumbo. A conforming conventional loan stays within the applicable county loan limit set each year, while a jumbo loan goes above that limit. Both are conventional in the sense that they are not government-backed, but conforming loans generally follow standard rules associated with Fannie Mae and Freddie Mac, while jumbo financing typically involves a different risk profile and often stricter approval standards.
Compared with government-backed options, conventional loans may be a strong fit for borrowers with stronger overall files who want flexible down payment options, competitive pricing, or the ability to remove PMI later if it applies.
As mentioned, conventional loans are not insured by the government. However, if less than 20% is put down towards the purchase price of a home, the mortgage must be insured. But rather than being covered by a government entity, a conventional mortgage will be insured by a private insurance company.
With a down payment of less than 20%, Private Mortgage Insurance (PMI) will need to be paid. This insurance is provided by a firm within the private sector. In order to avoid having to pay PMI, you would need to come up with a down payment of at least 20% of the purchase price of the property.
That’s not to say that you will be stuck paying PMI throughout the life of the mortgage. There is a way to eliminate PMI at some point during your mortgage term.
To do so, you will need to bring your home loan balance down to 80% of the property’s original appraised value. At this point, you can request that your lender cancel the PMI. Once you bring the loan balance down to 78% of the value of the home, your lender will be required by law to eliminate your PMI.
For Boise-area buyers, it helps to know that conforming loan limits are county-based, not city-based. In other words, there is no separate Boise city conforming limit. Boise is in Ada County, and every city and ZIP code within Ada County uses the same conforming loan limit for a single-family home.
Each year, loan limits for conventional loans are set by FHFA. These limits typically coincide with changes in average home prices across the nation and vary based on location. Conforming loan limits are usually determined late in the year and take effect on January 1st each year.
In 2026, the conforming loan limit for Boise is $832,750. For 2026, the FHFA-set conforming loan limit for Ada County is $832,750 for a single-family home, which is the same as the 2026 national baseline. Because Ada County is not classified by FHFA as a high-cost area, any mortgage above that county-level limit requires jumbo financing.
That county-based approach matters if you are shopping in Boise or nearby Ada County communities, because the same conventional limit applies throughout the county. The only Idaho county with a higher high-cost conforming limit in 2026 is Teton County.
As of 2026-06-30, Zillow’s Home Value Index for Boise, ID is $508,258.
Check out our mortgage loan limit tool for conventional, FHA, and VA loans.
For many Boise buyers, a conventional loan can be a strong choice when you have solid credit, stable income, and want more flexibility in how you structure the loan. It may also make sense if you want to buy with less than 20% down but still prefer PMI that can eventually be removed.
An FHA loan may be worth comparing if your credit profile is weaker or you want a more forgiving path on overall qualification. A VA loan can be especially compelling for eligible military borrowers because it is designed specifically for that audience. If the home price or loan amount pushes you above Ada County’s conforming limit, then jumbo financing becomes the relevant comparison rather than standard conforming conventional options.
The best fit often comes down to your credit strength, available down payment, eligibility for specialized programs, and whether your target purchase price stays within conforming limits.
Like any other type of mortgage, lenders will assess each applicant before a mortgage is approved, and conventional loans are no exception. But qualification is not based on one universal checklist alone. Approval can vary by lender, loan purpose, occupancy type, reserves, documentation, and overall file strength.
Credit score. Credit still plays a major role in conventional approval, but there is not one single standard that applies in every case. For manually underwritten conventional loans, a 620 minimum still applies under current Fannie Mae guidance. For AUS-underwritten loans, Fannie Mae’s Desktop Underwriter no longer enforces a hard 620 minimum and instead evaluates the file more holistically. Even so, many lenders continue to use overlays at or above 620.
Down payment. You may be able to put as little as 3% down on a conventional mortgage in qualifying situations, including certain first-time buyer programs. A 5% down payment is more typical for many repeat buyers purchasing a primary residence, while second homes and investment properties generally require more.
