How Do You Get a Prenuptial Agreement Step by Step in 2026?

What Are the Steps to Get a Prenup?

Getting a prenup follows six sequenced steps that typically span 60 to 120 days from first conversation to signed document. Starting early is the single biggest factor in avoiding enforceability disputes down the road.

Keep in mind that state rules vary. What's valid in Texas may need adjustments for New York. This guide covers the general U.S. process and is not legal advice. A qualified family law attorney in your state can walk you through jurisdiction-specific requirements.

Step 1: Decide If You Need a Prenup and Start the Conversation

Most couples who benefit from a prenup share at least one of these circumstances: real estate ownership, more than $50,000 in assets, business interests, retirement benefits exceeding one year's worth, stock options or profit-sharing, plans for one partner to pursue an advanced degree while the other works, or estate beneficiaries outside the marriage (FindLaw).

Run through this quick self-check:

• Do you own real estate or have significant equity in property?
• Do you have combined or individual assets above $50,000?
• Do you earn more than $100,000 a year?
• Do you own any part of a business?
• Do you have more than a year's worth of retirement benefits?
• Does part of your estate name heirs or beneficiaries other than your partner?
• Will one of you attend graduate school while the other works?

If you answered yes to even one question, a prenup is worth exploring. And the earlier you start the conversation, the better. Bring it up well before you're deep into venue deposits and vendor contracts so there's enough runway for the full process.

As Michael C. Cotugno, Esq., Managing Partner, Neptune Legal, puts it: "The initial outreach for a premarital agreement is an invitation, not a demand."

The goal is an open conversation about shared financial expectations, not a negotiation under pressure.

Step 2: Hire Independent Attorneys for Each Partner

Each partner should retain their own family law attorney. Joint representation by one attorney is among the most common reasons courts later set prenups aside (PrenupByState). Independent counsel means each attorney advocates solely for their own client and reviews the document for enforceability under your state's law.

What your attorney does:

• Explains how your state's property rules (community property in 9 states, equitable distribution in 41 states plus D.C.) would apply without a prenup
• Drafts or reviews clauses to make sure terms are clear and enforceable
• Identifies provisions that could trigger a later challenge
• Walks you through the legal effect of every term before you sign

Neptune offers a lawyer-led online prenup where each partner selects and works with their own independent attorney when both partners use Neptune-network lawyers. Each client chooses their attorney; Neptune does not make the selection, provide a referral, or guarantee enforceability.

Some states allow a written waiver of independent counsel under specific statutory conditions. California, for example, permits a waiver but adds a mandatory 7-day waiting period under Family Code §1615 (LegalClarity). Even where waivers are allowed, consulting an attorney before deciding to waive is strongly recommended.

Step 3: Complete Full Financial Disclosure

Both partners must exchange sworn, itemized disclosure of every asset, debt, and income source. Inadequate disclosure is the single most common reason courts strike down prenups (PrenupByState).

This isn't a casual conversation over coffee. Each partner's attorney typically facilitates the exchange, and the disclosure should include:

• Recent bank and savings account statements
• Retirement account balances (401(k), IRA, pension)
• Investment and brokerage account statements
• Real estate records, appraisals, and mortgage balances
• Business ownership documentation and, where applicable, a professional valuation
• Tax returns from the past two to three years
• Credit card balances, student loans, auto loans, and any other debts
• Stock options, profit-sharing, or deferred compensation details

The consequence of hiding assets is severe. If your partner later discovers a $500,000 account you never disclosed, a court can void the entire agreement (ClearLegalTips). Full transparency now is what gives the agreement its durability later.

Step 4: Negotiate What the Prenup Will and Won't Cover

Attorneys negotiate clauses covering property division, spousal support, business interests, debt allocation, inheritance, and dispute resolution. Each attorney's job is to make sure the final terms are fair enough and clear enough to hold up if challenged later.

What a prenup can typically address:

• Division of separate vs. marital property
• Spousal support (alimony): a fixed amount, a formula tied to marriage length or income, an escalation clause, or a waiver where permitted
• Business interests and how growth in value during the marriage is treated
• Debt responsibility for premarital and marital debts
• Inheritance and estate planning coordination
• Life insurance beneficiary designations

What a prenup cannot address:

• Child support. Support belongs to the child, not the parents. No court will enforce a prenup that limits or waives it (LegalClarity).
• Child custody. Judges decide custody based on the child's best interests at the time of separation, not an agreement signed years earlier.
• Lifestyle and behavior clauses. Provisions penalizing infidelity, setting weight requirements, or regulating personal conduct are generally unenforceable, especially in no-fault divorce states.
• Unconscionable terms. Any provision so one-sided it "shocks the conscience" will be struck by a court.
• Anything illegal. Terms that violate state or federal law are void on their face.

The negotiation is measured against your state's default property rules. In the 9 community property states, anything earned or acquired during the marriage is generally split roughly 50/50. In the 41 equitable distribution states plus D.C., a judge divides marital property based on what seems fair given income, marriage length, and household contributions (LegalClarity). Your prenup can override those defaults, which is exactly why the terms need to be negotiated carefully with independent counsel on each side.

Step 5: Sign With Enough Time Before the Wedding

Most guidance recommends signing at least 30 to 60 days before the wedding. Signing the day before the ceremony is the textbook duress fact pattern (PrenupByState).

Execution mechanics:

• The agreement must be in writing. An oral prenup is never enforceable.
• Both partners sign the document.
• Notarization is required in most states.
• Some states require witnesses. Ohio, for example, requires two witnesses alongside notarization (MarriageScience).

Check your state's specific execution rules before the signing appointment. Your attorney can confirm exactly what's needed.

How Much Does a Prenup Cost?

Costs vary widely depending on the route you choose, the complexity of your finances, and your state. For most couples, total attorney fees run $1,500 to $7,500, with complex estates reaching $10,000 to $20,000 or more (PrenupByState).

Figures are market averages drawn from multiple sources and vary by state, attorney, and complexity.

If either partner owns a business, a professional valuation may be necessary. Business valuations typically cost between $1,500 and $30,000 depending on the complexity of the business (LegalClarity). This is a separate cost on top of attorney fees.

Neptune's pricing is dynamic and not quoted in this guide. Check Neptune directly for current product pricing rather than relying on the market figures above.

Final Checklist Before You Sign

Before ink hits paper, run through this list:

• [ ] Each partner has their own independent family law attorney licensed in your state
• [ ] Full financial disclosure has been exchanged, with itemized schedules of assets, debts, and income
• [ ] Both attorneys have reviewed every provision and explained the legal effect to their respective client
• [ ] The signing date is set at least 30 days before the wedding (ideally 60+)
• [ ] You've confirmed your state's notarization and witness requirements
• [ ] Neither partner feels rushed or pressured; both have had adequate time to review and negotiate
• [ ] The agreement is in writing and will be signed by both parties

A qualified family law attorney licensed in your state should review the final document before signing. Even if you used an online service for drafting, independent attorney review adds a layer of confidence that the agreement meets your jurisdiction's enforceability standards.

A premarital agreement is a tool for financial clarity between partners. When you work through these steps together, openly and with enough time, you're building alignment on one of the most practical aspects of your shared life.