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Spousal Support Calculator - Canada [2023]

Calculate spousal support (alimony) for FREE in less than five minutes, for any Canadian province. Includes tax and setoffs.

Spousal Support Calculator for Canada
Updated January 1, 2023

This spousal support calculator estimates support payments using the Canadian Spousal Support Advisory Guidelines (the "SSAGS"). Calculate alimony payments and child support (if applicable) by entering some basic information about your family in the calculator form below.'

This support calculator is for basic, ongoing support obligations. To calculate retroactive support, or for more complex calculations, try the Divorcepath Spousal Support Calculator.

This free calculator is for estimating ongoing support. If you need to download a reliable support report suitable for court or mediation, try the Divorcepath support calculator. Divorcepath is free to try, with premium reports starting at $19.00. Professional use plans are also available. Click here learn more.



This calculator estimates after tax income based on gross income and provincial residence, applying common tax credits and deductions. It assumes all income is employment income, i.e. income from line 150 of your income tax return. Calculations will not be as accurate for other types of income, as different tax considerations apply.

Step 2: Relationship

Period of Cohabitation

The formula adjusts spousal support based on the length of the marriage until the date of separation, plus any period of pre-marital cohabitation. Please calculate this period of time (in years) and enter it below.
Step 3: Children

Do you have dependent children?

Spousal support calculations will vary based on any child support obligations and special expenses. Click "yes" below if you have dependent children.

Step 4: Calculate

Calculate Spousal Support (Alimony)

By clicking "calculate" you acknowledge that this website does not provide legal advice, that many factors can and will affect spousal support (alimony) and child support calculations, that this calculator adjusts payments for certain typical circumstances only, does not account for all tax scenarios, and should not be relied on or presented in court without consulting a family lawyer. All calculations are estimates only.

Step 5: Analysis

Your Support Report

Generate your free spousal support report using the calculator above. Your report will include:

Detailed Support Scenarios

Review a detailed analysis of your income and expenses and your spouse's income and expenses in low, medium and high spousal support (alimony) scenarios.

Monthly Disposable Cash

Compare your monthly free cash flow to that of your spouse, i.e. income remaining after considering tax, spousal support / alimony and child support.

Total Income Distribution

Visualize how your combined income could be distributed, showing net income, tax, benefits, child support and spousal support.
Reviews & Comments

Rate the Spousal Support Calculator - Canada [2023]

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Spousal Support Calculator (Alimony Calculator)
On 003/01/2018 Updated 09/01/2022 Reviewed by:

The child support calculator provided on line through this firm is awesome. We have a long standing support agreement and we use this annually to update the child support amounts based on our T4s. Thank you for providing this great tool online which allows you lawyers to focus on cases that really require your help rather than simple accounting annually for us folks long through the process.


We'd love to hear your thoughts on how to make this tool better, or how you've found it helpful. Please submit your review using the form below.


The Spousal Support Advisory Guidelines

Although the Spousal Support Advisory Guidelines are not legally binding, courts increasingly refer to them, as they provide a consistent formula that takes into consideration many legally relevant factors. Such factors include the after-tax income of each spouse, the duration of the relationship, and whether there are dependent children. Accordingly, this calculator will also factor in any child support obligations.

Note that spousal support is sometimes also referred to as "alimony", which is synonymous with "spousal support". However, Canadian courts now generally refer to spousal support rather than alimony.

Calculator Assumptions

This calculator makes a number of assumptions in order to provide an estimate of spousal support (alimony) and child support based on the limited information provided.

Spousal support is calculated using the federal Spousal Support Advisory Guidelines, the income of each parent, applicable taxes on employment income, certain generally applicable tax deductions and credits, calculated child support and notional child support

Income is assumed to be gross employment or self-employment income, i.e. line 150 of the federal income tax return of each parent. If any income is earned from non-employment sources, the child support amount calculated will require adjustment.

Many other factors can also affect the amount of spousal support / alimony that is payable, including but not limited to:

  • social assistance income;
  • tax deductions and credits other than the basic deductions;
  • undue hardship adjustments;
  • other dependants and prior support obligations;
  • property settlements and lump sum spousal support or child support payments;
  • separation agreements, prenuptial agreements and postnuptial agreements or marriage contracts;
  • both parties residing in Quebec or outside Canada; and
  • other adjustments to income or support payable pursuant to the child support guidelines and spousal support guidelines.
This calculator assumes that no such factors or adjustments are applicable.

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