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Extra Payment Mortgage Calculator

See how extra monthly payments or a lump sum can shorten your loan and cut interest — results update instantly.

What is an Extra Payment Mortgage Calculator?

An extra payment mortgage calculator helps you see how making additional payments on your mortgage can save you money and reduce your loan term. By calculating the impact of extra payments, you can visualize how even small additional amounts applied to your principal can significantly decrease the total interest paid over the life of your loan and help you become mortgage-free sooner.

Making extra payments toward your mortgage principal can be a powerful financial strategy. When you pay more than your required monthly payment, the additional amount goes directly toward reducing your loan balance, which means less interest accrues over time. This calculator allows you to experiment with different payment scenarios to find an approach that fits your budget while maximizing your long-term savings.

  • Reduced Interest Costs

    Making extra payments can save you thousands of dollars in interest over the life of your loan.

  • Shortened Loan Term

    Extra payments can cut years off your mortgage. Even an additional $50 per month on a 30-year mortgage can reduce your payment time by nearly 2 years.

  • Flexible Payment Options

    You can make one-time lump sum payments, regular monthly extra payments, or biweekly payments to accelerate your mortgage payoff.

  • Earlier Financial Freedom

    Paying off your mortgage faster means achieving debt freedom sooner, giving you more financial flexibility for other goals like retirement or education funding.

Payoff Milestone

Your original 30-year schedule vs. your new payoff date with extra payments applied.

Month 0New payoff: month 360Original term end: month 360
Paid down with extra payments Time saved off the original term
Time Saved
None yet
add extra payments above
Interest Saved
$0
vs. standard schedule
New Payoff Date
September 2056
vs. September 2056 standard

1Loan Details

2Extra Payments

Extra amount added to every monthly payment, applied to principal.
12 = after one year. Enter 0 to skip — if 0, the lump sum amount is ignored.

3Loan Start Date

Defaults to today. Enter a past date to see what your payoff date would have looked like from when the loan actually began.

Your Loan Summary

New Payoff Date
September 2056
Same as standard schedule
Interest Savings
$0
vs. standard schedule
Total Savings
$0
reduced interest cost
Payoff Time
30 years
vs. 30 years standard

Payment Distribution

How your recurring monthly outlay splits between the standard payment and your extra monthly payment (lump sums are one-time and shown separately).

Payment Comparison

Standard ScheduleWith Extra Payments
Monthly Payment$1,580$1,580
Loan Term30 years30 years
Total Interest Paid$318,861$318,861
Total Amount Paid$568,861$568,861
Payoff DateSeptember 2056September 2056

Amortization Schedule (with extra payments)

