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Long-Term RentalTreasure Valley, Idaho
Long-Term Rental Investment in the Treasure Valley: The Numbers
The complete financial model for a Treasure Valley long-term rental investment — what to buy, what to expect, and how to evaluate performance.
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Dennis Fomin
Fomin & Company · Associate Broker, GRI, RSPS · Active Investor · 2026
Quick Answer
What does a long-term rental investment look like financially in the Treasure Valley in 2026?
A $420,000 single-family home in Meridian purchased with 25% down ($105,000) at 7.25% produces a monthly P&I payment of approximately $2,160. Then taxes and insurance add approximately $450/month. Total PITI: ~$2,610. As a result, with a market rent of $2,100-$2,200 for a 3BR in Meridian in 2026, a standard leveraged purchase is cash-flow negative by $400-$500/month before maintenance and vacancy. Instead, the investment thesis is equity accumulation and appreciation — not monthly cash flow. Still, investors who buy at the right basis in strong submarkets and hold 7-10 years have produced strong total returns even in cash-flow-negative initial positions.
Dennis Fomin — Founder, Fomin & Company | Active Treasure Valley Investor. I own long-term rentals in the Treasure Valley. So here is the math I actually run — not the optimistic version that makes a deal look better than it is.
The Full Long-Term Rental Financial Model
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Purchase price and financing$420,000 purchase price. 25% down = $105,000. Loan amount = $315,000 at 7.25% (an illustrative investment rate — with 30-year averages above 7% in late 2026, many investor loans price higher, which makes cash flow worse). Monthly P&I = $2,149. 30-year term.
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Monthly carrying costP&I: $2,149. Property tax (approx 0.7% annually): $245/mo. Insurance: $150/mo. HOA (if applicable): $50-$150/mo. Total PITI: $2,544-$2,694.
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Revenue — market rent3BR/2BA in Meridian: $2,050-$2,250/month in 2026. For example, use $2,150 as the base case. Vacancy allowance (5-8%): subtract $107-$172/month. Effective gross income: ~$1,978-$2,043/month.
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Operating expensesMaintenance reserve (10% of rent): $215/mo. Property management (8-10% of rent if hired): $172-$215/mo. Total operating expenses: $387-$430/mo.
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Net operating incomeThen effective gross income ($2,043) minus operating expenses ($430) = NOI of approximately $1,613/month.
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Cash flowFinally, NOI ($1,613) minus PITI ($2,619 midpoint) = negative $1,006/month. In other words, this is the cash-flow reality of a leveraged SFR purchase in Meridian in 2026 at 7.25% investor rates.
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Total return includes equity and appreciationAnnual principal paydown: ~$3,050 in year 1. Meanwhile, annual appreciation at an assumed 4%: $16,800. Total annual return (equity + appreciation): ~$19,850, offset by the $12,072 annual negative cash flow. Net annual wealth creation: ~$7,780 on $105,000 invested = ~7.4% total return. However, if appreciation runs lower than 4%, that return shrinks quickly — model several appreciation scenarios.
What Makes a Long-Term Rental Work in the Treasure Valley
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Buy below market or at distressed basisSpecifically, a purchase $30,000-$50,000 below market — through off-market deal, motivated seller, or property needing cosmetic work — changes the cash flow math significantly. In fact, every dollar of basis reduction improves cash-on-cash return.
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Higher down payment reduces the mortgage burdenSimilarly, a 35-40% down payment at current rates can produce a break-even or positive cash flow position that 25% down cannot. More capital deployed, but better monthly position.
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West Ada school zone properties command rent premiums and appreciate more predictablyIn addition, the $100-$150/month rent premium in West Ada school zone properties, combined with stronger appreciation and faster absorption at resale, improves total return versus comparable properties outside the zone.
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Multi-unit properties at the same purchase priceFor example, a duplex or triplex at $420K with two rental units producing $1,800/month each generates $3,600/month gross revenue versus $2,150 for a SFR — dramatically better cash flow position at the same purchase price.
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At 7%+ investor rates, leveraged SFR cash flow is negative in most Treasure Valley marketsOverall, this is the 2026 reality. Instead, the investment case is total return — equity accumulation + appreciation — not monthly cash flow. So model total return honestly.
Frequently Asked Questions
Do long-term rentals cash flow in the Treasure Valley in 2026?
+Not typically on leveraged purchases at current rates. For example, a 25%-down SFR in Meridian at 7.25% is cash-flow negative by $400-$800/month at current rents. Instead, the investment thesis is equity accumulation and appreciation — not monthly income. Therefore, investors seeking monthly income should model total return carefully before buying.
What rent can I charge for a 3-bedroom home in Meridian Idaho?
+Market rents for a 3BR/2BA home in Meridian in 2026 range from $2,050 to $2,350 depending on condition, finishes, location within the city, and school district. In particular, West Ada school zone properties command the upper end of this range.
What is a good cap rate for a rental property in Idaho?
+Cap rates on Treasure Valley SFRs in 2026 range from 4.5-6.5%. For example, at 4.5%, the property is priced for appreciation rather than cash flow. In contrast, at 6%+, the property has meaningful income production at current interest rates. However, most MLS-listed Treasure Valley rentals are in the 4.5-5.5% cap rate range.
How do I calculate cash-on-cash return for a Treasure Valley rental?
+Cash-on-cash return = annual pre-tax cash flow divided by total cash invested. If annual cash flow is negative $9,600 and you invested $110,000 (down + closing), your cash-on-cash return is negative 8.7%. That is why total return (including equity and appreciation) is the more complete metric for Treasure Valley rentals at current prices and rates.
What expenses should I budget for a rental property in Idaho?
+Beyond the mortgage: property tax (0.7-1% annually), insurance ($1,500-$2,500 annually), maintenance reserve (10% of gross rent), property management (8-10% of gross rent), HOA if applicable, vacancy allowance (5-8% of gross rent), and periodic capital expenditures (roof, HVAC, water heater over a long hold).
Looking for Investment Properties in the Treasure Valley?
Dennis Fomin — Founder, Fomin & Company. Associate Broker, GRI, RSPS. Active Treasure Valley investor. Free 2026 This Is Boise Area Guide.
- —Investor deal analysis — cap rate, cash-on-cash, and total return at your target price
- —Off-market and below-market investment property sourcing
- —Dennis runs the full financial model before recommending any property
Serving Boise, Meridian, Eagle, Nampa, Caldwell & the Treasure Valley.
Summary
Long-term rental investment in the Treasure Valley in 2026 is a total return strategy — not a cash flow strategy. In fact, at current prices and rates, leveraged SFR purchases are cash-flow negative. Instead, the return comes from principal paydown and appreciation. Meanwhile, investors who understand this and buy at the right basis in strong submarkets with long hold intentions are building wealth. On the other hand, investors who expect monthly income from a standard leveraged purchase are disappointed.
First, model total return. Then buy at the right basis. Finally, hold long enough for appreciation and equity to compound. That is the Treasure Valley investment thesis that works in 2026.
