Skip to main content

Extra Mortgage Payment Calculator

See how extra payments can save you thousands in interest and years off your mortgage. Enter your loan details and choose from monthly, yearly, or one-time lump sum strategies to find the best approach for your budget. Every calculation generates a unique, shareable URL.

Extra Payment Calculator Inputs

Loan Details

Original loan principal

Annual interest rate (e.g. 6.5)

Length of the loan in years

Extra Payments

Added to principal every month

One extra payment per year (applied every 12th month)

A single extra payment applied to principal

Month number for the one-time payment (1–360)

Explore HELOC Options

Results update on every submission. Bookmark the URL to save your calculation.

Your Savings

Total Interest Saved

Interest Saved
$101,283

Loan paid off 7 years, 3 months sooner

Original Payoff

March 2056

360 payments

Accelerated Payoff

December 2048

273 payments

Comparison: Original vs. Extra Payments

Side-by-side comparison of your mortgage with and without extra payments
Metric Original With Extra Payments Difference
Monthly Payment $1,769.79 $1,969.79 +$200.00
Total Interest $357,124.40 $255,841.58 -$101,282.82
Total Amount Paid $637,124.40 $535,841.58 -$101,282.82
Payoff Date March 2056 December 2048 7 years, 3 months sooner
Number of Payments 360 273 87 fewer
Interest Saved $101,282.82

Remaining Balance Over Time

Amortization Schedule (With Extra Payments)

