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Estate Planning Documents Couples Should Complete Before Kids

By Ronke Oyekunle Reviewed by Michael Cotugno, Esq.
a man sitting on a couch next to a little girl

Before or right after having a baby, couples should complete five core documents: a last will and testament that names a guardian for your children, a trust for minor children, a durable power of attorney and a healthcare proxy for each partner, and updated beneficiary designations on retirement accounts and life insurance. Add term life insurance, and you have the financial backbone that supports your child if a parent dies young. The right mix depends on your state's laws, your assets, and how you want your child's inheritance managed, which is why these documents work as a coordinated set rather than one-off forms.

Key takeaways

  • Couples with kids need five core documents: a will naming a guardian, a minor's trust, a durable power of attorney, a healthcare proxy, and updated beneficiary designations, plus term life insurance as the financial backbone.
  • A will is the only legal document that lets you name a guardian for a minor child; without one, a court decides who raises your children and state intestacy laws control your assets.
  • Roughly 60% of American adults have no will or estate planning documents, and the share is even higher among younger adults, the group most likely to have young children.
  • A minor can't legally receive a large inheritance outright (often until 18), so a children's trust lets you name a trustee and delay full distribution to 25, 30, or in stages.
  • Beneficiary designations override your will, so retirement accounts and life insurance pass to whoever is named on the form regardless of what your will says.
  • Neptune manages the full process with experienced attorneys and CFPs so couples complete every document correctly together and keep it valid under their state's law.

Why Estate Planning Becomes Urgent When You Start a Family

Before a baby, dying without a will feels abstract. After a baby, it becomes immediate. The question stops being "what happens to my stuff" and turns into "who raises my child, and where does the money come from to support them."

Those are the two central questions every couple has to answer together. The first is about people: who steps in to parent your child if neither of you can. The second is about resources: which accounts, policies, and assets fund that child's life, and who controls them until your child is old enough to manage money on their own. Answering both takes real conversation, and those conversations tend to surface how each of you thinks about money, risk, and the future.

That's where financial intimacy comes in. As Michael C. Cotugno, Esq., Managing Partner at Neptune Legal, puts it: "Understanding a partner's relationship with money, their historical experiences of abundance or scarcity, their anxieties tied to financial stability, or their personal definitions of success, allows for a deeper, more empathetic understanding of them as a whole individual." Building an estate plan together gives you a reason to have those conversations on purpose, with structure, instead of avoiding them.

This isn't a defensive exercise. It's one of the most concrete acts of care you can take as partners planning for a growing family. You're creating clarity so that if the worst happens, the people you love aren't left guessing.

The Core Estate Planning Documents Couples Need Before Having Children

A complete estate plan isn't one document. It's a connected set that works together, and each piece covers a gap the others can't.

For couples starting a family, the core group includes a last will and testament, a trust for minor children, a durable power of attorney (for finances), a healthcare proxy (also called a medical power of attorney), and updated beneficiary designations on retirement accounts and life insurance. Add term life insurance, and you have the financial backbone that supports your child if a parent dies young.

The will is the anchor. According to the estate planning guidance published by Trust & Will Guide, a will is the only legal document that lets you name a guardian for your minor child. Without one, state intestacy laws (the default rules that apply when someone dies without a valid will) decide how your assets are distributed, and a court decides who raises your children. That decision may not reflect what you would have chosen.

Here's the part people miss: no single document is enough. A will names a guardian but doesn't replace your income. Life insurance replaces income but doesn't name a guardian or control how a minor receives the money. A trust manages assets but only works if it's actually funded and coordinated with your beneficiary designations. They function as a system.

Naming a Guardian for Your Children

Choosing a guardian is the single most important decision new parents make in an estate plan, and it only becomes legally binding when you name that person in a valid will.

According to guidance from the elder law group at Mandelbaum Barrett PC, published on JD Supra, naming a guardian in your will ensures your child is cared for by someone you trust. Without a designated guardian, a court may appoint someone who doesn't share your values, parenting style, or long-term vision for your child's upbringing. Worse, family members may disagree over custody, which can lead to legal battles that are stressful and expensive at exactly the moment your child needs stability.

Name two people, not one. A primary guardian is your first choice. A contingent guardian is your backup, in case your first choice can't serve when the time comes (they've moved, their health has changed, or their own circumstances have shifted). Think about who provides emotional support and day-to-day stability, not just who's financially comfortable, since the money side can be handled separately through a trust and life insurance.

