avar/30-income-calculon.pl

## 30-income-calculon.pl
# To check if this is up-to-date with the tax rates go to
# http://www.expatax.nl/tax-rates-2016.php and see if there's anything
# newer there.
#
# I make no guarantees that any of this is correct. I calculated this
# at the time and have been updating it when new tax rates come along
# because people keep finding this useful.
#
# There's also an interactive JS version of this created by
# @stevermeister at
# https://github.com/stevermeister/dutch-tax-income-calculator
# although the two seem to show conflicting values and I have no idea
# which one is correct...
use strict;
use warnings;
use Text::TabularDisplay;
use List::Util qw(sum);

my $start = 30_000  || $ARGV[0];
my $end   = 200_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_922          => .3655 ],
        [ 66_421 - 19_922 => .4040 ],
        [ 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     | 18,646 EUR    | 37.8%    | 22,282 EUR       | 25.7%    |
| 31,000 EUR     | 19,242 EUR    | 37.9%    | 23,000 EUR       | 25.8%    |
| 32,000 EUR     | 19,838 EUR    | 38.0%    | 23,717 EUR       | 25.9%    |
| 33,000 EUR     | 20,434 EUR    | 38.1%    | 24,434 EUR       | 26.0%    |
| 34,000 EUR     | 21,030 EUR    | 38.1%    | 25,151 EUR       | 26.0%    |
| 35,000 EUR     | 21,626 EUR    | 38.2%    | 25,868 EUR       | 26.1%    |
| 36,000 EUR     | 22,222 EUR    | 38.3%    | 26,586 EUR       | 26.1%    |
| 37,000 EUR     | 22,818 EUR    | 38.3%    | 27,303 EUR       | 26.2%    |
| 38,000 EUR     | 23,414 EUR    | 38.4%    | 28,020 EUR       | 26.3%    |
| 39,000 EUR     | 24,010 EUR    | 38.4%    | 28,737 EUR       | 26.3%    |
| 40,000 EUR     | 24,606 EUR    | 38.5%    | 29,454 EUR       | 26.4%    |
| 41,000 EUR     | 25,202 EUR    | 38.5%    | 30,172 EUR       | 26.4%    |
| 42,000 EUR     | 25,798 EUR    | 38.6%    | 30,889 EUR       | 26.5%    |
| 43,000 EUR     | 26,394 EUR    | 38.6%    | 31,606 EUR       | 26.5%    |
| 44,000 EUR     | 26,990 EUR    | 38.7%    | 32,323 EUR       | 26.5%    |
| 45,000 EUR     | 27,586 EUR    | 38.7%    | 33,040 EUR       | 26.6%    |
| 46,000 EUR     | 28,182 EUR    | 38.7%    | 33,758 EUR       | 26.6%    |
| 47,000 EUR     | 28,778 EUR    | 38.8%    | 34,475 EUR       | 26.6%    |
| 48,000 EUR     | 29,374 EUR    | 38.8%    | 35,192 EUR       | 26.7%    |
| 49,000 EUR     | 29,970 EUR    | 38.8%    | 35,909 EUR       | 26.7%    |
| 50,000 EUR     | 30,566 EUR    | 38.9%    | 36,626 EUR       | 26.7%    |
| 51,000 EUR     | 31,162 EUR    | 38.9%    | 37,344 EUR       | 26.8%    |
| 52,000 EUR     | 31,758 EUR    | 38.9%    | 38,061 EUR       | 26.8%    |
| 53,000 EUR     | 32,354 EUR    | 39.0%    | 38,778 EUR       | 26.8%    |
| 54,000 EUR     | 32,950 EUR    | 39.0%    | 39,495 EUR       | 26.9%    |
| 55,000 EUR     | 33,546 EUR    | 39.0%    | 40,212 EUR       | 26.9%    |
| 56,000 EUR     | 34,142 EUR    | 39.0%    | 40,930 EUR       | 26.9%    |
| 57,000 EUR     | 34,738 EUR    | 39.1%    | 41,647 EUR       | 26.9%    |
| 58,000 EUR     | 35,334 EUR    | 39.1%    | 42,364 EUR       | 27.0%    |
| 59,000 EUR     | 35,930 EUR    | 39.1%    | 43,081 EUR       | 27.0%    |
| 60,000 EUR     | 36,526 EUR    | 39.1%    | 43,798 EUR       | 27.0%    |
