Loanweek

$300,000 mortgage at 3.75%

$1,389.35/month principal and interest

$200,165 total interest over 30 years

Principal $300,000 Interest $200,165. 40¢ of every dollar paid goes to interest.

30-year fixed at 3.75%. At this week's 7.03% average the payment would be $2,001.96 (−$612.61 a month at 3.75%).

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% this page $1,389.35−$612.61$200,165
4.00% $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
7.03% this week's average $2,001.96$0.00$420,704

Other terms at 3.75%

TermRateMonthly paymentTotal interestTotal paid
15-year fixed 3.75%$2,181.67$92,700$392,700
20-year fixed 3.75%$1,778.66$126,880$426,880
30-year fixed 3.75%$1,389.35$200,165$500,165

With taxes

Assumes the $300,000 loan is 80% of a $375,000 purchase (20% down, so no PMI).
Principal and interest$1,389.35
Property tax 0.78% a year, estimate$243.75
Homeowners insurancenot included
Monthly total$1,633.10

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 $1,633.10 monthly housing cost at 28% of gross income, you'd need about $69,990 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 11 years 6 months, more of each payment goes to interest than to principal. From payment 139 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 13.PrincipalInterest$0$5k$10k$15k$20kYear 1: principal $5,516, interest $11,156, balance after $294,4841Year 2: principal $5,727, interest $10,945, balance after $288,757Year 3: principal $5,945, interest $10,727, balance after $282,812Year 4: principal $6,172, interest $10,500, balance after $276,640Year 5: principal $6,408, interest $10,265, balance after $270,2325Year 6: principal $6,652, interest $10,020, balance after $263,580Year 7: principal $6,906, interest $9,766, balance after $256,674Year 8: principal $7,169, interest $9,503, balance after $249,505Year 9: principal $7,443, interest $9,229, balance after $242,062Year 10: principal $7,727, interest $8,945, balance after $234,33510Year 11: principal $8,022, interest $8,651, balance after $226,314Year 12: principal $8,328, interest $8,345, balance after $217,986Year 13: principal $8,645, interest $8,027, balance after $209,341Year 14: principal $8,975, interest $7,697, balance after $200,366Year 15: principal $9,318, interest $7,355, balance after $191,04815Year 16: principal $9,673, interest $6,999, balance after $181,375Year 17: principal $10,042, interest $6,630, balance after $171,333Year 18: principal $10,425, interest $6,247, balance after $160,908Year 19: principal $10,823, interest $5,849, balance after $150,085Year 20: principal $11,236, interest $5,436, balance after $138,85020Year 21: principal $11,664, interest $5,008, balance after $127,185Year 22: principal $12,109, interest $4,563, balance after $115,076Year 23: principal $12,571, interest $4,101, balance after $102,504Year 24: principal $13,051, interest $3,621, balance after $89,453Year 25: principal $13,549, interest $3,123, balance after $75,90425Year 26: principal $14,066, interest $2,606, balance after $61,838Year 27: principal $14,603, interest $2,070, balance after $47,236Year 28: principal $15,160, interest $1,513, balance after $32,076Year 29: principal $15,738, interest $934, balance after $16,338Year 30: principal $16,338, interest $334, balance after $030loan year

First 12 months

Amortization schedule for a $300,000 mortgage at 3.75% over 30 years, months 1–12; each payment $1,389.35
MonthPrincipalInterestBalance
1$451.85$937.50$299,548.15
2$453.26$936.09$299,094.89
3$454.68$934.67$298,640.22
4$456.10$933.25$298,184.12
5$457.52$931.83$297,726.60
6$458.95$930.40$297,267.65
7$460.39$928.96$296,807.27
8$461.82$927.52$296,345.44
9$463.27$926.08$295,882.17
10$464.71$924.63$295,417.46
11$466.17$923.18$294,951.29
12$467.62$921.72$294,483.67

