Architects and engineers carry a financial profile that most prenup guides never touch. A licensed design professional entering marriage brings a complex web of assets — a professional license earned through years of study, an ownership stake in a firm whose value is partly tied to their personal reputation, deferred project fees on long-running contracts, and intellectual property embedded in design work. A prenup for architects and engineers isn't just about protecting a savings account; it's about protecting the professional infrastructure you've built and will keep building throughout the marriage. Here's what you need to know before you say "I do."
Why Standard Prenup Advice Falls Short for Design Professionals
Most prenup content focuses on real estate, retirement accounts, and business equity in the abstract. Architects and engineers face a more layered picture. Your financial life includes assets that are hard to value, slow to pay out, and deeply intertwined with your personal identity as a licensed professional. Courts across the US and Canada handle these assets very differently depending on jurisdiction — which makes planning ahead all the more important.
In the United States, some states are "community property" states, meaning that most property acquired during the marriage is considered marital and divisible in divorce. Other states are "equitable distribution" states, where assets held by either party — acquired before or during the marriage — may be equitably divided at the time of divorce. For design professionals, this distinction matters enormously, because the assets at stake are rarely straightforward.
Your Professional License: Is It Marital Property in a Prenup for Architects and Engineers?
This is the question that surprises most architects and engineers. You spent years earning your architectural license, your PE stamp, or your state board certification. Can a spouse claim a share of it in divorce? Note that these are distinct credentials: an architectural license is issued by a state licensing board (with NCARB coordinating reciprocity), while a PE stamp is issued by a separate state engineering board. Voluntary association memberships — such as AIA membership — are not licenses and are generally not treated as divisible assets in the same way.
A few states treat educational degrees and professional licenses earned or awarded during the marriage as marital property subject to division in divorce, by awarding the non-licensed spouse a share of future income earned by practicing in that profession.
New York historically went furthest in this direction. Under O'Brien v. O'Brien, a professional license or advanced degree was treated as marital property, and courts would calculate "enhanced earnings" — the difference between income made possible by the license and what the spouse would have earned without it — as a divisible asset. However, this rule was significantly curtailed when New York amended its Domestic Relations Law, effective 2016. Under the amended statute, professional licenses and degrees are no longer treated as marital property subject to equitable distribution; instead, the non-titled spouse's contributions may be recognized through maintenance or other awards. If you are in New York, consult a family law attorney familiar with post-2016 case law, as the pre-amendment rule is no longer current.
In California, a professional education or license is not a divisible community property asset, even if acquired during marriage — however, the community may have reimbursement rights for community property contributions that substantially enhanced earning capacity. Pursuant to California Family Code §2641, the community will receive a dollar-for-dollar reimbursement for funds paid toward the education of one spouse, absent circumstances that would render such a result unjust.
The practical takeaway: if marital funds — joint income, shared savings — helped pay for your licensure exams, continuing education, or graduate degree in architecture or engineering, your spouse may have a financial claim regardless of your state. A prenup can define upfront how those contributions are treated, eliminating years of expensive litigation.
Firm Ownership and the Goodwill Problem
Many architects and engineers own equity in a practice — a sole proprietorship, partnership, LLC, or S-corp. That equity creates one of the most contested issues in any professional's divorce: the valuation of goodwill.
Personal goodwill is typically associated with professional practices such as law, accounting, and architectural firms. The success of these ventures often depends on the skills and reputation of the individual practitioners. But a professional practice may also possess enterprise goodwill — for example, if it has strong name recognition, an established workforce, and client relationships that would survive the departure of any single principal.
Why does this distinction matter? Many jurisdictions treat personal goodwill as non-marital property not subject to division, while enterprise goodwill is considered marital property. Misattributing personal goodwill as enterprise goodwill can inflate the value of the business, leading to an unfair distribution of assets.
State-by-state treatment varies considerably and the precise breakdown is a moving target as courts continue to issue new decisions — practitioners should verify current law in their jurisdiction with a qualified family law attorney. As a general framework, some states treat both types of goodwill as marital property, some treat neither as marital property, and a significant number distinguish between the two, treating enterprise goodwill as marital and personal goodwill as separate. For example, in Texas, personal goodwill is regarded as separate property attached to the individual and not subject to division. California's treatment is more nuanced: while personal goodwill has historically been recognized as a distinct concept, courts applying In re Marriage of Finby and subsequent decisions have not always drawn a clean line, and the analysis is fact-specific. California-based design professionals should not assume a blanket personal goodwill exemption without reviewing current case law with counsel.