Income and debt-to-income ratio. Your income will need to be high enough to support a mortgage in addition to your other monthly obligations. Lenders will look at your debt-to-income (DTI) ratio, along with compensating factors such as credit, reserves, and the overall strength of the application.
For manually underwritten loans, Fannie Mae’s maximum DTI is generally 36%, though it can go up to 45% with qualifying credit score and reserve factors. For loan casefiles underwritten through DU, the maximum allowable DTI is 50%. Some lenders may apply stricter caps.
Reserves, documentation, and occupancy. Beyond credit, down payment, and DTI, lenders may also evaluate how much cash you have left after closing, how your income is documented, whether the home will be a primary residence or not, and the overall risk profile of the loan.
Is a conventional loan better than an FHA loan for buying in Boise?
It depends on your profile. Conventional financing often appeals to buyers with stronger credit or those who want the option to remove PMI later. FHA may be worth a closer look if your qualification profile needs more flexibility.
Can I use gift funds for a conventional home loan in Idaho?
In many cases, gift funds can be used toward a conventional home purchase, but the exact rules can depend on the loan structure, occupancy, and lender requirements. It’s best to confirm the documentation your lender will want early in the process.
Can PMI be removed from a conventional loan later?
Yes. If your conventional loan has PMI, you may be able to request cancellation once your balance reaches 80% of the home’s original appraised value. Your lender must remove it once the balance reaches 78% of that value, assuming the loan meets the applicable requirements.
When does a conventional loan become a jumbo loan in Boise?
For Boise buyers, the key number is the Ada County conforming loan limit, since loan limits are county-based rather than city-based. Once your mortgage amount goes above the applicable conforming limit, the loan moves into jumbo territory.
Sammamish Mortgage can help. We serve clients across Washington, Idaho, Colorado, Oregon, and California. Since 1992, we’ve been providing several mortgage programs and products with flexible qualification criteria to borrowers across the Pacific Northwest. Visit our website to get an instant rate quote or to use our online mortgage calculator. Or, reach out to us if you are ready to get pre-approved for a mortgage.
It depends on your profile. Conventional financing often appeals to buyers with stronger credit or those who want the option to remove PMI later. FHA may be worth comparing if your credit profile is weaker or you want a more forgiving path on overall qualification.
You may be able to put as little as 3% down in qualifying situations, including certain first-time buyer programs. A 5% down payment is more typical for many repeat buyers purchasing a primary residence, while second homes and investment properties generally require more.
In many cases, gift funds can be used toward a conventional home purchase. The exact rules can depend on the loan structure, occupancy, and lender requirements, so it is important to confirm the documentation your lender will want early in the process.
For Boise buyers, the key number is the Ada County conforming loan limit because loan limits are county-based rather than city-based. Once your mortgage amount goes above the applicable conforming limit, the loan moves into jumbo territory.
Yes. If your conventional loan has PMI, you may be able to request cancellation once your balance reaches 80% of the home’s original appraised value. Your lender must remove it once the balance reaches 78% of that value, assuming the loan meets the applicable requirements.
Credit plays a major role in conventional approval, but there is not one single standard that applies in every case. For manually underwritten conventional loans, current Fannie Mae guidance still applies a 620 minimum, while Desktop Underwriter evaluates AUS files more holistically. Even so, many lenders continue to use overlays at or above 620.
A conventional mortgage is a home loan that is not guaranteed or insured by a government program such as FHA or VA. In Boise, it is often one of the main options buyers compare when deciding which loan type best fits their credit profile, down payment, and purchase price.
If you put less than 20% down on a conventional home purchase, you will generally need private mortgage insurance, or PMI. Unlike government-backed mortgage insurance, PMI on a conventional loan is provided by a private insurance company.
Conforming loan limits in the Boise area are based on county, not city. Boise is in Ada County, and for 2026 the FHFA-set conforming loan limit for a single-family home in Ada County is $832,750. Any mortgage above that county-level limit requires jumbo financing.
Lenders commonly review credit, down payment, income, debt-to-income ratio, reserves, documentation, occupancy, and the overall strength of the file. Approval can vary by lender, loan purpose, and risk profile rather than following one universal checklist.
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