HELOC Calculator

Estimate interest-only HELOC payments followed by amortizing repayment of a fixed drawn balance.

Results

Monthly interest-only draw payment

$333.33

Draw-period interest

$20,000

Scheduled monthly payment

$477.83

Payments until payoff

180 months

Total principal and interest

$86,008.69

Total interest

$36,008.69

Amortization schedule (CSV)

Month,Payment,Interest,Principal,Balance
1,477.83,333.33,144.49,49855.51
2,477.83,332.37,145.46,49710.05
3,477.83,331.40,146.43,49563.63
4,477.83,330.42,147.40,49416.22
5,477.83,329.44,148.38,49267.84
6,477.83,328.45,149.37,49118.47
7,477.83,327.46,150.37,48968.10
8,477.83,326.45,151.37,48816.72
9,477.83,325.44,152.38,48664.34
10,477.83,324.43,153.40,48510.95
11,477.83,323.41,154.42,48356.53
12,477.83,322.38,155.45,48201.08
13,477.83,321.34,156.49,48044.59
14,477.83,320.30,157.53,47887.06
15,477.83,319.25,158.58,47728.48
16,477.83,318.19,159.64,47568.85
17,477.83,317.13,160.70,47408.15
18,477.83,316.05,161.77,47246.37
19,477.83,314.98,162.85,47083.52
20,477.83,313.89,163.94,46919.59
21,477.83,312.80,165.03,46754.56
22,477.83,311.70,166.13,46588.43
23,477.83,310.59,167.24,46421.19
24,477.83,309.47,168.35,46252.84
25,477.83,308.35,169.47,46083.37
26,477.83,307.22,170.60,45912.77
27,477.83,306.09,171.74,45741.02
28,477.83,304.94,172.89,45568.14
29,477.83,303.79,174.04,45394.10
30,477.83,302.63,175.20,45218.90
31,477.83,301.46,176.37,45042.54
32,477.83,300.28,177.54,44864.99
33,477.83,299.10,178.73,44686.27
34,477.83,297.91,179.92,44506.35
35,477.83,296.71,181.12,44325.23
36,477.83,295.50,182.32,44142.91
37,477.83,294.29,183.54,43959.37
38,477.83,293.06,184.76,43774.60
39,477.83,291.83,186.00,43588.61
40,477.83,290.59,187.24,43401.37
41,477.83,289.34,188.48,43212.89
42,477.83,288.09,189.74,43023.15
43,477.83,286.82,191.01,42832.14
44,477.83,285.55,192.28,42639.87
45,477.83,284.27,193.56,42446.31
46,477.83,282.98,194.85,42251.46
47,477.83,281.68,196.15,42055.31
48,477.83,280.37,197.46,41857.85
49,477.83,279.05,198.77,41659.07
50,477.83,277.73,200.10,41458.98
51,477.83,276.39,201.43,41257.54
52,477.83,275.05,202.78,41054.77
53,477.83,273.70,204.13,40850.64
54,477.83,272.34,205.49,40645.15
55,477.83,270.97,206.86,40438.29
56,477.83,269.59,208.24,40230.06
57,477.83,268.20,209.63,40020.43
58,477.83,266.80,211.02,39809.41
59,477.83,265.40,212.43,39596.98
60,477.83,263.98,213.85,39383.13
61,477.83,262.55,215.27,39167.86
62,477.83,261.12,216.71,38951.15
63,477.83,259.67,218.15,38733.00
64,477.83,258.22,219.61,38513.39
65,477.83,256.76,221.07,38292.32
66,477.83,255.28,222.54,38069.78
67,477.83,253.80,224.03,37845.75
68,477.83,252.31,225.52,37620.23
69,477.83,250.80,227.02,37393.21
70,477.83,249.29,228.54,37164.67
71,477.83,247.76,230.06,36934.61
72,477.83,246.23,231.60,36703.01
73,477.83,244.69,233.14,36469.87
74,477.83,243.13,234.69,36235.18
75,477.83,241.57,236.26,35998.92
76,477.83,239.99,237.83,35761.09
77,477.83,238.41,239.42,35521.67
78,477.83,236.81,241.01,35280.65
79,477.83,235.20,242.62,35038.03
80,477.83,233.59,244.24,34793.79
81,477.83,231.96,245.87,34547.93
82,477.83,230.32,247.51,34300.42
83,477.83,228.67,249.16,34051.26
84,477.83,227.01,250.82,33800.44
85,477.83,225.34,252.49,33547.95
86,477.83,223.65,254.17,33293.78
87,477.83,221.96,255.87,33037.91
88,477.83,220.25,257.57,32780.34
89,477.83,218.54,259.29,32521.05
90,477.83,216.81,261.02,32260.03
91,477.83,215.07,262.76,31997.27
92,477.83,213.32,264.51,31732.76
93,477.83,211.55,266.27,31466.49
94,477.83,209.78,268.05,31198.44
95,477.83,207.99,269.84,30928.60
96,477.83,206.19,271.64,30656.97
97,477.83,204.38,273.45,30383.52
98,477.83,202.56,275.27,30108.25
99,477.83,200.72,277.10,29831.15
100,477.83,198.87,278.95,29552.19
101,477.83,197.01,280.81,29271.38
102,477.83,195.14,282.68,28988.70
103,477.83,193.26,284.57,28704.13
104,477.83,191.36,286.47,28417.67
105,477.83,189.45,288.37,28129.29
106,477.83,187.53,290.30,27838.99
107,477.83,185.59,292.23,27546.76
108,477.83,183.65,294.18,27252.58
109,477.83,181.68,296.14,26956.44
110,477.83,179.71,298.12,26658.32
111,477.83,177.72,300.10,26358.22
112,477.83,175.72,302.10,26056.11
113,477.83,173.71,304.12,25751.99
114,477.83,171.68,306.15,25445.85
115,477.83,169.64,308.19,25137.66
116,477.83,167.58,310.24,24827.42
117,477.83,165.52,312.31,24515.11
118,477.83,163.43,314.39,24200.72
119,477.83,161.34,316.49,23884.23
120,477.83,159.23,318.60,23565.63
121,477.83,157.10,320.72,23244.91
122,477.83,154.97,322.86,22922.05
123,477.83,152.81,325.01,22597.04
124,477.83,150.65,327.18,22269.86
125,477.83,148.47,329.36,21940.50
126,477.83,146.27,331.56,21608.94
127,477.83,144.06,333.77,21275.18
128,477.83,141.83,335.99,20939.18
129,477.83,139.59,338.23,20600.95
130,477.83,137.34,340.49,20260.47
131,477.83,135.07,342.76,19917.71
132,477.83,132.78,345.04,19572.67
133,477.83,130.48,347.34,19225.33
134,477.83,128.17,349.66,18875.67
135,477.83,125.84,351.99,18523.68
136,477.83,123.49,354.33,18169.35
137,477.83,121.13,356.70,17812.65
138,477.83,118.75,359.08,17453.57
139,477.83,116.36,361.47,17092.11
140,477.83,113.95,363.88,16728.23
141,477.83,111.52,366.30,16361.92
142,477.83,109.08,368.75,15993.18
143,477.83,106.62,371.20,15621.97
144,477.83,104.15,373.68,15248.29
145,477.83,101.66,376.17,14872.12
146,477.83,99.15,378.68,14493.44
147,477.83,96.62,381.20,14112.24
148,477.83,94.08,383.74,13728.49
149,477.83,91.52,386.30,13342.19
150,477.83,88.95,388.88,12953.31
151,477.83,86.36,391.47,12561.84
152,477.83,83.75,394.08,12167.76
153,477.83,81.12,396.71,11771.06
154,477.83,78.47,399.35,11371.70
155,477.83,75.81,402.01,10969.69
156,477.83,73.13,404.69,10564.99
157,477.83,70.43,407.39,10157.60
158,477.83,67.72,410.11,9747.49
159,477.83,64.98,412.84,9334.65
160,477.83,62.23,415.60,8919.05
161,477.83,59.46,418.37,8500.69
162,477.83,56.67,421.15,8079.53
163,477.83,53.86,423.96,7655.57
164,477.83,51.04,426.79,7228.78
165,477.83,48.19,429.63,6799.15
166,477.83,45.33,432.50,6366.65
167,477.83,42.44,435.38,5931.27
168,477.83,39.54,438.28,5492.98
169,477.83,36.62,441.21,5051.78
170,477.83,33.68,444.15,4607.63
171,477.83,30.72,447.11,4160.52
172,477.83,27.74,450.09,3710.43
173,477.83,24.74,453.09,3257.34
174,477.83,21.72,456.11,2801.23
175,477.83,18.67,459.15,2342.08
176,477.83,15.61,462.21,1879.87
177,477.83,12.53,465.29,1414.58
178,477.83,9.43,468.40,946.18
179,477.83,6.31,471.52,474.66
180,477.83,3.16,474.66,0.00

How It Works

Draw-period interest=balance×annual rate/12. Repayment uses the entered amortizing term.

Assumes no new draws or rate changes. A real HELOC typically has a variable rate and payments can change.

Reference Sources

CFPB: mortgage principal and interest

FAQs

How does this calculator work?

Draw-period interest=balance×annual rate/12. Repayment uses the entered amortizing term.

What assumptions should I check?

Assumes no new draws or rate changes. A real HELOC typically has a variable rate and payments can change.