What Is a Postnuptial Agreement and Do You Need One?

April 10, 2026

Marriage is a partnership, but like any relationship, it can face unexpected turns. Whether you’ve been married for months or years, circumstances change, sometimes in ways that affect your finances, responsibilities, or even your future goals. That’s where a postnuptial agreement can help.


A postnuptial agreement is a legal contract created after marriage that outlines how assets, debts, and responsibilities will be handled if the marriage ends. It provides clarity, security, and peace of mind, especially during challenging times.

Here’s how postnuptial agreements work, when they might be useful, and how collaborative divorce principles make the process smoother and less stressful.


Understand What a Postnuptial Agreement Covers


A postnup can outline:


  • How the property will be divided
  • What happens to debts
  • Plans for spousal support (alimony)
  • Provisions for children from previous relationships


Unlike prenups, postnups are created after the wedding, and often come into play when couples want to stay married but need legal clarity.


Identify If You Need One


You may want a postnup if:


  • Your financial situation has significantly changed (inheritance, new business, etc.)
  • There’s been a breach of trust, such as infidelity
  • You’re in a strained marriage but not ready for divorce
  • You want to clarify financial roles/responsibilities


Use a Collaborative Approach


Creating a postnuptial agreement doesn’t have to be adversarial. With collaborative divorce methods:


  • Both spouses work together with trained professionals
  • A neutral financial expert can help sort assets/debts
  • Each person is guided by their own attorney, committed to respectful negotiation


Draft the Agreement Together


Work with a legal professional experienced in postnuptial agreements. The process should:


  • Be transparent and honest
  • Include full financial disclosures
  • Reflect both parties’ input and concerns


Sign and Notarize


Once both parties agree and understand the terms, sign the agreement in front of a notary. This makes it legally binding and enforceable.


A postnuptial agreement can bring structure and reassurance to a marriage that’s evolving. Whether you’re trying to protect assets, clarify responsibilities, or rebuild trust, collaborative divorce techniques offer a respectful, non-confrontational way to move forward.


Making informed legal decisions is easier when you understand your options.


If you’re considering a postnup and need legal guidance, reach out to our experienced team at Shea Stevens Law, LLC at 913-717-0797 for a consultation. During this session, you’ll have the opportunity to discuss your situation, ask questions, and learn more about how collaborative divorce methods can support you.

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