Loanweek

$300,000 mortgage at 4%

$1,432.25/month principal and interest

$215,609 total interest over 30 years

Principal $300,000 Interest $215,609. 42¢ of every dollar paid goes to interest.

30-year fixed at 4%. At this week's 7.03% average the payment would be $2,001.96 (−$569.71 a month at 4%).

Source: Freddie Mac Primary Mortgage Market Survey, week of September 24, 2026. An average, not an offer.

Payment on $300,000 at nearby rates

30-year fixed; difference compared with this week's average
RateMonthly paymentDifferenceTotal interest
3.00% $1,264.81−$737.14$155,332
3.25% $1,305.62−$696.34$170,023
3.50% $1,347.13−$654.82$184,968
3.75% $1,389.35−$612.61$200,165
4.00% this page $1,432.25−$569.71$215,609
4.25% $1,475.82−$526.14$231,295
4.50% $1,520.06−$481.90$247,220
4.75% $1,564.94−$437.01$263,379
5.00% $1,610.46−$391.49$279,767
7.03% this week's average $2,001.96$0.00$420,704

Other terms at 4%

TermRateMonthly paymentTotal interestTotal paid
15-year fixed 4.00%$2,219.06$99,431$399,431
20-year fixed 4.00%$1,817.94$136,306$436,306
30-year fixed 4.00%$1,432.25$215,609$515,609

With taxes

Assumes the $300,000 loan is 80% of a $375,000 purchase (20% down, so no PMI).
Principal and interest$1,432.25
Property tax 0.78% a year, estimate$243.75
Homeowners insurancenot included
Monthly total$1,676.00

Estimate: the median of the 32 state rates we have sourced. Insurance is left out because we have no sourced average for this estimate yet; add your own quote.

Income needed

To keep the $1,676.00 monthly housing cost at 28% of gross income, you'd need about $71,828 a year. Lenders also cap total debt payments near 36% of income, so car and student loan payments reduce what you can borrow.

Amortization schedule

For the first 12 years 8 months, more of each payment goes to interest than to principal. From payment 153 on, principal takes the larger share.

Principal and interest paid each year on a $300,000 mortgageEach column is one loan year: principal paid (blue) and interest paid (raspberry). Principal overtakes interest in year 14.PrincipalInterest$0$5k$10k$15k$20kYear 1: principal $5,283, interest $11,904, balance after $294,7171Year 2: principal $5,498, interest $11,689, balance after $289,219Year 3: principal $5,722, interest $11,465, balance after $283,496Year 4: principal $5,956, interest $11,231, balance after $277,541Year 5: principal $6,198, interest $10,989, balance after $271,3435Year 6: principal $6,451, interest $10,736, balance after $264,892Year 7: principal $6,713, interest $10,473, balance after $258,178Year 8: principal $6,987, interest $10,200, balance after $251,191Year 9: principal $7,272, interest $9,915, balance after $243,920Year 10: principal $7,568, interest $9,619, balance after $236,35210Year 11: principal $7,876, interest $9,311, balance after $228,476Year 12: principal $8,197, interest $8,990, balance after $220,279Year 13: principal $8,531, interest $8,656, balance after $211,747Year 14: principal $8,879, interest $8,308, balance after $202,869Year 15: principal $9,240, interest $7,947, balance after $193,62815Year 16: principal $9,617, interest $7,570, balance after $184,012Year 17: principal $10,009, interest $7,178, balance after $174,003Year 18: principal $10,416, interest $6,771, balance after $163,586Year 19: principal $10,841, interest $6,346, balance after $152,746Year 20: principal $11,282, interest $5,904, balance after $141,46320Year 21: principal $11,742, interest $5,445, balance after $129,721Year 22: principal $12,221, interest $4,966, balance after $117,500Year 23: principal $12,718, interest $4,469, balance after $104,782Year 24: principal $13,237, interest $3,950, balance after $91,545Year 25: principal $13,776, interest $3,411, balance after $77,77025Year 26: principal $14,337, interest $2,850, balance after $63,433Year 27: principal $14,921, interest $2,266, balance after $48,511Year 28: principal $15,529, interest $1,658, balance after $32,982Year 29: principal $16,162, interest $1,025, balance after $16,820Year 30: principal $16,820, interest $367, balance after $030loan year

