Basic values 277-03160000
Expand allThis document details information and tables including:
- care levels
- cost percentages
- protected earnings amount
- annualised MTAWE
- self-support amount
- default income
- maximum basic amount for parenting payment single
- minimum annual rate
- fixed annual rate, and
- the costs of children
It includes values for periods prior to 1 July 2008 and for WA ex-nuptial children (pre 1 July 1999 amendments).
Care levels table
Table 1: this table identifies the care terms for different care percentage ranges and the number of nights in a year that equates to the care level. See the Child Support Guide 2.2.1: Basics of care.
Cost percentage table
Table 2: this table has information relating to a parent's or non-parent carer's cost percentage represents the percentage of a child's costs the person meets directly through care. The cost percentage is determined according to the person's percentage of care, using the cost percentages table (section 55C). See the Child Support Guide 2.4.5: Care, cost and child support percentages.
Basic Values (01/01/2025 - 31/12/2025)
Table 3: this table has the 2025 Basic Values for child support periods (CS Periods) starting in 2025. See the Child Support Guide 2.4.2: Formula tables and values.
2025 Costs of children
Costs of children tables are published each calendar year for assessments for child support periods (CS Periods) starting in that calendar year.
The columns of the tables identify different parental income levels and the costs of children for that level:
- child support formulas 1, 2, 3 and 4 use the parents' combined child support income to calculate the costs of children
- child support formulas 5 and 6 use only one parent's income to determine the costs of children
- the last column is used to calculate the costs of children if income is greater than 2.5 times MTAWE, that is, costs are capped at that amount
Ages of the children
Separate tables based on the ages of the children identify the costs of those children for the parental income level:
- all children aged 0-12 years, or
- all children aged 13+ years, or
-
children of mixed age where at least 1 child is aged 0-12 years and 1 child aged 13+ years.
Mixed age amounts are used when: - calculating the costs of a child using the basic formula method, or
- the costs of a relevant dependent child
The costs of children for a day in a CS Period are calculated by identifying the ages of the children for that day. If a child will turn 13 within the child support period, costs are calculated differently for the periods before and after the child's 13th birthday.
Number of children
The ranges (rows) for the number of children are 1, 2 and 3 or more. That is, for 4 or more children, the same costs apply as for 3 children. Use the ages of the 3 oldest children to calculate costs for more than 3 children.
For more information, see the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child.
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 4: this table has the 2025 costs of children for CS Periods starting in 2025. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 5: this table has the 2025 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $44,7621 |
$44,763 to $89,5232 |
$89,524 to $134,2853 |
$134,286 to $179,0464 |
$179,047 to $223,8085 |
Income over $223,8086 |
|
1 child |
23c for each $1 |
$10,295 plus 22c for each $1 over $44,762 |
$20,142 plus 12c for each $1 over $89,523 |
$25,513 plus 10c for each $1 over $134,285 |
$29,989 plus 9c for each $1 over $179,046 |
$34,018 |
|
2 children |
29c for each $1 |
$12,981 plus 28c for each $1 over $44,762 |
$25,514 plus 25c for each $1 over $89,523 |
$36,705 plus 20c for each $1 over $134,285 |
$45,657 plus 13c for each $1 over $179,046 |
$51,476 |
|
3+ children |
32c for each $1 |
$14,324 plus 31c for each $1 over $44,762 |
$28,200 plus 30c for each $1 over $89,523 |
$41,629 plus 29c for each $1 over $134,285 |
$54,610 plus 20c for each $1 over $179,046 |
$63,562 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 6: this table has the 2025 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $44,7621 |
$44,763 to $89,5232 |
$89,524 to $134,2853 |
$134,286 to $179,0464 |
$179,047 to $223,8085 |
Income over $223,8086 |
|
2 children |
26.5c for each $1 |
$11,862 plus 25.5c for each $1 over $44,762 |
$23,276 plus 22.5c for each $1 over $89,523 |
$33,347 plus 19c for each $1 over $134,285 |
$41,852 plus 11.5c for each $1 over $179,046 |
$47,000 |
|
3+ children |
29.5c for each $1 |
$13,205 plus 28.5c for each $1 over $44,762 |
$25,962 plus 27.5c for each $1 over $89,523 |
$38,272 plus 26.5c for each $1 over $134,285 |
$50,134 plus 19c for each $1 over $179,046 |
$58,639 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Prior year basic values and costs of children
Basic Values (01/01/2024 - 31/12/2024)
Table 7: this table has the 2024 Basic Values for child support periods (CS Periods) starting in 2024. See the Child Support Guide 2.4.2: Formula tables and values.