For an architect or engineer who built a firm largely on their own reputation — client relationships, award-winning design work, a personal brand — the personal goodwill argument may be strong in many jurisdictions. But without a prenup, you're leaving that argument to a judge and dueling expert witnesses.
A well-drafted prenup can define how your firm equity is classified, establish a valuation methodology agreed upon in advance, and prevent a forced sale or buyout that could destabilize the practice. It is worth noting that valuation methodology selection is itself contested: income capitalization and multiples of revenue can produce dramatically different firm values depending on assumptions used, and opposing experts routinely reach divergent conclusions. Agreeing on a methodology — and ideally a neutral valuator — in the prenup itself can prevent that dispute from becoming the central battleground of a divorce.
Deferred Project Fees: The Hidden Marital Asset in Engineer and Architect Prenups
Architecture and engineering projects often span years. A major infrastructure contract, a hospital design, or a mixed-use development may generate fees that are earned during the marriage but paid out after separation. These deferred receivables are a category of asset that almost no generic prenup guide addresses — yet they can represent hundreds of thousands of dollars.
Courts have grappled with analogous issues in other professions. Treatment of unliquidated fee arrangements — fees earned but not yet received — varies by jurisdiction, and while many courts have held such fees constitute marital property when the underlying work was performed during the marriage, this is not a settled universal rule. The same logic is frequently applied to project fees in architecture and engineering: if the work was performed during the marriage, the fee may be considered a marital asset even if the check arrives years later.
A prenup for architects and engineers should address this directly. Options include defining a cutoff date for fee attribution, agreeing on a formula that allocates pre-marital versus marital work, or specifying that fees tied to projects begun before the marriage remain separate property. This is closely related to how courts treat other forms of deferred compensation — see our deeper discussion in Does a Prenup Cover Future Earnings? and Prenups and Stock Options: Protecting Equity Before Marriage.
Intellectual Property in Design Work
Architects and engineers routinely create intellectual property: proprietary structural systems, design methodologies, software tools, and copyrighted drawings. If one or both spouses started a business after the couple got married, the business is likely marital property, meaning each spouse may have a right to a share of its value. The same principle can extend to IP developed during the marriage using marital time and resources.
One critical nuance that affects how a prenup should be drafted: under US copyright law, works created by employees within the scope of their employment are "works made for hire," owned by the employer — not the individual employee. If you work for a firm, the copyright in your design drawings likely belongs to that firm, not to you personally, and there may be little individual IP to protect in a prenup. The picture changes significantly for self-employed architects and engineers or firm owners, who may hold copyrights in their own name. Your prenup should reflect which scenario applies to you, and should be updated if your employment situation changes.
Your prenup can specify that IP you develop as a self-employed professional or firm owner — whether a patented building system or a licensed design process — remains your separate property, or establish a formula for compensating your spouse for their indirect contribution to its creation. For a broader look at how prenups handle creative and intellectual assets, see How Can a Prenup Protect Future Royalties or Intellectual Property? and How to Protect Your Intellectual Property in a Prenup.
Professional Liability: A Frequently Overlooked Concern
Design professionals face a liability exposure that most prenup guides ignore entirely. Pending malpractice claims or errors and omissions (E&O) insurance obligations — including tail coverage that extends years beyond the end of a policy period — can represent significant contingent liabilities at the time of divorce. A claim arising from work performed during the marriage may not surface until after separation, and the financial exposure can affect both parties' net worth calculations.
A well-structured prenup should address how professional liability claims are allocated, who bears the cost of tail coverage if the practice is wound down or transferred, and whether contingent liabilities are factored into any firm valuation agreed upon in the agreement. This is an area where coordination between your family law attorney and your professional liability insurer is essential.
The Canadian Picture: Marriage Contracts for Design Professionals
Canadian architects and engineers face a parallel set of concerns, governed by provincial law rather than federal statute. The discussion below applies to Ontario only. Quebec operates under a civil law regime with fundamentally different matrimonial property rules — spouses may be subject to either the partnership of acquests or separation of property regime, and the analysis differs materially from common law provinces. British Columbia's Family Law Act also contains distinct provisions. Design professionals in any Canadian province outside Ontario should consult a family law lawyer in their jurisdiction.