This is a decision couples make together. You may not agree at first, and that's normal. Talking it through with a qualified estate planning attorney helps you weigh factors you haven't considered and get the language right so the nomination actually holds up under your state's law.

Trusts, Life Insurance, and Beneficiary Designations

A minor legally can't receive a large inheritance outright. That's the practical reason a trust matters.

According to the Mandelbaum Barrett PC guidance on JD Supra, a will can establish a minor's trust that lets you specify how your child's inheritance should be used, names a trustee to manage the assets on the child's behalf, and sets when the funds are fully distributed to your child. Without a trust, a child's inheritance may be distributed before they're mature enough to manage it responsibly, often at 18 in many states. A trust lets you push full access to 25, 30, or in staggered amounts, and gives a trustee you choose the authority to release money for education, health, and support in the meantime.

Term life insurance is the financial backbone of new-parent planning. It replaces income to support your child through adulthood if a parent dies young. According to Trust & Will Guide, a common and costly mistake is having a will but no life insurance, or life insurance but no will. Both documents work together, and neither is sufficient on its own. A frequently cited rule of thumb is coverage of roughly 10 to 12 times your annual income, though the right number depends on your debts, your childcare costs, and how many years of support you want to fund.

Beneficiary designations override your will. Your retirement accounts (401(k), IRA) and life insurance policies pass to whoever is named on the beneficiary form, regardless of what your will says. If your form still lists a parent or an ex from before you married, that's where the money goes. Updating these designations, and often routing them through your children's trust rather than directly to a minor, keeps everything aligned.

Document What it does What happens without it
Last will and testamentNames a guardian for minor children and directs how assets are distributedA court decides guardianship; state intestacy laws control asset distribution
Minor's / children's trustManages a child's inheritance, names a trustee, sets when funds distributeA minor may receive assets outright as early as 18, before they're ready
Term life insuranceReplaces income to support your child if a parent dies youngYour family may lack the funds to maintain their standard of living
Healthcare proxy (medical POA)Names who makes medical decisions if you're incapacitatedEven a spouse may face legal barriers making decisions in an emergency
Durable power of attorney (finances)Names who handles financial matters if you can'tLoved ones may need a court-appointed conservatorship to access accounts

Powers of Attorney and Healthcare Directives

Estate planning isn't only about what happens if you die. It's also about what happens if you're alive but can't make decisions.

A healthcare proxy (also called a medical power of attorney) names the person who makes medical decisions for you if you're incapacitated. A durable power of attorney names who handles your financial matters, paying bills, managing accounts, and dealing with the day-to-day if you can't. According to Trust & Will Guide, without these documents even a spouse may face legal barriers to acting on your behalf in a medical emergency. Marriage doesn't automatically grant full authority over every account or every medical choice.

An advance healthcare directive (sometimes called a living will) goes a step further and spells out your preferences for end-of-life care, so the person you've named isn't forced to guess about treatments you would or wouldn't want. The National Institute on Aging notes that common documents to get in order include a will, a durable power of attorney for finances, and a living trust, and that a will can also address care for children.

For a new parent, these documents matter as much as the will. A medical crisis that leaves you incapacitated, without full recovery, is statistically more likely during your working years than sudden death. Naming decision-makers in advance keeps your family out of court during a moment that's already hard enough.

How Couples Can Build and Maintain a Complete Plan Together

Start with the conversations, then build the documents. The topics worth agreeing on before you draft anything: who your guardian and backup guardian will be, who serves as executor of your will, who serves as trustee for your children's trust, and how much financial support you want to fund. According to LawDepot's guidance on estate planning for married couples, transparency between spouses on these decisions is what makes the plan actually reflect both partners' wishes.

Sequence it so nothing sits half-finished. Draft and sign your wills, establish the children's trust, put term life insurance in place, then update every beneficiary designation to match. A plan with a great trust and outdated beneficiary forms doesn't do what you think it does.

Then keep it current. Update your documents after every major life event: a marriage, a new child, a move to a new state (estate laws are state-specific, so a will valid in one state may need review in another), a significant change in assets, or a change in the people you've named. As Michael C. Cotugno, Esq., Managing Partner at Neptune Legal, puts it: "The real work, the true magic, lies in the ongoing practice of conscious partnership each and every day." Maintaining a plan is part of that ongoing practice, not a one-time chore.

