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Hourly Wage

Suppose you work in New Zealand, would like to earn a given net weekly income for 52 weeks per year after income tax, and would like to work a given number of hours per week for 46 weeks per year (*). What gross hourly income must you earn?

This little Python 3 program answers that question.:

~> python3 hourly_wage.py
------------------------------------------------------
Gross hourly income given
net (weekly, yearly) income for 52 weeks per year and
hours worked per week for 46 weeks per year
------------------------------------------------------
                     5    10    15    20    25    30    35   40
   ($100, $5200)   $25   $13    $8    $6    $5    $4    $4   $3
  ($200, $10400)   $51   $25   $17   $13   $10    $8    $7   $6
  ($300, $15600)   $77   $39   $26   $19   $15   $13   $11  $10
  ($400, $20800)  $104   $52   $35   $26   $21   $17   $15  $13
  ($500, $26000)  $132   $66   $44   $33   $26   $22   $19  $16
  ($600, $31200)  $159   $80   $53   $40   $32   $27   $23  $20
  ($700, $36400)  $187   $93   $62   $47   $37   $31   $27  $23
  ($800, $41600)  $215  $108   $72   $54   $43   $36   $31  $27
  ($900, $46800)  $247  $124   $82   $62   $49   $41   $35  $31
 ($1000, $52000)  $280  $140   $93   $70   $56   $47   $40  $35
 ($1100, $57200)  $312  $156  $104   $78   $62   $52   $45  $39
 ($1200, $62400)  $346  $173  $115   $87   $69   $58   $49  $43
 ($1300, $67600)  $380  $190  $127   $95   $76   $63   $54  $47
 ($1400, $72800)  $413  $207  $138  $103   $83   $69   $59  $52
 ($1500, $78000)  $447  $224  $149  $112   $89   $75   $64  $56
 ($1600, $83200)  $481  $240  $160  $120   $96   $80   $69  $60
 ($1700, $88400)  $515  $257  $172  $129  $103   $86   $74  $64
 ($1800, $93600)  $548  $274  $183  $137  $110   $91   $78  $69
 ($1900, $98800)  $582  $291  $194  $146  $116   $97   $83  $73
($2000, $104000)  $616  $308  $205  $154  $123  $103   $88  $77
($2100, $109200)  $650  $325  $217  $162  $130  $108   $93  $81
($2200, $114400)  $683  $342  $228  $171  $137  $114   $98  $85
($2300, $119600)  $717  $359  $239  $179  $143  $120  $102  $90
($2400, $124800)  $751  $375  $250  $188  $150  $125  $107  $94
($2500, $130000)  $785  $392  $262  $196  $157  $131  $112  $98

The gross hourly incomes needed are displayed in the body of the table in New Zealand dollars, rounded to the nearest dollar and excluding GST. For example, to earn $1200/week after tax, working 25 hours/week, you need to earn $68/hour before tax.

(*) = NZ workers get 4 weeks annual leave plus roughly 2 weeks of public holidays

Requirements

None, unless you want to develop, in which case you should pip install requirements.txt.

Authors

  • Alex Raichev (2014-07)

History

v1.0.0, 2017-03-31

Removed SciPy dependence

v0.0.0, 2014-07-27

First release