In Ontario, the framework is the Family Law Act. If spouses separate and divorce without a marriage contract, their property will normally be allocated according to Ontario law. In general terms, the law requires an equalization of the net family property of the parties, ordinarily calculated at the date of separation — the spouses calculate the increase in their net worth since marriage and equalize the difference.
Ontario's approach creates a strong default property regime that divides the growth in net worth equally. Without a marriage contract, the spouse whose net worth increased more during the marriage pays half the difference to the other spouse as an "equalization payment." For a design professional whose firm value has grown substantially during the marriage, that equalization payment can be enormous.
Section 52 of Ontario's Family Law Act explicitly permits spouses to enter into marriage contracts that differ from or supplement the Act and to agree on the ownership or division of property either during or at the end of the marriage. That gives Ontario design professionals significant flexibility to define how firm equity, deferred fees, and professional goodwill are treated.
However, Section 56(4) of the same Act gives courts the power to set aside a marriage contract — or a provision within one — where a party failed to disclose significant assets or liabilities before signing, where a party did not understand the nature or consequences of the contract, or where provisions relating to children's support or custody are found to be unconscionable. Full financial disclosure, including firm financials and outstanding project contracts, is not optional; it is the foundation on which an enforceable marriage contract rests. For a full comparison of the Canadian and US frameworks, see What Is a Marriage Contract in Canada? How It Differs from a US Prenup.
Key Clauses for a Prenup for Architects and Engineers
Whether you're in the US or Canada, a prenup tailored to a licensed design professional should address the following:
Firm Equity and Valuation Method
Specify whether your ownership interest in a practice is separate or marital property, and — critically — agree on a valuation methodology. Locking in an approach and, where possible, a neutral valuator prevents competing expert valuations from driving up litigation costs. Be aware that different methodologies (book value, income capitalization, revenue multiples) can produce dramatically different results, which is precisely why agreeing in advance matters.
Personal vs. Enterprise Goodwill
Explicitly classify your personal goodwill — your reputation, client relationships, and design recognition — as separate property. This is especially important in states and provinces that might otherwise treat it as divisible, and in jurisdictions like California where the line is not always clearly drawn by courts.
Deferred and Contingent Fees
Include a clause addressing project fees that are earned during the marriage but received after separation. Define whether they are allocated by the date work was performed, the date the contract was signed, or another agreed formula.
Pre-Marital Firm Value
If you already own equity in a firm when you marry, document its value at the date of marriage. In Ontario, there is an exemption for the value of property owned at the date of marriage. In US equitable distribution states, a similar baseline can be established contractually.
Intellectual Property
Identify existing and future IP — patents, copyrights in design drawings you own as a self-employed professional or firm owner, proprietary software — and specify ownership terms. Confirm whether works-made-for-hire rules affect what IP you actually hold individually before drafting this clause.
Professional Liability Allocation
Address how pending or future malpractice claims and E&O tail coverage costs will be treated if the marriage ends, particularly if the practice is transferred or dissolved as part of a settlement.
Professional License Education Costs
If marital funds will contribute to continuing education, licensure maintenance, or advanced degrees during the marriage, address whether those contributions create a reimbursement right or are treated as ordinary marital expenses.
Timing and Process
Equitable division always requires a fact-specific analysis of the circumstances of each divorcing couple, and there are few hard and fast rules. That unpredictability is precisely why a prenup is so valuable for design professionals — it replaces judicial discretion with a negotiated agreement made when both parties are on good terms.
Give yourself enough runway. Signing a prenup under time pressure can give a court grounds to question its validity. For guidance on timing, see Should You Delay Wedding Planning Until the Prenup Is Signed? and What's the Best Time to Bring Up a Prenup in a Relationship?.
Both parties should have independent legal counsel — this is a requirement in Canada and strongly advisable everywhere. Full financial disclosure is non-negotiable: disclose your firm's financials, outstanding project contracts, and any pending IP filings or liability claims. Concealing assets is the fastest way to have a prenup thrown out.
A prenup for architects and engineers isn't about distrust — it's about recognizing that your professional life is genuinely complex and that the default rules of divorce law were not written with design professionals in mind. The license you earned, the firm you built, and the fees you're still waiting to collect all deserve deliberate protection.
This article is for general information only and is not legal advice. Consult a qualified attorney in your jurisdiction.