Sensitivity Sliders
Cash on Cash ROI is shaped by both the property and the financing deal you negotiate. Move any slider and watch your return change instantly — before you make an offer.
Try It: Live CoC Sensitivity Demo
Drag any slider and watch Cash on Cash ROI recalculate in real time.
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Why Two Investors Can Have Completely Different CoC ROIs on the Same Property
Same property. Same NOI. Different financing. Wildly different cash on cash returns — and different #1 levers to improve them.
The Rate-Sensitive Buyer
Top Lever:
Rate drop 7.5% → 6.5%: +$1,932/yr CFBT → CoC improves to +3.22%
Rate buydown, seller concessions, or wait for market rates
The Over-Leveraged Buyer
Problem:
Too little down payment — cash flow is deeply negative despite a normal rate
Increase down payment, seller rate buydown, or negotiate the price
The Well-Structured Deal
Top Lever:
Raise rent $200/mo → +$2,280/yr CFBT → CoC improves to 6.69%
Focus on income side — rent improvement is the top lever at this financing
The full app runs this analysis on YOUR property with YOUR financing. It tells you which of the 13 inputs has the most leverage on your specific CoC ROI — ranked and visualized in a live Tornado Chart that updates every time you move a slider.
Why Sensitivity Analysis Matters
Every assumption in your underwriting carries risk — and CoC ROI has two levers that don't even exist in cap rate analysis. Know them before you sign.
Financing Is Negotiable Before Close
Rate buydowns, seller concessions, and down payment adjustments are all on the table before you sign. Knowing the CoC impact of each lets you negotiate intelligently — not just on price, but on the terms that directly move your return.
Stress-Test Before the Rate Lock
What if rates rise 0.5% before you close? What if property taxes are higher than the listing shows? Run those scenarios now — while you can still renegotiate or walk away. After closing, those levers are locked.
The Income and Debt Service Dance
CoC ROI lives in the gap between NOI and annual debt service. The slider demo shows you both sides of that equation — and which one you can actually move before the deal closes.
13 Inputs. One Live CoC ROI.
Every variable that drives your Cash on Cash ROI has its own slider. Nothing is hidden, nothing is assumed behind the scenes.
Income side: the foundation of every CoC analysis
Real-world occupancy gap; every 1% matters
Fixed by county; appeal if over-assessed
Re-shop annually; savings go straight to CFBT
Non-negotiable; factor before buying
Separate metering reduces owner share
Plan for 1–2% of property value annually
Self-managing saves 8–10% of rent/mo
Budget for big-ticket repairs before they happen
Lower price = lower loan = lower debt service
More down = less debt service but more cash at risk
Every 1% ≈ $150/mo on a $240k loan
30yr: lower payment. 15yr: faster equity but tighter CoC
Instant recalculation — no submit button needed
Every slider update triggers a live recalculation. The CoC ROI display, cash flow breakdown, and Tornado Chart all update together. You spend your time thinking about the deal — not waiting for the page to reload.
The Tornado Chart — CoC Impact Ranking
Approximate ±10% impact on CoC ROI at the baseline scenario. Your property will differ — the full app builds this from your actual numbers.
Impact measured as change in CoC ROI (percentage points) from a ±10% shift in each input. Baseline: $300,000 property · $3,000/mo rent · 5% vacancy · 25% down · 6.5% rate · $1,200/mo expenses.
What the Tornado Chart tells you
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Rent is the dominant lever — a 10% rent increase or decrease moves CoC ROI nearly ±2.9 percentage points. This is true whether you're highly leveraged or not.
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Two of your top four levers are financing decisions — interest rate (±1.20pp) and down payment (±1.10pp) don't exist in cap rate analysis. They're yours to negotiate before you close.
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Utilities and HOA fees barely register — at ±0.08% and ±0.04%, obsessing over these while ignoring your interest rate is one of the most common beginner mistakes in rental underwriting.
Unlike cap rate, two of your top four levers are financing decisions you make before you buy. This is why CoC analysis is most powerful at the offer stage — not after closing.
Run Your Own Sensitivity Analysis
13 sliders, instant recalculation, and a live Tornado Chart™. Know exactly which inputs have the most leverage on your Cash on Cash ROI — before you buy.