SIPOMY

Should I Pay Off My House?

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Data-Driven Financial Planning Tool

Pay Off Your Mortgage or Invest?

Stop guessing. Get a personalized answer based on your mortgage, your investment returns, and your financial goals.

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21
Scenarios Analyzed
<20ms
Calculation Speed
30yr
Projection Timeline
100%
Free to Use

The Question Every Homeowner Faces

You have extra money each month. Should you pay down your mortgage or invest it? The answer depends on many factors, and generic advice doesn't cut it.

Generic Advice Fails

"Just invest in the market" ignores your 6.5% mortgage interest. "Always pay off debt first" ignores potential 10% investment returns. Your situation is unique.

Opportunity Cost Is Real

Choosing the wrong strategy could cost you hundreds of thousands in lost wealth by retirement. The math matters, and it's different for everyone.

Personalization Required

Your interest rate, tax bracket, expected returns, and time horizon all change the optimal answer. One-size-fits-all doesn't work here.

How SIPOMY Works

Three simple steps to get a personalized, data-driven answer

1

Enter Loan Details

Tell us about your mortgage: balance, interest rate, monthly payment, and when you started.

  • Current mortgage balance
  • Interest rate & term
  • Monthly P&I payment
2

Set Investment Profile

How much can you pay extra each month? What returns do you expect from investments?

  • Monthly extra payment
  • Expected investment return
  • Tax bracket & retirement age
3

See Your Results

Instantly see 21 scenarios from "all mortgage" to "all investment" and everything in between.

  • Interactive wealth projections
  • 30-year timeline charts
  • Optimal allocation finder

Why SIPOMY?

Powerful features designed to give you confidence in your decision

Instant Calculations

21 scenarios calculated in under 20 milliseconds. No waiting, just answers.

Interactive Visualizations

Beautiful charts that update in real-time as you explore different strategies.

Privacy First

All calculations run in your browser. No data sent to servers. Your financial info stays private.

Find Your Optimal Split

Automatically identifies the allocation that maximizes your net worth at retirement.

Compare Scenarios

See side-by-side comparisons of pure mortgage payoff, pure investing, and balanced strategies.

Year-by-Year Breakdown

Complete 30-year projection showing mortgage balance, investments, and net worth each year.

Ready to Make an Informed Decision?

Join thousands of homeowners who've discovered their optimal mortgage payoff strategy

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