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1<!DOCTYPE html>
2<html>
3<head>
4<script src="tax.js"></script>
5<script src="tax_ui.js"></script>
6<style>
7 td { padding: .5em; vertical-align: top}
8 textarea { height: 12em; }
9 input { width: 7em }
10 .output { padding: 1em; background-color: #eee; border: thin solid #888; width: max-content; }
11 .privacy_policy { margin-top: 5em; }
12</style>
13</head>
14<body onload="calculate()">
15<h1>Inverse income tax tool</h1>
16<p>What before-tax salary is needed to provide a specified after-tax salary?</p>
17
18<form>
19<table>
20<tr>
21<td>
22Federal deductible<br/><input id="deductible_1" value="24000" onchange="calculate()" oninput="calculate()"/>
23</td>
24<td>
25State deductible<br/><input id="deductible_2" value="8258" onchange="calculate()" oninput="calculate()"/>
26</td>
27</tr>
28<tr>
29<td>
30Federal tax table<br/>
31<textarea id="tax_table_1" onchange="calculate()" oninput="calculate()"> 0 10
32 18651 15
33 75901 25
34153101 28
35233351 33
36416701 35
37470001 39.6</textarea>
38</td>
39<td>
40State tax table<br/>
41<textarea id="tax_table_2" onchange="calculate()" oninput="calculate()"> 0 1
42 16030 2
43 38002 4
44 59978 6
45 83258 8
46 105224 9.3
47 537500 10.3
48 644998 11.3
491000000 12.3
501074996 13.3</textarea>
51<br/>(Initial table is California's)
52</td>
53</tr>
54<tr>
55<td colspan="2">
56Desired after-tax salary</br>
57<input id="after_tax" value="100000" onchange="calculate()" oninput="calculate()">
58</td></tr>
59</table>
60</form>
61
62<p class="output">
63 <strong><span id="before_tax"></span> before tax</strong>
64 - <span id="tax_1"></span> federal tax
65 - <span id="tax_2"></span> state tax
66 = <span id="after_tax_verification"></span> after tax.
67</p>
68
69<p class="privacy_policy">Privacy policy: All calculations are client-side; no figures are sent to any server.</p>
70</body>
71</html>