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15-year vs 30-year conventional mortgage

A 15-year loan generally has a higher monthly payment but lower total interest and faster equity buildup. A 30-year loan generally has a lower monthly payment and more flexibility, at a higher long-run cost. The right choice depends on cash flow, discipline, and what else the extra cash could do.

Who this may fit

Borrowers deciding between a shorter and longer amortization on a conventional loan.

Key decision factors

  • Monthly payment tolerance
  • Total interest paid over the loan life
  • Opportunity cost of the extra payment
  • Flexibility to make extra principal payments on a 30-year term

Illustrative example

Common mistakes

  • Focusing only on the note rate difference
  • Ignoring the difference in payment flexibility
  • Overestimating discipline to voluntarily make extra payments

Questions to ask a licensed loan officer

  • What are the pricing differences between 15 and 30-year for my file?
  • How would a 30-year with a target extra payment compare to a 15-year?
  • How do the two terms affect my qualification and reserves?

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