Prenups and Postnups, What They Cover and How They Fit a Plan

Nobody plans a wedding while thinking about a divorce, which is exactly why prenups have a reputation problem. In practice, the couples who sign them are often the ones who have talked most openly about money. A prenup forces two people to disclose everything they own and owe, decide how they want to handle it, and write it down while they still like each other. That is a financial planning exercise as much as a legal one.

For high earners in metro Atlanta, the stakes are specific. A physician marrying with $300,000 in student loans, an entrepreneur whose company may be worth eight figures in a decade, a partner expecting a family inheritance, or a second marriage with children from the first all face default rules under Georgia law that may not match what they would choose. A prenup, or a postnup for couples already married, replaces those defaults with terms both people agreed to.

This guide explains what these agreements cover, what they cannot do, what makes them enforceable in Georgia, and how they should connect to your broader financial plan. Attend does not draft prenups or any legal documents. We work alongside family law attorneys and help clients prepare the financial side.

What a Prenup Actually Covers

A prenuptial agreement is a contract signed before marriage that governs financial matters during the marriage and at its end. Most agreements address a common set of issues.

• Separate vs marital property. Which assets each person brings into the marriage remain theirs, and whether growth on those assets during the marriage stays separate or becomes marital.
• Income and earnings. Whether income earned during the marriage is shared or kept separate, and how joint accounts are treated.
• A business or professional practice. Whether the business remains the owner's separate property, how its appreciation is treated, and whether the other spouse has any claim on its value or income.
• Inheritances and gifts. Confirmation that inherited assets remain separate even if used for family purposes, or a defined method for tracing them.
• Debt. Who is responsible for premarital debt such as student loans, and how debt incurred during the marriage is allocated.
• Alimony. Whether spousal support will be paid, in what amount, for how long, or whether it is waived entirely. Georgia allows alimony waivers in prenups, subject to the court's review for fairness.
• Death. What each spouse receives if the other dies, which can expand or limit the rights a surviving spouse would otherwise have under Georgia law, and which must be coordinated with wills, trusts, and beneficiary designations.

What a prenup cannot do

A prenup cannot decide child custody or child support. Those are determined by the court based on the child's best interests at the time, and any clause that tries to fix them in advance is unenforceable. It cannot require or penalize personal behavior in ways a court would treat as against public policy. It cannot waive a spouse's rights under federal law to a workplace retirement plan, a point covered below. And it cannot be so one-sided that a court finds it unconscionable.

Georgia's Default Rules and Why They Matter

Without an agreement, Georgia's equitable distribution rules apply. Marital property, which is broadly everything acquired during the marriage by either spouse, is divided equitably, meaning fairly in the court's judgment rather than automatically equally. Separate property, including premarital assets, gifts, and inheritances, is generally not divided, but it can lose its separate character if it is mixed with marital funds or retitled jointly. Appreciation of separate property during the marriage can be treated as marital if it resulted from the efforts of either spouse.

That last point is where business owners and professionals get surprised. A practice worth $500,000 at the wedding and $3 million at the divorce may have $2.5 million of marital appreciation on the table, along with years of litigation over valuation. A prenup can settle that question in a paragraph. Our guides for business owners on keeping personal and business finances separate and on estate planning for blended families cover adjacent issues.

At death, a surviving spouse in Georgia has rights that a will cannot fully eliminate, including a claim for year's support from the estate. A prenup can waive or define those rights, which is why estate attorneys often recommend one in second marriages.

Who Should Consider a Prenup

Not every couple needs one. Two people in their late 20s with similar incomes, modest savings, and no business interests often get little from a prenup beyond the disclosure conversation, which they can have on their own. The agreement earns its cost when at least one of the following is true.

• One partner owns a business, a professional practice, or equity in a startup, or expects to.
• One partner expects a significant inheritance or is a beneficiary of family trusts.
• There is a large gap in income, assets, or debt, such as a physician with heavy student loans marrying someone with none, or the reverse.
• Either partner has children from a prior relationship whose inheritance should be protected.
• One partner plans to step out of the workforce to raise children and wants defined support if the marriage ends.
• Either partner has been through a difficult divorce and wants certainty about the process.

