Fertility treatment touches some of the most personal decisions a couple makes together — and some of the most expensive. When a marriage ends while embryos are still frozen or treatment is still ongoing, the financial and legal fallout can be staggering. A prenup addressing fertility treatment and IVF costs is one of the few tools that lets couples set those terms in advance, before grief and conflict make clear thinking impossible.
The Financial Reality of IVF
Before getting into how a prenup can help, it's worth understanding the numbers at stake.
A single IVF cycle in the United States — including clinic procedures, bloodwork, fertility medications, and embryo genetic testing — typically costs between $12,000 and $25,000, depending on the clinic, region, and any add-on services selected; cycles with additional procedures or medications can push costs higher. That's a single attempt. Most couples require two to three cycles to achieve pregnancy, meaning total out-of-pocket exposure can easily reach $50,000 to $75,000 or more before a successful birth. Storage fees for frozen embryos add hundreds of dollars per year — indefinitely.
What About Insurance?
In the US, coverage is inconsistent. Some states require health plans to cover certain fertility services, but many plans cover nothing at all.
In Canada, the landscape is a patchwork with no national framework. Ontario has historically funded one IVF cycle for eligible patients and has no age or cycle limit on IUI, though its program has undergone policy and funding changes — couples should confirm current OHIP+ eligibility criteria directly with a fertility clinic or the provincial health authority before relying on any published figure. Quebec has offered public IVF funding for women up to age 41, including medications and short-term embryo storage, but that program has also faced significant funding disputes and policy revisions; again, current eligibility should be verified with Régie de l'assurance maladie du Québec. British Columbia, Alberta, Saskatchewan, and the territories generally do not cover IVF or IUI procedure costs.
The takeaway: a significant portion of fertility treatment costs is likely to come out of a couple's own pocket, regardless of where they live.
Why a Prenup Should Address Fertility Treatment Costs
When couples pay for IVF jointly during a marriage and then divorce, several financial questions arise with no obvious answer:
- Who bore the greater financial burden — and does that matter?
- Were the funds used separate property (an inheritance, pre-marital savings) or marital assets?
- If treatment is still ongoing at the time of separation, who is responsible for future cycle costs?
- Who pays ongoing embryo storage fees?
Without a prenup, a divorcing couple is at the mercy of their state or province's default property division rules, which were not designed with fertility treatment in mind. A well-drafted prenup can address all of these questions explicitly.
Allocating Past IVF Divorce Costs
If one spouse funded IVF cycles using pre-marital savings or an inheritance, a prenup can clarify that those funds remain separate property and are not subject to division. This matters because, in many US states and Canadian provinces, commingling separate funds with marital funds can cause them to lose their separate character. (See our detailed overview of which assets a prenuptial agreement can protect for a broader explanation of how this works.)
Allocating Future Treatment Costs
A prenup can also address what happens to planned but not-yet-completed treatment if the marriage dissolves. For example, the agreement might specify:
- That each party is responsible for 50% of costs incurred up to the date of separation
- That one spouse assumes sole financial responsibility for any cycles initiated after a certain date
- That storage fees for frozen embryos are split equally until a final disposition decision is made
These provisions don't require predicting the future — they just require having an honest conversation about fairness before emotions are running high.
Tax Implications of IVF Cost Allocation
A dimension many couples overlook is how IVF cost provisions in a prenup interact with tax treatment. In the US, qualifying fertility treatment expenses may be deductible as medical expenses to the extent they exceed the applicable adjusted gross income threshold — but only for the taxpayer who actually paid them. If a prenup requires one spouse to reimburse the other for IVF costs, that reimbursement could potentially be treated as taxable income to the recipient rather than a medical expense, depending on how it is structured. Similarly, amounts paid through an HSA or FSA are tax-advantaged only when used by the account holder for their own qualifying expenses; a prenup that reallocates those costs post-separation may create complications. These are fact-specific questions that require input from both a family law attorney and a tax professional.
