If part of your compensation comes from stock options, restricted stock units (RSUs), or private-company shares, your paycheque may tell only part of your financial story. A grant can be worth little today, become valuable after a funding round or public offering, and vest in stages that cross your wedding date.
That makes equity compensation a strong reason to discuss a prenuptial agreement early. A Canadian prenup can help a couple decide how existing grants, future vesting, growth, taxes, and disclosure should be handled. It cannot make an uncertain valuation certain or guarantee that every term will be enforced.
This guide explains the planning questions to take to separate family lawyers before marriage. It is general information, not legal or tax advice.
Quick answer: can a prenup protect stock options and RSUs in Canada?
Potentially, yes. Depending on your province and the way the agreement is negotiated and signed, a prenup may be used to:
- identify grants, vested shares, unvested units, and exercise rights owned before marriage
- state whether some or all of those interests, and their future growth, remain separate
- set a method for treating awards that vest during the relationship
- distinguish future grants from grants earned partly before marriage
- allocate taxes, exercise costs, and transaction expenses when calculating value
- require records and notice when a grant is replaced, accelerated, exercised, or sold
- create a review process after a financing, promotion, public offering, or major new award
The exact result depends on provincial family law, the plan documents, the facts, and the agreement itself. Both partners should receive meaningful financial disclosure and independent legal advice.
Why tech equity is different from a regular investment account
A savings account has a balance. Public shares usually have a visible market price. Equity compensation can be harder to describe because several dates and conditions may matter:
- Grant date: when the employer awards the option, unit, or share right
- Vesting date: when conditions are satisfied and the employee gains a stronger right to the award
- Exercise date: for an option, when the employee pays the exercise price to acquire shares
- Liquidity date: when the shares can actually be sold, which may be much later for a private company
- Tax date: when an employment benefit or other taxable amount is recognized
The Canada Revenue Agency distinguishes standard stock options from restricted stock plans or RSUs and notes that the tax timing can depend on the plan and whether the issuer is a Canadian-controlled private corporation. CRA also requires foreign-currency amounts to be converted to Canadian dollars for reporting. Those tax rules do not decide family property rights, but they show why a one-line entry called “company stock” is rarely enough.
If you are still sorting out what belongs on your schedules, start with Prenuply's financial disclosure checklist for Canadian prenups.
Stock options, RSUs, and private shares are not the same asset
Stock options
A stock option generally gives an employee the right to buy shares at a set exercise price after specified conditions are met. The option may be unvested, vested but unexercised, exercised into shares, expired, cancelled, or replaced after a corporate transaction.
A useful prenup discussion asks what happens at each stage. Saying only that “stock options remain separate” may leave unanswered questions about replacement awards, shares acquired on exercise, dividends, sale proceeds, and the tax bill.
Restricted stock units
An RSU is generally a promise connected to shares or their value, subject to vesting conditions. Some plans settle in shares, some in cash, and some allow or require different settlement mechanics. The employer's plan and grant documents matter.
Couples should avoid assuming that an unvested RSU is either worthless or the same as a share already owned. Its value may depend on continued employment, performance conditions, the company's share price, and the valuation date used under provincial law or the agreement.
Private-company and pre-IPO equity
Private-company equity adds another layer. There may be no active market, transfer restrictions may prevent a sale, and a recent financing price may not equal what an employee's common shares are worth. Options can also have a short exercise window after employment ends.
The prenup does not need to predict an IPO price. It should create a workable process for identifying the interest, documenting changes, choosing a valuation approach, and allocating costs.
The equity timeline a prenup should map
Before drafting clauses, build a timeline for every material award:
- When was the offer or grant made?
- What service or performance period does it reward?
- What portion is vested today?
- What portion may vest before and after marriage?
- What must be paid to exercise the option?
- Can the award be sold, transferred, cancelled, or replaced?
- What happens if employment ends?
- What tax and withholding obligations may arise?
This timeline helps the lawyers separate two questions that are often blurred together: what exists on the wedding date, and what value or entitlement develops during the relationship.
Seven clauses and decisions worth discussing with your lawyers
1. Define the equity interests precisely
The agreement can define stock options, RSUs, performance share units, employee share purchase plan holdings, private shares, warrants, replacement awards, dividends, and sale proceeds. Definitions should match the actual plan documents rather than rely on labels used in an HR portal.