Month-by-month amortization with extra payments for a 30-year mortgage. Paid off in 273 months instead of 360.
Month Payment Principal Interest Extra Balance
Year 1
1 $1,969.79 $453.12 $1,516.67 $200.00 $279,546.88
2 $1,969.79 $455.58 $1,514.21 $200.00 $279,091.30
3 $1,969.79 $458.05 $1,511.74 $200.00 $278,633.25
4 $1,969.79 $460.53 $1,509.26 $200.00 $278,172.72
5 $1,969.79 $463.02 $1,506.77 $200.00 $277,709.70
6 $1,969.79 $465.53 $1,504.26 $200.00 $277,244.17
7 $1,969.79 $468.05 $1,501.74 $200.00 $276,776.12
8 $1,969.79 $470.59 $1,499.20 $200.00 $276,305.53
9 $1,969.79 $473.14 $1,496.65 $200.00 $275,832.39
10 $1,969.79 $475.70 $1,494.09 $200.00 $275,356.69
11 $1,969.79 $478.27 $1,491.52 $200.00 $274,878.42
12 $1,969.79 $480.87 $1,488.92 $200.00 $274,397.55
Year 2
13 $1,969.79 $483.47 $1,486.32 $200.00 $273,914.08
14 $1,969.79 $486.09 $1,483.70 $200.00 $273,427.99
15 $1,969.79 $488.72 $1,481.07 $200.00 $272,939.27
16 $1,969.79 $491.37 $1,478.42 $200.00 $272,447.90
17 $1,969.79 $494.03 $1,475.76 $200.00 $271,953.87
18 $1,969.79 $496.71 $1,473.08 $200.00 $271,457.16
19 $1,969.79 $499.40 $1,470.39 $200.00 $270,957.76
20 $1,969.79 $502.10 $1,467.69 $200.00 $270,455.66
21 $1,969.79 $504.82 $1,464.97 $200.00 $269,950.84
22 $1,969.79 $507.56 $1,462.23 $200.00 $269,443.28
23 $1,969.79 $510.31 $1,459.48 $200.00 $268,932.97
24 $1,969.79 $513.07 $1,456.72 $200.00 $268,419.90
Year 3
25 $1,969.79 $515.85 $1,453.94 $200.00 $267,904.05
26 $1,969.79 $518.64 $1,451.15 $200.00 $267,385.41
27 $1,969.79 $521.45 $1,448.34 $200.00 $266,863.96
28 $1,969.79 $524.28 $1,445.51 $200.00 $266,339.68
29 $1,969.79 $527.12 $1,442.67 $200.00 $265,812.56
30 $1,969.79 $529.97 $1,439.82 $200.00 $265,282.59
31 $1,969.79 $532.84 $1,436.95 $200.00 $264,749.75
32 $1,969.79 $535.73 $1,434.06 $200.00 $264,214.02
33 $1,969.79 $538.63 $1,431.16 $200.00 $263,675.39
34 $1,969.79 $541.55 $1,428.24 $200.00 $263,133.84
35 $1,969.79 $544.48 $1,425.31 $200.00 $262,589.36
36 $1,969.79 $547.43 $1,422.36 $200.00 $262,041.93
Year 4
37 $1,969.79 $550.40 $1,419.39 $200.00 $261,491.53
38 $1,969.79 $553.38 $1,416.41 $200.00 $260,938.15
39 $1,969.79 $556.38 $1,413.41 $200.00 $260,381.77
40 $1,969.79 $559.39 $1,410.40 $200.00 $259,822.38
41 $1,969.79 $562.42 $1,407.37 $200.00 $259,259.96
42 $1,969.79 $565.47 $1,404.32 $200.00 $258,694.49
43 $1,969.79 $568.53 $1,401.26 $200.00 $258,125.96
44 $1,969.79 $571.61 $1,398.18 $200.00 $257,554.35
45 $1,969.79 $574.70 $1,395.09 $200.00 $256,979.65
46 $1,969.79 $577.82 $1,391.97 $200.00 $256,401.83
47 $1,969.79 $580.95 $1,388.84 $200.00 $255,820.88
48 $1,969.79 $584.09 $1,385.70 $200.00 $255,236.79
Year 5
49 $1,969.79 $587.26 $1,382.53 $200.00 $254,649.53
50 $1,969.79 $590.44 $1,379.35 $200.00 $254,059.09
51 $1,969.79 $593.64 $1,376.15 $200.00 $253,465.45
52 $1,969.79 $596.85 $1,372.94 $200.00 $252,868.60
53 $1,969.79 $600.09 $1,369.70 $200.00 $252,268.51
54 $1,969.79 $603.34 $1,366.45 $200.00 $251,665.17
55 $1,969.79 $606.60 $1,363.19 $200.00 $251,058.57
56 $1,969.79 $609.89 $1,359.90 $200.00 $250,448.68
57 $1,969.79 $613.19 $1,356.60 $200.00 $249,835.49
58 $1,969.79 $616.51 $1,353.28 $200.00 $249,218.98
59 $1,969.79 $619.85 $1,349.94 $200.00 $248,599.13
60 $1,969.79 $623.21 $1,346.58 $200.00 $247,975.92
Year 6
61 $1,969.79 $626.59 $1,343.20 $200.00 $247,349.33
62 $1,969.79 $629.98 $1,339.81 $200.00 $246,719.35
63 $1,969.79 $633.39 $1,336.40 $200.00 $246,085.96
64 $1,969.79 $636.82 $1,332.97 $200.00 $245,449.14
65 $1,969.79 $640.27 $1,329.52 $200.00 $244,808.87
66 $1,969.79 $643.74 $1,326.05 $200.00 $244,165.13
