Postnuptial agreements

Already married? It’s not too late to get on
the same page.

A postnuptial agreement lets married couples set clear terms for property, support, and finances, whether your marriage has just begun or you’re updating your plans along the way.

A married couple reviewing paperwork at a table

Why now?

Moments when married couples make a postnup

  • Your financial picture changed

    A business took off, an inheritance arrived, or incomes diverged. A postnup updates your plan to match your real life, not the life you had on your wedding day.

  • You didn’t get a prenup

    You were busy planning a wedding and missed a step. A postnup gives you the same clarity on a different timeline, and making it together now is far easier than untangling things later.

  • You want to strengthen your marriage

    Many couples find that building a postnup reduces financial anxiety and improves communication. Both partners finally know exactly where they stand and what they’ve agreed.

  • You’re going through a big change

    Buying property, a career change, kids, or approaching retirement. Transitions shift financial dynamics, and an agreement keeps you deciding together.

A common misconception

“A postnup means one of us
is planning to leave”

The worry

“If we’re already married and happy, bringing up a postnup will make it sound like I have one foot out the door.”

What couples actually find

Couples who build a postnup together most often describe relief, not distance.

Putting your shared plan in writing removes a quiet source of financial stress and replaces it with a decision you made as a team. It’s maintenance for a marriage, not a warning sign for one.

An illustrative example

Priya’s side project became a real
business, two years after the wedding.

Priya and Marc married without a prenup. A year in, Priya’s side project turned into a growing company.

Without a postnup

Neither of them had thought about what would happen to it if they ever separated, and the uncertainty quietly weighed on both of them.

With a postnup

Priya and Marc decided together how the business and its growth should be treated, while things were good and they were on the same team. The conversation was clarifying, not divisive, and the plan now matches the life they actually have.

Made for your life

What your postnup can
cover

The same ground as a prenup, updated for where you are now, and tailored to your province.

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  • Property division terms that reflect today, not the wedding day
  • Spousal support expectations, including whether it applies
  • Businesses started or grown during the marriage
  • Inheritances and gifts received since you married
  • Pensions, retirement plans, and the family home
  • Debts taken on during the marriage, and even your pets

Province-specific by design

Postnup law is provincial.
Your agreement is too.

  • Ontario

    Ontario’s Family Law Act lets married couples make a marriage contract during the marriage. It can adjust the default property equalization rules and set support terms, with full financial disclosure from both partners.

    Ontario postnup agreements
  • British Columbia

    BC’s Family Law Act allows spouses to agree on property division and support at any time. A postnup can replace the default equal division of family property with terms you both choose.

    BC postnup agreements
  • Alberta

    Alberta recognizes agreements between spouses under the Family Property Act. Both people need independent legal advice to ensure the agreement is enforceable.

    Alberta postnup agreements

Make it even stronger with independent legal advice

Each partner reviewing the finished agreement with their own lawyer is required in some provinces, recommended everywhere. Jointly’s partner lawyers make the review affordable and efficient, with flat fees shown up front in the portal.

How ILA works

“My husband and I made an agreement through Jointly. It allowed us to discuss different scenarios that we had never thought about before.”

— Taylor

Postnup questions

Frequently asked

  • Is a postnup the same as a prenup?

    Essentially yes, with one difference: timing. A prenup is signed before the wedding, a postnup after. They cover the same ground, and the requirements for making them properly (honest disclosure, no pressure, proper signing) are similar.

  • Will my spouse think I want a divorce?

    Most couples find the opposite. A postnup is a structured money conversation, and couples often report less financial anxiety afterwards because both partners finally know exactly where they stand. Jointly’s course and worksheets are designed to make that conversation a shared project.

  • We already have a prenup. Can we still make a postnup?

    Yes. A postnuptial agreement can update or replace an earlier agreement when circumstances have changed, and Jointly walks you through it.

  • How long does a postnup last?

    Until you change it, together. Good practice is revisiting your agreement after major life events: a home, a child, a business, a big career move. Jointly is built to make those updates straightforward.

More questions? Visit the full FAQ