Common MistakesTreasure Valley, Idaho
The mistakes that consistently cost move-up buyers money — and how to avoid each one before it happens.
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Dennis Fomin
Fomin & Company · Associate Broker, GRI, RSPS · 2026
Quick Answer
What are the most common mistakes move-up buyers make in the Treasure Valley?
The five most consistent mistakes: overpricing the current home to generate needed proceeds (which backfires), falling in love with the next home before the current one is under contract (which creates emotional pressure to accept bad terms), underestimating total transaction costs, not modeling the payment increase correctly before committing, and choosing an agent without simultaneous transaction experience. All five are avoidable with preparation.
Dennis Fomin — Founder, Fomin & Company. These are the mistakes I see repeatedly in move-up transactions. Not from carelessness — from the specific pressure the move-up creates. Knowing them in advance is the preparation that prevents them.
Mistake 1 — Overpricing the Current Home
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The source of the mistakeMove-up buyers need a specific amount from their current home sale to fund the next down payment. When that number is higher than the market supports, the temptation is to overprice and hope.
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What it actually costsOverpriced homes generate low traffic, take longer to sell, and ultimately close at lower prices than correctly priced homes. The seller who needed $350K net and overpriced to get there often ends up netting $330K after the price reduction and extended market time.
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The fixPrice from comparable sales. If the market cannot support the proceeds your move-up requires, the move needs to wait or the next home’s price needs to come down.
Mistake 2 — Falling in Love Before the Current Home Is Under Contract
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The sourceMove-up buyers start touring next homes too early — before their current home is listed or before it has an accepted offer. They find the right next home and emotionally commit.
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What it costsEmotional attachment to a specific next home creates pressure to accept bad terms on the current home sale — accepting a low offer because you need to move, or moving too fast on contingencies.
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The fixStart active search for the next home when your current home is listed, not when the idea of moving up first occurs to you. Touring next homes 2 months before you have an accepted offer on your current home is how you end up emotionally overcommitted to a purchase you cannot yet make cleanly.
Mistake 3 — Underestimating Total Transaction Costs
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The sourceMove-up buyers calculate equity and compare to the next down payment. They forget the 7-9% selling cost on the current home and 2-3% closing cost on the new purchase.
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What it costsA move-up buyer who expected to net $200K from the current sale and net $150K for the next down payment discovers at closing disclosure that selling costs consumed $36K of the expected proceeds.
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The fixRun the full transaction cost model before you commit to either side. Selling costs + purchase closing costs should be factored into the equity calculation from day one.
Mistake 4 — Not Modeling the New Payment Before Committing
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The sourceThe excitement of finding the right next home makes buyers move before they have modeled what the monthly payment actually looks like at 2026 rates.
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What it costsA buyer who contracted a $700K home and then discovered the monthly all-in payment was $800/month more than their comfort level has three uncomfortable options: proceed with financial stress, try to renegotiate, or lose their earnest money exiting.
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The fixRun the complete payment model — P&I at current rates, property taxes, insurance, HOA, maintenance reserve — before making any offer. Confirm it is within 28-30% of gross income.
Mistake 5 — Wrong Agent for the Transaction
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The sourceMove-up buyers use the same agent who helped them buy their current home years ago, or use a friend or neighbor who is a real estate agent, without verifying whether they have simultaneous transaction experience.
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What it costsAn agent without simultaneous close experience misses coordination steps. Timeline gaps, delayed lender communication, and misaligned closing dates all have real financial costs.
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The fixAsk specifically: how many simultaneous buy-sell transactions have you managed in the last 12 months? The answer should be a specific number, not a generality.
Frequently Asked Questions
What is the biggest financial mistake move-up buyers make in Idaho?+
Overpricing their current home because they need the proceeds for the next purchase. This strategy consistently backfires — producing lower net proceeds, not higher.
How do I avoid emotional attachment to the next home before I’m ready to buy?+
Do not begin active touring of next homes until your current home is listed. Looking too early creates emotional investment before you have the financial clarity to act cleanly.
What should I do if I fall in love with the next home before my current one sells?+
Make a contingent offer if the timing is close, or pursue bridge financing if you are willing to carry the risk. Do not let emotional attachment push you into overpricing your current home or accepting bad terms on either side.
How do I avoid underestimating transaction costs?+
Run the full model: current home sale gross proceeds minus mortgage payoff minus 8% selling costs minus moving costs = net equity available for the next purchase. Then add 3% closing costs on the new purchase. Both numbers matter.
Is it normal to feel stressed during a move-up transaction?+
Yes. The move-up is genuinely more complex than a first purchase. The preparation that reduces stress is understanding the timeline, the financial model, and the potential failure points before you are inside the transaction.
Want to Avoid These Mistakes in Your Move-Up?
Dennis Fomin — Founder, Fomin & Company. Associate Broker, GRI, RSPS. Free 2026 This Is Boise Area Guide.
- —Pre-move-up consultation — financial model, timeline planning, and mistake prevention
- —Pricing discipline on both sides — current home and next home
- —Agent qualification criteria so you know what to look for before you hire
- —Dennis has seen all five of these mistakes in real transactions — and how to prevent them
Serving Boise, Meridian, Eagle, Nampa, Caldwell & the Treasure Valley.
Summary
Every mistake on this list is avoidable with preparation. Price your current home from market data, not from what you need. Start your next home search when your current one is listed. Run the full transaction cost model before you commit. Model the new payment before you make any offer. And hire an agent who has actually coordinated simultaneous closes.
The move-up buyer who knows the failure modes before the transaction starts is the one who finishes it without discovering them under pressure.