| 61,000 EUR     | 37,122 EUR    | 39.1%    | 44,516 EUR       | 27.0%    |
| 62,000 EUR     | 37,718 EUR    | 39.2%    | 45,233 EUR       | 27.0%    |
| 63,000 EUR     | 38,314 EUR    | 39.2%    | 45,950 EUR       | 27.1%    |
| 64,000 EUR     | 38,910 EUR    | 39.2%    | 46,667 EUR       | 27.1%    |
| 65,000 EUR     | 39,506 EUR    | 39.2%    | 47,384 EUR       | 27.1%    |
| 66,000 EUR     | 40,102 EUR    | 39.2%    | 48,102 EUR       | 27.1%    |
| 67,000 EUR     | 40,631 EUR    | 39.4%    | 48,819 EUR       | 27.1%    |
| 68,000 EUR     | 41,111 EUR    | 39.5%    | 49,536 EUR       | 27.2%    |
| 69,000 EUR     | 41,591 EUR    | 39.7%    | 50,253 EUR       | 27.2%    |
| 70,000 EUR     | 42,071 EUR    | 39.9%    | 50,970 EUR       | 27.2%    |
| 71,000 EUR     | 42,551 EUR    | 40.1%    | 51,688 EUR       | 27.2%    |
| 72,000 EUR     | 43,031 EUR    | 40.2%    | 52,405 EUR       | 27.2%    |
| 73,000 EUR     | 43,511 EUR    | 40.4%    | 53,122 EUR       | 27.2%    |
| 74,000 EUR     | 43,991 EUR    | 40.6%    | 53,839 EUR       | 27.2%    |
| 75,000 EUR     | 44,471 EUR    | 40.7%    | 54,556 EUR       | 27.3%    |
| 76,000 EUR     | 44,951 EUR    | 40.9%    | 55,274 EUR       | 27.3%    |
| 77,000 EUR     | 45,431 EUR    | 41.0%    | 55,991 EUR       | 27.3%    |
| 78,000 EUR     | 45,911 EUR    | 41.1%    | 56,708 EUR       | 27.3%    |
| 79,000 EUR     | 46,391 EUR    | 41.3%    | 57,425 EUR       | 27.3%    |
| 80,000 EUR     | 46,871 EUR    | 41.4%    | 58,142 EUR       | 27.3%    |
| 81,000 EUR     | 47,351 EUR    | 41.5%    | 58,860 EUR       | 27.3%    |
| 82,000 EUR     | 47,831 EUR    | 41.7%    | 59,577 EUR       | 27.3%    |
| 83,000 EUR     | 48,311 EUR    | 41.8%    | 60,294 EUR       | 27.4%    |
| 84,000 EUR     | 48,791 EUR    | 41.9%    | 61,011 EUR       | 27.4%    |
| 85,000 EUR     | 49,271 EUR    | 42.0%    | 61,728 EUR       | 27.4%    |
| 86,000 EUR     | 49,751 EUR    | 42.1%    | 62,446 EUR       | 27.4%    |
| 87,000 EUR     | 50,231 EUR    | 42.3%    | 63,163 EUR       | 27.4%    |
| 88,000 EUR     | 50,711 EUR    | 42.4%    | 63,880 EUR       | 27.4%    |
| 89,000 EUR     | 51,191 EUR    | 42.5%    | 64,597 EUR       | 27.4%    |
| 90,000 EUR     | 51,671 EUR    | 42.6%    | 65,314 EUR       | 27.4%    |
| 91,000 EUR     | 52,151 EUR    | 42.7%    | 66,032 EUR       | 27.4%    |
| 92,000 EUR     | 52,631 EUR    | 42.8%    | 66,749 EUR       | 27.4%    |
| 93,000 EUR     | 53,111 EUR    | 42.9%    | 67,466 EUR       | 27.5%    |
| 94,000 EUR     | 53,591 EUR    | 43.0%    | 68,183 EUR       | 27.5%    |
| 95,000 EUR     | 54,071 EUR    | 43.1%    | 68,891 EUR       | 27.5%    |
| 96,000 EUR     | 54,551 EUR    | 43.2%    | 69,527 EUR       | 27.6%    |
| 97,000 EUR     | 55,031 EUR    | 43.3%    | 70,163 EUR       | 27.7%    |
| 98,000 EUR     | 55,511 EUR    | 43.4%    | 70,799 EUR       | 27.8%    |
| 99,000 EUR     | 55,991 EUR    | 43.4%    | 71,435 EUR       | 27.8%    |
| 100,000 EUR    | 56,471 EUR    | 43.5%    | 72,071 EUR       | 27.9%    |
| 101,000 EUR    | 56,951 EUR    | 43.6%    | 72,707 EUR       | 28.0%    |
| 102,000 EUR    | 57,431 EUR    | 43.7%    | 73,343 EUR       | 28.1%    |
| 103,000 EUR    | 57,911 EUR    | 43.8%    | 73,979 EUR       | 28.2%    |
