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Mortgages

Extra Mortgage Payment Calculator

See estimated interest savings and time saved from extra payments. Adjust the example inputs to explore how different assumptions affect the estimate.

Your scenario

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Start with the example values or enter your own assumptions.

Based on your inputs

Your estimate

Scheduled payment$1,804.04
Estimated payoff dateIn about 241 months
Estimated time saved59 months
Estimated interest saved$59,331.95

Educational estimate only. Actual terms, taxes, fees, and returns may differ.

View full amortization schedule (241 payments)
Payment by period
PaymentTotal paymentPrincipalInterestBalance
1$2,004.04$604.04$1,400.00$279,395.96
2$2,004.04$607.06$1,396.98$278,788.90
3$2,004.04$610.10$1,393.94$278,178.80
4$2,004.04$613.15$1,390.89$277,565.65
5$2,004.04$616.21$1,387.83$276,949.44
6$2,004.04$619.29$1,384.75$276,330.15
7$2,004.04$622.39$1,381.65$275,707.76
8$2,004.04$625.50$1,378.54$275,082.26
9$2,004.04$628.63$1,375.41$274,453.63
10$2,004.04$631.77$1,372.27$273,821.86
11$2,004.04$634.93$1,369.11$273,186.93
12$2,004.04$638.11$1,365.93$272,548.82
13$2,004.04$641.30$1,362.74$271,907.52
14$2,004.04$644.50$1,359.54$271,263.02
15$2,004.04$647.72$1,356.32$270,615.30
16$2,004.04$650.96$1,353.08$269,964.34
17$2,004.04$654.22$1,349.82$269,310.12
18$2,004.04$657.49$1,346.55$268,652.63
19$2,004.04$660.78$1,343.26$267,991.85
20$2,004.04$664.08$1,339.96$267,327.77
21$2,004.04$667.40$1,336.64$266,660.37
22$2,004.04$670.74$1,333.30$265,989.63
23$2,004.04$674.09$1,329.95$265,315.54
24$2,004.04$677.46$1,326.58$264,638.08
25$2,004.04$680.85$1,323.19$263,957.23
26$2,004.04$684.25$1,319.79$263,272.98
27$2,004.04$687.68$1,316.36$262,585.30
28$2,004.04$691.11$1,312.93$261,894.19
29$2,004.04$694.57$1,309.47$261,199.62
30$2,004.04$698.04$1,306.00$260,501.58
31$2,004.04$701.53$1,302.51$259,800.05
32$2,004.04$705.04$1,299.00$259,095.01
33$2,004.04$708.56$1,295.48$258,386.45
34$2,004.04$712.11$1,291.93$257,674.34
35$2,004.04$715.67$1,288.37$256,958.67
36$2,004.04$719.25$1,284.79$256,239.42
37$2,004.04$722.84$1,281.20$255,516.58
38$2,004.04$726.46$1,277.58$254,790.12
39$2,004.04$730.09$1,273.95$254,060.03
40$2,004.04$733.74$1,270.30$253,326.29
41$2,004.04$737.41$1,266.63$252,588.88
42$2,004.04$741.10$1,262.94$251,847.78
43$2,004.04$744.80$1,259.24$251,102.98
44$2,004.04$748.53$1,255.51$250,354.45
45$2,004.04$752.27$1,251.77$249,602.18
46$2,004.04$756.03$1,248.01$248,846.15
47$2,004.04$759.81$1,244.23$248,086.34
48$2,004.04$763.61$1,240.43$247,322.73
49$2,004.04$767.43$1,236.61$246,555.30
50$2,004.04$771.26$1,232.78$245,784.04
51$2,004.04$775.12$1,228.92$245,008.92
52$2,004.04$779.00$1,225.04$244,229.92
53$2,004.04$782.89$1,221.15$243,447.03
54$2,004.04$786.80$1,217.24$242,660.23