2024 Costs of children
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 8: this table has the 2024 costs of children for child support periods (CS Periods) starting in 2024. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 9: this table has the 2024 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $42,6951 |
$42,696 to $85,3892 |
$85,390 to $128,0843 |
$128,085 to $170,7784 |
$170,779 to $213,4735 |
Income over $213,4736 |
|
1 child |
23c for each $1 |
$9,820 plus 22c for each $1 over $42,695 |
$19,213 plus 12c for each $1 over $85,389 |
$24,336 plus 10c for each $1 over $128,084 |
$28,605 plus 9c for each $1 over $170,778 |
$32,448 |
|
2 children |
29c for each $1 |
$12,382 plus 28c for each $1 over $42,695 |
$24,336 plus 25c for each $1 over $85,389 |
$35,010 plus 20c for each $1 over $128,084 |
$43,549 plus 13c for each $1 over $170,778 |
$49,099 |
|
3+ children |
32c for each $1 |
$13,662 plus 31c for each $1 over $42,695 |
$26,897 plus 30c for each $1 over $85,389 |
$39,706 plus 29c for each $1 over $128,084 |
$52,087 plus 20c for each $1 over $170,778 |
$60,626 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 10: this table has the 2024 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $42,6951 |
$42,696 to $85,3892 |
$85,390 to $128,0843 |
$128,085 to $170,7784 |
$170,779 to $213,4735 |
Income over $213,4736 |
|
2 children |
26.5c for each $1 |
$11,314 plus 25.5c for each $1 over $42,695 |
$22,201 plus 22.5c for each $1 over $85,389 |
$31,807 plus 19c for each $1 over $128,084 |
$39,919 plus 11.5c for each $1 over $170,778 |
$44,829 |
|
3+ children |
29.5c for each $1 |
$12,595 plus 28.5c for each $1 over $42,695 |
$24,763 plus 27.5c for each $1 over $85,389 |
$36,504 plus 26.5c for each $1 over $128,084 |
$47,818 plus 19c for each $1 over $170,778 |
$55,930 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Basic Values (01/01/2023 - 31/12/2023)
Table 11: this table has the 2023 Basic Values for child support periods (CS Periods) starting in 2023. See the Child Support Guide 2.4.2: Formula tables and values.
2023 Cost of children
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 12: this table has the 2023 costs of children for child support periods (CS Periods) starting in 2023. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 13: this table has the 2023 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $41,2621 |
$41,263 to $82,5242 |
$82,525 to $123,7863 |
$123,787 to $165,0484 |
$165,049 to $206,3105 |
Income over $206,3106 |
|
1 child |
23c for each $1 |
$9,490 plus 22c for each $1 over $41,262 |
$18,568 plus 12c for each $1 over $82,524 |
$23,519 plus 10c for each $1 over $123,786 |
$27,645 plus 9c for each $1 over $165,048 |
$31,359 |
|
2 children |
29c for each $1 |
$11,966 plus 28c for each $1 over $41,262 |
$23,519 plus 25c for each $1 over $82,524 |
$33,835 plus 20c for each $1 over $123,786 |
$42,087 plus 13c for each $1 over $165,048 |
$47,451 |
|
3+ children |
32c for each $1 |
$13,204 plus 31c for each $1 over $41,262 |
$25,995 plus 30c for each $1 over $82,524 |
$38,374 plus 29c for each $1 over $123,786 |
$50,340 plus 20c for each $1 over $165,048 |
$58,592 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 14: this table has 2023 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $41,2621 |
$41,263 to $82,5242 |
$82,525 to $123,7863 |
$123,787 to $165,0484 |
$165,049 to $206,3105 |
Income over $206,3106 |
|
2 children |
26.5c for each $1 |
$10,934 plus 25.5c for each $1 over $41,262 |
$21,456 plus 22.5c for each $1 over $82,524 |
$30,740 plus 19c for each $1 over $123,786 |
$38,580 plus 11.5c for each $1 over $165,048 |
$43,325 |
|
3+ children |
29.5c for each $1 |
$12,172 plus 28.5c for each $1 over $41,262 |
$23,932 plus 27.5c for each $1 over $82,524 |
$35,279 plus 26.5c for each $1 over $123,786 |
$46,213 plus 19c for each $1 over $165,048 |
$54,053 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Basic Values (01/01/2022 - 31/12/2022)
Table 15: this table has the 2022 Basic Values for child support periods (CS Periods) starting in 2022. See the Child Support Guide 2.4.2: Formula tables and values.