The Frozen Embryo Problem: Who Owns Them in a Divorce?
This is where a prenup fertility treatment IVF discussion gets genuinely complicated. Frozen embryos occupy a legal space that courts across the US and Canada are still actively working out.
The Legal Landscape in the US
Courts in the United States generally apply one of three approaches to frozen embryo disputes:
Contract enforcement: When couples create embryos, they typically sign agreements with their fertility clinics outlining what will happen to embryos. Courts in many states treat these documents as legally binding contracts.
Balancing of interests: Courts weigh each party's interest in using or not using the embryos, considering factors like age, other fertility options, and the circumstances of the divorce.
Contemporaneous mutual consent: Courts presume equality between the parties and allow either party to change their mind despite any preexisting agreement, declining to impose a disposition outcome.
The state-by-state variation is dramatic. California applies contract — not child custody — law to frozen embryo disputes and requires fertility providers to have patients complete an advance directive for embryo disposition, including what should happen after death or divorce; courts enforce these directives as binding contracts. Oregon similarly tends toward a contractual framework.
New York's approach is more nuanced. Courts there have not adopted a pure property classification; instead, they have applied a balancing-of-interests test. In Kass v. Kass (1998) and subsequent decisions, New York courts have generally enforced prior agreements between the parties while also weighing competing interests — a framework that is meaningfully different from California's straightforward contract enforcement model.
Louisiana, as of the time of writing, remains the only state with a statute defining an in vitro fertilized embryo as a "juridical person" with limited rights, meaning embryos there can only be used to develop a pregnancy and cannot be intentionally destroyed, sold, or used for research. Given the legislative activity prompted by recent court decisions in other states, couples should verify whether any additional states have enacted similar statutes, as this area is moving quickly.
In Arizona, when a couple disputes embryo disposition in a divorce, the court must award the embryo to the spouse who intends to develop it to birth, regardless of any existing contract between the parties.
Missouri reportedly passed legislation in 2024 addressing embryo custody guidelines in divorce proceedings. Because legislative tracking in this area is prone to error — bill numbers, passage dates, and signing status can all shift — couples in Missouri should confirm the current statutory framework directly with a licensed Missouri family law attorney rather than relying on any secondary source, including this article.
The legal terrain shifted further in early 2024 when the Alabama Supreme Court held that frozen embryos used in IVF qualified as children for purposes of the state's wrongful death laws. That ruling created immediate uncertainty for IVF providers and patients. Alabama's legislature responded quickly: in March 2024, Governor Kay Ivey signed HB 237, which provides civil and criminal immunity to IVF providers and patients for damage to or destruction of embryos. That legislation materially changed the practical impact of the court's ruling and allowed IVF services in the state to resume. The situation illustrates how rapidly this legal landscape can shift — and why any description of it, including this one, may be outdated by the time you read it.
The Legal Landscape in Canada
Canada's Assisted Human Reproduction Act (AHRA) governs some aspects of reproductive technology at the federal level but leaves significant gaps. While the AHRA requires the consent of both parties for embryo use or donation, it does not specify what happens when parties cannot agree — leaving open whether embryos must remain in storage indefinitely or may be destroyed. For Canadian couples, this uncertainty makes advance planning through a marriage contract even more important. Without clear direction in the agreement, embryos can end up in legal limbo for years.
Donor Agreements and Third-Party Reproduction
Couples using donor eggs, donor sperm, or a surrogate face an additional layer of complexity that a prenup alone cannot resolve. Donor agreements — contracts between the donors and the intended parents — establish parental rights and obligations separately from any prenuptial provisions. A prenup clause that purports to govern embryos created with donor material must be read alongside those donor contracts, which may contain their own disposition and consent requirements. In some jurisdictions, donor agreements are governed by statute; in others, they are purely contractual. Couples pursuing third-party reproduction should have a reproductive law attorney review all agreements together to ensure they are consistent and that no document inadvertently contradicts another.
