Period (number of months):
Load value (principle):
Annual interest (format: "value: start-end, value: start-end, ..."):
Additional pay (format: "value: start-end, value: start-end, ..."):
Expected annual return rate:
Tax rate:
Averaged Monthly Pay (monthly total and interest)
Accumulated Total Pay (remaining principle and paid interest)
Expected accumulated return from additional pay:
After-tax effective return rate: