🌈 Known Sperm Donor Agreements: What to Put in the Contract Beyond the Legal Basics

Using a known sperm donor (a friend, family member, or other identified person rather than a bank donor) is an option many LGBTQ+ and single intended parents consider. It can offer benefits a bank donor cannot: a personal relationship, known family medical history, and a clear answer for the child years later about who provided the genetics.

It also requires more careful legal and emotional preparation than a bank arrangement. The legal parentage piece gets most of the attention, and rightly so, but the best known donor agreements go well beyond legal basics. They address the relationships, expectations, and changes that real life produces.

This article is for intended parents and known donors who want to think through what a complete agreement should cover.

Why a Written Agreement Matters

Known donor arrangements have historically been a source of family heartbreak when expectations diverged. The donor who said "I do not want to be a parent" may, years later, want a relationship with the child. The intended parents who said "we will share photos and updates" may find the donor wants more contact than they expected. The child, eventually, may have their own desires that neither side anticipated.

A detailed written agreement does not prevent every difficulty, but it dramatically reduces misunderstanding and provides a framework for navigating change.

The Legal Parentage Section

The foundation of any known donor agreement is clarity about legal parentage. In most jurisdictions, this requires:

• A written agreement signed before insemination
• Clinic-mediated insemination (rather than at-home insemination) in many jurisdictions, to clarify that the donor is acting as a donor rather than as a parent
• Compliance with provincial or state assisted reproduction law
• Often, supplementary court action (such as a declaration of parentage)

In Canada, the Assisted Human Reproduction Act and provincial parentage laws (Ontario's All Families Are Equal Act, BC's Family Law Act, Quebec's Civil Code provisions) provide frameworks. In the US, parentage law varies by state.

Do not use a template agreement from the internet. Work with a fertility lawyer in your jurisdiction. The cost (typically $1,500-$4,000) is small compared to what it protects.

Contact and Relationship Expectations

This is where many known donor relationships actually run into trouble, because the legal section is rarely the source of conflict. The relationship section is.

A strong agreement addresses:

• Will the donor have contact with the child? If yes, what does that look like? Visits? Photos? Holidays? How often?
• What name will the child call the donor? First name? Uncle? Some other term?
• Will the donor be present at the birth?
• How will the donor be introduced to extended family on both sides?
• What happens if the donor moves to a different city or country?
• What happens if the intended parents move?
• What happens if the donor has children of their own later?
• What happens if the donor's partner status changes (new partner, marriage)?

These conversations are not always comfortable. Having them before insemination is far easier than having them later under stress.

Disclosure to the Child

Research on donor-conceived children is consistent: early, ongoing, age-appropriate disclosure is associated with better outcomes than late or no disclosure. With a known donor, disclosure is generally easier because the donor is a real person the child can know.

A strong agreement addresses:

• When will the child be told their origin story?
• How will the donor's identity be presented to the child?
• Will the donor participate in disclosure conversations?
• What language will be used to describe the donor?

Donor Siblings

Known donors often donate to only one family, but some donate to multiple families. If multiple families are involved, the agreement should address:

• Will the children know about each other?
• Will the families have contact?
• How will the donor manage relationships across families?
• What information will be shared if a half-sibling situation arises?

Genetic Health

Known donors are not subject to the same medical and genetic screening as bank donors. A strong agreement addresses:

• Has the donor completed full medical history and genetic screening?
• Will the donor share updated medical information as it emerges over time?
• What happens if the donor or a biological child develops a heritable condition?
• Will the donor be available for medical history questions later in the child's life?

Most fertility clinics require donors to complete medical and genetic screening regardless of known or anonymous status. Do not skip this even if the donor is a close friend.

Financial Considerations

A strong agreement addresses any financial questions:

• Is the donor compensated, and if so, how much? (Note: in Canada, compensation beyond reimbursement is generally prohibited under the Assisted Human Reproduction Act.)
• Who pays for screening, freezing, and any medical procedures?
• Will the donor have any financial obligation to the child? (Generally no in properly structured arrangements, but document explicitly.)
• What happens if the child requires expensive medical care later?

Life Changes

Life happens. A strong agreement anticipates:

• Death of the donor (before or after the child is born)
• Death of an intended parent
• Separation or divorce of intended parents
• Donor relationship changes (new partner, marriage, divorce)
• Significant illness on either side
• Estrangement or relationship breakdown between donor and intended parents

It is impossible to anticipate every scenario, but addressing the common ones in writing reduces the likelihood of crisis.

The Conversation Before the Contract

The most successful known donor arrangements involve multiple conversations between donors and intended parents before contracts are drafted. Many fertility-aware therapists offer facilitated sessions specifically for this purpose. The Fertility Link maintains broader LGBTQ+ family-building guidance at /guides/lgbtq.

Useful conversation prompts:

• Why are you choosing this person as a donor / why are you saying yes to being a donor?
• What is your vision of your role / their role in the child's life?
• What is your worst-case scenario, and how would you want to handle it?
• What does your family of origin think?
• What does your partner (if applicable) think?
• What if the child grows up and wants a closer relationship with the donor than originally planned? What if they want less?

These conversations are not always easy, but doing them before insemination is far easier than navigating their absence later.

Why Some Known Donor Arrangements Become Bank Donor Arrangements

Some intended parents start exploring known donor options and ultimately choose a bank donor instead. This is a valid choice. The legal simplicity, professional medical screening, and absence of relationship complexity are real advantages.

This is also not a failure of any particular relationship. It is often a recognition that the emotional complexity of a known donor arrangement is more than a particular family wants to navigate.

Working With Professionals

A strong known donor arrangement typically involves:

• A fertility lawyer in your jurisdiction
• A fertility clinic that supports known donor arrangements
• A fertility-aware therapist or counselor for facilitated conversations
• Potentially a financial planner

The Fertility Link Navigator can help connect you with appropriate professionals in your region.

A known donor arrangement built on a clear agreement, honest conversations, and professional support can be a beautiful path to family building. The work happens before insemination. Done well, it sets up everyone involved for the long term.