2. Identify pre-marriage grants in the disclosure schedules
List each grant separately where practical. Include the issuer, grant date, award type, number of units or options, vesting schedule, exercise price, vested amount, currency, and transfer restrictions. Attach or exchange the source documents used to prepare the schedule.
This is especially important where one partner has much more equity than the other. Full disclosure helps both people understand the deal and makes the negotiation more credible.
3. Decide how future vesting will be treated
There is more than one fair approach. A couple might agree that:
- all value from a grant made before marriage remains separate
- the pre-marriage portion remains separate, while a defined relationship-era portion is shared
- vesting during marriage is treated differently from vesting after separation
- only net sale proceeds after exercise costs and tax are considered
The right approach depends on the couple's goals and provincial law. A formula should be testable with real records, not just sound fair in conversation.
4. Address replacement awards and corporate events
Equity plans change. A company may merge, reorganize, raise capital, split its shares, accelerate vesting, cash out awards, or replace one plan with another. Without continuity language, an award intended to be separate could become harder to trace after a transaction.
Ask how substituted shares, cash proceeds, rollovers, and replacement grants will be treated. Keep the original and replacement documents together.
5. Use a valuation process, not a guessed number
Public shares may have a quoted value, but even then the relevant date, currency, tax, and sale restrictions matter. Private equity may require a valuation professional or a formula tied to reliable company information.
A prenup can set out who chooses the valuator, what information must be provided, whether discounts or tax liabilities are considered, and how the cost is shared. It should not pretend that a speculative award has a guaranteed current value.
6. Separate ownership from spousal support analysis
An agreement may say an equity award is one partner's separate property, but compensation and income questions can still matter in a support analysis. A large vest or cash settlement may affect income differently from the underlying ownership question.
Prenuply's guide to spousal support in Canadian prenups and cohabitation agreements explains why property and support should be discussed separately.
7. Build in record-keeping and review triggers
Useful records include annual grant statements, vesting notices, exercise confirmations, T4 slips, tax returns, cap table statements, shareholder agreements, and sale documents. A review clause can prompt the couple to revisit the agreement after a major grant, promotion, financing, IPO, move to another province, or material change in family responsibilities.
Three approaches couples use when one partner has much more tech equity
Keep pre-marriage equity separate
The partner with the award keeps grants identified before marriage, including defined proceeds or growth. The couple may still share new savings and assets accumulated together. This can be easier to administer when records are strong.
Share the relationship-era portion
The agreement uses a formula to recognize that some value was earned before marriage and some developed during it. This can feel more balanced, but it requires careful drafting around dates, conditions, and valuation.
Use a hybrid with a fairness mechanism
The parties keep the underlying equity separate but agree on another form of protection for the lower-earning partner, such as shared savings, home equity, a payment formula, insurance, or a review after parental leave. This can address the economic effect of career or caregiving decisions without trying to split every grant.
A prenup should protect both partners' ability to understand and plan their future. It should not be used to hide compensation or force a last-minute waiver.
Province-specific points to flag
Family property law is provincial, so there is no single Canadian formula for stock options or RSUs.
Ontario
Ontario uses a net family property equalization system. The Ontario Family Law Act recognizes property that spouses agree by domestic contract will not be included in net family property. The Act also allows a court to set aside a domestic contract in specified circumstances, including significant non-disclosure or a failure to understand the contract's nature or consequences.
For an Ontario tech employee, marriage-date records and a clear treatment of future growth can be as important as the headline exclusion.
British Columbia
British Columbia's Family Law Act identifies certain pre-relationship property as excluded property and allows spouses to make written agreements that include, exclude, divide, or value property and debt differently. The Act also contains rules for setting aside property agreements.
The start of the spousal relationship, not only the wedding date, can be important in BC. Couples who lived together before becoming engaged should tell their lawyers the full relationship timeline.
Alberta
Alberta applies family property rules to married spouses and adult interdependent partners. Alberta's public guidance says partners may opt out and make their own property division agreement. Formal requirements and separate legal acknowledgements need careful lawyer attention.