55$2,004.04$790.74$1,213.30$241,869.49
56$2,004.04$794.69$1,209.35$241,074.80
57$2,004.04$798.67$1,205.37$240,276.13
58$2,004.04$802.66$1,201.38$239,473.47
59$2,004.04$806.67$1,197.37$238,666.80
60$2,004.04$810.71$1,193.33$237,856.09
61$2,004.04$814.76$1,189.28$237,041.33
62$2,004.04$818.83$1,185.21$236,222.50
63$2,004.04$822.93$1,181.11$235,399.57
64$2,004.04$827.04$1,177.00$234,572.53
65$2,004.04$831.18$1,172.86$233,741.35
66$2,004.04$835.33$1,168.71$232,906.02
67$2,004.04$839.51$1,164.53$232,066.51
68$2,004.04$843.71$1,160.33$231,222.80
69$2,004.04$847.93$1,156.11$230,374.87
70$2,004.04$852.17$1,151.87$229,522.70
71$2,004.04$856.43$1,147.61$228,666.27
72$2,004.04$860.71$1,143.33$227,805.56
73$2,004.04$865.01$1,139.03$226,940.55
74$2,004.04$869.34$1,134.70$226,071.21
75$2,004.04$873.68$1,130.36$225,197.53
76$2,004.04$878.05$1,125.99$224,319.48
77$2,004.04$882.44$1,121.60$223,437.04
78$2,004.04$886.85$1,117.19$222,550.19
79$2,004.04$891.29$1,112.75$221,658.90
80$2,004.04$895.75$1,108.29$220,763.15
81$2,004.04$900.22$1,103.82$219,862.93
82$2,004.04$904.73$1,099.31$218,958.20
83$2,004.04$909.25$1,094.79$218,048.95
84$2,004.04$913.80$1,090.24$217,135.15
85$2,004.04$918.36$1,085.68$216,216.79
86$2,004.04$922.96$1,081.08$215,293.83
87$2,004.04$927.57$1,076.47$214,366.26
88$2,004.04$932.21$1,071.83$213,434.05
89$2,004.04$936.87$1,067.17$212,497.18
90$2,004.04$941.55$1,062.49$211,555.63
91$2,004.04$946.26$1,057.78$210,609.37
92$2,004.04$950.99$1,053.05$209,658.38
93$2,004.04$955.75$1,048.29$208,702.63
94$2,004.04$960.53$1,043.51$207,742.10
95$2,004.04$965.33$1,038.71$206,776.77
96$2,004.04$970.16$1,033.88$205,806.61
97$2,004.04$975.01$1,029.03$204,831.60
98$2,004.04$979.88$1,024.16$203,851.72
99$2,004.04$984.78$1,019.26$202,866.94
100$2,004.04$989.71$1,014.33$201,877.23
101$2,004.04$994.65$1,009.39$200,882.58
102$2,004.04$999.63$1,004.41$199,882.95
103$2,004.04$1,004.63$999.41$198,878.32
104$2,004.04$1,009.65$994.39$197,868.67
105$2,004.04$1,014.70$989.34$196,853.97
106$2,004.04$1,019.77$984.27$195,834.20
107$2,004.04$1,024.87$979.17$194,809.33
108$2,004.04$1,029.99$974.05$193,779.34
109$2,004.04$1,035.14$968.90$192,744.20
110$2,004.04$1,040.32$963.72$191,703.88
111$2,004.04$1,045.52$958.52$190,658.36
112$2,004.04$1,050.75$953.29$189,607.61
113$2,004.04$1,056.00$948.04$188,551.61
114$2,004.04$1,061.28$942.76$187,490.33
115$2,004.04$1,066.59$937.45$186,423.74
116$2,004.04$1,071.92$932.12$185,351.82
117$2,004.04$1,077.28$926.76$184,274.54
118$2,004.04$1,082.67$921.37$183,191.87
119$2,004.04$1,088.08$915.96$182,103.79
120$2,004.04$1,093.52$910.52$181,010.27
121$2,004.04$1,098.99$905.05$179,911.28
122$2,004.04$1,104.48$899.56$178,806.80
123$2,004.04$1,110.01$894.03$177,696.79
124$2,004.04$1,115.56$888.48$176,581.23
125$2,004.04$1,121.13$882.91$175,460.10
126$2,004.04$1,126.74$877.30$174,333.36
