Idaho's population boom brought a wave of new duplexes and fourplexes to the Treasure Valley and Coeur d'Alene. Prices rose fast, so investors use DSCR loans to qualify on the rent each building actually produces.
In short: LendingStreet offers DSCR loans on 2-4 unit rentals throughout Idaho, sized on the total rent from every unit rather than your personal income. Loans start at $150,000 with no stated maximum, with up to 80% LTV on a purchase, up to 75% on a cash-out, a 1.0x standard minimum ratio and a 620 minimum credit score; LLC borrowers are standard. In Idaho, budget taxes without the homeowner's exemption, and expect appraisers to rely on MLS data because sale prices are not public.
In the Treasure Valley, Boise's North End, Bench and Vista neighborhoods have older duplexes and small buildings, while Nampa, Caldwell, Meridian and Kuna have many newer duplexes and fourplexes built in the last 20 years, often in subdivisions with HOAs.
Coeur d'Alene and Post Falls in North Idaho have strong demand and higher prices. Idaho Falls, Pocatello (home to Idaho State) and Twin Falls offer lower prices and steady rents.
Much of the Treasure Valley's newer small multifamily was built as for-rent product, with simple two-bedroom layouts, attached garages and individual utility meters, which keeps operating costs predictable.
| Area | Typical 2-4 unit stock | What to check |
|---|---|---|
| Boise | Older duplexes; small buildings | Higher prices; tight ratios |
| Nampa, Caldwell, Meridian | Newer duplexes and fourplexes | HOA rules; subdivision leasing limits |
| Coeur d'Alene and Post Falls | Newer and older small buildings | High prices; wildfire insurance |
| Idaho Falls, Pocatello, Twin Falls | Lower-priced duplexes | Steady but smaller markets |
A DSCR loan on a 2-4 unit building looks at one number: the combined monthly rent of every unit divided by the full monthly payment, which includes principal, interest, property taxes, insurance and any HOA dues. A ratio of 1.0x means the rent exactly covers the payment, and that is the standard minimum.
For occupied units, the lender uses the signed leases and checks them against the appraiser's market rent schedule. For vacant units, market rent from the appraisal is usually used. No W-2s or tax returns are needed, and the property can be held in an LLC.
The ratio is only as accurate as the costs behind it. In Idaho, use the current local tax bill as it will look after your purchase and a real insurance quote for the whole building, not a listing estimate or the seller's numbers, before you set your offer.
Idaho's homeowner's exemption removes a large share of a primary residence's value from taxation, but it does not apply to rentals. When you buy from an owner-occupant, the exemption comes off and the bill rises. Budget on the full assessed value.
Idaho has no real estate transfer tax, which keeps closing costs low. It is also a non-disclosure state, so sale prices are not in public records. Appraisers rely on MLS data and agent reports, which can limit comparable sales for unusual properties.
Ada and Canyon counties reassess annually, and fast price growth has raised assessed values. Check the current assessment, levy and any irrigation district charges, which appear on some Treasure Valley tax bills.
This example is illustrative and not a quote. An investor buys a newer fourplex in Nampa for $720,000. Rent is $1,400 per unit, or $5,600 a month across all four units. Taxes are budgeted without the homeowner's exemption.
At 80% LTV, the loan is $576,000, estimated principal and interest is about $3,832, taxes are $542 a month and insurance is $200, for a total payment of about $4,574 and a DSCR of about 1.22x. The fourplex clears 1.0x. A similar building in Boise would cost more for similar rent, which is why many investors buy in Canyon County.
| Item | Amount |
|---|---|
| Purchase price | $720,000 |
| Combined monthly rent | $5,600 |
| Loan amount (80% LTV) | $576,000 |
| Estimated principal and interest | $3,832 |
| Property taxes (monthly) | $542 |
| Insurance (monthly) | $200 |
| Total monthly payment | $4,574 |
| DSCR | About 1.22x |
Wildfire risk is significant in forested and foothill areas, especially around Boise's foothills and North Idaho. Insurers may charge more or limit coverage in high-risk areas. Snow load matters in the north and at higher elevations. Get a full quote early.
Idaho preempts local rent control, and statewide landlord-tenant law is relatively simple. Some cities have adopted rules on notice periods or fees, so check local ordinances. HOAs in newer subdivisions may limit leasing or require minimum lease terms.
If a fourplex is in a subdivision with an HOA, read the covenants for any rental restrictions before you buy.
Idaho landlords should also review deposit and notice rules, and confirm that each unit has a separate address and meters where possible, which makes leasing and tenant-paid utilities simpler.
A duplex, triplex and fourplex all qualify the same way, on combined rent, with up to 80% LTV on purchases and up to 75% on cash-out. The practical difference is risk: a duplex with one vacant unit loses half its income, while a fourplex loses a quarter.
If you are looking at a five- to eight-unit building, it is still a residential loan, but expect closer review and possibly lower leverage, which varies by program. Buildings of nine units or more move to commercial financing.
Having these items ready shortens underwriting and keeps the appraisal on track.
Share the property address, unit count, rents and the loan amount you want. LendingStreet will check the ratio at a few loan amounts using local tax and insurance figures and show you what fits, including sub-1.0 DSCR programs where they make sense. Our investor loans are business-purpose loans on non-owner-occupied property. Get a quote with the form below or call (877) 298-1001.
No. It applies only to primary residences. Budget taxes on full assessed value.
No. Idaho has no real estate transfer tax.
Idaho is a non-disclosure state, so sale prices are not public. Appraisers rely on MLS data, which can be thin for unusual properties.
Yes. We finance 2-4 unit rentals throughout Idaho, including North Idaho, qualified on the combined rent of the units.
No. The loan qualifies on the combined rent of the units. You need a credit score of 620 or higher, reserves and, if you borrow in an LLC, your entity documents.
Yes. An empty unit is typically counted at appraised market rent. Leasing it before closing, or showing it is rent-ready, helps the file.
Our investor loans are business-purpose loans on non-owner-occupied property, so these DSCR programs are not for a building you will live in.
Yes, up to 75% LTV, as long as the combined rent covers the new payment at the program minimum. Seasoning rules vary by program.
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