College costs are rising every year — and if your child is under 10, the sticker price by the time they enroll could be staggering. For co-parents, saving for college adds a layer of complexity: who opens the account, who contributes, and who controls the money? Getting ahead of these questions now means your child is better supported later, regardless of what happens between you and your co-parent.
🎓 Understanding the 529 Plan
A 529 plan is the most widely used college savings account in the United States. Contributions grow tax-free, and withdrawals are tax-free when used for qualified education expenses (tuition, room and board, books, and more). Any adult — parent, grandparent, or other family member — can open a 529 account for a child.
For co-parents, either parent can open and own a 529 account. The account owner controls investment decisions and withdrawals, but both parents (and grandparents, aunts, uncles, etc.) can contribute to it. It's also possible for each parent to open their own separate 529 account for the same child.
One Account or Two?
There's no rule requiring co-parents to share a single 529. Many families find it simpler for each parent to maintain their own account. This avoids disputes over investment choices and withdrawal decisions. The child benefits from both accounts regardless of who owns them.
However, a single account can simplify the FAFSA process. Federal financial aid calculations use the account owner's assets, so account ownership can affect aid eligibility. If one parent is likely to qualify for more need-based aid, it may be worth discussing who owns the primary account with a financial advisor.
Setting Contribution Expectations
Agree in writing on how much each parent will contribute and how often — monthly, annually, or as a lump sum. Like other shared expenses, contributions can be split equally or proportionally to income. Even small, consistent contributions make a significant difference over many years thanks to compound growth.
Also consider what happens if one parent stops contributing. The other parent should not be penalized for the shortfall. Revisit the agreement annually, or whenever there's a significant change in either parent's financial situation.
Put It in the Parenting Agreement
Some states require divorced parents to address college expenses in their parenting plan. Even if yours doesn't, adding a college savings clause creates accountability. Include the contribution amounts, the account details, and a process for resolving disputes about withdrawals.
An attorney or mediator can help draft this language clearly. It's a small investment now that prevents major conflict later — especially when your child is 17 and college decisions are suddenly very real.
Coordinating finances between two households takes organization and trust. CoParent.Help (https://www.coparent.help) helps co-parents track shared financial commitments, maintain records, and communicate clearly — so your child's future stays the priority.
Source: CoParent.Help