67 $1,969.79 $647.23 $1,322.56 $200.00 $243,517.90
68 $1,969.79 $650.73 $1,319.06 $200.00 $242,867.17
69 $1,969.79 $654.26 $1,315.53 $200.00 $242,212.91
70 $1,969.79 $657.80 $1,311.99 $200.00 $241,555.11
71 $1,969.79 $661.37 $1,308.42 $200.00 $240,893.74
72 $1,969.79 $664.95 $1,304.84 $200.00 $240,228.79
Year 7
73 $1,969.79 $668.55 $1,301.24 $200.00 $239,560.24
74 $1,969.79 $672.17 $1,297.62 $200.00 $238,888.07
75 $1,969.79 $675.81 $1,293.98 $200.00 $238,212.26
76 $1,969.79 $679.47 $1,290.32 $200.00 $237,532.79
77 $1,969.79 $683.15 $1,286.64 $200.00 $236,849.64
78 $1,969.79 $686.85 $1,282.94 $200.00 $236,162.79
79 $1,969.79 $690.57 $1,279.22 $200.00 $235,472.22
80 $1,969.79 $694.32 $1,275.47 $200.00 $234,777.90
81 $1,969.79 $698.08 $1,271.71 $200.00 $234,079.82
82 $1,969.79 $701.86 $1,267.93 $200.00 $233,377.96
83 $1,969.79 $705.66 $1,264.13 $200.00 $232,672.30
84 $1,969.79 $709.48 $1,260.31 $200.00 $231,962.82
Year 8
85 $1,969.79 $713.32 $1,256.47 $200.00 $231,249.50
86 $1,969.79 $717.19 $1,252.60 $200.00 $230,532.31
87 $1,969.79 $721.07 $1,248.72 $200.00 $229,811.24
88 $1,969.79 $724.98 $1,244.81 $200.00 $229,086.26
89 $1,969.79 $728.91 $1,240.88 $200.00 $228,357.35
90 $1,969.79 $732.85 $1,236.94 $200.00 $227,624.50
91 $1,969.79 $736.82 $1,232.97 $200.00 $226,887.68
92 $1,969.79 $740.82 $1,228.97 $200.00 $226,146.86
93 $1,969.79 $744.83 $1,224.96 $200.00 $225,402.03
94 $1,969.79 $748.86 $1,220.93 $200.00 $224,653.17
95 $1,969.79 $752.92 $1,216.87 $200.00 $223,900.25
96 $1,969.79 $757.00 $1,212.79 $200.00 $223,143.25
Year 9
97 $1,969.79 $761.10 $1,208.69 $200.00 $222,382.15
98 $1,969.79 $765.22 $1,204.57 $200.00 $221,616.93
99 $1,969.79 $769.36 $1,200.43 $200.00 $220,847.57
100 $1,969.79 $773.53 $1,196.26 $200.00 $220,074.04
101 $1,969.79 $777.72 $1,192.07 $200.00 $219,296.32
102 $1,969.79 $781.93 $1,187.86 $200.00 $218,514.39
103 $1,969.79 $786.17 $1,183.62 $200.00 $217,728.22
104 $1,969.79 $790.43 $1,179.36 $200.00 $216,937.79
105 $1,969.79 $794.71 $1,175.08 $200.00 $216,143.08
106 $1,969.79 $799.01 $1,170.78 $200.00 $215,344.07
107 $1,969.79 $803.34 $1,166.45 $200.00 $214,540.73
108 $1,969.79 $807.69 $1,162.10 $200.00 $213,733.04
Year 10
109 $1,969.79 $812.07 $1,157.72 $200.00 $212,920.97
110 $1,969.79 $816.47 $1,153.32 $200.00 $212,104.50
111 $1,969.79 $820.89 $1,148.90 $200.00 $211,283.61
112 $1,969.79 $825.34 $1,144.45 $200.00 $210,458.27
113 $1,969.79 $829.81 $1,139.98 $200.00 $209,628.46
114 $1,969.79 $834.30 $1,135.49 $200.00 $208,794.16
115 $1,969.79 $838.82 $1,130.97 $200.00 $207,955.34
116 $1,969.79 $843.37 $1,126.42 $200.00 $207,111.97
117 $1,969.79 $847.93 $1,121.86 $200.00 $206,264.04
118 $1,969.79 $852.53 $1,117.26 $200.00 $205,411.51
119 $1,969.79 $857.14 $1,112.65 $200.00 $204,554.37
120 $1,969.79 $861.79 $1,108.00 $200.00 $203,692.58
Year 11
121 $1,969.79 $866.46 $1,103.33 $200.00 $202,826.12
122 $1,969.79 $871.15 $1,098.64 $200.00 $201,954.97
123 $1,969.79 $875.87 $1,093.92 $200.00 $201,079.10
124 $1,969.79 $880.61 $1,089.18 $200.00 $200,198.49
125 $1,969.79 $885.38 $1,084.41 $200.00 $199,313.11
126 $1,969.79 $890.18 $1,079.61 $200.00 $198,422.93
127 $1,969.79 $895.00 $1,074.79 $200.00 $197,527.93
128 $1,969.79 $899.85 $1,069.94 $200.00 $196,628.08
129 $1,969.79 $904.72 $1,065.07 $200.00 $195,723.36
130 $1,969.79 $909.62 $1,060.17 $200.00 $194,813.74
131 $1,969.79 $914.55 $1,055.24 $200.00 $193,899.19
132 $1,969.79 $919.50 $1,050.29 $200.00 $192,979.69
Year 12
133 $1,969.79 $924.48 $1,045.31 $200.00 $192,055.21
134 $1,969.79 $929.49 $1,040.30 $200.00 $191,125.72
135 $1,969.79 $934.53 $1,035.26 $200.00 $190,191.19