This is where the difference between a template and a managed process shows up. DIY tools can produce a document, but they can't tell you whether your guardian nomination holds up in your state, whether your trust is funded correctly, or whether your beneficiary designations conflict with your will. Neptune manages the full end-to-end process, pairing you and your partner with experienced estate planning attorneys and CFPs (Certified Financial Planners) who shepherd every document from first conversation to signed, coordinated plan. You complete everything together, correctly, without becoming legal experts yourselves. Independent counsel for each partner is highly recommended for an enforceable prenup, and the same principle of qualified, personalized guidance applies to building an estate plan that will actually work when your family needs it.

Frequently asked questions

What estate planning documents should we complete before our baby is born?

Complete a last will and testament that names a guardian for your child, a trust for minor children, a durable power of attorney and a healthcare proxy for each partner, and put term life insurance in place. Then update the beneficiary designations on your retirement accounts and insurance so everything is coordinated. Many couples finish these documents in the months before the due date so nothing is left unresolved when the baby arrives.

Do both spouses need separate wills, or can we share one?

Each spouse needs their own separate will. A will speaks for one person's wishes and estate, so joint wills are generally discouraged because they're hard to change and can create problems when circumstances shift. Couples usually create mirror wills, two separate but coordinated documents that name the same guardian, the same trustee, and consistent distribution plans.

How do we choose a guardian for our children?

Name a primary guardian and a contingent (backup) guardian in your will. Focus on who provides emotional support, stability, and a parenting approach that matches your values, since the financial side can be handled separately through a trust and life insurance. Talk through the choice together and confirm the person is willing to serve. An estate planning attorney can make sure the nomination is worded to hold up under your state's law.

What is a minor's trust and why do we need one?

A minor's trust is a legal arrangement that holds a child's inheritance, names a trustee to manage it, and specifies when the funds are fully distributed. A minor legally can't receive a large inheritance outright, often until age 18 in many states, which is usually too young to manage significant money. A trust lets you delay full access to 25, 30, or release funds in stages while a trustee you chose pays for education, health, and support in the meantime.

How much term life insurance should new parents have?

A common rule of thumb is coverage of roughly 10 to 12 times your annual income, though the right number depends on your debts, childcare and education costs, and how many years of support you want to fund. Term life insurance replaces income to support your child through adulthood if a parent dies young. It works alongside your will, and having one without the other is a common and costly gap.

What happens to our children if we die without a will?

Without a will, a court decides who raises your children, and that decision may not reflect your wishes. Family members may disagree over custody, which can lead to stressful and expensive legal battles. Your assets are distributed according to state intestacy laws rather than your instructions, and any inheritance may pass to your child outright once they turn 18 instead of being managed through a trust.

Do we need a trust if we already have a will?

Often, yes. A will names a guardian and directs where assets go, but it can't control how a minor receives or manages money over time. A children's trust holds and manages the inheritance, names a trustee, and sets when funds distribute. Without a trust, a minor may receive assets outright as early as 18. The two documents cover different gaps and work best together.

How often should we update our estate plan after having kids?

Review your plan after every major life event: a new child, a move to a different state, a significant change in assets, a divorce or remarriage, or a change in the people you've named as guardian, executor, or trustee. Estate laws are state-specific, so a will valid in one state may need review after a move. Even without a major event, a review every three to five years keeps everything current.

Can a spouse make medical and financial decisions without a power of attorney?

Not automatically in every situation. Without a healthcare proxy and a durable power of attorney, even a spouse may face legal barriers to acting on your behalf in a medical emergency or managing certain accounts. In some cases loved ones would need a court-appointed guardianship or conservatorship to gain that authority. Naming decision-makers in advance keeps your family out of court during a crisis.

Should we work with an attorney or use an online estate planning tool?

Online tools can generate a document, but they can't confirm your guardian nomination holds up in your state, verify that your trust is funded correctly, or catch conflicts between your will and your beneficiary designations. Working with a qualified estate planning attorney (and a financial planner for the insurance and asset side) makes sure the documents work as a coordinated set. Neptune manages the full process end to end, pairing couples with experienced attorneys and CFPs.

Ronke Oyekunle

Written by

Ronke Oyekunle

Co-Founder & COO, Neptune

Michael Cotugno

Reviewed by

Michael Cotugno, Esq.

Managing Partner, Neptune Legal · 30+ years practicing family law

Michael has been practicing family law for more than 30 years and as Managing Partner of Neptune Legal, he is widely recognized for his expertise in premarital agreements and estate plans. After spending the first two decades of his career handling family law litigation, he saw firsthand the emotional and financial costs couples often face when issues are not clearly addressed early on. This experience led him to focus his practice on helping clients proactively create thoughtful, well-structured agreements.