First 12 months

Amortization schedule for a $300,000 mortgage at 4.00% over 30 years, months 1–12; each payment $1,432.25
MonthPrincipalInterestBalance
1$432.25$1,000.00$299,567.75
2$433.69$998.56$299,134.07
3$435.13$997.11$298,698.94
4$436.58$995.66$298,262.35
5$438.04$994.21$297,824.31
6$439.50$992.75$297,384.82
7$440.96$991.28$296,943.85
8$442.43$989.81$296,501.42
9$443.91$988.34$296,057.51
10$445.39$986.86$295,612.12
11$446.87$985.37$295,165.25
12$448.36$983.88$294,716.89

Year by year

Totals for each loan year
YearPrincipalInterestBalance at year end
1$5,283$11,904$294,717
2$5,498$11,689$289,219
3$5,722$11,465$283,496
4$5,956$11,231$277,541
5$6,198$10,989$271,343
6$6,451$10,736$264,892
7$6,713$10,473$258,178
8$6,987$10,200$251,191
9$7,272$9,915$243,920
10$7,568$9,619$236,352
11$7,876$9,311$228,476
12$8,197$8,990$220,279
13$8,531$8,656$211,747
14$8,879$8,308$202,869
15$9,240$7,947$193,628
16$9,617$7,570$184,012
17$10,009$7,178$174,003
18$10,416$6,771$163,586
19$10,841$6,346$152,746
20$11,282$5,904$141,463
21$11,742$5,445$129,721
22$12,221$4,966$117,500
23$12,718$4,469$104,782
24$13,237$3,950$91,545
25$13,776$3,411$77,770
26$14,337$2,850$63,433
27$14,921$2,266$48,511
28$15,529$1,658$32,982
29$16,162$1,025$16,820
30$16,820$367$0
Total$300,000$215,609$0
Balance remaining on a $300,000 mortgage over 30 yearsLoan balance remaining at the end of each year, from $300,000 to $0.$0$100k$200k$300kStartYear 15Year 30Balance, Start: $300kBalance, Year 1: $294.7kBalance, Year 2: $289.2kBalance, Year 3: $283.5kBalance, Year 4: $277.5kBalance, Year 5: $271.3kBalance, Year 6: $264.9kBalance, Year 7: $258.2kBalance, Year 8: $251.2kBalance, Year 9: $243.9kBalance, Year 10: $236.4kBalance, Year 11: $228.5kBalance, Year 12: $220.3kBalance, Year 13: $211.7kBalance, Year 14: $202.9kBalance, Year 15: $193.6kBalance, Year 16: $184kBalance, Year 17: $174kBalance, Year 18: $163.6kBalance, Year 19: $152.7kBalance, Year 20: $141.5kBalance, Year 21: $129.7kBalance, Year 22: $117.5kBalance, Year 23: $104.8kBalance, Year 24: $91.5kBalance, Year 25: $77.8kBalance, Year 26: $63.4kBalance, Year 27: $48.5kBalance, Year 28: $33kBalance, Year 29: $16.8kBalance, Year 30: $0
Full schedule, all 360 payments
Amortization schedule for a $300,000 mortgage at 4.00% over 30 years, every payment
MonthPrincipalInterestBalance
1432.251,000.00299,567.75
2433.69998.56299,134.07
3435.13997.11298,698.94
4436.58995.66298,262.35
5438.04994.21297,824.31
6439.50992.75297,384.82
7440.96991.28296,943.85
8442.43989.81296,501.42
9443.91988.34296,057.51
10445.39986.86295,612.12
11446.87985.37295,165.25
12448.36983.88294,716.89
13449.86982.39294,267.03
14451.36980.89293,815.68
15452.86979.39293,362.82
16454.37977.88292,908.45
17455.88976.36292,452.56
18457.40974.84291,995.16
19458.93973.32291,536.23
20460.46971.79291,075.77
21461.99970.25290,613.78
22463.53968.71290,150.25
23465.08967.17289,685.17
24466.63965.62289,218.54
25468.18964.06288,750.36
26469.74962.50288,280.61
27471.31960.94287,809.30
28472.88959.36287,336.42
29474.46957.79286,861.96
30476.04956.21286,385.92
31477.63954.62285,908.30
32479.22953.03285,429.08
33480.82951.43284,948.26
34482.42949.83284,465.84
35484.03948.22283,981.82
36485.64946.61283,496.18
37487.26944.99283,008.92
38488.88943.36282,520.04
39490.51941.73282,029.52
40492.15940.10281,537.38
41493.79938.46281,043.59
42495.43936.81280,548.15
43497.09935.16280,051.07
44498.74933.50279,552.33
45500.40931.84279,051.92
46502.07930.17278,549.85
47503.75928.50278,046.10
48505.43926.82277,540.68
49507.11925.14277,033.57
50508.80923.45276,524.77
51510.50921.75276,014.27
52512.20920.05275,502.07
53513.91918.34274,988.16
54515.62916.63274,472.55
55517.34914.91273,955.21
56519.06913.18273,436.15
57520.79911.45272,915.35
58522.53909.72272,392.83
59524.27907.98271,868.56
60526.02906.23271,342.54
61527.77904.48270,814.77
62529.53902.72270,285.24
63531.30900.95269,753.94