136 $1,969.79 $939.59 $1,030.20 $200.00 $189,251.60
137 $1,969.79 $944.68 $1,025.11 $200.00 $188,306.92
138 $1,969.79 $949.79 $1,020.00 $200.00 $187,357.13
139 $1,969.79 $954.94 $1,014.85 $200.00 $186,402.19
140 $1,969.79 $960.11 $1,009.68 $200.00 $185,442.08
141 $1,969.79 $965.31 $1,004.48 $200.00 $184,476.77
142 $1,969.79 $970.54 $999.25 $200.00 $183,506.23
143 $1,969.79 $975.80 $993.99 $200.00 $182,530.43
144 $1,969.79 $981.08 $988.71 $200.00 $181,549.35
Year 13
145 $1,969.79 $986.40 $983.39 $200.00 $180,562.95
146 $1,969.79 $991.74 $978.05 $200.00 $179,571.21
147 $1,969.79 $997.11 $972.68 $200.00 $178,574.10
148 $1,969.79 $1,002.51 $967.28 $200.00 $177,571.59
149 $1,969.79 $1,007.94 $961.85 $200.00 $176,563.65
150 $1,969.79 $1,013.40 $956.39 $200.00 $175,550.25
151 $1,969.79 $1,018.89 $950.90 $200.00 $174,531.36
152 $1,969.79 $1,024.41 $945.38 $200.00 $173,506.95
153 $1,969.79 $1,029.96 $939.83 $200.00 $172,476.99
154 $1,969.79 $1,035.54 $934.25 $200.00 $171,441.45
155 $1,969.79 $1,041.15 $928.64 $200.00 $170,400.30
156 $1,969.79 $1,046.79 $923.00 $200.00 $169,353.51
Year 14
157 $1,969.79 $1,052.46 $917.33 $200.00 $168,301.05
158 $1,969.79 $1,058.16 $911.63 $200.00 $167,242.89
159 $1,969.79 $1,063.89 $905.90 $200.00 $166,179.00
160 $1,969.79 $1,069.65 $900.14 $200.00 $165,109.35
161 $1,969.79 $1,075.45 $894.34 $200.00 $164,033.90
162 $1,969.79 $1,081.27 $888.52 $200.00 $162,952.63
163 $1,969.79 $1,087.13 $882.66 $200.00 $161,865.50
164 $1,969.79 $1,093.02 $876.77 $200.00 $160,772.48
165 $1,969.79 $1,098.94 $870.85 $200.00 $159,673.54
166 $1,969.79 $1,104.89 $864.90 $200.00 $158,568.65
167 $1,969.79 $1,110.88 $858.91 $200.00 $157,457.77
168 $1,969.79 $1,116.89 $852.90 $200.00 $156,340.88
Year 15
169 $1,969.79 $1,122.94 $846.85 $200.00 $155,217.94
170 $1,969.79 $1,129.03 $840.76 $200.00 $154,088.91
171 $1,969.79 $1,135.14 $834.65 $200.00 $152,953.77
172 $1,969.79 $1,141.29 $828.50 $200.00 $151,812.48
173 $1,969.79 $1,147.47 $822.32 $200.00 $150,665.01
174 $1,969.79 $1,153.69 $816.10 $200.00 $149,511.32
175 $1,969.79 $1,159.94 $809.85 $200.00 $148,351.38
176 $1,969.79 $1,166.22 $803.57 $200.00 $147,185.16
177 $1,969.79 $1,172.54 $797.25 $200.00 $146,012.62
178 $1,969.79 $1,178.89 $790.90 $200.00 $144,833.73
179 $1,969.79 $1,185.27 $784.52 $200.00 $143,648.46
180 $1,969.79 $1,191.69 $778.10 $200.00 $142,456.77
Year 16
181 $1,969.79 $1,198.15 $771.64 $200.00 $141,258.62
182 $1,969.79 $1,204.64 $765.15 $200.00 $140,053.98
183 $1,969.79 $1,211.16 $758.63 $200.00 $138,842.82
184 $1,969.79 $1,217.72 $752.07 $200.00 $137,625.10
185 $1,969.79 $1,224.32 $745.47 $200.00 $136,400.78
186 $1,969.79 $1,230.95 $738.84 $200.00 $135,169.83
187 $1,969.79 $1,237.62 $732.17 $200.00 $133,932.21
188 $1,969.79 $1,244.32 $725.47 $200.00 $132,687.89
189 $1,969.79 $1,251.06 $718.73 $200.00 $131,436.83
190 $1,969.79 $1,257.84 $711.95 $200.00 $130,178.99
191 $1,969.79 $1,264.65 $705.14 $200.00 $128,914.34
192 $1,969.79 $1,271.50 $698.29 $200.00 $127,642.84
Year 17
193 $1,969.79 $1,278.39 $691.40 $200.00 $126,364.45
194 $1,969.79 $1,285.32 $684.47 $200.00 $125,079.13
195 $1,969.79 $1,292.28 $677.51 $200.00 $123,786.85
196 $1,969.79 $1,299.28 $670.51 $200.00 $122,487.57
197 $1,969.79 $1,306.32 $663.47 $200.00 $121,181.25
198 $1,969.79 $1,313.39 $656.40 $200.00 $119,867.86
199 $1,969.79 $1,320.51 $649.28 $200.00 $118,547.35
200 $1,969.79 $1,327.66 $642.13 $200.00 $117,219.69
201 $1,969.79 $1,334.85 $634.94 $200.00 $115,884.84
202 $1,969.79 $1,342.08 $627.71 $200.00 $114,542.76
203 $1,969.79 $1,349.35 $620.44 $200.00 $113,193.41