MonthPrincipal PaidInterest PaidRemaining Balance
1$226$1,354$249,774
2$227$1,353$249,547
3$228$1,352$249,318
4$230$1,350$249,089
5$231$1,349$248,858
6$232$1,348$248,625
7$233$1,347$248,392
8$235$1,345$248,157
9$236$1,344$247,921
10$237$1,343$247,684
11$239$1,342$247,446
12$240$1,340$247,206
13$241$1,339$246,965
14$242$1,338$246,722
15$244$1,336$246,478
16$245$1,335$246,233
17$246$1,334$245,987
18$248$1,332$245,739
19$249$1,331$245,490
20$250$1,330$245,240
21$252$1,328$244,988
22$253$1,327$244,735
23$255$1,326$244,480
24$256$1,324$244,224
25$257$1,323$243,967
26$259$1,321$243,708
27$260$1,320$243,448
28$261$1,319$243,187
29$263$1,317$242,924
30$264$1,316$242,659
31$266$1,314$242,394
32$267$1,313$242,126
33$269$1,312$241,858
34$270$1,310$241,588
35$272$1,309$241,316
36$273$1,307$241,043
37$275$1,306$240,769
38$276$1,304$240,493
39$278$1,303$240,215
40$279$1,301$239,936
41$281$1,300$239,656
42$282$1,298$239,374
43$284$1,297$239,090
44$285$1,295$238,805
45$287$1,294$238,518
46$288$1,292$238,230
47$290$1,290$237,940
48$291$1,289$237,649
49$293$1,287$237,356
50$294$1,286$237,062
51$296$1,284$236,765
52$298$1,282$236,468
53$299$1,281$236,168
54$301$1,279$235,868
55$303$1,278$235,565
56$304$1,276$235,261
57$306$1,274$234,955
58$307$1,273$234,647
59$309$1,271$234,338
60$311$1,269$234,027
61$313$1,268$233,715
62$314$1,266$233,401
63$316$1,264$233,085
64$318$1,263$232,767
65$319$1,261$232,448
66$321$1,259$232,127
67$323$1,257$231,804
68$325$1,256$231,479
69$326$1,254$231,153
70$328$1,252$230,825
71$330$1,250$230,495
72$332$1,249$230,163
73$333$1,247$229,830
74$335$1,245$229,495
75$337$1,243$229,158
76$339$1,241$228,819
77$341$1,239$228,478
78$343$1,238$228,135
79$344$1,236$227,791
80$346$1,234$227,445
81$348$1,232$227,097
82$350$1,230$226,746
83$352$1,228$226,394
84$354$1,226$226,041
85$356$1,224$225,685
86$358$1,222$225,327
87$360$1,221$224,967
88$362$1,219$224,606
89$364$1,217$224,242
90$366$1,215$223,877
91$368$1,213$223,509
92$369$1,211$223,140
93$371$1,209$222,768
94$374$1,207$222,395
95$376$1,205$222,019
96$378$1,203$221,642
97$380$1,201$221,262
98$382$1,199$220,880
99$384$1,196$220,497
100$386$1,194$220,111
101$388$1,192$219,723
102$390$1,190$219,333
103$392$1,188$218,941
104$394$1,186$218,547
105$396$1,184$218,150
106$399$1,182$217,752
107$401$1,179$217,351
108$403$1,177$216,948
109$405$1,175$216,543
110$407$1,173$216,136
111$409$1,171$215,726
112$412$1,169$215,315
113$414$1,166$214,901
114$416$1,164$214,485
115$418$1,162$214,066
116$421$1,160$213,646
117$423$1,157$213,223
118$425$1,155$212,798
119$428$1,153$212,370
120$430$1,150$211,940
121$432$1,148$211,508
122$435$1,146$211,074
123$437$1,143$210,637
124$439$1,141$210,198
125$442$1,139$209,756
126$444$1,136$209,312
127$446$1,134$208,866
128$449$1,131$208,417
129$451$1,129$207,966
130$454$1,126$207,512
131$456$1,124$207,056
132$459$1,122$206,597
133$461$1,119$206,136
134$464$1,117$205,672
135$466$1,114$205,206
136$469$1,112$204,738
137$471$1,109$204,266
138$474$1,106$203,793
139$476$1,104$203,316
140$479$1,101$202,838
141$481$1,099$202,356
142$484$1,096$201,872
143$487$1,093$201,385
144$489$1,091$200,896
145$492$1,088$200,404
146$495$1,086$199,909
147$497$1,083$199,412
148$500$1,080$198,912
149$503$1,077$198,409
150$505$1,075$197,904
151$508$1,072$197,396
152$511$1,069$196,885
153$514$1,066$196,371
154$516$1,064$195,854
155$519$1,061$195,335
156$522$1,058$194,813
157$525$1,055$194,288
158$528$1,052$193,760
159$531$1,050$193,230
160$534$1,047$192,696
161$536$1,044$192,160
162$539$1,041$191,621
163$542$1,038$191,078
164$545$1,035$190,533
165$548$1,032$189,985
166$551$1,029$189,434
167$554$1,026$188,880
168$557$1,023$188,323
169$560$1,020$187,763
170$563$1,017$187,200
171$566$1,014$186,633
172$569$1,011$186,064
173$572$1,008$185,492
174$575$1,005$184,916
175$579$1,002$184,338
176$582$998$183,756
177$585$995$183,171
178$588$992$182,583
179$591$989$181,992
180$594$986$181,398
181$598$983$180,800
182$601$979$180,199
183$604$976$179,595
184$607$973$178,988
185$611$970$178,377
186$614$966$177,763
187$617$963$177,146
188$621$960$176,525
189$624$956$175,901
190$627$953$175,274
191$631$949$174,643
192$634$946$174,009
193$638$943$173,372
194$641$939$172,730
195$645$936$172,086
196$648$932$171,438
197$652$929$170,786
198$655$925$170,131
199$659$922$169,473
200$662$918$168,810
201$666$914$168,145
202$669$911$167,475
203$673$907$166,802
204$677$904$166,126
205$680$900$165,445
206$684$896$164,761
207$688$892$164,074
208$691$889$163,382
209$695$885$162,687
210$699$881$161,988
211$703$877$161,285
212$707$874$160,579
213$710$870$159,868
214$714$866$159,154
215$718$862$158,436
216$722$858$157,714
217$726$854$156,988
218$730$850$156,258
219$734$846$155,525
220$738$842$154,787
221$742$838$154,045
222$746$834$153,299
223$750$830$152,550
224$754$826$151,796
225$758$822$151,038
226$762$818$150,276
227$766$814$149,509
228$770$810$148,739
229$774$806$147,965
230$779$801$147,186
231$783$797$146,403
232$787$793$145,616
233$791$789$144,824
234$796$784$144,029
235$800$780$143,229
236$804$776$142,424
237$809$771$141,616
238$813$767$140,803
239$817$763$139,985
240$822$758$139,163
241$826$754$138,337
242$831$749$137,506
243$835$745$136,671
244$840$740$135,831
245$844$736$134,986
246$849$731$134,137
247$854$727$133,284
248$858$722$132,426
249$863$717$131,563
250$868$713$130,695
251$872$708$129,823
252$877$703$128,946
253$882$698$128,064
254$886$694$127,178
255$891$689$126,286
256$896$684$125,390
257$901$679$124,489
258$906$674$123,584
259$911$669$122,673
260$916$664$121,757
261$921$660$120,836
262$926$655$119,911
263$931$650$118,980
264$936$644$118,044
265$941$639$117,104
266$946$634$116,158
267$951$629$115,207
268$956$624$114,251
269$961$619$113,289
270$967$614$112,323
271$972$608$111,351
272$977$603$110,374
273$982$598$109,392
274$988$593$108,404
275$993$587$107,411
276$998$582$106,413
277$1,004$576$105,409
278$1,009$571$104,400
279$1,015$565$103,385
280$1,020$560$102,365
281$1,026$554$101,339
282$1,031$549$100,308
283$1,037$543$99,271
284$1,042$538$98,229
285$1,048$532$97,181
286$1,054$526$96,127
287$1,059$521$95,067
288$1,065$515$94,002
289$1,071$509$92,931
290$1,077$503$91,854
291$1,083$498$90,772
292$1,088$492$89,683
293$1,094$486$88,589
294$1,100$480$87,489
295$1,106$474$86,382
296$1,112$468$85,270
297$1,118$462$84,152
298$1,124$456$83,027
299$1,130$450$81,897
300$1,137$444$80,760
301$1,143$437$79,618
302$1,149$431$78,469
303$1,155$425$77,314
304$1,161$419$76,152
305$1,168$412$74,985
306$1,174$406$73,811
307$1,180$400$72,630
308$1,187$393$71,443
309$1,193$387$70,250
310$1,200$381$69,051
311$1,206$374$67,844
312$1,213$367$66,632
313$1,219$361$65,413
314$1,226$354$64,187
315$1,232$348$62,954
316$1,239$341$61,715
317$1,246$334$60,469
318$1,253$328$59,217
319$1,259$321$57,957
320$1,266$314$56,691
321$1,273$307$55,418
322$1,280$300$54,138
323$1,287$293$52,851
324$1,294$286$51,557
325$1,301$279$50,256
326$1,308$272$48,948
327$1,315$265$47,633
328$1,322$258$46,311
329$1,329$251$44,982
330$1,337$244$43,645
331$1,344$236$42,301
332$1,351$229$40,950
333$1,358$222$39,592
334$1,366$214$38,226
335$1,373$207$36,853
336$1,381$200$35,473
337$1,388$192$34,085
338$1,396$185$32,689
339$1,403$177$31,286
340$1,411$169$29,875
341$1,418$162$28,457
342$1,426$154$27,031
343$1,434$146$25,597
344$1,442$139$24,156
345$1,449$131$22,706
346$1,457$123$21,249
347$1,465$115$19,784
348$1,473$107$18,311
349$1,481$99$16,830
350$1,489$91$15,341
351$1,497$83$13,844
352$1,505$75$12,339
353$1,513$67$10,825
354$1,522$59$9,304
355$1,530$50$7,774
356$1,538$42$6,236
357$1,546$34$4,690
358$1,555$25$3,135
359$1,563$17$1,572
360$1,572$9$0

