In: Finance
In purchasing a house that is worth $175,000, you need to obtain a mortgage. Suppose you choose a 30year fixed rate mortgage with an interest rate/year of 9.74%. What is the annual payment required? How much of each year's payment goes to paying interest and how much to reducing the principal balance for the first 15 years?
| Annual rate(M)= | yearly rate/1= | 9.74% | Annual payment= | 18162.44 | |
| Year | Beginning balance (A) | Annual payment | Interest = M*A | Principal paid | Ending balance | 
| 1 | 175000.00 | 18162.44 | 17045.00 | 1117.44 | 173882.56 | 
| 2 | 173882.56 | 18162.44 | 16936.16 | 1226.28 | 172656.27 | 
| 3 | 172656.27 | 18162.44 | 16816.72 | 1345.72 | 171310.55 | 
| 4 | 171310.55 | 18162.44 | 16685.65 | 1476.80 | 169833.76 | 
| 5 | 169833.76 | 18162.44 | 16541.81 | 1620.64 | 168213.12 | 
| 6 | 168213.12 | 18162.44 | 16383.96 | 1778.49 | 166434.63 | 
| 7 | 166434.63 | 18162.44 | 16210.73 | 1951.71 | 164482.92 | 
| 8 | 164482.92 | 18162.44 | 16020.64 | 2141.81 | 162341.12 | 
| 9 | 162341.12 | 18162.44 | 15812.02 | 2350.42 | 159990.70 | 
| 10 | 159990.70 | 18162.44 | 15583.09 | 2579.35 | 157411.35 | 
| 11 | 157411.35 | 18162.44 | 15331.87 | 2830.58 | 154580.77 | 
| 12 | 154580.77 | 18162.44 | 15056.17 | 3106.28 | 151474.49 | 
| 13 | 151474.49 | 18162.44 | 14753.62 | 3408.83 | 148065.67 | 
| 14 | 148065.67 | 18162.44 | 14421.60 | 3740.85 | 144324.82 | 
| 15 | 144324.82 | 18162.44 | 14057.24 | 4105.21 | 140219.61 | 
| 16 | 140219.61 | 18162.44 | 13657.39 | 4505.05 | 135714.56 | 
| 17 | 135714.56 | 18162.44 | 13218.60 | 4943.85 | 130770.71 | 
| 18 | 130770.71 | 18162.44 | 12737.07 | 5425.38 | 125345.34 | 
| 19 | 125345.34 | 18162.44 | 12208.64 | 5953.81 | 119391.53 | 
| 20 | 119391.53 | 18162.44 | 11628.73 | 6533.71 | 112857.82 | 
| 21 | 112857.82 | 18162.44 | 10992.35 | 7170.09 | 105687.73 | 
| 22 | 105687.73 | 18162.44 | 10293.98 | 7868.46 | 97819.27 | 
| 23 | 97819.27 | 18162.44 | 9527.60 | 8634.85 | 89184.42 | 
| 24 | 89184.42 | 18162.44 | 8686.56 | 9475.88 | 79708.54 | 
| 25 | 79708.54 | 18162.44 | 7763.61 | 10398.83 | 69309.71 | 
| 26 | 69309.71 | 18162.44 | 6750.77 | 11411.68 | 57898.03 | 
| 27 | 57898.03 | 18162.44 | 5639.27 | 12523.18 | 45374.86 | 
| 28 | 45374.86 | 18162.44 | 4419.51 | 13742.93 | 31631.93 | 
| 29 | 31631.93 | 18162.44 | 3080.95 | 15081.49 | 16550.43 | 
| 30 | 16550.43 | 18162.44 | 1612.01 | 16550.43 | 0.00 | 
| Where | 
| Interest paid = Beginning balance * Annual interest rate | 
| Principal = Annual payment – interest paid | 
| Ending balance = beginning balance – principal paid | 
| Beginning balance = previous Year ending balance |