How much does a postnuptial agreement cost (2026)?

The average cost for a lawyer to draft a postnuptial agreement is $900 [1]. The average cost for a lawyer to review a postnuptial agreement is $520 [2]. These cost points come from recent projects on the ContractsCounsel platform and are averages across all US states.

A postnuptial agreement, similar to a prenuptial agreement, is a legal contract that depicts how a couple will divide their assets if they get divorced. The main difference between a prenup and a postnuptial agreement is that the postnuptial agreement is signed after the couple has already wed.

When considering a postnuptial agreement, the primary question that most couples ask is how much will a postnuptial agreement cost. Let's explore this question and go over some general information about postnuptial agreements.

How Much Does a Postnuptial Agreement Cost?

When considering a postnuptial agreement, understanding the costs involved is crucial. On average, the cost to draft a postnuptial agreement is around $900, while the cost to review an existing agreement is approximately $520, according to recent ContractsCounsel marketplace data. These costs can vary based on several factors, such as the complexity of the agreement, the couple’s specific requirements, and the location of the attorney.

Factors Influencing Costs

1. Complexity of the Agreement: More detailed agreements, such as those involving significant assets, business interests, or specific terms like alimony, may require additional time and expertise, leading to higher costs.
2. Location: Attorneys in areas with a higher cost of living or specific legal requirements may charge more. It’s important to choose a lawyer familiar with state-specific laws to ensure the agreement is enforceable.
3. Fee Structures:
   • Hourly Rates: Many attorneys charge hourly for drafting and reviewing agreements. Rates typically range from $250 to $350 per hour, depending on the attorney’s experience and the local market.
   • Flat Fees: Some attorneys offer flat fee rates for drafting or reviewing a postnuptial agreement, with an average flat fee cost of around $800. This structure can be beneficial for clients looking for upfront cost certainty, but it’s important to verify what is included in the flat fee, such as consultations or revisions.

Hiring an experienced family attorney is essential for drafting or reviewing a postnuptial agreement, as they ensure that the agreement is legally enforceable and tailored to your needs. Posting a project on ContractsCounsel's marketplace allows you to receive flat fee bids from vetted family lawyers, ensuring you get professional assistance at a transparent rate.

What's Typically Included in a Postnuptial Agreement

Postnuptial agreements will vary depending on the couple. When drafting this agreement, a couple's assets, property, children both together or from previous relationships, and personal wishes will all come into play.

State laws will govern what can and cannot be enforced through a postnuptial agreement, so as long as a term doesn’t violate any laws, the couple is free to include what they want in their postnuptial agreement.

Some standard terms that you will find in most postnuptial agreements include:

• Property division in a divorce: Defining how property will be divided in a divorce is usually the main reason for executing a postnuptial agreement. Division of property can include who will have rights to the house, vehicles, a shared business, or any other assets obtained before or after the couple was wed.
• Alimony: Called spousal support in some states, alimony is financial support made by one spouse to the other. This usually occurs if one spouse worked while the other stayed home to raise a family. The postnuptial agreement should specify the amount of alimony agreed upon and how long the payments will be made.
• Marital Debts: The postnuptial agreement should dictate how marital debts will be divided in a divorce. This could be a mortgage loan, credit card debt, student loans, or a car payment.
• Asset distribution after death: A postnuptial agreement can include terms about assets if one spouse dies while still married. It can get more detailed to layout how property and assets are distributed if a spouse dies while going through a divorce.

Common Scenarios for Seeking a Postnuptial Agreement

Couples may seek a postnuptial agreement for a variety of reasons beyond simply planning for divorce. Understanding when and why these agreements might be necessary can help couples decide if the investment is worthwhile. Some common scenarios include:

1. Change in Financial Circumstances: When one spouse receives a significant inheritance, a large bonus, or an increase in business revenue, a postnuptial agreement can help protect those assets and clarify their division in case of a divorce.
2. Business Ownership: If one spouse starts a new business or becomes a partner in an existing one after the marriage, a postnuptial agreement can outline ownership rights and ensure the business remains separate property.
3. Inheritance and Family Assets: In some cases, families may require a postnuptial agreement to protect family heirlooms or assets passed down to one spouse during the marriage. These agreements can prevent disputes over these items in the event of a separation.

Are Postnuptial Agreements Enforceable?

When properly drafted and executed, postnuptial agreements are generally enforceable, but the enforceability depends on meeting specific legal criteria. Courts closely examine these agreements to ensure they are fair, voluntary, and in compliance with state laws. Understanding what courts look for when evaluating enforceability can help couples create a legally sound agreement.

