The working income tax benefit is a refundable tax
  credit.  The following table summarizes the WITB amounts for
  Quebec.  In this table the word couple refers to a person
  with an eligible spouse.
 All amounts in the
  table have been confirmed to Canada Revenue Agency (CRA) factors as published
  in Schedule 6 of the 2013 income tax return.  These were confirmed
  previously to the CRA website, but the adjusted net income base amounts were increased
  in
  2013 Schedule 6.  This automatically increases the net
  income at which WITB is reduced to zero.
    
      | Basic working income tax benefit
        amounts for Quebec for 2013 | 
    
    
      | Base amount of working
        income: | 
    
    
      |  - single person | 
      $2,400
       | 
    
    
      |  - couple | 
      $3,600 | 
    
    
      | % applied to excess of
        working income over base amount: | 
    
    
      |  - single person/couple with no eligible dependent | 
      20.5% | 
    
    
      |  - single parent | 
      12% | 
    
    
      |  - couple with eligible
        dependent | 
      8% | 
    
    
      | Maximum WITB refundable
        amount: | 
    
    
      |  - single person | 
      $1,599.41 | 
    
    
      |  - couple with no eligible
        dependent | 
      $2,498.13 | 
    
    
      |  - single parent | 
      $936.24 | 
    
    
      |  - couple with eligible
        dependent | 
      $974.88 | 
    
    
      | Adjusted net income base
        amount: | 
    
    
      |  - single person | 
      $12,075 | 
    
    
      |  - couple | 
      $18,540 | 
    
    
      | % applied to net income
        over base amount, to reduce the WITB: | 
    
    
      |  - single person or couple | 
      20% | 
    
    
      | Net income at which WITB is
        reduced to zero (when no disability supplement): | 
    
    
      |  - single person | 
      $20,072.05 | 
    
    
      |  - couple no eligible
        dependent | 
      $31,030.65 | 
    
    
      |  - single parent | 
      $16,756.20 | 
    
    
      |  - couple with eligible
        dependent | 
      $23,414.40 | 
    
    
      | Working income at which
        maximum WITB is reached: | 
    
    
      |  - single person | 
      $10,202 | 
    
    
      |  - couple no eligible
        dependent | 
      $15,786 | 
    
    
      |  - single parent | 
      $10,202 | 
    
    
      |  - couple with eligible
        dependent | 
      $15,786 | 
    
    
      | Disability supplement amounts for
        Quebec  | 
    
    
      | Base amount of working
        income: | 
    
    
      |  - single/couple | 
      $1,200 | 
    
    
      | % applied to excess of
        working income over base amount: | 
    
    
      |  - single person | 
      40% | 
    
    
      |  - couple | 
      20% | 
    
    
      | Maximum WITB refundable
        amount for each disabled person: | 
    
    
      |  - per person | 
      $513.86 | 
    
    
      | Adjusted net income base
        amount: | 
    
    
      |  - single person | 
      $20,072.05 | 
    
    
      |  - couple no eligible
        dependent | 
      $31,030.65 | 
    
    
      |  - single parent | 
      $16,756.20 | 
    
    
      |  - couple with eligible
        dependent | 
      $23,414.40 | 
    
    
      | % applied to net income
        over base amount, to reduce the WITB: | 
    
    
      |  - If you had an eligible
        spouse and he or she also qualifies for the disability amount, the rate
        used is A.  In all other situations, the rate used is B. | 
    
    
      |  A
       | 
      10% | 
    
    
      |  B
       | 
      20% | 
    
    
      | Net income at which WITB is
        reduced to zero when there is a disability supplement: | 
    
    
      | When only one
        spouse is eligible for a disability supplement (Factor B) | 
    
    
      |  - single person | 
      $22,641.33 | 
    
    
      |  - couple no eligible
        dependent | 
      $33,599.93 | 
    
    
      |  - single parent | 
      $19,325.48 | 
    
    
      |  - couple with eligible
        dependent | 
      $25,983.68 | 
    
    
      | When both spouses
        are eligible for a disability supplement (Factor A) | 
    
    
      |  - couple no eligible dependent | 
      $36,169.25 | 
    
    
      |  - couple with eligible dependent | 
      $28,553.00 |