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Cash Flow Index Calculator

Measure how efficiently your debt turns into cash flow. A higher Cash Flow Index score usually means more monthly breathing room.

Based on the Cash Flow Index framework used by financial advisors to prioritize debt payoff.

Your debts (add as many as you want)

Credit Card

$5,000.00 / $250.00/mo

Car Loan

$15,000.00 / $400.00/mo

Mortgage

$300,000.00 / $2,000.00/mo

Add a new debt

Cash Flow Index score = balance ÷ monthly payment.

Priority order (lowest Cash Flow Index score first)

1

Credit Card

Often worth refinancing or paying down first.

High priority
20

Cash Flow Index score = 5,000 ÷ 250 = 20

2

Car Loan

Often worth refinancing or paying down first.

High priority
37.5

Cash Flow Index score = 15,000 ÷ 400 = 37.5

3

Mortgage

Often OK to keep while you focus elsewhere.

Low priority
150

Cash Flow Index score = 300,000 ÷ 2,000 = 150

Insight

If your goal is monthly breathing room, paying off Credit Card first tends to free the most cash flow per dollar paid.

Want a full debt efficiency analysis?

X1's Cash Flow Analyzer goes deeper. See your full debt picture and get a prioritized payoff plan.

No credit card required to start

Assumptions and limits

  • Cash Flow Index score = Loan Balance ÷ Monthly Payment
  • Higher scores (>100) usually mean more efficient debt. Lower scores (<50) often signal payoff or restructure priority.
  • Does not account for tax deductibility of interest
  • Assumes fixed monthly payments (not variable-rate projections)
  • For educational comparison only. Consult a financial advisor for a personalized debt strategy.

Decision support

Decide with a cash-flow lens

The Cash Flow Index is a lens for prioritizing payoff decisions. It does not replace interest rate math.

What the Cash Flow Index score measures
Cash Flow Index is a debt payoff ranking metric: balance divided by monthly payment. Lower scores typically free more monthly cash for every dollar you pay off.
Decision checklist
  • Do I need monthly margin more than I need interest minimization?
  • Are rates close enough that payoff order can be cash-flow-driven?
  • If I remove one payment, what would I do with that cash immediately?
  • Would freeing cash allow me to make a better tax or investment decision?
Questions for your advisor
  • Based on my Cash Flow Index scores, which debt should I prioritize paying off this year?
  • How does refinancing my [loan type] change my overall cash flow efficiency?
  • Should I use excess cash to pay down low-score debt or max out retirement contributions?
  • How does my business Cash Flow Index compare to my personal score?