Amortization Schedule for a Typical Delaware Home Loan
The amortization formula for a fixed-rate loan is:
M = P × [r(1+r)^n] / [(1+r)^n − 1]
M = monthly payment | P = principal | r = monthly rate (annual ÷ 12) | n = total payments
For Delaware's median home scenario — $316,800 loan at 6.51%:
- Monthly rate r = 6.51% ÷ 12 = 0.5425%
- Monthly payment M = $2,004
- Month 1 interest: $1,719 | Month 1 principal: $285
- After 5 years (60 payments): balance still $296,627
- After 15 years (180 payments): balance still $230,106 (73% of original)
- Total interest over 30 years: $404,640
The key insight: after paying $2,004/month for 15 years — halfway through the loan — you still owe $230,106. This is because early payments are almost entirely interest. Paying just $200 extra per month would save approximately $104,320 in interest and shorten the loan by roughly 6.7 years.