The Universal Calculation Engine
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The Universal Calculation Engine

Scenario Thinking (Real Estate)

Run a base case and a downside case; if the downside fails your budget, shrink the buy or add reserves.

Start this lessonWhat a downside housing case should include

Why three scenarios

Base: reasonable rent growth and rates. Downside: job loss window, higher expenses, flat prices. Upside: steady appreciation. Write numbers for each; if downside breaks you, shrink the buy or build reserves.

What to move

  • Interest rate +1–2% on renewal or ARM adjustment.
  • Rent −10% and vacancy +1 month.
  • Appreciation 0% for five years.

Tool-led stress

Mistakes

  • Single-point planning with today’s rate forever.
  • Ignoring liquidity—equity is not dinner money without a loan or sale.

Use the calculator

FAQ

How conservative?

Conservative enough that a job change and one big repair still leave six months of reserves.