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Maine Family Law Calculators

Maine family law calculators, built on the official guidelines.

Work out child support the way Maine courts do, see exactly how each number was reached, and compare "what if" scenarios before you sit down to negotiate.

The calculators

One place for the numbers in a Maine divorce.

Available now

Child Support Calculator

Uses Maine's official FM-084 support table and the FM-040 worksheets, for primary and substantially equal care.

  • Every step shown with its formula
  • Compare scenarios side by side
  • Print-ready reports
Coming soon

Support Modification

See whether new circumstances change the amount enough to request a change to an existing order.

Coming soon

Spousal Support

Explore spousal support ranges and how they affect child support and each household's budget.

Coming soon

Property Division

Model how the home, accounts and debts could be divided, including buyouts.

Try it with sample numbers

Harbor Family Law
Sample data

Morgan family

Child support calculator

Scenario

Income

Combined annual $120,000

AAlex Morgan

Annual income

$42,000.00
Income share35.0%

BJamie Morgan

Annual income

$78,000.00
Income share65.0%

Children

Sam, 7 · Riley, 10

Care arrangement

Alex has primary care
Childcare NoneChild insurance NoneOther adjustments None

Weekly child support

$273.00/ week

Jamie Morgan Alex Morgan

Monthly average

$1,183.00

Annual

$14,196.00

Fictional family and organization. Sample amounts calculated by the app; not legal advice or an official determination.

Who it's for

Two ways to use it.

For parents

Working through your own case.

  • A simple personal space, no setup
  • One of each calculator, unlimited scenarios
  • Checklist of documents to back up your numbers
  • Reports to bring to mediation

For law firms and mediators

Every client, every scenario, one team.

  • Unlimited clients and calculators
  • Team members with role permissions
  • Your logo and contact details on reports
  • Activity log and client assignments

See how it was calculated

Each step shows the rule, the numbers used and the result.

Compare scenarios

Differences are highlighted so the trade-offs are easy to see.

Flags what needs review

Unusual situations are clearly marked rather than guessed at.

Pricing

Simple plans. 7 days free.

Individual

For a parent working through their own case

$149/ year

  • One of each calculator
  • Unlimited scenarios and comparisons
  • PDF reports
  • Supporting document checklist
Start 7-day free trial

Professional

For firms

For law firms and mediators

$790per team member / year

  • Unlimited clients and calculators
  • Team members with role permissions
  • Your firm's logo and contact details on reports
  • Activity log and client assignments
Start 7-day free trial

Prices in USD. Sales tax is added at checkout where it applies. Cancel anytime.

Security

Built to protect sensitive family finances.

Organization isolation

Every client, calculator and document belongs to one organization. The database itself refuses access across organizations.

Deny-by-default permissions

Row-level security checks every request. Only active members see data, and suspended members lose access immediately.

Roles and delegated access

Owners and admins manage the team and decide who may edit organization details, send invitations or view activity.

Secure sign-in

Email confirmation, leaked-password screening, and authenticator-app two-step verification support.

Private file storage

Logos and documents are stored privately and shown only through short-lived signed links.

Append-only activity log

Key changes are recorded automatically and cannot be edited or erased from the app.

Tamper-resistant reports

Exported results are recalculated on the server and saved as immutable snapshots with rule and table versions.

Recoverable deletion

Scenarios and documents are soft-deleted first, so accidental removals can be reviewed before permanent purge.

Get to a number you can explain.

Start free for 7 days. Cancel anytime.

Start free trial