Year by year

Totals for each loan year
YearPrincipalInterestBalance at year end
1$5,516$11,156$294,484
2$5,727$10,945$288,757
3$5,945$10,727$282,812
4$6,172$10,500$276,640
5$6,408$10,265$270,232
6$6,652$10,020$263,580
7$6,906$9,766$256,674
8$7,169$9,503$249,505
9$7,443$9,229$242,062
10$7,727$8,945$234,335
11$8,022$8,651$226,314
12$8,328$8,345$217,986
13$8,645$8,027$209,341
14$8,975$7,697$200,366
15$9,318$7,355$191,048
16$9,673$6,999$181,375
17$10,042$6,630$171,333
18$10,425$6,247$160,908
19$10,823$5,849$150,085
20$11,236$5,436$138,850
21$11,664$5,008$127,185
22$12,109$4,563$115,076
23$12,571$4,101$102,504
24$13,051$3,621$89,453
25$13,549$3,123$75,904
26$14,066$2,606$61,838
27$14,603$2,070$47,236
28$15,160$1,513$32,076
29$15,738$934$16,338
30$16,338$334$0
Total$300,000$200,165$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: $294.5kBalance, Year 2: $288.8kBalance, Year 3: $282.8kBalance, Year 4: $276.6kBalance, Year 5: $270.2kBalance, Year 6: $263.6kBalance, Year 7: $256.7kBalance, Year 8: $249.5kBalance, Year 9: $242.1kBalance, Year 10: $234.3kBalance, Year 11: $226.3kBalance, Year 12: $218kBalance, Year 13: $209.3kBalance, Year 14: $200.4kBalance, Year 15: $191kBalance, Year 16: $181.4kBalance, Year 17: $171.3kBalance, Year 18: $160.9kBalance, Year 19: $150.1kBalance, Year 20: $138.8kBalance, Year 21: $127.2kBalance, Year 22: $115.1kBalance, Year 23: $102.5kBalance, Year 24: $89.5kBalance, Year 25: $75.9kBalance, Year 26: $61.8kBalance, Year 27: $47.2kBalance, Year 28: $32.1kBalance, Year 29: $16.3kBalance, Year 30: $0
Full schedule, all 360 payments
Amortization schedule for a $300,000 mortgage at 3.75% over 30 years, every payment
MonthPrincipalInterestBalance
1451.85937.50299,548.15
2453.26936.09299,094.89
3454.68934.67298,640.22
4456.10933.25298,184.12
5457.52931.83297,726.60
6458.95930.40297,267.65
7460.39928.96296,807.27
8461.82927.52296,345.44
9463.27926.08295,882.17
10464.71924.63295,417.46
11466.17923.18294,951.29
12467.62921.72294,483.67
13469.09920.26294,014.58
14470.55918.80293,544.03
15472.02917.33293,072.01
16473.50915.85292,598.51
17474.98914.37292,123.54
18476.46912.89291,647.08
19477.95911.40291,169.13
20479.44909.90290,689.68
21480.94908.41290,208.74
22482.44906.90289,726.30
23483.95905.39289,242.34
24485.46903.88288,756.88
25486.98902.37288,269.90
26488.50900.84287,781.40
27490.03899.32287,291.37
28491.56897.79286,799.80
29493.10896.25286,306.71
30494.64894.71285,812.07
31496.18893.16285,315.88
32497.73891.61284,818.15
33499.29890.06284,318.86
34500.85888.50283,818.01
35502.42886.93283,315.59
36503.99885.36282,811.61
37505.56883.79282,306.05
38507.14882.21281,798.91
39508.73880.62281,290.18
40510.31879.03280,779.87
41511.91877.44280,267.96
42513.51875.84279,754.45
43515.11874.23279,239.33
44516.72872.62278,722.61
45518.34871.01278,204.27
46519.96869.39277,684.31
47521.58867.76277,162.73
48523.21866.13276,639.52
49524.85864.50276,114.67
50526.49862.86275,588.18
51528.13861.21275,060.05
52529.78859.56274,530.26
53531.44857.91273,998.82
54533.10856.25273,465.72
55534.77854.58272,930.96
56536.44852.91272,394.52
57538.11851.23271,856.40
58539.80849.55271,316.61
59541.48847.86270,775.13
60543.17846.17270,231.95
61544.87844.47269,687.08
62546.57842.77269,140.51
63548.28841.06268,592.22
64550.00839.35268,042.23
65551.71837.63267,490.51
66553.44835.91266,937.07
67555.17834.18266,381.90
68556.90832.44265,825.00
69558.64830.70265,266.36
70560.39828.96264,705.97
71562.14827.21264,143.83
72563.90825.45263,579.93
73565.66823.69263,014.27
74567.43821.92262,446.84
75569.20820.15261,877.64
76570.98818.37261,306.66
77572.76816.58260,733.90
78574.55814.79260,159.35
79576.35813.00259,583.00
80578.15811.20259,004.85
81579.96809.39258,424.89
82581.77807.58257,843.12
83583.59805.76257,259.54
84585.41803.94256,674.12
85587.24802.11256,086.88
86589.08800.27255,497.81
87590.92798.43254,906.89
88592.76796.58254,314.13
89594.62794.73253,719.52
90596.47792.87253,123.04
91598.34791.01252,524.70