64533.07899.18269,220.88
65534.84897.40268,686.03
66536.63895.62268,149.41
67538.41893.83267,610.99
68540.21892.04267,070.79
69542.01890.24266,528.78
70543.82888.43265,984.96
71545.63886.62265,439.33
72547.45884.80264,891.88
73549.27882.97264,342.61
74551.10881.14263,791.50
75552.94879.31263,238.56
76554.78877.46262,683.78
77556.63875.61262,127.15
78558.49873.76261,568.66
79560.35871.90261,008.31
80562.22870.03260,446.09
81564.09868.15259,882.00
82565.97866.27259,316.02
83567.86864.39258,748.16
84569.75862.49258,178.41
85571.65860.59257,606.76
86573.56858.69257,033.20
87575.47856.78256,457.74
88577.39854.86255,880.35
89579.31852.93255,301.04
90581.24851.00254,719.80
91583.18849.07254,136.62
92585.12847.12253,551.49
93587.07845.17252,964.42
94589.03843.21252,375.39
95590.99841.25251,784.39
96592.96839.28251,191.43
97594.94837.30250,596.49
98596.92835.32249,999.56
99598.91833.33249,400.65
100600.91831.34248,799.74
101602.91829.33248,196.82
102604.92827.32247,591.90
103606.94825.31246,984.96
104608.96823.28246,376.00
105610.99821.25245,765.01
106613.03819.22245,151.98
107615.07817.17244,536.90
108617.12815.12243,919.78
109619.18813.07243,300.60
110621.24811.00242,679.36
111623.31808.93242,056.04
112625.39806.85241,430.65
113627.48804.77240,803.17
114629.57802.68240,173.60
115631.67800.58239,541.94
116633.77798.47238,908.16
117635.89796.36238,272.28
118638.00794.24237,634.27
119640.13792.11236,994.14
120642.27789.98236,351.88
121644.41787.84235,707.47
122646.55785.69235,060.92
123648.71783.54234,412.21
124650.87781.37233,761.34
125653.04779.20233,108.29
126655.22777.03232,453.08
127657.40774.84231,795.67
128659.59772.65231,136.08
129661.79770.45230,474.29
130664.00768.25229,810.29
131666.21766.03229,144.08
132668.43763.81228,475.65
133670.66761.59227,804.99
134672.90759.35227,132.09
135675.14757.11226,456.95
136677.39754.86225,779.56
137679.65752.60225,099.91
138681.91750.33224,418.00
139684.19748.06223,733.81
140686.47745.78223,047.35
141688.75743.49222,358.59
142691.05741.20221,667.54
143693.35738.89220,974.19
144695.67736.58220,278.52
145697.98734.26219,580.54
146700.31731.94218,880.23
147702.65729.60218,177.58
148704.99727.26217,472.60
149707.34724.91216,765.26
150709.70722.55216,055.56
151712.06720.19215,343.50
152714.43717.81214,629.07
153716.82715.43213,912.25
154719.21713.04213,193.05
155721.60710.64212,471.45
156724.01708.24211,747.44
157726.42705.82211,021.02
158728.84703.40210,292.17
159731.27700.97209,560.90
160733.71698.54208,827.19
161736.16696.09208,091.04
162738.61693.64207,352.43
163741.07691.17206,611.36
164743.54688.70205,867.82
165746.02686.23205,121.80
166748.51683.74204,373.29
167751.00681.24203,622.29
168753.50678.74202,868.78
169756.02676.23202,112.77
170758.54673.71201,354.23
171761.07671.18200,593.17
172763.60668.64199,829.56
173766.15666.10199,063.42
174768.70663.54198,294.71
175771.26660.98197,523.45
176773.83658.41196,749.62
177776.41655.83195,973.20
178779.00653.24195,194.20
179781.60650.65194,412.60
180784.20648.04193,628.40
181786.82645.43192,841.58
182789.44642.81192,052.14
183792.07640.17191,260.07
184794.71637.53190,465.36
185797.36634.88189,667.99
186800.02632.23188,867.98
187802.69629.56188,065.29
188805.36626.88187,259.93
189808.05624.20186,451.88
190810.74621.51185,641.14
191813.44618.80184,827.70
192816.15616.09184,011.55
193818.87613.37183,192.67
194821.60610.64182,371.07
195824.34607.90181,546.73
196827.09605.16180,719.64
197829.85602.40179,889.79
198832.61599.63179,057.18
199835.39596.86178,221.79
200838.17594.07177,383.61
201840.97591.28176,542.65
202843.77588.48175,698.88
203846.58585.66174,852.29
204849.40582.84174,002.89
205852.24580.01173,150.65
206855.08577.17172,295.58
207857.93574.32171,437.65
208860.79571.46170,576.86
209863.66568.59169,713.20
210866.54565.71168,846.67
211869.42562.82167,977.25
212872.32559.92167,104.92
213875.23557.02166,229.69
214878.15554.10165,351.55