| 104,000 EUR    | 58,391 EUR    | 43.9%    | 74,615 EUR       | 28.3%    |
| 105,000 EUR    | 58,871 EUR    | 43.9%    | 75,251 EUR       | 28.3%    |
| 106,000 EUR    | 59,351 EUR    | 44.0%    | 75,887 EUR       | 28.4%    |
| 107,000 EUR    | 59,831 EUR    | 44.1%    | 76,523 EUR       | 28.5%    |
| 108,000 EUR    | 60,311 EUR    | 44.2%    | 77,159 EUR       | 28.6%    |
| 109,000 EUR    | 60,791 EUR    | 44.2%    | 77,795 EUR       | 28.6%    |
| 110,000 EUR    | 61,271 EUR    | 44.3%    | 78,431 EUR       | 28.7%    |
| 111,000 EUR    | 61,751 EUR    | 44.4%    | 79,067 EUR       | 28.8%    |
| 112,000 EUR    | 62,231 EUR    | 44.4%    | 79,703 EUR       | 28.8%    |
| 113,000 EUR    | 62,711 EUR    | 44.5%    | 80,339 EUR       | 28.9%    |
| 114,000 EUR    | 63,191 EUR    | 44.6%    | 80,975 EUR       | 29.0%    |
| 115,000 EUR    | 63,671 EUR    | 44.6%    | 81,611 EUR       | 29.0%    |
| 116,000 EUR    | 64,151 EUR    | 44.7%    | 82,247 EUR       | 29.1%    |
| 117,000 EUR    | 64,631 EUR    | 44.8%    | 82,883 EUR       | 29.2%    |
| 118,000 EUR    | 65,111 EUR    | 44.8%    | 83,519 EUR       | 29.2%    |
| 119,000 EUR    | 65,591 EUR    | 44.9%    | 84,155 EUR       | 29.3%    |
| 120,000 EUR    | 66,071 EUR    | 44.9%    | 84,791 EUR       | 29.3%    |
| 121,000 EUR    | 66,551 EUR    | 45.0%    | 85,427 EUR       | 29.4%    |
| 122,000 EUR    | 67,031 EUR    | 45.1%    | 86,063 EUR       | 29.5%    |
| 123,000 EUR    | 67,511 EUR    | 45.1%    | 86,699 EUR       | 29.5%    |
| 124,000 EUR    | 67,991 EUR    | 45.2%    | 87,335 EUR       | 29.6%    |
| 125,000 EUR    | 68,471 EUR    | 45.2%    | 87,971 EUR       | 29.6%    |
| 126,000 EUR    | 68,951 EUR    | 45.3%    | 88,607 EUR       | 29.7%    |
| 127,000 EUR    | 69,431 EUR    | 45.3%    | 89,243 EUR       | 29.7%    |
| 128,000 EUR    | 69,911 EUR    | 45.4%    | 89,879 EUR       | 29.8%    |
| 129,000 EUR    | 70,391 EUR    | 45.4%    | 90,515 EUR       | 29.8%    |
| 130,000 EUR    | 70,871 EUR    | 45.5%    | 91,151 EUR       | 29.9%    |
| 131,000 EUR    | 71,351 EUR    | 45.5%    | 91,787 EUR       | 29.9%    |
| 132,000 EUR    | 71,831 EUR    | 45.6%    | 92,423 EUR       | 30.0%    |
| 133,000 EUR    | 72,311 EUR    | 45.6%    | 93,059 EUR       | 30.0%    |
| 134,000 EUR    | 72,791 EUR    | 45.7%    | 93,695 EUR       | 30.1%    |
| 135,000 EUR    | 73,271 EUR    | 45.7%    | 94,331 EUR       | 30.1%    |
| 136,000 EUR    | 73,751 EUR    | 45.8%    | 94,967 EUR       | 30.2%    |
| 137,000 EUR    | 74,231 EUR    | 45.8%    | 95,603 EUR       | 30.2%    |
| 138,000 EUR    | 74,711 EUR    | 45.9%    | 96,239 EUR       | 30.3%    |
| 139,000 EUR    | 75,191 EUR    | 45.9%    | 96,875 EUR       | 30.3%    |
| 140,000 EUR    | 75,671 EUR    | 45.9%    | 97,511 EUR       | 30.3%    |
| 141,000 EUR    | 76,151 EUR    | 46.0%    | 98,147 EUR       | 30.4%    |
| 142,000 EUR    | 76,631 EUR    | 46.0%    | 98,783 EUR       | 30.4%    |
| 143,000 EUR    | 77,111 EUR    | 46.1%    | 99,419 EUR       | 30.5%    |
| 144,000 EUR    | 77,591 EUR    | 46.1%    | 100,055 EUR      | 30.5%    |
| 145,000 EUR    | 78,071 EUR    | 46.2%    | 100,691 EUR      | 30.6%    |