204 $1,969.79 $1,356.66 $613.13 $200.00 $111,836.75
Year 18
205 $1,969.79 $1,364.01 $605.78 $200.00 $110,472.74
206 $1,969.79 $1,371.40 $598.39 $200.00 $109,101.34
207 $1,969.79 $1,378.82 $590.97 $200.00 $107,722.52
208 $1,969.79 $1,386.29 $583.50 $200.00 $106,336.23
209 $1,969.79 $1,393.80 $575.99 $200.00 $104,942.43
210 $1,969.79 $1,401.35 $568.44 $200.00 $103,541.08
211 $1,969.79 $1,408.94 $560.85 $200.00 $102,132.14
212 $1,969.79 $1,416.57 $553.22 $200.00 $100,715.57
213 $1,969.79 $1,424.25 $545.54 $200.00 $99,291.32
214 $1,969.79 $1,431.96 $537.83 $200.00 $97,859.36
215 $1,969.79 $1,439.72 $530.07 $200.00 $96,419.64
216 $1,969.79 $1,447.52 $522.27 $200.00 $94,972.12
Year 19
217 $1,969.79 $1,455.36 $514.43 $200.00 $93,516.76
218 $1,969.79 $1,463.24 $506.55 $200.00 $92,053.52
219 $1,969.79 $1,471.17 $498.62 $200.00 $90,582.35
220 $1,969.79 $1,479.14 $490.65 $200.00 $89,103.21
221 $1,969.79 $1,487.15 $482.64 $200.00 $87,616.06
222 $1,969.79 $1,495.20 $474.59 $200.00 $86,120.86
223 $1,969.79 $1,503.30 $466.49 $200.00 $84,617.56
224 $1,969.79 $1,511.44 $458.35 $200.00 $83,106.12
225 $1,969.79 $1,519.63 $450.16 $200.00 $81,586.49
226 $1,969.79 $1,527.86 $441.93 $200.00 $80,058.63
227 $1,969.79 $1,536.14 $433.65 $200.00 $78,522.49
228 $1,969.79 $1,544.46 $425.33 $200.00 $76,978.03
Year 20
229 $1,969.79 $1,552.83 $416.96 $200.00 $75,425.20
230 $1,969.79 $1,561.24 $408.55 $200.00 $73,863.96
231 $1,969.79 $1,569.69 $400.10 $200.00 $72,294.27
232 $1,969.79 $1,578.20 $391.59 $200.00 $70,716.07
233 $1,969.79 $1,586.74 $383.05 $200.00 $69,129.33
234 $1,969.79 $1,595.34 $374.45 $200.00 $67,533.99
235 $1,969.79 $1,603.98 $365.81 $200.00 $65,930.01
236 $1,969.79 $1,612.67 $357.12 $200.00 $64,317.34
237 $1,969.79 $1,621.40 $348.39 $200.00 $62,695.94
238 $1,969.79 $1,630.19 $339.60 $200.00 $61,065.75
239 $1,969.79 $1,639.02 $330.77 $200.00 $59,426.73
240 $1,969.79 $1,647.90 $321.89 $200.00 $57,778.83
Year 21
241 $1,969.79 $1,656.82 $312.97 $200.00 $56,122.01
242 $1,969.79 $1,665.80 $303.99 $200.00 $54,456.21
243 $1,969.79 $1,674.82 $294.97 $200.00 $52,781.39
244 $1,969.79 $1,683.89 $285.90 $200.00 $51,097.50
245 $1,969.79 $1,693.01 $276.78 $200.00 $49,404.49
246 $1,969.79 $1,702.18 $267.61 $200.00 $47,702.31
247 $1,969.79 $1,711.40 $258.39 $200.00 $45,990.91
248 $1,969.79 $1,720.67 $249.12 $200.00 $44,270.24
249 $1,969.79 $1,729.99 $239.80 $200.00 $42,540.25
250 $1,969.79 $1,739.36 $230.43 $200.00 $40,800.89
251 $1,969.79 $1,748.79 $221.00 $200.00 $39,052.10
252 $1,969.79 $1,758.26 $211.53 $200.00 $37,293.84
Year 22
253 $1,969.79 $1,767.78 $202.01 $200.00 $35,526.06
254 $1,969.79 $1,777.36 $192.43 $200.00 $33,748.70
255 $1,969.79 $1,786.98 $182.81 $200.00 $31,961.72
256 $1,969.79 $1,796.66 $173.13 $200.00 $30,165.06
257 $1,969.79 $1,806.40 $163.39 $200.00 $28,358.66
258 $1,969.79 $1,816.18 $153.61 $200.00 $26,542.48
259 $1,969.79 $1,826.02 $143.77 $200.00 $24,716.46
260 $1,969.79 $1,835.91 $133.88 $200.00 $22,880.55
261 $1,969.79 $1,845.85 $123.94 $200.00 $21,034.70
262 $1,969.79 $1,855.85 $113.94 $200.00 $19,178.85
263 $1,969.79 $1,865.90 $103.89 $200.00 $17,312.95
264 $1,969.79 $1,876.01 $93.78 $200.00 $15,436.94
Year 23
265 $1,969.79 $1,886.17 $83.62 $200.00 $13,550.77
266 $1,969.79 $1,896.39 $73.40 $200.00 $11,654.38
267 $1,969.79 $1,906.66 $63.13 $200.00 $9,747.72
268 $1,969.79 $1,916.99 $52.80 $200.00 $7,830.73
269 $1,969.79 $1,927.37 $42.42 $200.00 $5,903.36
270 $1,969.79 $1,937.81 $31.98 $200.00 $3,965.55
271 $1,969.79 $1,948.31 $21.48 $200.00 $2,017.24
272 $1,969.79 $1,958.86 $10.93 $200.00 $58.38
273 $58.70 $58.38 $0.32 $0.00

