By Neta, founder of SortMyDivorce · Published · Updated
If you've searched for a divorce settlement calculator, what you probably want is to understand how the number is arrived at. Here is the arithmetic in plain words — what goes in, what comes out, and why two people can run the same case and land on very different figures.
The free calculator runs your figures under your own province's rules — Manitoba's whole-asset exclusions, Ontario's marriage-date deduction, Alberta's discretionary range, Nova Scotia's rule that what you brought into the marriage still counts. Free, private, nothing leaves your device.
Open the settlement calculator →The phrase people hear is '50/50,' but in Ontario, and in a similar way in Manitoba and Quebec, the math doesn't touch individual assets one at a time — though BC, Alberta, Saskatchewan and the Atlantic provinces divide the family property itself rather than computing a gap. Instead, each spouse's net family property is calculated — everything they own, minus what they owe, minus certain excluded amounts — and then the two totals are compared. The spouse with the higher net figure typically owes the other roughly half of the gap between them. That payment is what people mean by 'equalization.' The house, the car, and the pension don't each get cut in two; the overall balance sheets get evened out, and how each spouse actually keeps or divides individual property is a separate negotiation layered on top.
This distinction matters because it explains why a letter can propose one spouse 'keeping' the house and 'keeping' most of an RRSP and still call the deal fair — the equalization payment is doing the balancing in the background. If a letter's numbers don't seem to add up, the first question is usually whether you're looking at the same net family property figures the other side used.
Every equalization figure rests on three moving pieces for each spouse: the value of what they own on the relevant date, the debts they owe on that date, and any property that gets excluded from the calculation entirely — commonly things brought into the relationship, inheritances, and gifts from third parties, though the exact exclusion list is set by each province's family property legislation. Subtract debts and exclusions from total assets, and what's left is that spouse's net family property.
‘Brought into the relationship’ is not an exclusion everywhere, and the Atlantic provinces are where that surprises people. Nova Scotia’s Matrimonial Property Act counts property acquired before the marriage as a matrimonial asset, so what you owned on the wedding day divides with the rest unless a court finds an equal split unfair or unconscionable. New Brunswick sits in between: a family asset — the home, household goods, a vehicle, the account the family ran on — is marital property whenever it was acquired, while anything else you owned before living together stays out. Manitoba puts a pre-relationship asset outside the accounting entirely, growth included. Same phrase, three different results — and the free calculator runs each province’s own rule.
The date those values get pinned to — the 'valuation date' — is its own fight in many files. Some provinces default to the date of separation, others to the date of trial or settlement, and a few allow the spouses to agree on a different date entirely. Because property values move over time, a letter that quietly assumes one valuation date over another isn't a neutral drafting choice — it can meaningfully change both net figures before a single asset is discussed.
Exclusions carry their own math problem: it's rarely enough to claim money was inherited or brought in — the exclusion generally has to be traced to something the spouse still owns. Money that went into a joint account, a renovation, or a shared investment can lose its excluded status if the paper trail doesn't survive the years in between.
Say Spouse A's net family property, after debts and exclusions, comes out higher than Spouse B's. Call the difference between the two figures 'the gap.' In the equalization approach used in several provinces, Spouse A owes Spouse B roughly half of that gap — the payment that closes the distance between the two balance sheets. Everything upstream of that single subtraction is where the real disagreement usually lives: which valuation date was used, whether an inheritance was properly excluded and traced, whether a pension was valued using a proper actuarial approach rather than a rough estimate, and whether debts (a line of credit, a tax liability, a business loan) were assigned to the right side of the ledger.
This is also why two lawyers can look at the same house, the same pension, and the same bank statements and arrive at meaningfully different equalization figures — they're not disagreeing about the formula, they're disagreeing about the inputs that go into it. When a letter states a number without showing its net family property work, that's the part worth asking for.
A handful of categories generate most of the disputes: pensions, which usually need a formal valuation rather than a statement balance; businesses and corporations, where value depends on assumptions a specific valuator has to make; excluded property that wasn't kept separate enough to trace cleanly; and the valuation date itself, especially when property values have moved a lot since separation. None of these are exotic — they show up in an ordinary file, and each one is a place where a letter's proposed number can shift depending on which position you accept.
Support calculations run on a different, more standardized formula tied to income, and are generally handled separately from the property equalization math — it's worth keeping the two straight when a letter bundles both into one settlement figure.
The formula itself is simple subtraction. What makes settlement math hard in practice is that every input — an asset value, a debt balance, a claimed exclusion, a valuation date — arrives buried in a letter, an attachment, or a verbal conversation, weeks or months before anyone sits down to calculate anything. The letter that first proposed a particular valuation date, the email that first mentioned an inheritance, the statement that first valued the pension — those are the documents an equalization dispute eventually turns on.
This is the gap SortMyDivorce is built to close: it reads your letters and pulls out the dates, positions, and figures that end up feeding the math, organized with the exact quote behind each one, so nothing you'll need later is buried in an inbox. A dedicated settlement calculator that walks through this equalization math using your own organized numbers is coming next.
In broad strokes: each spouse's property is valued at a set date, debts are subtracted to give each a net figure, certain items may be excluded or exempt (often inheritances, gifts, or pre-marriage assets, depending on where you live), and the spouse with the larger net figure typically pays roughly half the difference to the other. That payment is often called an equalization payment. The arithmetic is simple; the disputes are about the inputs.
Online calculators can give you a rough sense of scale, but they can't see your exclusions, your valuation date, your jurisdiction's rules, or the tax treatment of specific assets — which are exactly the things that move the number most. Use a calculator as a sanity check, then work the real figures with your lawyer. The free asset and debt worksheet further down this page lets you lay out your own numbers and see each side's running total.
The home is usually treated as one asset within the larger calculation rather than something physically divided. Common outcomes are: one spouse buys out the other's share (often by refinancing), the home is sold and net proceeds are divided, or one spouse stays for a defined period before a later sale. What matters for the math is the agreed value, the outstanding mortgage, and any exclusion someone claims — for example, if part of the down payment came from an inheritance.
Entitlement doesn't depend on gender in most modern family law systems — it depends on the property regime where you live, the length of the relationship, what each person brought in, and any support obligations. Rather than a fixed share, think in terms of the calculation above: net property equalized, plus any spousal or child support determined separately. A local family lawyer can tell you what actually applies to your situation.
Not automatically. Savings accumulated during the relationship are commonly part of the property pool, while funds you brought in beforehand, or received by inheritance or gift, may be excluded — if you can trace them. Tracing is a documentation exercise, which is why account statements going back to the start of the relationship are so valuable.
No. What's usually equalized is the net value, not each individual item. One spouse can keep the house and the other a larger share of retirement savings, so long as the totals balance to the agreed result.
It's the date on which assets and debts are measured. Depending on the jurisdiction, it might be the date of separation, the date of trial, or another fixed point — and moving it can shift the final figure substantially when values have changed. It is one of the most commonly contested inputs.
Last reviewed August 2026. Researched and written by Neta, founder of SortMyDivorce. I am not a lawyer and this is not legal advice — laws, fees and forms change, so please confirm current details with your court’s official website or a local family lawyer.
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