| 146,000 EUR    | 78,551 EUR    | 46.2%    | 101,327 EUR      | 30.6%    |
| 147,000 EUR    | 79,031 EUR    | 46.2%    | 101,963 EUR      | 30.6%    |
| 148,000 EUR    | 79,511 EUR    | 46.3%    | 102,599 EUR      | 30.7%    |
| 149,000 EUR    | 79,991 EUR    | 46.3%    | 103,235 EUR      | 30.7%    |
| 150,000 EUR    | 80,471 EUR    | 46.4%    | 103,871 EUR      | 30.8%    |
| 151,000 EUR    | 80,951 EUR    | 46.4%    | 104,507 EUR      | 30.8%    |
| 152,000 EUR    | 81,431 EUR    | 46.4%    | 105,143 EUR      | 30.8%    |
| 153,000 EUR    | 81,911 EUR    | 46.5%    | 105,779 EUR      | 30.9%    |
| 154,000 EUR    | 82,391 EUR    | 46.5%    | 106,415 EUR      | 30.9%    |
| 155,000 EUR    | 82,871 EUR    | 46.5%    | 107,051 EUR      | 30.9%    |
| 156,000 EUR    | 83,351 EUR    | 46.6%    | 107,687 EUR      | 31.0%    |
| 157,000 EUR    | 83,831 EUR    | 46.6%    | 108,323 EUR      | 31.0%    |
| 158,000 EUR    | 84,311 EUR    | 46.6%    | 108,959 EUR      | 31.0%    |
| 159,000 EUR    | 84,791 EUR    | 46.7%    | 109,595 EUR      | 31.1%    |
| 160,000 EUR    | 85,271 EUR    | 46.7%    | 110,231 EUR      | 31.1%    |
| 161,000 EUR    | 85,751 EUR    | 46.7%    | 110,867 EUR      | 31.1%    |
| 162,000 EUR    | 86,231 EUR    | 46.8%    | 111,503 EUR      | 31.2%    |
| 163,000 EUR    | 86,711 EUR    | 46.8%    | 112,139 EUR      | 31.2%    |
| 164,000 EUR    | 87,191 EUR    | 46.8%    | 112,775 EUR      | 31.2%    |
| 165,000 EUR    | 87,671 EUR    | 46.9%    | 113,411 EUR      | 31.3%    |
| 166,000 EUR    | 88,151 EUR    | 46.9%    | 114,047 EUR      | 31.3%    |
| 167,000 EUR    | 88,631 EUR    | 46.9%    | 114,683 EUR      | 31.3%    |
| 168,000 EUR    | 89,111 EUR    | 47.0%    | 115,319 EUR      | 31.4%    |
| 169,000 EUR    | 89,591 EUR    | 47.0%    | 115,955 EUR      | 31.4%    |
| 170,000 EUR    | 90,071 EUR    | 47.0%    | 116,591 EUR      | 31.4%    |
| 171,000 EUR    | 90,551 EUR    | 47.0%    | 117,227 EUR      | 31.4%    |
| 172,000 EUR    | 91,031 EUR    | 47.1%    | 117,863 EUR      | 31.5%    |
| 173,000 EUR    | 91,511 EUR    | 47.1%    | 118,499 EUR      | 31.5%    |
| 174,000 EUR    | 91,991 EUR    | 47.1%    | 119,135 EUR      | 31.5%    |
| 175,000 EUR    | 92,471 EUR    | 47.2%    | 119,771 EUR      | 31.6%    |
| 176,000 EUR    | 92,951 EUR    | 47.2%    | 120,407 EUR      | 31.6%    |
| 177,000 EUR    | 93,431 EUR    | 47.2%    | 121,043 EUR      | 31.6%    |
| 178,000 EUR    | 93,911 EUR    | 47.2%    | 121,679 EUR      | 31.6%    |
| 179,000 EUR    | 94,391 EUR    | 47.3%    | 122,315 EUR      | 31.7%    |
| 180,000 EUR    | 94,871 EUR    | 47.3%    | 122,951 EUR      | 31.7%    |
| 181,000 EUR    | 95,351 EUR    | 47.3%    | 123,587 EUR      | 31.7%    |
| 182,000 EUR    | 95,831 EUR    | 47.3%    | 124,223 EUR      | 31.7%    |
| 183,000 EUR    | 96,311 EUR    | 47.4%    | 124,859 EUR      | 31.8%    |
| 184,000 EUR    | 96,791 EUR    | 47.4%    | 125,495 EUR      | 31.8%    |
| 185,000 EUR    | 97,271 EUR    | 47.4%    | 126,131 EUR      | 31.8%    |
| 186,000 EUR    | 97,751 EUR    | 47.4%    | 126,767 EUR      | 31.8%    |
| 187,000 EUR    | 98,231 EUR    | 47.5%    | 127,403 EUR      | 31.9%    |
| 188,000 EUR    | 98,711 EUR    | 47.5%    | 128,039 EUR      | 31.9%    |