Quebec
Quebec uses a distinct civil-law system. Under the Civil Code of Québec, marriage contracts must be executed by notarial act en minute, and spouses cannot contract out of imperative provisions or public order. A generic common-law Canadian prenup process is not a substitute for a Quebec notary.
If you are choosing where to start, compare Prenuply's prenup laws by province guide and then get advice in your province.
The disclosure package to prepare
Bring these items to the drafting and lawyer-review process:
- employment offer and current compensation summary
- every active grant agreement and plan document
- vesting schedules and portal statements
- cap table or shareholder statements available to you
- exercise prices, expiry dates, and post-employment exercise rules
- shareholder, voting, transfer, or lock-up restrictions
- recent company valuation or financing information you are permitted to share
- T4 slips and tax returns showing previous equity benefits
- exercise, sale, and withholding records
- a list of grants expected but not yet formally awarded
- the currency used for each value
Do not breach workplace confidentiality to prepare a prenup. Ask your employer or plan administrator what statements can be provided, and let your lawyers decide how confidential documents should be exchanged and stored.
A practical scenario
Suppose Jordan receives 12,000 private-company options two years before marriage. One quarter has vested by the wedding date, the rest vests monthly over three years, and the company later replaces the options during an acquisition.
A weak clause might say, “Jordan's options are separate.” A stronger drafting process would ask:
- Does the exclusion cover only the vested portion or the whole original grant?
- How are replacement awards traced back to the original options?
- Are exercise costs and taxes deducted before measuring value?
- What records must Jordan provide after the acquisition?
- Does a new retention grant count as a replacement award or a future grant?
- What happens if the couple moves provinces?
The answers are not automatic. The value of the prenup is that the couple can choose a clear approach before the award becomes more valuable or a disagreement begins.
Step-by-step plan before the wedding
- Download every grant and plan document while you still have portal access.
- Build a grant-by-grant timeline of vesting, exercise, expiry, and liquidity restrictions.
- Exchange complete financial disclosure with your partner.
- Discuss your preferred approach in plain language before drafting legal clauses.
- Start early enough for negotiation and separate lawyer review.
- Ask a tax professional about exercise, sale, foreign-currency, and private-company issues.
- Have separate family lawyers review the agreement and the disclosure package.
- Sign using the formalities required in your province.
- Store the signed agreement and disclosure records together.
- Review the plan after a major award, financing, IPO, job change, move, or family change.
For the broader workflow, see How to Create a Prenup in Canada: 8-Step Guide and Independent Legal Advice for Prenups in Canada.
FAQ
Are unvested RSUs included in a Canadian prenup?
They can be identified and addressed, but whether and how they should be treated depends on the plan, provincial law, the relationship timeline, and the agreement. Avoid assigning a guaranteed value to an award that may be forfeited or change.
Can a prenup protect stock options that vest after marriage?
It may define some or all of a pre-marriage grant, including later vesting or replacement property, as separate. The wording, disclosure, fairness, and provincial rules matter. A lawyer should test the clause against the actual grant documents.
What about stock options granted after the wedding?
A prenup can set rules for future grants, but a blanket exclusion may not fit every couple. Consider whether an award compensates work during the marriage, replaces an older grant, or affects support and tax calculations.
Do we need an exact value before signing?
You need honest, meaningful disclosure. Some private or unvested interests cannot be valued precisely. In that situation, disclose the award documents, the available valuation information, and the uncertainty. The agreement can include a valuation process for later.
Should we include employer share purchase plan holdings?
Yes, if they are material. Distinguish payroll contributions, purchased shares, employer matching, dividends, and future participation. Record the balance and plan rules as of the relevant date.
Can one lawyer advise both partners?
One lawyer cannot provide independent legal advice to both sides of the same prenup. Each partner should have a separate lawyer who can explain the agreement's consequences and advise that person alone.
Sources checked
This article was prepared using sources checked on July 13, 2026, including the Canada Revenue Agency guidance on employee security options, the Ontario Family Law Act, the British Columbia Family Law Act, Alberta guidance on family property agreements, and the Civil Code of Québec.
Prenuply AI Inc. is a technology company, not a law firm. Prenuply does not provide legal or tax advice. A Prenuply agreement is a template for review with independent legal professionals in your province.