Family money calculators for Australian parents

The numbers behind family decisions.

Work out how childcare, work, parental leave and government payments affect your family's money.

Australian settingsPrivate by defaultNo account required
Choose your decision

Start with the question on your mind.

Coming next

Leave Maths

Plan employer leave, government Paid Parental Leave and unpaid leave runway.

Planned

Family Payments

Bring family payment estimates into the same family picture.

Enter details once

One family picture. More useful decisions.

ParentMath is being built so common family details can be reused across calculators. At launch, your calculator data stays in this browser.

  1. 1Add your family details
  2. 2Test a decision
  3. 3Compare the result in plain English
Trust and privacy

Your figures are not our product.

Local by default. Financial inputs remain on your device unless you choose to share a scenario.

Transparent assumptions. Calculation settings are dated and linked to official sources.

Educational estimates. ParentMath is not a government service or financial adviser.

Read the methodology →
Latest guides

Understand the number, not just the result.

ParentMath updates

Leave Maths is coming next.

Privacy-safe double-opt-in email updates are planned through Brevo. For now, bookmark ParentMath and check back.

See the roadmap