Full amortization schedule with extra payments comparison
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This mortgage amortization calculator compares standard repayment with an accelerated strategy using extra monthly and yearly payments. See exactly how much interest you save and how many years you cut off your mortgage with side-by-side yearly comparisons. This calculator runs two amortization simulations side by side: one with standard payments and one with accelerated payments including extra monthly and yearly contributions. The yearly comparison table shows exactly how much faster you can pay off your mortgage and how much interest you save.
The calculator runs two amortization simulations in parallel: one standard and one with additional payments, then computes the interest and time savings.
Adding $100 per month to a $300,000 mortgage at 6.5% can save over $70,000 in interest and cut the loan term by roughly 7-8 years, depending on your rate.
Extra monthly payments provide consistent principal reduction throughout the year. An extra yearly payment (like a tax refund) can provide a larger one-time boost. Both strategies are effective.
Adding $200 per month to a $300,000 mortgage at 6.5% can save over $100,000 in interest and reduce your 30-year mortgage to approximately 22 years. The exact savings depend on your rate and balance.
Both strategies are effective. Extra monthly payments provide consistent principal reduction. A yearly lump sum gives a larger one-time boost. Combining both maximizes your savings.
Missing an extra payment simply means you make the standard payment for that month. There is no penalty for occasionally skipping extra payments, unlike your required minimum payment.
This depends on your mortgage rate versus expected investment returns. With current rates of 6-7%, paying down mortgage debt provides a guaranteed return that may exceed conservative investment returns.