Known Donor, Donor Plus or Co-parent: What Is the Difference?

People often use the same word for very different arrangements. The most important distinction is not the label—it is who intends to parent, who makes decisions and what relationship the child is expected to have with each adult.

Known donor

A known donor is identifiable to the intended parent or parents and may also be known to the child. The intended parent household normally expects to carry parenting responsibility. Contact may range from occasional updates to regular visits.

“Known” does not automatically determine legal parenthood. Law can depend on the country, marital status, conception route, clinic status and other facts.

Donor Plus

Donor Plus is a useful GreatTogether description for a donor who expects some continuing personal involvement without sharing everyday parenting. Examples include several visits a year, monthly contact or participation in selected family moments.

The label has no universal legal meaning. The agreement should describe the actual conduct: frequency, boundaries, information sharing, introductions and decision-making.

Co-parent

A co-parent intends to participate in raising the child and usually expects a meaningful role in decisions, care, time and responsibility. Co-parenting requires much deeper alignment about location, money, education, values, conflict and new partners.

Do not describe an arrangement as co-parenting merely because the donor will be present. Likewise, do not use “donor” to hide an intention to parent.

Compare the reality, not the label

This table describes intentions, not legal outcomes. Current local law takes priority over labels and private expectations.