| 189,000 EUR    | 99,191 EUR    | 47.5%    | 128,675 EUR      | 31.9%    |
| 190,000 EUR    | 99,671 EUR    | 47.5%    | 129,311 EUR      | 31.9%    |
| 191,000 EUR    | 100,151 EUR   | 47.6%    | 129,947 EUR      | 32.0%    |
| 192,000 EUR    | 100,631 EUR   | 47.6%    | 130,583 EUR      | 32.0%    |
| 193,000 EUR    | 101,111 EUR   | 47.6%    | 131,219 EUR      | 32.0%    |
| 194,000 EUR    | 101,591 EUR   | 47.6%    | 131,855 EUR      | 32.0%    |
| 195,000 EUR    | 102,071 EUR   | 47.7%    | 132,491 EUR      | 32.1%    |
| 196,000 EUR    | 102,551 EUR   | 47.7%    | 133,127 EUR      | 32.1%    |
| 197,000 EUR    | 103,031 EUR   | 47.7%    | 133,763 EUR      | 32.1%    |
| 198,000 EUR    | 103,511 EUR   | 47.7%    | 134,399 EUR      | 32.1%    |
| 199,000 EUR    | 103,991 EUR   | 47.7%    | 135,035 EUR      | 32.1%    |
| 200,000 EUR    | 104,471 EUR   | 47.8%    | 135,671 EUR      | 32.2%    |
+----------------+---------------+----------+------------------+----------+
	# To check if this is up-to-date with the tax rates go to
	# http://www.expatax.nl/tax-rates-2016.php and see if there's anything
	# newer there.
	#
	# I make no guarantees that any of this is correct. I calculated this
	# at the time and have been updating it when new tax rates come along
	# because people keep finding this useful.
	#
	# There's also an interactive JS version of this created by
	# @stevermeister at
	# https://github.com/stevermeister/dutch-tax-income-calculator
	# although the two seem to show conflicting values and I have no idea
	# which one is correct...
	use strict;
	use warnings;
	use Text::TabularDisplay;
	use List::Util qw(sum);

	my $start = 30_000 \|\| $ARGV[0];
	my $end = 200_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_922 => .3655 ],
	[ 66_421 - 19_922 => .4040 ],
	[ 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 \| 18,646 EUR \| 37.8% \| 22,282 EUR \| 25.7% \|
	\| 31,000 EUR \| 19,242 EUR \| 37.9% \| 23,000 EUR \| 25.8% \|
	\| 32,000 EUR \| 19,838 EUR \| 38.0% \| 23,717 EUR \| 25.9% \|
	\| 33,000 EUR \| 20,434 EUR \| 38.1% \| 24,434 EUR \| 26.0% \|
	\| 34,000 EUR \| 21,030 EUR \| 38.1% \| 25,151 EUR \| 26.0% \|
	\| 35,000 EUR \| 21,626 EUR \| 38.2% \| 25,868 EUR \| 26.1% \|
	\| 36,000 EUR \| 22,222 EUR \| 38.3% \| 26,586 EUR \| 26.1% \|
	\| 37,000 EUR \| 22,818 EUR \| 38.3% \| 27,303 EUR \| 26.2% \|
	\| 38,000 EUR \| 23,414 EUR \| 38.4% \| 28,020 EUR \| 26.3% \|
	\| 39,000 EUR \| 24,010 EUR \| 38.4% \| 28,737 EUR \| 26.3% \|
	\| 40,000 EUR \| 24,606 EUR \| 38.5% \| 29,454 EUR \| 26.4% \|
	\| 41,000 EUR \| 25,202 EUR \| 38.5% \| 30,172 EUR \| 26.4% \|
	\| 42,000 EUR \| 25,798 EUR \| 38.6% \| 30,889 EUR \| 26.5% \|
	\| 43,000 EUR \| 26,394 EUR \| 38.6% \| 31,606 EUR \| 26.5% \|
	\| 44,000 EUR \| 26,990 EUR \| 38.7% \| 32,323 EUR \| 26.5% \|
	\| 45,000 EUR \| 27,586 EUR \| 38.7% \| 33,040 EUR \| 26.6% \|
	\| 46,000 EUR \| 28,182 EUR \| 38.7% \| 33,758 EUR \| 26.6% \|
	\| 47,000 EUR \| 28,778 EUR \| 38.8% \| 34,475 EUR \| 26.6% \|
	\| 48,000 EUR \| 29,374 EUR \| 38.8% \| 35,192 EUR \| 26.7% \|
	\| 49,000 EUR \| 29,970 EUR \| 38.8% \| 35,909 EUR \| 26.7% \|
	\| 50,000 EUR \| 30,566 EUR \| 38.9% \| 36,626 EUR \| 26.7% \|
	\| 51,000 EUR \| 31,162 EUR \| 38.9% \| 37,344 EUR \| 26.8% \|