What Happens to Embryos When a Spouse Dies?
This scenario arises more often than couples anticipate, and it is legally complex. If one spouse dies while embryos are in storage, questions immediately arise: Can the surviving spouse use the embryos unilaterally? Can the deceased spouse's estate assert any claim? Are children born from posthumously used embryos entitled to inherit?
The answers vary significantly by jurisdiction. Some states permit posthumous use of embryos if the deceased spouse gave explicit written consent; others do not. Estate law, probate timelines, and the terms of the fertility clinic's consent form all interact in ways that a prenup — or a standalone embryo disposition agreement — can help clarify in advance. A prenup or companion agreement should explicitly address whether the surviving spouse may use shared embryos after the other's death, under what conditions, and how any resulting child would be treated for purposes of the estate. This is one of the most important and most frequently overlooked provisions in fertility-related planning.
Can a Prenup Actually Govern Frozen Embryos?
The honest answer is: it depends on your state or province, and the law is still evolving. In states that treat embryos as property and enforce contracts, a prenup clause addressing disposition has a reasonable chance of being honored. In states like Arizona or Louisiana, where statute overrides private agreements, a prenup provision may carry little or no weight on disposition. In those jurisdictions, a standalone embryo disposition agreement with your fertility clinic, reviewed by a family law attorney, is an essential companion document. Even where enforceability is uncertain, a written record of the couple's mutual intent at the time of the agreement may influence how a court exercises its discretion.
Ambiguous language in fertility clinic consent forms has led courts to reach outcomes that couples never intended — an outcome that could often have been avoided with clearer, attorney-reviewed language in place before treatment began.
Embryo Disposition Agreements: A Standalone Tool
What a Prenup Fertility Treatment and Frozen Embryo Clause Should Cover
A thoughtfully drafted prenup can address the following, subject to what your jurisdiction allows:
Financial provisions (generally enforceable):
- How IVF costs paid before marriage are characterized (separate vs. marital property)
- How joint IVF costs are split if the marriage ends during treatment
- Who is responsible for ongoing embryo storage fees post-separation
- Whether reimbursement is owed if one spouse funded treatment primarily from separate assets
- How tax consequences of any cost reimbursement will be allocated between the parties
Embryo disposition provisions (enforceability varies by jurisdiction):
- What happens to frozen embryos in the event of separation, divorce, or the death of one spouse
- Whether either party may use the embryos unilaterally after divorce
- How disputes about embryo disposition will be resolved (e.g., mediation before litigation)
- Whether disposition instructions change if one party remarries or loses other fertility options
Attorneys should guide clients through an open discussion about their values and preferences regarding embryo ownership, use, and disposal — addressing questions such as whether one party has a medical history affecting fertility, whether the parties' ages affect future options, and whether either party can veto the use of the embryos in the future. These are not easy conversations. But they are far easier to have before a wedding than during a divorce.
Postnuptial Agreements for Couples Already in Treatment
Because many couples begin IVF after they are already married, a prenuptial agreement is not always an option. A postnuptial agreement — executed after the wedding — can serve many of the same functions: allocating costs already incurred, establishing responsibility for future cycles, and documenting embryo disposition preferences. Postnuptial agreements face somewhat higher scrutiny in some jurisdictions, and the enforceability standards vary, but a well-drafted postnup reviewed by independent counsel on each side is a meaningful planning tool. Couples who did not address fertility treatment in a prenup, or whose circumstances have changed significantly since signing one, should consider whether a postnuptial agreement is appropriate.
The Clinic Consent Form Is Not Enough
Many couples assume the disposition agreement they sign at their fertility clinic covers everything. It often doesn't. That document is typically signed under time pressure, without independent legal advice, and without full appreciation of its long-term implications. A prenup or standalone embryo disposition agreement drafted with legal counsel gives you the opportunity to think through scenarios the clinic form doesn't ask about — such as what happens if one spouse remarries, if one party is later diagnosed with a condition affecting fertility, or if the embryos represent the only viable path to biological parenthood for one party.
