On the document
deal quality shows up on leases, loan estimates, tax bills, and contractor bids—each with a different date and party.
Pick one document from this month. Map only deal quality on that page before you generalize.
Related lessons
Related lesson and Another angle show two layouts people confuse—read both before you copy a friend’s spreadsheet.
If numbers look correct but the conclusion feels off, check whether you switched properties, years, or account types halfway through the problem.
Check your numbers now
This month’s paper
Circle the insurance line on your actual policy dec page. If it is not in your rent model, add it before you call the deal cash-flow positive.
Compare
| Moment | Verify | |
|---|---|---|
| New listing | Rent comps and tax line | |
| Refi quote | Closing costs vs rate | Tax bracket and account choice |
| Lease renewal | Rent step language | Rebalancing drift |
One document One definition of deal quality
Reconcile
Core lesson
Go deeper: Good Deal vs Bad Deal — if one number still does not feel right, enter it in the calculators above and change one input at a time to see what drives the result.
Use the calculator
FAQ
- Where is the main lesson?
Good Deal vs Bad Deal is the hub with related lessons linked from it.
- Which calculator should I open first?
Use Rent vs buy or Home afford for housing tradeoffs; Loan or Amortization for payments and equity.