	\| 52,000 EUR \| 31,758 EUR \| 38.9% \| 38,061 EUR \| 26.8% \|
	\| 53,000 EUR \| 32,354 EUR \| 39.0% \| 38,778 EUR \| 26.8% \|
	\| 54,000 EUR \| 32,950 EUR \| 39.0% \| 39,495 EUR \| 26.9% \|
	\| 55,000 EUR \| 33,546 EUR \| 39.0% \| 40,212 EUR \| 26.9% \|
	\| 56,000 EUR \| 34,142 EUR \| 39.0% \| 40,930 EUR \| 26.9% \|
	\| 57,000 EUR \| 34,738 EUR \| 39.1% \| 41,647 EUR \| 26.9% \|
	\| 58,000 EUR \| 35,334 EUR \| 39.1% \| 42,364 EUR \| 27.0% \|
	\| 59,000 EUR \| 35,930 EUR \| 39.1% \| 43,081 EUR \| 27.0% \|
	\| 60,000 EUR \| 36,526 EUR \| 39.1% \| 43,798 EUR \| 27.0% \|
	\| 61,000 EUR \| 37,122 EUR \| 39.1% \| 44,516 EUR \| 27.0% \|
	\| 62,000 EUR \| 37,718 EUR \| 39.2% \| 45,233 EUR \| 27.0% \|
	\| 63,000 EUR \| 38,314 EUR \| 39.2% \| 45,950 EUR \| 27.1% \|
	\| 64,000 EUR \| 38,910 EUR \| 39.2% \| 46,667 EUR \| 27.1% \|
	\| 65,000 EUR \| 39,506 EUR \| 39.2% \| 47,384 EUR \| 27.1% \|
	\| 66,000 EUR \| 40,102 EUR \| 39.2% \| 48,102 EUR \| 27.1% \|
	\| 67,000 EUR \| 40,631 EUR \| 39.4% \| 48,819 EUR \| 27.1% \|
	\| 68,000 EUR \| 41,111 EUR \| 39.5% \| 49,536 EUR \| 27.2% \|
	\| 69,000 EUR \| 41,591 EUR \| 39.7% \| 50,253 EUR \| 27.2% \|
	\| 70,000 EUR \| 42,071 EUR \| 39.9% \| 50,970 EUR \| 27.2% \|
	\| 71,000 EUR \| 42,551 EUR \| 40.1% \| 51,688 EUR \| 27.2% \|
	\| 72,000 EUR \| 43,031 EUR \| 40.2% \| 52,405 EUR \| 27.2% \|
	\| 73,000 EUR \| 43,511 EUR \| 40.4% \| 53,122 EUR \| 27.2% \|
	\| 74,000 EUR \| 43,991 EUR \| 40.6% \| 53,839 EUR \| 27.2% \|
	\| 75,000 EUR \| 44,471 EUR \| 40.7% \| 54,556 EUR \| 27.3% \|
	\| 76,000 EUR \| 44,951 EUR \| 40.9% \| 55,274 EUR \| 27.3% \|
	\| 77,000 EUR \| 45,431 EUR \| 41.0% \| 55,991 EUR \| 27.3% \|
	\| 78,000 EUR \| 45,911 EUR \| 41.1% \| 56,708 EUR \| 27.3% \|
	\| 79,000 EUR \| 46,391 EUR \| 41.3% \| 57,425 EUR \| 27.3% \|
	\| 80,000 EUR \| 46,871 EUR \| 41.4% \| 58,142 EUR \| 27.3% \|
	\| 81,000 EUR \| 47,351 EUR \| 41.5% \| 58,860 EUR \| 27.3% \|
	\| 82,000 EUR \| 47,831 EUR \| 41.7% \| 59,577 EUR \| 27.3% \|
	\| 83,000 EUR \| 48,311 EUR \| 41.8% \| 60,294 EUR \| 27.4% \|
	\| 84,000 EUR \| 48,791 EUR \| 41.9% \| 61,011 EUR \| 27.4% \|
	\| 85,000 EUR \| 49,271 EUR \| 42.0% \| 61,728 EUR \| 27.4% \|
	\| 86,000 EUR \| 49,751 EUR \| 42.1% \| 62,446 EUR \| 27.4% \|
	\| 87,000 EUR \| 50,231 EUR \| 42.3% \| 63,163 EUR \| 27.4% \|
	\| 88,000 EUR \| 50,711 EUR \| 42.4% \| 63,880 EUR \| 27.4% \|
	\| 89,000 EUR \| 51,191 EUR \| 42.5% \| 64,597 EUR \| 27.4% \|
	\| 90,000 EUR \| 51,671 EUR \| 42.6% \| 65,314 EUR \| 27.4% \|
	\| 91,000 EUR \| 52,151 EUR \| 42.7% \| 66,032 EUR \| 27.4% \|
	\| 92,000 EUR \| 52,631 EUR \| 42.8% \| 66,749 EUR \| 27.4% \|
	\| 93,000 EUR \| 53,111 EUR \| 42.9% \| 67,466 EUR \| 27.5% \|
	\| 94,000 EUR \| 53,591 EUR \| 43.0% \| 68,183 EUR \| 27.5% \|
	\| 95,000 EUR \| 54,071 EUR \| 43.1% \| 68,891 EUR \| 27.5% \|
	\| 96,000 EUR \| 54,551 EUR \| 43.2% \| 69,527 EUR \| 27.6% \|
	\| 97,000 EUR \| 55,031 EUR \| 43.3% \| 70,163 EUR \| 27.7% \|
	\| 98,000 EUR \| 55,511 EUR \| 43.4% \| 70,799 EUR \| 27.8% \|
	\| 99,000 EUR \| 55,991 EUR \| 43.4% \| 71,435 EUR \| 27.8% \|
	\| 100,000 EUR \| 56,471 EUR \| 43.5% \| 72,071 EUR \| 27.9% \|
	\| 101,000 EUR \| 56,951 EUR \| 43.6% \| 72,707 EUR \| 28.0% \|
	\| 102,000 EUR \| 57,431 EUR \| 43.7% \| 73,343 EUR \| 28.1% \|