92600.21789.14251,924.50
93602.08787.26251,322.42
94603.96785.38250,718.45
95605.85783.50250,112.60
96607.74781.60249,504.85
97609.64779.70248,895.21
98611.55777.80248,283.66
99613.46775.89247,670.20
100615.38773.97247,054.82
101617.30772.05246,437.52
102619.23770.12245,818.29
103621.16768.18245,197.13
104623.11766.24244,574.02
105625.05764.29243,948.97
106627.01762.34243,321.96
107628.97760.38242,693.00
108630.93758.42242,062.07
109632.90756.44241,429.16
110634.88754.47240,794.28
111636.86752.48240,157.42
112638.85750.49239,518.56
113640.85748.50238,877.71
114642.85746.49238,234.86
115644.86744.48237,590.00
116646.88742.47236,943.12
117648.90740.45236,294.22
118650.93738.42235,643.29
119652.96736.39234,990.33
120655.00734.34234,335.33
121657.05732.30233,678.28
122659.10730.24233,019.18
123661.16728.18232,358.01
124663.23726.12231,694.79
125665.30724.05231,029.49
126667.38721.97230,362.11
127669.47719.88229,692.64
128671.56717.79229,021.08
129673.66715.69228,347.43
130675.76713.59227,671.67
131677.87711.47226,993.79
132679.99709.36226,313.80
133682.12707.23225,631.69
134684.25705.10224,947.44
135686.39702.96224,261.05
136688.53700.82223,572.52
137690.68698.66222,881.84
138692.84696.51222,189.00
139695.01694.34221,493.99
140697.18692.17220,796.81
141699.36689.99220,097.46
142701.54687.80219,395.92
143703.73685.61218,692.18
144705.93683.41217,986.25
145708.14681.21217,278.11
146710.35678.99216,567.75
147712.57676.77215,855.18
148714.80674.55215,140.38
149717.03672.31214,423.35
150719.27670.07213,704.08
151721.52667.83212,982.55
152723.78665.57212,258.78
153726.04663.31211,532.74
154728.31661.04210,804.43
155730.58658.76210,073.85
156732.87656.48209,340.98
157735.16654.19208,605.83
158737.45651.89207,868.37
159739.76649.59207,128.62
160742.07647.28206,386.55
161744.39644.96205,642.16
162746.72642.63204,895.44
163749.05640.30204,146.39
164751.39637.96203,395.00
165753.74635.61202,641.27
166756.09633.25201,885.17
167758.46630.89201,126.72
168760.83628.52200,365.89
169763.20626.14199,602.69
170765.59623.76198,837.10
171767.98621.37198,069.12
172770.38618.97197,298.74
173772.79616.56196,525.95
174775.20614.14195,750.75
175777.63611.72194,973.12
176780.06609.29194,193.07
177782.49606.85193,410.57
178784.94604.41192,625.63
179787.39601.96191,838.24
180789.85599.49191,048.39
181792.32597.03190,256.07
182794.80594.55189,461.27
183797.28592.07188,663.99
184799.77589.57187,864.22
185802.27587.08187,061.95
186804.78584.57186,257.17
187807.29582.05185,449.88
188809.82579.53184,640.06
189812.35577.00183,827.72
190814.89574.46183,012.83
191817.43571.92182,195.40
192819.99569.36181,375.41
193822.55566.80180,552.87
194825.12564.23179,727.75
195827.70561.65178,900.05
196830.28559.06178,069.76
197832.88556.47177,236.89
198835.48553.87176,401.40
199838.09551.25175,563.31
200840.71548.64174,722.60
201843.34546.01173,879.26
202845.97543.37173,033.29
203848.62540.73172,184.67
204851.27538.08171,333.40
205853.93535.42170,479.47
206856.60532.75169,622.87
207859.28530.07168,763.60
208861.96527.39167,901.64
209864.65524.69167,036.98
210867.36521.99166,169.63
211870.07519.28165,299.56
212872.79516.56164,426.77
213875.51513.83163,551.26
214878.25511.10162,673.01
215880.99508.35161,792.02
216883.75505.60160,908.27
217886.51502.84160,021.76
218889.28500.07159,132.48
219892.06497.29158,240.43
220894.85494.50157,345.58
221897.64491.70156,447.94
222900.45488.90155,547.49
223903.26486.09154,644.23
224906.08483.26153,738.15
225908.92480.43152,829.23
226911.76477.59151,917.48
227914.60474.74151,002.87
228917.46471.88150,085.41
229920.33469.02149,165.08
230923.21466.14148,241.87
231926.09463.26147,315.78
232928.98460.36146,386.80
233931.89457.46145,454.91
234934.80454.55144,520.11
235937.72451.63143,582.39
236940.65448.69142,641.74
237943.59445.76141,698.14
238946.54442.81140,751.60
239949.50439.85139,802.11
240952.47436.88138,849.64
241955.44433.91137,894.20
242958.43430.92136,935.77
243961.42427.92135,974.35
