Ontario Child Support Calculator

• Section 7 — special or extraordinary expenses (childcare, medical, post-secondary, extracurriculars). Shared by income proportion.
• Section 9 — shared parenting (40%+ time with each parent). Uses a set-off, not the straight table.
• Section 8 — split parenting (each parent has primary residence of at least one child).
• Section 10 — undue hardship.
• Section 4 — payor income over $150,000 (judicial discretion).

If any of those apply, talk to a family lawyer or mediator. This calculator is an estimate of the Section 3 table amount only — not legal advice.