	\| 103,000 EUR \| 57,911 EUR \| 43.8% \| 73,979 EUR \| 28.2% \|
	\| 104,000 EUR \| 58,391 EUR \| 43.9% \| 74,615 EUR \| 28.3% \|
	\| 105,000 EUR \| 58,871 EUR \| 43.9% \| 75,251 EUR \| 28.3% \|
	\| 106,000 EUR \| 59,351 EUR \| 44.0% \| 75,887 EUR \| 28.4% \|
	\| 107,000 EUR \| 59,831 EUR \| 44.1% \| 76,523 EUR \| 28.5% \|
	\| 108,000 EUR \| 60,311 EUR \| 44.2% \| 77,159 EUR \| 28.6% \|
	\| 109,000 EUR \| 60,791 EUR \| 44.2% \| 77,795 EUR \| 28.6% \|
	\| 110,000 EUR \| 61,271 EUR \| 44.3% \| 78,431 EUR \| 28.7% \|
	\| 111,000 EUR \| 61,751 EUR \| 44.4% \| 79,067 EUR \| 28.8% \|
	\| 112,000 EUR \| 62,231 EUR \| 44.4% \| 79,703 EUR \| 28.8% \|
	\| 113,000 EUR \| 62,711 EUR \| 44.5% \| 80,339 EUR \| 28.9% \|
	\| 114,000 EUR \| 63,191 EUR \| 44.6% \| 80,975 EUR \| 29.0% \|
	\| 115,000 EUR \| 63,671 EUR \| 44.6% \| 81,611 EUR \| 29.0% \|
	\| 116,000 EUR \| 64,151 EUR \| 44.7% \| 82,247 EUR \| 29.1% \|
	\| 117,000 EUR \| 64,631 EUR \| 44.8% \| 82,883 EUR \| 29.2% \|
	\| 118,000 EUR \| 65,111 EUR \| 44.8% \| 83,519 EUR \| 29.2% \|
	\| 119,000 EUR \| 65,591 EUR \| 44.9% \| 84,155 EUR \| 29.3% \|
	\| 120,000 EUR \| 66,071 EUR \| 44.9% \| 84,791 EUR \| 29.3% \|
	\| 121,000 EUR \| 66,551 EUR \| 45.0% \| 85,427 EUR \| 29.4% \|
	\| 122,000 EUR \| 67,031 EUR \| 45.1% \| 86,063 EUR \| 29.5% \|
	\| 123,000 EUR \| 67,511 EUR \| 45.1% \| 86,699 EUR \| 29.5% \|
	\| 124,000 EUR \| 67,991 EUR \| 45.2% \| 87,335 EUR \| 29.6% \|
	\| 125,000 EUR \| 68,471 EUR \| 45.2% \| 87,971 EUR \| 29.6% \|
	\| 126,000 EUR \| 68,951 EUR \| 45.3% \| 88,607 EUR \| 29.7% \|
	\| 127,000 EUR \| 69,431 EUR \| 45.3% \| 89,243 EUR \| 29.7% \|
	\| 128,000 EUR \| 69,911 EUR \| 45.4% \| 89,879 EUR \| 29.8% \|
	\| 129,000 EUR \| 70,391 EUR \| 45.4% \| 90,515 EUR \| 29.8% \|
	\| 130,000 EUR \| 70,871 EUR \| 45.5% \| 91,151 EUR \| 29.9% \|
	\| 131,000 EUR \| 71,351 EUR \| 45.5% \| 91,787 EUR \| 29.9% \|
	\| 132,000 EUR \| 71,831 EUR \| 45.6% \| 92,423 EUR \| 30.0% \|
	\| 133,000 EUR \| 72,311 EUR \| 45.6% \| 93,059 EUR \| 30.0% \|
	\| 134,000 EUR \| 72,791 EUR \| 45.7% \| 93,695 EUR \| 30.1% \|
	\| 135,000 EUR \| 73,271 EUR \| 45.7% \| 94,331 EUR \| 30.1% \|
	\| 136,000 EUR \| 73,751 EUR \| 45.8% \| 94,967 EUR \| 30.2% \|
	\| 137,000 EUR \| 74,231 EUR \| 45.8% \| 95,603 EUR \| 30.2% \|
	\| 138,000 EUR \| 74,711 EUR \| 45.9% \| 96,239 EUR \| 30.3% \|
	\| 139,000 EUR \| 75,191 EUR \| 45.9% \| 96,875 EUR \| 30.3% \|
	\| 140,000 EUR \| 75,671 EUR \| 45.9% \| 97,511 EUR \| 30.3% \|
	\| 141,000 EUR \| 76,151 EUR \| 46.0% \| 98,147 EUR \| 30.4% \|
	\| 142,000 EUR \| 76,631 EUR \| 46.0% \| 98,783 EUR \| 30.4% \|
	\| 143,000 EUR \| 77,111 EUR \| 46.1% \| 99,419 EUR \| 30.5% \|
	\| 144,000 EUR \| 77,591 EUR \| 46.1% \| 100,055 EUR \| 30.5% \|
	\| 145,000 EUR \| 78,071 EUR \| 46.2% \| 100,691 EUR \| 30.6% \|
	\| 146,000 EUR \| 78,551 EUR \| 46.2% \| 101,327 EUR \| 30.6% \|
	\| 147,000 EUR \| 79,031 EUR \| 46.2% \| 101,963 EUR \| 30.6% \|
	\| 148,000 EUR \| 79,511 EUR \| 46.3% \| 102,599 EUR \| 30.7% \|
	\| 149,000 EUR \| 79,991 EUR \| 46.3% \| 103,235 EUR \| 30.7% \|
	\| 150,000 EUR \| 80,471 EUR \| 46.4% \| 103,871 EUR \| 30.8% \|
	\| 151,000 EUR \| 80,951 EUR \| 46.4% \| 104,507 EUR \| 30.8% \|
	\| 152,000 EUR \| 81,431 EUR \| 46.4% \| 105,143 EUR \| 30.8% \|