215881.07551.17164,470.47
216884.01548.23163,586.46
217886.96545.29162,699.50
218889.91542.33161,809.59
219892.88539.37160,916.71
220895.86536.39160,020.85
221898.84533.40159,122.01
222901.84530.41158,220.17
223904.85527.40157,315.33
224907.86524.38156,407.46
225910.89521.36155,496.58
226913.92518.32154,582.65
227916.97515.28153,665.68
228920.03512.22152,745.66
229923.09509.15151,822.56
230926.17506.08150,896.39
231929.26502.99149,967.13
232932.36499.89149,034.78
233935.46496.78148,099.31
234938.58493.66147,160.73
235941.71490.54146,219.02
236944.85487.40145,274.17
237948.00484.25144,326.17
238951.16481.09143,375.02
239954.33477.92142,420.69
240957.51474.74141,463.18
241960.70471.54140,502.47
242963.90468.34139,538.57
243967.12465.13138,571.45
244970.34461.90137,601.11
245973.58458.67136,627.54
246976.82455.43135,650.72
247980.08452.17134,670.64
248983.34448.90133,687.30
249986.62445.62132,700.67
250989.91442.34131,710.76
251993.21439.04130,717.55
252996.52435.73129,721.03
253999.84432.40128,721.19
2541,003.18429.07127,718.01
2551,006.52425.73126,711.50
2561,009.87422.37125,701.62
2571,013.24419.01124,688.38
2581,016.62415.63123,671.76
2591,020.01412.24122,651.76
2601,023.41408.84121,628.35
2611,026.82405.43120,601.53
2621,030.24402.01119,571.29
2631,033.67398.57118,537.62
2641,037.12395.13117,500.50
2651,040.58391.67116,459.92
2661,044.05388.20115,415.87
2671,047.53384.72114,368.35
2681,051.02381.23113,317.33
2691,054.52377.72112,262.81
2701,058.04374.21111,204.77
2711,061.56370.68110,143.21
2721,065.10367.14109,078.10
2731,068.65363.59108,009.45
2741,072.21360.03106,937.24
2751,075.79356.46105,861.45
2761,079.37352.87104,782.07
2771,082.97349.27103,699.10
2781,086.58345.66102,612.52
2791,090.20342.04101,522.32
2801,093.84338.41100,428.48
2811,097.48334.7699,330.99
2821,101.14331.1098,229.85
2831,104.81327.4397,125.04
2841,108.50323.7596,016.54
2851,112.19320.0694,904.35
2861,115.90316.3593,788.45
2871,119.62312.6392,668.84
2881,123.35308.9091,545.49
2891,127.09305.1590,418.39
2901,130.85301.3989,287.54
2911,134.62297.6388,152.92
2921,138.40293.8487,014.52
2931,142.20290.0585,872.32
2941,146.00286.2484,726.31
2951,149.82282.4283,576.49
2961,153.66278.5982,422.83
2971,157.50274.7481,265.33
2981,161.36270.8880,103.97
2991,165.23267.0178,938.73
3001,169.12263.1377,769.62
3011,173.01259.2376,596.60
3021,176.92255.3275,419.68
3031,180.85251.4074,238.83
3041,184.78247.4673,054.05
3051,188.73243.5171,865.32
3061,192.69239.5570,672.62
3071,196.67235.5869,475.95
3081,200.66231.5968,275.29
3091,204.66227.5867,070.63
3101,208.68223.5765,861.95
3111,212.71219.5464,649.25
3121,216.75215.5063,432.50
3131,220.80211.4462,211.70
3141,224.87207.3760,986.82
3151,228.96203.2959,757.87
3161,233.05199.1958,524.81
3171,237.16195.0857,287.65
3181,241.29190.9656,046.36
3191,245.42186.8254,800.94
3201,249.58182.6753,551.36
3211,253.74178.5052,297.62
3221,257.92174.3351,039.70
3231,262.11170.1349,777.59
3241,266.32165.9348,511.27
3251,270.54161.7047,240.72
3261,274.78157.4745,965.95
3271,279.03153.2244,686.92
3281,283.29148.9643,403.63
3291,287.57144.6842,116.06
3301,291.86140.3940,824.21
3311,296.17136.0839,528.04
3321,300.49131.7638,227.55
3331,304.82127.4336,922.73
3341,309.17123.0835,613.56
3351,313.53118.7134,300.03
3361,317.91114.3332,982.12
3371,322.31109.9431,659.81
3381,326.71105.5330,333.10
3391,331.14101.1129,001.96
3401,335.5796.6727,666.39
3411,340.0292.2226,326.37
3421,344.4987.7524,981.87
3431,348.9783.2723,632.90
3441,353.4778.7822,279.43
3451,357.9874.2620,921.45
3461,362.5169.7419,558.94
3471,367.0565.2018,191.89
3481,371.6160.6416,820.29
3491,376.1856.0715,444.11
3501,380.7751.4814,063.34
3511,385.3746.8812,677.98
3521,389.9942.2611,287.99
3531,394.6237.639,893.37
3541,399.2732.988,494.10
3551,403.9328.317,090.17
3561,408.6123.635,681.56
3571,413.3118.944,268.25
3581,418.0214.232,850.23
3591,422.759.501,427.49
3601,427.494.760.00