What Makes a Prenup Enforceable in Georgia

Georgia courts have enforced prenuptial agreements since a 1982 Georgia Supreme Court decision established a three-part test that still governs. A court will uphold the agreement unless it was obtained through fraud, duress, mistake, or nondisclosure of material facts; unless it is unconscionable; or unless the facts and circumstances have changed so much since signing that enforcement would be unfair. Each element points to a practical rule.

Full financial disclosure

Each person must disclose their assets, debts, and income in enough detail that the other knows what they are agreeing to. Attach the disclosure schedules to the agreement. This is where an adviser adds value: preparing an accurate net worth statement, documenting business valuations and equity compensation, and listing retirement accounts and debts. Our net worth calculator is a reasonable starting point, but the disclosure should be thorough.

Independent counsel and time

Each party should have their own attorney, and the agreement should be signed well before the wedding. An agreement presented a week before the ceremony, or signed without counsel by the less sophisticated partner, is the kind that gets challenged on duress grounds. Georgia also has formal execution requirements for these agreements, which is one more reason to use an experienced family law attorney rather than a template. Nolo's overview of prenuptial agreements is a reasonable primer.

Reasonable terms

An agreement that leaves one spouse with nothing after a long marriage invites a court to find it unconscionable or to apply the changed-circumstances exception. Many well-drafted agreements include escalators, such as a lump sum or property share that grows with the length of the marriage, or sunset clauses that phase out certain provisions after a set number of years.

Prenups and Retirement Accounts

This is the most misunderstood area. Workplace retirement plans governed by federal law, including 401(k)s and pensions, give a spouse rights to survivor benefits and, in some plans, consent rights over distributions and beneficiary changes. Federal rules require a spousal waiver to be signed by a spouse, and a fiancé is not yet a spouse. A prenup alone therefore does not waive those rights. The standard solution is to include in the prenup a promise that each spouse will sign the plan's waiver form after the wedding, and then to actually do it. The Department of Labor's guidance on retirement plan spousal rights explains the framework.

IRAs are different. They are not governed by the same federal spousal rules, so a prenup can address them directly, and the account owner controls the beneficiary designation. Either way, the beneficiary forms must be updated after the wedding to match the agreement. A beneficiary designations audit is the follow-through step most couples forget.

Postnups: The Same Tool After the Wedding

A postnuptial agreement is signed by spouses who are already married. Georgia enforces postnups under similar standards, and courts look even more closely at fairness and disclosure because the parties already owe each other fiduciary-like duties. Common reasons for a postnup include a business that grew far beyond expectations, an inheritance received during the marriage, one spouse leaving a career to raise children, a reconciliation after a rough patch, or a prenup the couple never got around to signing.

Postnups also appear in estate planning for couples in second marriages who want to confirm what each spouse's children will inherit. The agreement and the estate documents must be drafted together, ideally by attorneys who are talking to each other.

How a Prenup Fits Into the Financial Plan

The agreement is a set of rules. The financial plan is what happens under those rules. If the prenup says a business stays separate, then the couple's plan needs a household income structure that does not quietly convert business earnings into marital assets, and a clear method for tracing separate funds. If the prenup provides a defined settlement for a spouse who leaves the workforce, the plan needs life and disability insurance sized to fund it. If the prenup waives survivor rights, the estate plan must replace them with something the surviving spouse can live on.

In practice, we help clients in three ways. Before signing, we prepare the disclosure and model what each partner would receive under the proposed terms in several scenarios, including a short marriage, a long one, a business exit, and a death. After signing, we structure the accounts so that separate and marital property stay distinguishable, following the approach in our guide to joint vs separate accounts for couples. And over time, we flag when a change in circumstances, such as a large equity event or a decision to have children, means the agreement should be reviewed with counsel.

A prenup or postnup is not a bet against the marriage. It is a decision to set the financial terms while both people are calm, informed, and fair-minded, rather than leaving them to a courtroom under the worst circumstances. For couples with a business, an inheritance, a large income gap, or children from a previous relationship, it is often the most protective document in the plan. Attend does not draft these agreements, but we help you prepare for them and build a plan that honors what they say. If that would be useful, our estate and legacy planning work is the place to start.

Tony Colunga · Founder, Attend Wealth

Tony leads Attend Wealth, a fee-based wealth management firm in Atlanta serving professionals, families, physicians, and business owners. Advisory services are held to a fiduciary standard. More about Attend