Key Enforcement Factors

1. Fairness: Courts assess whether the terms of the agreement are fair and reasonable at the time of signing and at the time of enforcement. If an agreement is found to be grossly one-sided or unconscionable, a judge may declare it invalid. It’s crucial for both parties to negotiate terms that reflect their mutual interests and financial realities.
2. Voluntariness: For a postnuptial agreement to be valid, both parties must sign voluntarily. Courts look for any evidence of coercion, manipulation, or undue pressure. If one spouse can prove that they were pressured or misled into signing, the agreement may be invalidated. To avoid this, it’s recommended that each spouse consults their own attorney, ensuring both parties are fully informed before signing.
3. Full Disclosure: Courts require full and honest disclosure of assets, debts, and financial obligations from both spouses. If it’s discovered that one spouse concealed assets or information during the drafting process, the agreement may be deemed unenforceable. This transparency builds trust and ensures that both parties are making informed decisions.
4. Proper Execution: To be enforceable, a postnuptial agreement must meet specific execution requirements. This includes being in writing, signed by both parties, and, in many states, notarized or witnessed. Failure to comply with these formalities may render the agreement unenforceable in court.

Examples of Postnuptial Agreement Projects

Postnuptial Agreement Drafting

Many couples will hire an experienced family attorney to draft a prenuptial agreement. An attorney can ensure that the document fits their needs and includes provisions about their assets, property, family, and debts.

Postnuptial agreement drafting will usually involve a consultation first. Then, based on the couple's needs, the attorney will draft a postnuptial agreement. The couple can then review the contract to ensure that no revisions are required. Postnuptial agreement costs will vary based on the complexity of the agreement.

Postnuptial Agreement Review

In some cases, a couple doesn't need a new postnuptial agreement drafted; they just need their current agreement reviewed. This could be because an older postnuptial agreement needs to be updated with recently acquired assets or something changed.

Postnuptial Agreement Disputes

Although postnuptial agreements are legal contracts, they can be disputed in court. If any of the following basic requirements are not met, a court may rule that a postnuptial agreement is unenforceable.

• In Writing: A postnuptial agreement must be in writing to be valid.
• Voluntary: Both parties must have voluntarily agreed to sign the contract without coercion, threats, or manipulation.
• Full Disclosure: At the time of the agreement, both parties must fully and honestly disclose their assets, debts, and any other factors addressed in the postnuptial agreement.
• Fairness: The agreement must be fair and cannot be blatantly one-sided or unconscionable.
• Valid Execution: Both parties must sign the agreement, neither party can be under the influence of alcohol or drugs, and many states require the signatures to be notarized.

Some states may require witnesses or other terms to make a postnuptial agreement enforceable. If you are unsure of your state's laws, you should contact a knowledgeable family lawyer.

To illustrate the importance of a well-drafted agreement, consider these scenarios:

1. Example 1: Failure to Disclose Assets

   In a recent case, a spouse challenged a postnuptial agreement after discovering that their partner had hidden several investment accounts during the drafting process. The court ruled in favor of the challenging spouse, stating that the agreement was invalid due to the lack of full disclosure. This example highlights why transparency and honesty are critical when drafting these agreements.

2. Example 2: Allegations of Coercion

   In another case, one spouse claimed they were pressured into signing the agreement shortly after learning of the other spouse’s affair. The court scrutinized the circumstances surrounding the agreement’s signing and concluded that the spouse had indeed been coerced. As a result, the agreement was thrown out, underscoring the need for both parties to willingly and freely enter into the contract.

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How Do Lawyers Charge for a Postnuptial Agreement?

If you hire a family lawyer to draft or review a postnuptial agreement, you will most likely be charged hourly for the attorney's services. However, some attorneys are switching to a flat fee rate schedule to charge for document drafting.

Pros and Cons of Flat Fee vs. Hourly Rates

Each option has its advantages and disadvantages, depending on the complexity of the agreement and the client’s needs.

• Hourly Rates
  • Pros: With an hourly rate, clients only pay for the time spent on their case, which can be cost-effective for straightforward agreements that don’t require much revision. Clients also benefit from detailed consultations and the ability to tailor the agreement more extensively.
  • Cons: Costs can become unpredictable, especially if the agreement requires multiple revisions or consultations. Hourly rates typically range from $250 to $350 per hour, making it difficult to estimate the total cost upfront.
• Flat Fees
  • Pros: Flat fees provide clarity and upfront cost certainty, allowing clients to budget effectively. This structure is often suitable for couples with a clear idea of their needs, as it covers document drafting and limited revisions within a fixed price, usually averaging around $800.
  • Cons: Clients need to confirm what the flat fee includes. If additional meetings or extensive revisions are needed, they may incur extra charges beyond the initial fee, potentially negating the cost advantage.

Get Help with a Postnuptial Agreement

Do you need help with a postnuptial agreement project? If so, post a project in ContractsCounsel's marketplace to receive flat fee bids from family lawyers to handle your project. All lawyers on the ContractsCounsel's platform are vetted by our team to make sure you are provided with top-tier service.

References

1. ^ Based on real pricing data from ContractsCounsel's marketplace. Last updated October 1, 2026.
2. ^ Based on real pricing data from ContractsCounsel's marketplace. Last updated October 1, 2026.