Extra payments are applied directly to principal. Figures shown are for principal and interest only.

How Extra Mortgage Payments Save You Money

Every dollar of extra payment goes directly toward reducing your loan principal. With a lower balance, less interest accrues in the following months, creating a compounding effect that accelerates your payoff. On a standard 30-year mortgage, you will pay more in interest than the original loan amount. Even modest extra payments can save tens of thousands of dollars and shave years off your loan.

The key insight is that mortgage interest is calculated on the remaining balance each month. When you reduce that balance with an extra payment, every subsequent month charges less interest. The savings compound over the remaining life of the loan, making early extra payments especially powerful.

Types of Extra Payments

Extra Monthly Payment

Adding a fixed amount to your monthly payment is the most consistent strategy. Even $100 to $200 per month can save thousands in interest. This approach works well if you have steady disposable income and want a set-it-and-forget-it method.

Extra Yearly Payment

Making one extra payment per year — often from a tax refund, work bonus, or holiday savings — is a popular strategy. One extra monthly-equivalent payment per year on a 30-year mortgage can cut approximately 4 to 5 years off the term.

One-Time Lump Sum

A large one-time payment from an inheritance, home sale proceeds, or other windfall can dramatically reduce your balance. The earlier in the loan term you apply it, the more interest you will save over the remaining years.

Example: $200/Month Extra on a $280,000 Mortgage

Consider a $280,000 mortgage at 6.5% for 30 years. The standard monthly P&I payment is $1,769.79, and over the full term you would pay $357,124.40 in total interest.

By adding just $200 per month in extra principal payments, you would:

  • Save $101,282.82 in total interest
  • Pay off your mortgage 7 years, 3 months earlier
  • Finish in December 2048 instead of March 2056

That $200/month extra costs $54,600 in total extra payments but saves you $101,282.82 — a return far greater than the extra investment.