244964.43424.92135,009.92
245967.44421.91134,042.48
246970.46418.88133,072.02
247973.50415.85132,098.52
248976.54412.81131,121.98
249979.59409.76130,142.39
250982.65406.69129,159.74
251985.72403.62128,174.02
252988.80400.54127,185.21
253991.89397.45126,193.32
254994.99394.35125,198.33
255998.10391.24124,200.23
2561,001.22388.13123,199.01
2571,004.35385.00122,194.66
2581,007.49381.86121,187.17
2591,010.64378.71120,176.53
2601,013.80375.55119,162.74
2611,016.96372.38118,145.77
2621,020.14369.21117,125.63
2631,023.33366.02116,102.30
2641,026.53362.82115,075.77
2651,029.73359.61114,046.04
2661,032.95356.39113,013.09
2671,036.18353.17111,976.91
2681,039.42349.93110,937.49
2691,042.67346.68109,894.82
2701,045.93343.42108,848.89
2711,049.19340.15107,799.70
2721,052.47336.87106,747.23
2731,055.76333.59105,691.47
2741,059.06330.29104,632.41
2751,062.37326.98103,570.03
2761,065.69323.66102,504.34
2771,069.02320.33101,435.32
2781,072.36316.99100,362.96
2791,075.71313.6399,287.25
2801,079.07310.2798,208.18
2811,082.45306.9097,125.73
2821,085.83303.5296,039.90
2831,089.22300.1294,950.68
2841,092.63296.7293,858.05
2851,096.04293.3192,762.01
2861,099.47289.8891,662.55
2871,102.90286.4590,559.65
2881,106.35283.0089,453.30
2891,109.81279.5488,343.49
2901,113.27276.0787,230.22
2911,116.75272.5986,113.47
2921,120.24269.1084,993.22
2931,123.74265.6083,869.48
2941,127.25262.0982,742.23
2951,130.78258.5781,611.45
2961,134.31255.0480,477.14
2971,137.86251.4979,339.28
2981,141.41247.9478,197.87
2991,144.98244.3777,052.89
3001,148.56240.7975,904.34
3011,152.15237.2074,752.19
3021,155.75233.6073,596.44
3031,159.36229.9972,437.09
3041,162.98226.3771,274.11
3051,166.62222.7370,107.49
3061,170.26219.0968,937.23
3071,173.92215.4367,763.31
3081,177.59211.7666,585.73
3091,181.27208.0865,404.46
3101,184.96204.3964,219.50
3111,188.66200.6963,030.84
3121,192.38196.9761,838.46
3131,196.10193.2560,642.36
3141,199.84189.5159,442.52
3151,203.59185.7658,238.94
3161,207.35182.0057,031.58
3171,211.12178.2255,820.46
3181,214.91174.4454,605.55
3191,218.70170.6453,386.85
3201,222.51166.8352,164.34
3211,226.33163.0150,938.00
3221,230.17159.1849,707.84
3231,234.01155.3448,473.83
3241,237.87151.4847,235.96
3251,241.73147.6145,994.23
3261,245.61143.7344,748.61
3271,249.51139.8443,499.11
3281,253.41135.9342,245.69
3291,257.33132.0240,988.36
3301,261.26128.0939,727.11
3311,265.20124.1538,461.91
3321,269.15120.1937,192.75
3331,273.12116.2335,919.63
3341,277.10112.2534,642.54
3351,281.09108.2633,361.45
3361,285.09104.2532,076.36
3371,289.11100.2430,787.25
3381,293.1496.2129,494.11
3391,297.1892.1728,196.93
3401,301.2388.1226,895.70
3411,305.3084.0525,590.40
3421,309.3879.9724,281.03
3431,313.4775.8822,967.56
3441,317.5771.7721,649.99
3451,321.6967.6620,328.29
3461,325.8263.5319,002.47
3471,329.9659.3817,672.51
3481,334.1255.2316,338.39
3491,338.2951.0615,000.10
3501,342.4746.8813,657.63
3511,346.6742.6812,310.96
3521,350.8838.4710,960.09
3531,355.1034.259,604.99
3541,359.3330.028,245.66
3551,363.5825.776,882.08
3561,367.8421.515,514.24
3571,372.1117.234,142.13
3581,376.4012.942,765.72
3591,380.708.641,385.02
3601,385.024.330.00

Questions

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

At 3.75%, a 30-year $300,000 mortgage costs $1,389.35 a month in principal and interest. Property tax and insurance add about $243.75 a month on a $375,000 home, for about $1,633.10 in total.

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

About $69,990 a year, if housing costs ($1,633.10 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?

$200,165 over 30 years at 3.75%. A 15-year loan at 3.75% cuts that to $92,700, but the payment rises to $2,181.67.

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

$1,264.81 a month over 30 years, −$124.53 compared with 3.75%. 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 7 months instead of 30 years and saves about $26,255 in interest at 3.75%.

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.