Canada Revenue Agency
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Canada Child Tax Benefit (CCTB) - Calculation sheet
for the July 2006 to June 2007 payments (2005 tax year)

Basic Benefit

Standard benefit:
Number of qualified dependants:
  × $1,255.00* = 1 $  

* For Alberta, the standard benefit is: $1,147 for qualified dependants under 7; $1,225 for qualified dependants 7‑11; $1,373 for qualified dependants 12‑15; and, $1,452 for qualified dependants 16 or 17.

   
Supplement for 3rd and each additional qualified dependant:   × $88.00 = 2 $  
Number of qualified dependants who are 6 years of age:   × $249.00 = 3 $  
Child care expenses claimed for all qualified dependants:   × 25% = 4 $  
Net supplement for qualified dependants who are 6 years of age (line 3 minus line 4). If negative, enter "0" 5 $  
Subtotal (add lines 1, 2 and 5) 6 $  

Benefit Reduction

Family net income: 7 $      
Subtract base amount: 8 $ − 36,378.00    
Family net income over base amount (line 7 minus line 8). If negative, enter "0" 9 $      
Minus benefit reduction of:
- 2% of line 9 for family with one qualified dependant
- 4% of line 9 for family with two or more qualified dependants 
10 $  
Net benefit amount (line 6 minus line 10). If negative, enter "0"  11 $  

Calculation of National Child Benefit Supplement

Amount for 1st qualified dependant ($1,945.00)   12 $  
Amount for 2nd qualified dependant ($1,720.00)   13 $  
Amount for 3rd and each additional qualified dependant ($1,637.00)   × $1,637.00 = 14 $  
Total amounts for qualified dependants (add lines 12, 13 and 14)     15 $  
Family net income
(from line 7 above)
16 $      
Subtract base amount 17 $ − 20,435.00    
Family net income over base amount (line 16 minus line 17). If negative, enter "0" 18 $      
Less:
- 12.2% of line 18 for family with one qualified dependant
- 22.9% of line 18 for family with two qualified dependants
- 33.2% of line 18 for family with three or more qualified dependants
19 $  
Net National Child Benefit Supplement (line 15 minus line 19). If negative, enter "0" 20 $  

Calculation of the Child Disability Benefit (CDB)

Number of qualified dependants with a disability **   × $2,300.00 = 21 $  

** In order for a child to be a qualified dependant for the Child Disability Benefit, the child must qualify for the disability amount.

   
Family net income (from line 7 above) 22 $      
Subtract CDB base amount 23 $ −         
Family net income over CDB base amount (line 22 minus line 23). If negative, enter "0" 24 $      
Less:
- 2% of line 24 for family with one qualified dependant with a disability
- 4% of line 24 for family with two or more qualified dependants with a disability
25 $  
Net Child Disability Benefit (line 21 minus line 25). If negative, enter "0" 26 $  

Calculation of the CCTB total entitlement

Total entitlement (add lines 11, 20 and 26) 27 $  
All amounts are approximate. Your Notice of Determination will show your actual entitlement for the year.    

CDB base amount

The CDB base threshold is determined by the total number of children eligible for CCTB.

Number of Children Base threshold
1 $36,378
2 $36,440
3 $36,405
4 $41,336
5 $46,267
6 $51,197
7 $56,128
8 $61,059