Compare Different Loan Terms

Same loan amount, rate, and extra payment inputs applied across all four standard terms.

Loan TermStandard PaymentPayoff Time (Extra)Total Interest (Extra)Interest Savings
30 Years$1,58030 years$318,861$0
20 Years$1,86420 years$197,344$0
15 Years$2,17815 years$141,998$0
10 Years$2,83910 years$90,644$0

This Extra Payment Calculator is for illustrative purposes only and not a guarantee of actual savings or loan terms. Results are estimates based on the information provided and may not reflect your actual situation.

Recommendations & Key Insights

Interest Savings

  • No extra payments are currently entered — add a monthly amount or lump sum above to see potential interest savings.

Payoff Strategy

  • Try the preset scenarios above (Minimal, Moderate, Aggressive) to see how different extra-payment strategies compare.

Next Steps

Based on your scenario, here's what we'd suggest next:

  • Compare a shorter standard term (below) against extra payments on your current term — sometimes one beats the other.
  • Contact a Mortgage Brothers loan officer to review refinance or recasting options if you want to lock in a lower required payment.

Ready to Save on Your Mortgage?

See how much you could save with extra payments on your Arizona mortgage. Our mortgage experts can help you create a personalized payment plan that fits your budget and financial goals.

Get a Personalized Payment Plan

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Get Expert Advice on Your Mortgage Payment Strategy

Have questions about making extra payments on your mortgage? Our team is ready to help you create a personalized payment plan that fits your budget and maximizes your savings. Contact us today to speak with a mortgage professional who can guide you through your options and help you achieve mortgage freedom sooner.