Most fertility clinics require a signed, legally binding document before treatment begins, and courts generally refer to this agreement when deciding embryo custody disputes — but that document and your prenup should be reviewed together to ensure they are consistent. Contradictions between the two can create exactly the kind of ambiguity that leads to litigation.
If you're also thinking about how a future child might affect your prenup more broadly, our article on how a prenuptial agreement is affected when you have children is worth reading alongside this one.
Frequently Asked Questions
Who owns frozen embryos in a divorce? There is no single answer. Ownership and disposition rights depend on your state or province, any contracts signed with your fertility clinic, and whether your jurisdiction treats embryos as property, applies a balancing test, or follows a statutory rule. Some states enforce prior written agreements; others allow either party to withdraw consent regardless of what was signed. A family law attorney in your jurisdiction is the only reliable source of guidance.
Can a prenup cover IVF costs? Yes. Financial provisions — including how past IVF costs are characterized, how future costs are split, and who pays ongoing storage fees — are generally enforceable in prenuptial agreements, subject to the standard requirements for prenup validity in your jurisdiction (voluntary execution, full disclosure, independent counsel, and so on).
What is an embryo disposition agreement? An embryo disposition agreement is a document — separate from or incorporated into a prenup — that specifies what should happen to frozen embryos in various scenarios: divorce, death of one or both parties, or mutual agreement to stop treatment. Some fertility clinics require a basic version as part of their intake paperwork, but a more comprehensive agreement drafted with legal counsel provides significantly greater protection.
Does a prenup override a fertility clinic's consent form? Not automatically. Courts look at both documents, and contradictions between them can create uncertainty. Ideally, your prenup and your clinic's consent form should be reviewed together by a reproductive or family law attorney to ensure they are consistent.
Practical Steps for Couples Planning Fertility Treatment
- Raise the conversation early. Ideally before you're already in the middle of a treatment cycle, when financial and emotional stress is highest.
- Consult a family law attorney in your jurisdiction. The rules on embryo ownership and IVF divorce costs vary dramatically. You need someone who knows your state's or province's current law — and who can flag recent legislative changes.
- Draft a prenup that addresses both the financial and dispositional questions. Even if the embryo disposition clause is not ultimately enforceable in your jurisdiction, it creates a record of your mutual intent that a court may consider.
- Review the clinic's consent forms with counsel before signing. Don't sign them in the waiting room without reading them carefully, and make sure they are consistent with any prenup or standalone agreement you have in place.
- Address the death scenario explicitly. Don't assume the clinic form covers it adequately. A specific written provision about posthumous use — or prohibition of use — is essential.
- Revisit the agreement if your circumstances change. A postnuptial agreement can update terms if you begin treatment after marriage, if earlier cycles didn't result in a pregnancy, or if your family-building plans have evolved in ways you didn't anticipate.
For couples who are also thinking about surrogacy as part of their family-building path, our guide on prenuptial agreements for surrogacy and intended parents covers the additional legal and financial considerations that apply.
A Note on Emotional Sensitivity
It would be a mistake to treat this purely as a financial planning exercise. Frozen embryos represent potential children to many couples. The person who contributed eggs may face a very different emotional reality than the person who contributed sperm — particularly if age or medical history means the embryos are their last realistic chance at a biological child. A good prenup process acknowledges this asymmetry and tries to build in fairness, not just legal protection.
That's also why the conversation should happen before treatment begins, not after. Once embryos exist, the stakes are different — and the conversation is harder.
This article is for general information only and is not legal advice. Laws governing IVF, frozen embryo disposition, and fertility treatment costs change rapidly — including through new legislation and court decisions — and this article may not reflect the most current statutes, regulations, or case law in your state or province. Do not rely on this article as a substitute for advice from a qualified family law or reproductive law attorney in your jurisdiction.