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kovpas/30-income-calculon.pl

Forked from avar/30-income-calculon.pl
Last active January 16, 2018 14:56
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Calculate your income in The Netherlands with and without a 30% ruling
Raw
30-income-calculon.pl
# To check if this is up-to-date with the tax rates go to
# http://www.expatax.nl/tax_rates_2013.php and see if there's anything
# newer there.
use strict;
use warnings;
use Text::TabularDisplay;
use List::Util qw(sum);
my $start = 30_000 || $ARGV[0];
my $end = 100_000 || $ARGV[1];
my $step = 1_000 || $ARGV[2];
my @data;
for ( my $salary = $start ; $salary <= $end ; $salary += $step ) {
push @data => [
# Your Gross income
eurofy($salary),
# Without 30% ruling
eurofy( $salary - taxes_for($salary) ),
percentify( taxes_for($salary), $salary ),
# With 30% ruling
eurofy( $salary - taxes_for( $salary * .7 ) ),
percentify( taxes_for( $salary * .7 ), $salary ),
];
}
my $table = Text::TabularDisplay->new(
"Gross income\n(before taxes)",
"Net income\n(after taxes)",
"Tax rate",
"Net income\n(after taxes,\nwith 30% ruling)",
"Tax rate",
);
$table->add(@$_) for @data;
print $table->render, "\n";
exit;
sub taxes_for {
my $income = shift;
my @tax_brackets = (
# difference tax rate
[ 19_645 => .37 ],
[ 33_363 - 19_645 => .42 ],
[ 55_991 - 33_363 => .42 ],
[ 0 => .52 ],
);
my $money_left = $income;
my $taxes = 0;
foreach my $bracket (@tax_brackets) {
my ( $progressive_amount, $taxes_for ) = @$bracket;
my $taxable_amount = $money_left;
if ( $taxable_amount > $progressive_amount ) {
$taxable_amount = $progressive_amount if $progressive_amount;
}
$money_left -= $taxable_amount;
$taxes += $taxable_amount * $taxes_for;
last unless $money_left;
}
return $taxes;
}
# From perlfaq5
sub commify {
local $_ = shift;
1 while s/^([-+]?\d+)(\d{3})/$1,$2/;
return $_;
}
sub percentify {
my ( $amount, $total ) = @_;
return sprintf "%.1f%%" => ( ( 100 * $amount ) / $total );
}
sub eurofy {
my ($number) = @_;
# Round it
$number = int $number;
return sprintf( "%s EUR", commify($number) );
}
__DATA__
$ perl 30-income-calculon.pl
+----------------+---------------+----------+------------------+----------+
| Gross income | Net income | Tax rate | Net income | Tax rate |
| (before taxes) | (after taxes) | | (after taxes, | |
| | | | with 30% ruling) | |
+----------------+---------------+----------+------------------+----------+
| 30,000 EUR | 18,382 EUR | 38.7% | 22,162 EUR | 26.1% |
| 31,000 EUR | 18,962 EUR | 38.8% | 22,868 EUR | 26.2% |
| 32,000 EUR | 19,542 EUR | 38.9% | 23,574 EUR | 26.3% |
| 33,000 EUR | 20,122 EUR | 39.0% | 24,280 EUR | 26.4% |
| 34,000 EUR | 20,702 EUR | 39.1% | 24,986 EUR | 26.5% |
| 35,000 EUR | 21,282 EUR | 39.2% | 25,692 EUR | 26.6% |
| 36,000 EUR | 21,862 EUR | 39.3% | 26,398 EUR | 26.7% |
| 37,000 EUR | 22,442 EUR | 39.3% | 27,104 EUR | 26.7% |
| 38,000 EUR | 23,022 EUR | 39.4% | 27,810 EUR | 26.8% |
| 39,000 EUR | 23,602 EUR | 39.5% | 28,516 EUR | 26.9% |
| 40,000 EUR | 24,182 EUR | 39.5% | 29,222 EUR | 26.9% |
| 41,000 EUR | 24,762 EUR | 39.6% | 29,928 EUR | 27.0% |
| 42,000 EUR | 25,342 EUR | 39.7% | 30,634 EUR | 27.1% |
| 43,000 EUR | 25,922 EUR | 39.7% | 31,340 EUR | 27.1% |
| 44,000 EUR | 26,502 EUR | 39.8% | 32,046 EUR | 27.2% |
| 45,000 EUR | 27,082 EUR | 39.8% | 32,752 EUR | 27.2% |
| 46,000 EUR | 27,662 EUR | 39.9% | 33,458 EUR | 27.3% |
| 47,000 EUR | 28,242 EUR | 39.9% | 34,164 EUR | 27.3% |
| 48,000 EUR | 28,822 EUR | 40.0% | 34,870 EUR | 27.4% |
| 49,000 EUR | 29,402 EUR | 40.0% | 35,576 EUR | 27.4% |
| 50,000 EUR | 29,982 EUR | 40.0% | 36,282 EUR | 27.4% |
| 51,000 EUR | 30,562 EUR | 40.1% | 36,988 EUR | 27.5% |
| 52,000 EUR | 31,142 EUR | 40.1% | 37,694 EUR | 27.5% |
| 53,000 EUR | 31,722 EUR | 40.1% | 38,400 EUR | 27.5% |
| 54,000 EUR | 32,302 EUR | 40.2% | 39,106 EUR | 27.6% |
| 55,000 EUR | 32,882 EUR | 40.2% | 39,812 EUR | 27.6% |
| 56,000 EUR | 33,461 EUR | 40.2% | 40,518 EUR | 27.6% |
| 57,000 EUR | 33,941 EUR | 40.5% | 41,224 EUR | 27.7% |
| 58,000 EUR | 34,421 EUR | 40.7% | 41,930 EUR | 27.7% |
| 59,000 EUR | 34,901 EUR | 40.8% | 42,636 EUR | 27.7% |
| 60,000 EUR | 35,381 EUR | 41.0% | 43,342 EUR | 27.8% |
| 61,000 EUR | 35,861 EUR | 41.2% | 44,048 EUR | 27.8% |
| 62,000 EUR | 36,341 EUR | 41.4% | 44,754 EUR | 27.8% |
| 63,000 EUR | 36,821 EUR | 41.6% | 45,460 EUR | 27.8% |
| 64,000 EUR | 37,301 EUR | 41.7% | 46,166 EUR | 27.9% |
| 65,000 EUR | 37,781 EUR | 41.9% | 46,872 EUR | 27.9% |
| 66,000 EUR | 38,261 EUR | 42.0% | 47,578 EUR | 27.9% |
| 67,000 EUR | 38,741 EUR | 42.2% | 48,284 EUR | 27.9% |
| 68,000 EUR | 39,221 EUR | 42.3% | 48,990 EUR | 28.0% |
| 69,000 EUR | 39,701 EUR | 42.5% | 49,696 EUR | 28.0% |
| 70,000 EUR | 40,181 EUR | 42.6% | 50,402 EUR | 28.0% |
| 71,000 EUR | 40,661 EUR | 42.7% | 51,108 EUR | 28.0% |
| 72,000 EUR | 41,141 EUR | 42.9% | 51,814 EUR | 28.0% |
| 73,000 EUR | 41,621 EUR | 43.0% | 52,520 EUR | 28.1% |
| 74,000 EUR | 42,101 EUR | 43.1% | 53,226 EUR | 28.1% |
| 75,000 EUR | 42,581 EUR | 43.2% | 53,932 EUR | 28.1% |
| 76,000 EUR | 43,061 EUR | 43.3% | 54,638 EUR | 28.1% |
| 77,000 EUR | 43,541 EUR | 43.5% | 55,344 EUR | 28.1% |
| 78,000 EUR | 44,021 EUR | 43.6% | 56,050 EUR | 28.1% |
| 79,000 EUR | 44,501 EUR | 43.7% | 56,756 EUR | 28.2% |
| 80,000 EUR | 44,981 EUR | 43.8% | 57,461 EUR | 28.2% |
| 81,000 EUR | 45,461 EUR | 43.9% | 58,097 EUR | 28.3% |
| 82,000 EUR | 45,941 EUR | 44.0% | 58,733 EUR | 28.4% |
| 83,000 EUR | 46,421 EUR | 44.1% | 59,369 EUR | 28.5% |
| 84,000 EUR | 46,901 EUR | 44.2% | 60,005 EUR | 28.6% |
| 85,000 EUR | 47,381 EUR | 44.3% | 60,641 EUR | 28.7% |
| 86,000 EUR | 47,861 EUR | 44.3% | 61,277 EUR | 28.7% |
| 87,000 EUR | 48,341 EUR | 44.4% | 61,913 EUR | 28.8% |
| 88,000 EUR | 48,821 EUR | 44.5% | 62,549 EUR | 28.9% |
| 89,000 EUR | 49,301 EUR | 44.6% | 63,185 EUR | 29.0% |
| 90,000 EUR | 49,781 EUR | 44.7% | 63,821 EUR | 29.1% |
| 91,000 EUR | 50,261 EUR | 44.8% | 64,457 EUR | 29.2% |
| 92,000 EUR | 50,741 EUR | 44.8% | 65,093 EUR | 29.2% |
| 93,000 EUR | 51,221 EUR | 44.9% | 65,729 EUR | 29.3% |
| 94,000 EUR | 51,701 EUR | 45.0% | 66,365 EUR | 29.4% |
| 95,000 EUR | 52,181 EUR | 45.1% | 67,001 EUR | 29.5% |
| 96,000 EUR | 52,661 EUR | 45.1% | 67,637 EUR | 29.5% |
| 97,000 EUR | 53,141 EUR | 45.2% | 68,273 EUR | 29.6% |
| 98,000 EUR | 53,621 EUR | 45.3% | 68,909 EUR | 29.7% |
| 99,000 EUR | 54,101 EUR | 45.4% | 69,545 EUR | 29.8% |
| 100,000 EUR | 54,581 EUR | 45.4% | 70,181 EUR | 29.8% |
+----------------+---------------+----------+------------------+----------+
@stevermeister
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thx!
port it to javascript and create application
https://github.com/stevermeister/dutch-tax-income-calculator

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