The Power of Early Extra Payments

Mortgage loans are front-loaded with interest. In the early years of a 30-year mortgage, roughly 60% to 80% of each payment goes toward interest, not principal. This is why extra payments made in the first few years of your loan have a dramatically larger impact than the same payments made later.

For example, a $10,000 lump sum applied in month 1 of a $280,000 mortgage at 6.5% saves far more interest than the same $10,000 applied in year 20. The earlier payment reduces the balance for a longer period, so the interest savings compound over many more months.

This front-loading effect is the reason financial advisors often recommend making extra payments as early as possible if you plan to stay in your home long-term. Use the calculator above to experiment with different lump sum timing to see the impact firsthand.

Should You Make Extra Payments or Invest?

This is one of the most common questions in personal finance. The answer depends on your individual situation, but here are the key factors to consider:

Extra Payments Make Sense When:

  • Your mortgage rate is above 5-6%
  • You value guaranteed returns over market risk
  • You want to be debt-free sooner
  • You have already maxed tax-advantaged accounts (401k, IRA)
  • Your emergency fund is fully funded

Investing May Be Better When:

  • Your mortgage rate is below 4%
  • You are comfortable with market volatility
  • You have decades until retirement
  • You have not maxed out tax-advantaged accounts
  • The mortgage interest deduction benefits you

Many people find a balanced approach works best: contribute enough to get any employer 401(k) match, fund an emergency savings account, then split remaining funds between extra mortgage payments and additional investing. There is no one-size-fits-all answer, and a financial advisor can help you optimize for your tax situation and risk tolerance.

Frequently Asked Questions

How much can I save with extra mortgage payments?

The savings depend on your loan amount, interest rate, remaining term, and how much extra you pay. As a rough guide, an extra $200 per month on a $280,000 mortgage at 6.5% can save over $90,000 in interest and pay off the loan roughly 8 years early. Use the calculator above with your specific numbers to see your exact savings.

Compare rates from real lenders

Do extra payments go toward principal or interest?

Extra payments should be applied entirely to principal reduction. When you make an extra payment, specify to your lender that it should reduce the principal balance, not be counted as an advance on next month's payment. Most online banking portals have an option to designate extra payments as principal-only.

Is there a penalty for paying off a mortgage early?

Most conventional mortgages in the United States do not have prepayment penalties. However, some loan products — especially certain adjustable-rate mortgages, subprime loans, or loans from specific lenders — may include prepayment penalty clauses. Review your loan agreement or contact your lender before starting an aggressive extra payment strategy.

What is the best time to start making extra payments?

The earlier the better. Because mortgage interest is front-loaded, extra payments in the first few years of your loan have the greatest impact. However, it is never too late to start — even extra payments in year 15 of a 30-year mortgage will still save you money. The most important thing is to start when your financial situation allows it.

Should I make extra mortgage payments or pay off other debt first?

Generally, pay off higher-interest debt first. Credit cards (15-25% APR), personal loans (8-15% APR), and car loans (5-10% APR) typically carry higher rates than mortgages. The mathematically optimal approach is to make minimum payments on everything and apply all extra money to the highest-rate debt. Once higher-rate debt is eliminated, redirect those payments to your mortgage.

Can I make a lump sum payment at any time?

Yes, most mortgage agreements allow you to make lump sum principal payments at any time during the loan term. Simply contact your lender or use their online portal to submit a principal-only payment. Be sure to specify that the payment should be applied to principal reduction. Some lenders process extra payments immediately, while others apply them on the next payment date.

How accurate is this extra payment calculator?

This calculator uses the standard amortization formula and is accurate to the cent for fixed-rate loans. It calculates principal and interest only — property taxes, insurance, PMI, and other escrow items are not included. Actual results may vary slightly depending on your lender's rounding methods, payment processing dates, and whether extra payments are applied immediately or on the next due date.

Should I make extra payments or invest the money?

Paying extra on your mortgage gives you a guaranteed return equal to your interest rate. If your mortgage rate is 6-7%, that is a solid guaranteed return that beats most savings accounts and many bonds. However, the stock market has historically returned 8-10% annually over long periods (with significant volatility). Consider your risk tolerance, time horizon, tax situation, and whether you have other high-interest debt before deciding. Many people find a balanced approach — some extra payments and some investing — gives them peace of mind.