Ontario SSAG Calculator · 2025 Guidelines

Clarity in the
hardest chapter
of your life

Court-grade spousal and child support calculations built on the SSAG — the same framework your lawyer uses. Instant. Accurate. Private.

SSAG Compliant
Bank-level security
Instant results
Spousal Support Range
HIGH
$1,333
per month
MID
$1,167
per month
LOW
$1,000
per month

10-year relationship · $80,000 income difference

Child Support (net)
$1,716 /mo
Federal CSG table amount
2025
CSG Tables
SSAG
Guidelines
Ontario
Jurisdiction
T1 Sim
Tax Engine
Why OurSeparation

Everything you need. Nothing you don't.

Built by lawyers and engineers for Ontario families navigating the hardest time of their lives.

Court-grade SSAG

Based on the Spousal Support Advisory Guidelines — the exact same framework Ontario family lawyers and judges rely on.

Full Ontario Tax Engine

Simulates complete T1 returns — CCB, GST/HST, CAI, OTB, OCB, LIFT credit, surtax, and health premium.

High / Mid / Low Range

Every calculation shows the full SSAG range so you know the floor, midpoint, and ceiling of your support position.

Per-Child Parenting

Primary care, shared care, and mixed arrangements calculated per child — exactly as the Federal Child Support Guidelines require.

Date-Aware Tables

Auto-selects the correct Federal Child Support Table (2006, 2011, 2017, or 2025) based on your separation date.

Secure by Design

JWT-authenticated sessions, bcrypt-hashed passwords, Supabase-hosted database. Your data is private and protected.

The process

Three steps to clarity

🔐
01

Create your account

Secure registration in under a minute. Your data is encrypted and private.

📋
02

Enter your information

Income (Line 15000), relationship dates, children and parenting arrangements.

📊
03

Get your results

Instant High / Mid / Low SSAG range with annual and monthly amounts.

Calculation accuracy

Same formula as the professionals

OurSeparation uses the identical SSAG with-children formula used by DivoreMate, DivorePath, and Ontario family lawyers — including the full INDI binary solver, notional child support deductions, and correct 40/43/46% INDI targets.

  • SSAG With-Children Formula (INDI-based)
  • SSAG Without-Children Formula
  • Federal Child Support Guidelines (all table years)
  • Full Ontario T1 tax simulation
  • Annual tax parameters updated by your admin
DivorePath comparison
$75k / $150k income split✓ Match
Child support $1,716/mo✓ Match
SSAG Low $56 · Mid $571 · High $1,094✓ Match
Federal 2017 CSG table (exact)✓ Match

Ready to understand your situation?

Create a free account and run your first calculation in minutes.

Start your calculation

No credit card required · Secure · Private