2022 Costs of children
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 16: this table has the 2022 costs of children for child support periods (CS Periods) starting in 2022. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 17: this table has the 2022 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $40,5941 |
$40,595 to $81,1882 |
$81,189 to $121,7823 |
$121,783 to $162,3764 |
$162,377 to $202,9705 |
Income over $202,9706 |
|
1 child |
23c for each $1 |
$9,337 plus 22c for each $1 over $40,594 |
$18,268 plus 12c for each $1 over $81,188 |
$23,139 plus 10c for each $1 over $121,782 |
$27,198 plus 9c for each $1 over $162,376 |
$30,851 |
|
2 children |
29c for each $1 |
$11,772 plus 28c for each $1 over $40,594 |
$23,138 plus 25c for each $1 over $81,188 |
$33,287 plus 20c for each $1 over $121,782 |
$41,406 plus 13c for each $1 over $162,376 |
$46,683 |
|
3+ children |
32c for each $1 |
$12,990 plus 31c for each $1 over $40,594 |
$25,574 plus 30c for each $1 over $81,188 |
$37,752 plus 29c for each $1 over $121,782 |
$49,524 plus 20c for each $1 over $162,376 |
$57,643 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 18: this table has the 2022 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $40,5941 |
$40,595 to $81,1882 |
$81,189 to $121,7823 |
$121,783 to $162,3764 |
$162,377 to $202,9705 |
Income over $202,9706 |
|
2 children |
26.5c for each $1 |
$10,757 plus 25.5c for each $1 over $40,594 |
$21,108 plus 22.5c for each $1 over $81,188 |
$30,242 plus 19c for each $1 over $121,782 |
$37,955 plus 11.5c for each $1 over $162,376 |
$42,623 |
|
3+ children |
29.5c for each $1 |
$11,975 plus 28.5c for each $1 over $40,594 |
$23,544 plus 27.5c for each $1 over $81,188 |
$34,707 plus 26.5c for each $1 over $121,782 |
$45,464 plus 19c for each $1 over $162,376 |
$53,177 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Basic Values (01/01/2021 - 31/12/2021)
Table 19: this table has the 2021 Basic Values for child support periods (CS Periods) starting in 2021. See the Child Support Guide 2.4.2: Formula tables and values.
2021 Costs of children
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 20: this table has the 2021 costs of children for child support periods (CS Periods) starting in 2021. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 21: this table has the 2021 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $39,4791 |
$39,480 to $78,9572 |
$78,958 to $118,4363 |
$118,437 to $157,9144 |
$157,915 to $197,3935 |
Income over $197,3936 |
|
1 child |
23c for each $1 |
$9,080 plus 22c for each $1 over $39,479 |
$17,765 plus 12c for each $1 over $78,957 |
$22,502 plus 10c for each $1 over $118,436 |
$26,450 plus 9c for each $1 over $157,914 |
$30,003 |
|
2 children |
29c for each $1 |
$11,449 plus 28c for each $1 over $39,479 |
$22,503 plus 25c for each $1 over $78,957 |
$32,373 plus 20c for each $1 over $118,436 |
$40,269 plus 13c for each $1 over $157,914 |
$45,401 |
|
3+ children |
32c for each $1 |
$12,633 plus 31c for each $1 over $39,479 |
$24,871 plus 30c for each $1 over $78,957 |
$36,715 plus 29c for each $1 over $118,436 |
$48,164 plus 20c for each $1 over $157,914 |
$56,060 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 22: this table has the 2021 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $39,4791 |
$39,480 to $78,9572 |
$78,958 to $118,4363 |
$118,437 to $157,9144 |
$157,915 to $197,3935 |
Income over $197,3936 |
|
2 children |
26.5c for each $1 |
$10,462 plus 25.5c for each $1 over $39,479 |
$20,529 plus 22.5c for each $1 over $78,957 |
$29,412 plus 19c for each $1 over $118,436 |
$36,913 plus 11.5c for each $1 over $157,914 |
$41,453 |
|
3+ children |
29.5c for each $1 |
$11,646 plus 28.5c for each $1 over $39,479 |
$22,897 plus 27.5c for each $1 over $78,957 |
$33,754 plus 26.5c for each $1 over $118,436 |
$44,216 plus 19c for each $1 over $157,914 |
$51,717 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Basic Values (01/01/2020 - 31/12/2020)
Table 23: this table has the 2020 Basic Values for child support periods (CS Periods) starting in 2020. See the Child Support Guide 2.4.2: Formula tables and values.