127$2,004.04$1,132.37$871.67$173,200.99
128$2,004.04$1,138.04$866.00$172,062.95
129$2,004.04$1,143.73$860.31$170,919.22
130$2,004.04$1,149.44$854.60$169,769.78
131$2,004.04$1,155.19$848.85$168,614.59
132$2,004.04$1,160.97$843.07$167,453.62
133$2,004.04$1,166.77$837.27$166,286.85
134$2,004.04$1,172.61$831.43$165,114.24
135$2,004.04$1,178.47$825.57$163,935.77
136$2,004.04$1,184.36$819.68$162,751.41
137$2,004.04$1,190.28$813.76$161,561.13
138$2,004.04$1,196.23$807.81$160,364.90
139$2,004.04$1,202.22$801.82$159,162.68
140$2,004.04$1,208.23$795.81$157,954.45
141$2,004.04$1,214.27$789.77$156,740.18
142$2,004.04$1,220.34$783.70$155,519.84
143$2,004.04$1,226.44$777.60$154,293.40
144$2,004.04$1,232.57$771.47$153,060.83
145$2,004.04$1,238.74$765.30$151,822.09
146$2,004.04$1,244.93$759.11$150,577.16
147$2,004.04$1,251.15$752.89$149,326.01
148$2,004.04$1,257.41$746.63$148,068.60
149$2,004.04$1,263.70$740.34$146,804.90
150$2,004.04$1,270.02$734.02$145,534.88
151$2,004.04$1,276.37$727.67$144,258.51
152$2,004.04$1,282.75$721.29$142,975.76
153$2,004.04$1,289.16$714.88$141,686.60
154$2,004.04$1,295.61$708.43$140,390.99
155$2,004.04$1,302.09$701.95$139,088.90
156$2,004.04$1,308.60$695.44$137,780.30
157$2,004.04$1,315.14$688.90$136,465.16
158$2,004.04$1,321.71$682.33$135,143.45
159$2,004.04$1,328.32$675.72$133,815.13
160$2,004.04$1,334.96$669.08$132,480.17
161$2,004.04$1,341.64$662.40$131,138.53
162$2,004.04$1,348.35$655.69$129,790.18
163$2,004.04$1,355.09$648.95$128,435.09
164$2,004.04$1,361.86$642.18$127,073.23
165$2,004.04$1,368.67$635.37$125,704.56
166$2,004.04$1,375.52$628.52$124,329.04
167$2,004.04$1,382.39$621.65$122,946.65
168$2,004.04$1,389.31$614.73$121,557.34
169$2,004.04$1,396.25$607.79$120,161.09
170$2,004.04$1,403.23$600.81$118,757.86
171$2,004.04$1,410.25$593.79$117,347.61
172$2,004.04$1,417.30$586.74$115,930.31
173$2,004.04$1,424.39$579.65$114,505.92
174$2,004.04$1,431.51$572.53$113,074.41
175$2,004.04$1,438.67$565.37$111,635.74
176$2,004.04$1,445.86$558.18$110,189.88
177$2,004.04$1,453.09$550.95$108,736.79
178$2,004.04$1,460.36$543.68$107,276.43
179$2,004.04$1,467.66$536.38$105,808.77
180$2,004.04$1,475.00$529.04$104,333.77
181$2,004.04$1,482.37$521.67$102,851.40
182$2,004.04$1,489.78$514.26$101,361.62
183$2,004.04$1,497.23$506.81$99,864.39
184$2,004.04$1,504.72$499.32$98,359.67
185$2,004.04$1,512.24$491.80$96,847.43
186$2,004.04$1,519.80$484.24$95,327.63
187$2,004.04$1,527.40$476.64$93,800.23
188$2,004.04$1,535.04$469.00$92,265.19
189$2,004.04$1,542.71$461.33$90,722.48
190$2,004.04$1,550.43$453.61$89,172.05
191$2,004.04$1,558.18$445.86$87,613.87
192$2,004.04$1,565.97$438.07$86,047.90
193$2,004.04$1,573.80$430.24$84,474.10
194$2,004.04$1,581.67$422.37$82,892.43
195$2,004.04$1,589.58$414.46$81,302.85
196$2,004.04$1,597.53$406.51$79,705.32
197$2,004.04$1,605.51$398.53$78,099.81