Questions

How much is a $300,000 mortgage per month?

At 4.00%, a 30-year $300,000 mortgage costs $1,432.25 a month in principal and interest. Property tax and insurance add about $243.75 a month on a $375,000 home, for about $1,676.00 in total.

How much income do I need for a $300,000 mortgage?

About $71,828 a year, if housing costs ($1,676.00 a month including estimated tax) stay at 28% of gross income. Other debts lower what lenders will approve under the 36% total-debt guideline.

How much interest will I pay on a $300,000 mortgage?

$215,609 over 30 years at 4.00%. A 15-year loan at 4.00% cuts that to $99,431, but the payment rises to $2,219.06.

What is the payment on a $300,000 mortgage at 3%?

$1,264.81 a month over 30 years, −$167.43 compared with 4.00%. Total interest would be $155,332.

How much faster is a $300,000 mortgage paid off with $100 extra a month?

Adding $100 to every payment pays the loan off in 26 years 6 months instead of 30 years and saves about $28,747 in interest at 4.00%.

Is this rate an offer?

No. 7.03% is the Freddie Mac weekly average for 30-year fixed loans with about 20% down and strong credit. Lenders price each borrower individually; your quote can be higher or lower.

Sources

Numbers on this page last changed September 26, 2026. How they are calculated: methodology.