2020 Costs of children
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 24: this table has 2020 costs of children for child support periods (CS Periods) starting in 2020. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 25: this table has the 2020 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $38,3631 |
$38,364 to $76,7262 |
$76,727 to $115,0893 |
$115,090 to $153,4524 |
$153,453 to $191,8155 |
Income over $191,8156 |
|
1 child |
23c for each $1 |
$8,823 plus 22c for each $1 over $38,363 |
$17,263 plus 12c for each $1 over $76,726 |
$21,867 plus 10c for each $1 over $115,089 |
$25,703 plus 9c for each $1 over $153,452 |
$29,156 |
|
2 children |
29c for each $1 |
$11,125 plus 28c for each $1 over $38,363 |
$21,867 plus 25c for each $1 over $76,726 |
$31,458 plus 20c for each $1 over $115,089 |
$39,131 plus 13c for each $1 over $153,452 |
$44,118 |
|
3+ children |
32c for each $1 |
$12,276 plus 31c for each $1 over $38,363 |
$24,169 plus 30c for each $1 over $76,726 |
$35,678 plus 29c for each $1 over $115,089 |
$46,803 plus 20c for each $1 over $153,452 |
$54,476 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 26: this table has the 2020 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $38,3631 |
$38,364 to $76,7262 |
$76,727 to $115,0893 |
$115,090 to $153,4524 |
$153,453 to $191,8155 |
Income over $191,8156 |
|
2 children |
26.5c for each $1 |
$10,166 plus 25.5c for each $1 over $38,363 |
$19,949 plus 22.5c for each $1 over $76,726 |
$28,581 plus 19c for each $1 over $115,089 |
$35,870 plus 11.5c for each $1 over $153,452 |
$40,282 |
|
3+ children |
29.5c for each $1 |
$11,317 plus 28.5c for each $1 over $38,363 |
$22,250 plus 27.5c for each $1 over $76,726 |
$32,800 plus 26.5c for each $1 over $115,089 |
$42,966 plus 19c for each $1 over $153,452 |
$50,255 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Basic Values (01/01/2019 - 31/12/2019)
Table 27: this table has the 2019 Basic Values for child support periods (CS Periods) starting in 2019. See the Child Support Guide 2.4.2: Formula tables and values.
2019 Costs of children
Costs of children (to be apportioned between parents) - children aged 0 to 12 years
Table 28: this table has the 2019 costs of children for child support periods (CS Periods) starting in 2019. See the Child Support Guide 2.4.4: Child support income and 2.4.6: The costs of the child for the calculation of parents' combined Child Support Income (CSI).
Costs of children (to be apportioned between parents) - children aged 13+ years
Table 29: this table has the 2019 costs of children (to be apportioned between parents) - children 13+ years.
|
No of children |
$0 to $37,5571 |
$37,558 to $75,1142 |
$75,115 to $112,6713 |
$112,672 to $150,2284 |
$150,229 to $187,7855 |
Income over $187,7856 |
|
1 child |
23c for each $1 |
$8,638 plus 22c for each $1 over $37,557 |
$16,901 plus 12c for each $1 over $75,114 |
$21,408 plus 10c for each $1 over $112,671 |
$25,164 plus 9c for each $1 over $150,228 |
$28,544 |
|
2 children |
29c for each $1 |
$10,892 plus 28c for each $1 over$37,557 |
$21,409 plus 25c for each $1 over $75,114 |
$30,797 plus 20c for each $1 over $112,671 |
$38,308 plus 13c for each $1 over $150,228 |
$43,190 |
|
3+ children |
32c for each $1 |
$12,018 plus 31c for each $1 over $37,557 |
$23,661 plus 30c for each $1 over $75,114 |
$34,928 plus 29c for each $1 over $112,671 |
$45,820 plus 20c for each $1 over $150,228 |
$53,331 |
Costs of children (to be apportioned between parents) - children of mixed age
Table 30: this table has the 2019 costs of children (to be apportioned between parents) - children of mixed age.
|
No of children |
$0 to $37,5571 |
$37,558 to $75,1142 |
$75,115 to $112,6713 |
$112,672 to $150,2284 |
$150,229 to $187,7855 |
Income over $187,7856 |
|
2 children |
26.5c for each $1 |
$9,953 plus 25.5c for each $1 over $37,557 |
$19,530 plus 22.5c for each $1 over $75,114 |
$27,980 plus 19c for each $1 over $112,671 |
$35,116 plus 11.5c for each $1 over $150,228 |
$39,435 |
|
3+ children |
29.5c for each $1 |
$11,079 plus 28.5c for each $1 over $37,557 |
$21,738 plus 27.5c for each $1 over $75,114 |
$32,111 plus 26.5c for each $1 over $112,671 |
$42,064 plus 19c for each $1 over $150,228 |
$49,200 |
1 0.5 MTAWE
2 MTAWE
3 1.5 MTAWE
4 2.0 MTAWE
5 2.5 MTAWE
6 2.5 Costs of children do not increase above this cap
Historical Basic Values and Costs of Children tables
- Basic Values and Costs of Children tables from 1992 to 2008 (including the Basic Values for WA ex-nuptial cases from 01/07/1999 to 30/06/2001)
- Basic Values and Cost of Children tables 2009 -2018