198$2,004.04$1,613.54$390.50$76,486.27
199$2,004.04$1,621.61$382.43$74,864.66
200$2,004.04$1,629.72$374.32$73,234.94
201$2,004.04$1,637.87$366.17$71,597.07
202$2,004.04$1,646.05$357.99$69,951.02
203$2,004.04$1,654.28$349.76$68,296.74
204$2,004.04$1,662.56$341.48$66,634.18
205$2,004.04$1,670.87$333.17$64,963.31
206$2,004.04$1,679.22$324.82$63,284.09
207$2,004.04$1,687.62$316.42$61,596.47
208$2,004.04$1,696.06$307.98$59,900.41
209$2,004.04$1,704.54$299.50$58,195.87
210$2,004.04$1,713.06$290.98$56,482.81
211$2,004.04$1,721.63$282.41$54,761.18
212$2,004.04$1,730.23$273.81$53,030.95
213$2,004.04$1,738.89$265.15$51,292.06
214$2,004.04$1,747.58$256.46$49,544.48
215$2,004.04$1,756.32$247.72$47,788.16
216$2,004.04$1,765.10$238.94$46,023.06
217$2,004.04$1,773.92$230.12$44,249.14
218$2,004.04$1,782.79$221.25$42,466.35
219$2,004.04$1,791.71$212.33$40,674.64
220$2,004.04$1,800.67$203.37$38,873.97
221$2,004.04$1,809.67$194.37$37,064.30
222$2,004.04$1,818.72$185.32$35,245.58
223$2,004.04$1,827.81$176.23$33,417.77
224$2,004.04$1,836.95$167.09$31,580.82
225$2,004.04$1,846.14$157.90$29,734.68
226$2,004.04$1,855.37$148.67$27,879.31
227$2,004.04$1,864.64$139.40$26,014.67
228$2,004.04$1,873.97$130.07$24,140.70
229$2,004.04$1,883.34$120.70$22,257.36
230$2,004.04$1,892.75$111.29$20,364.61
231$2,004.04$1,902.22$101.82$18,462.39
232$2,004.04$1,911.73$92.31$16,550.66
233$2,004.04$1,921.29$82.75$14,629.37
234$2,004.04$1,930.89$73.15$12,698.48
235$2,004.04$1,940.55$63.49$10,757.93
236$2,004.04$1,950.25$53.79$8,807.68
237$2,004.04$1,960.00$44.04$6,847.68
238$2,004.04$1,969.80$34.24$4,877.88
239$2,004.04$1,979.65$24.39$2,898.23
240$2,004.04$1,989.55$14.49$908.68
241$913.22$908.68$4.54$0.00

How to use this calculator

Enter the current balance, rate, remaining term, extra monthly principal, and optional one-time principal payment.

How the calculation works

The baseline uses a standard fixed-payment amortization. The alternate schedule applies the one-time reduction first, then pays the scheduled amount plus the extra monthly amount until the balance reaches zero.

Worked example

An additional principal payment reduces the balance used to calculate later interest in this simplified monthly model.

Assumptions and limitations

Assumes the servicer applies extra money to principal and no prepayment fee applies. Actual interest accrues under the loan contract and may use daily balances or different payment timing.

Frequently asked questions

Does extra money always reduce principal?

Not necessarily. Confirm payment instructions and allocation with the servicer.

Does the model include fees?

No. Check your contract for any fees or prepayment terms.

Sources and further reading

Learn more

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Educational tool only. It does not provide personalized financial, tax, or legal advice.