	\| 153,000 EUR \| 81,911 EUR \| 46.5% \| 105,779 EUR \| 30.9% \|
	\| 154,000 EUR \| 82,391 EUR \| 46.5% \| 106,415 EUR \| 30.9% \|
	\| 155,000 EUR \| 82,871 EUR \| 46.5% \| 107,051 EUR \| 30.9% \|
	\| 156,000 EUR \| 83,351 EUR \| 46.6% \| 107,687 EUR \| 31.0% \|
	\| 157,000 EUR \| 83,831 EUR \| 46.6% \| 108,323 EUR \| 31.0% \|
	\| 158,000 EUR \| 84,311 EUR \| 46.6% \| 108,959 EUR \| 31.0% \|
	\| 159,000 EUR \| 84,791 EUR \| 46.7% \| 109,595 EUR \| 31.1% \|
	\| 160,000 EUR \| 85,271 EUR \| 46.7% \| 110,231 EUR \| 31.1% \|
	\| 161,000 EUR \| 85,751 EUR \| 46.7% \| 110,867 EUR \| 31.1% \|
	\| 162,000 EUR \| 86,231 EUR \| 46.8% \| 111,503 EUR \| 31.2% \|
	\| 163,000 EUR \| 86,711 EUR \| 46.8% \| 112,139 EUR \| 31.2% \|
	\| 164,000 EUR \| 87,191 EUR \| 46.8% \| 112,775 EUR \| 31.2% \|
	\| 165,000 EUR \| 87,671 EUR \| 46.9% \| 113,411 EUR \| 31.3% \|
	\| 166,000 EUR \| 88,151 EUR \| 46.9% \| 114,047 EUR \| 31.3% \|
	\| 167,000 EUR \| 88,631 EUR \| 46.9% \| 114,683 EUR \| 31.3% \|
	\| 168,000 EUR \| 89,111 EUR \| 47.0% \| 115,319 EUR \| 31.4% \|
	\| 169,000 EUR \| 89,591 EUR \| 47.0% \| 115,955 EUR \| 31.4% \|
	\| 170,000 EUR \| 90,071 EUR \| 47.0% \| 116,591 EUR \| 31.4% \|
	\| 171,000 EUR \| 90,551 EUR \| 47.0% \| 117,227 EUR \| 31.4% \|
	\| 172,000 EUR \| 91,031 EUR \| 47.1% \| 117,863 EUR \| 31.5% \|
	\| 173,000 EUR \| 91,511 EUR \| 47.1% \| 118,499 EUR \| 31.5% \|
	\| 174,000 EUR \| 91,991 EUR \| 47.1% \| 119,135 EUR \| 31.5% \|
	\| 175,000 EUR \| 92,471 EUR \| 47.2% \| 119,771 EUR \| 31.6% \|
	\| 176,000 EUR \| 92,951 EUR \| 47.2% \| 120,407 EUR \| 31.6% \|
	\| 177,000 EUR \| 93,431 EUR \| 47.2% \| 121,043 EUR \| 31.6% \|
	\| 178,000 EUR \| 93,911 EUR \| 47.2% \| 121,679 EUR \| 31.6% \|
	\| 179,000 EUR \| 94,391 EUR \| 47.3% \| 122,315 EUR \| 31.7% \|
	\| 180,000 EUR \| 94,871 EUR \| 47.3% \| 122,951 EUR \| 31.7% \|
	\| 181,000 EUR \| 95,351 EUR \| 47.3% \| 123,587 EUR \| 31.7% \|
	\| 182,000 EUR \| 95,831 EUR \| 47.3% \| 124,223 EUR \| 31.7% \|
	\| 183,000 EUR \| 96,311 EUR \| 47.4% \| 124,859 EUR \| 31.8% \|
	\| 184,000 EUR \| 96,791 EUR \| 47.4% \| 125,495 EUR \| 31.8% \|
	\| 185,000 EUR \| 97,271 EUR \| 47.4% \| 126,131 EUR \| 31.8% \|
	\| 186,000 EUR \| 97,751 EUR \| 47.4% \| 126,767 EUR \| 31.8% \|
	\| 187,000 EUR \| 98,231 EUR \| 47.5% \| 127,403 EUR \| 31.9% \|
	\| 188,000 EUR \| 98,711 EUR \| 47.5% \| 128,039 EUR \| 31.9% \|
	\| 189,000 EUR \| 99,191 EUR \| 47.5% \| 128,675 EUR \| 31.9% \|
	\| 190,000 EUR \| 99,671 EUR \| 47.5% \| 129,311 EUR \| 31.9% \|
	\| 191,000 EUR \| 100,151 EUR \| 47.6% \| 129,947 EUR \| 32.0% \|
	\| 192,000 EUR \| 100,631 EUR \| 47.6% \| 130,583 EUR \| 32.0% \|
	\| 193,000 EUR \| 101,111 EUR \| 47.6% \| 131,219 EUR \| 32.0% \|
	\| 194,000 EUR \| 101,591 EUR \| 47.6% \| 131,855 EUR \| 32.0% \|
	\| 195,000 EUR \| 102,071 EUR \| 47.7% \| 132,491 EUR \| 32.1% \|
	\| 196,000 EUR \| 102,551 EUR \| 47.7% \| 133,127 EUR \| 32.1% \|
	\| 197,000 EUR \| 103,031 EUR \| 47.7% \| 133,763 EUR \| 32.1% \|
	\| 198,000 EUR \| 103,511 EUR \| 47.7% \| 134,399 EUR \| 32.1% \|
	\| 199,000 EUR \| 103,991 EUR \| 47.7% \| 135,035 EUR \| 32.1% \|
	\| 200,000 EUR \| 104,471 EUR \| 47.8% \| 135,671 EUR \| 32.2% \|
	+----------------+---------------+----------+------------------+----------+