TL;DR: A prenup must be signed before the wedding, but how far in advance matters. Most states don't set a specific deadline; instead, courts look at whether both parties had enough time to review the agreement voluntarily. California, for example, requires at least seven days between receiving the final draft and signing. In New Hampshire, courts have recommended signing at least 30 days before the ceremony to avoid challenges based on duress. With First's Lawyer Review plan, couples skip the days normally lost to attorney shopping and can connect with a licensed family law attorney right away.
It's late. The save-the-dates went out months ago, the venue is paid for, and somewhere between the seating chart and the rehearsal dinner, one of you said the word "prenup" out loud. Now you're searching from your phone, wondering if it's already too late.
Take a breath. In most cases, it isn't.
A prenup is still on the table for couples whose weddings are weeks, and sometimes days, away. What matters is understanding what your specific window allows, and starting the process now instead of tomorrow. If you and your partner haven't fully had the conversation yet, here's how to talk about a prenup without it derailing your wedding planning. If you want a refresher on what a prenup actually covers before you read further, start here .
Wait, can you still get a prenup before the wedding? Yes. As long as the wedding hasn't happened, a prenuptial agreement is still possible in nearly every state. The legal definition of a prenup is simply an agreement signed before marriage, so the door stays open right up until the moment you say "I do."
What changes as the wedding approaches is how much margin you have for the process to go well. The earlier you start, the more time both partners have to review, ask questions, and (where required) get independent legal review. The closer to the wedding, the more important it becomes to follow a structured process that protects the agreement from later challenge.
The good news: most of the delay in a traditional prenup comes from finding lawyers, not from drafting. Cut that step out, and the timeline compresses dramatically.
The realistic prenup clock: what each window actually allows Different time windows allow for different paths. Here's what's possible at each stage.
At 90 days or more , you have the full range of options open. The traditional process works, and so does First's Lawyer Review ($3,500) or Self-Serve ($649). There's no specific risk to manage at this point. The only advice is to start now.
At 30 to 89 days , an expedited prenup process is feasible. Lawyer Review with immediate attorney access is the recommended path. The main risk is avoiding unnecessary delays during draft review.
At 14 to 29 days , the timeline is achievable with focused effort and aligned finances. Lawyer Review with priority access is the right path. Both partners need real review time, and you should check your state's waiting period requirements.
At 8 to 13 days , a prenup is still possible in most states, including California provided the seven-day review period is satisfied, though there's higher risk in New Hampshire given the 30-day judicial recommendation. Lawyer Review is the fastest path. Confirm your state's timing rules carefully; in California, ensure the final draft was delivered at least seven days before signing, and document the review timeline.
At 7 days or fewer in California , a prenup is not possible because the seven-day floor cannot be waived. The realistic option is a postnup after the wedding. California's mandatory 7-day rule is a hard stop.
If the wedding has already passed , a prenup is no longer available. The path forward is to consult with independent legal counsel about a postnuptial agreement. Courts may scrutinize postnups more closely than prenups.
Two state-specific items deserve their own line. California Family Code §1615(c)(2)(B) requires a mandatory seven full calendar days between the moment a party receives the final draft and the moment both parties sign. That waiting period cannot be waived, even by mutual agreement. New Hampshire practice standards push that floor to 30 days. In most other states, the law doesn't impose a hard cutoff, but family law attorneys generally recommend finalizing at least 30 days out to keep the agreement on solid ground.
Why rushing a prenup creates legal risk (and how to avoid it) The reason a last-minute prenup gets extra attention from a court isn't paperwork. It's a doctrine called duress.
Duress is a legal challenge claiming one partner was pressured into signing without enough time or freedom to refuse. If a judge later finds that a partner had no realistic chance to read, understand, or push back on the document, the agreement can be invalidated. Coercion claims are among the most common grounds for throwing out an otherwise valid prenup.
The fix isn't more weeks on the calendar by itself. It's having a solid process. Full financial disclosure from both partners, a draft that each person has time to read, independent legal review, and a clear paper trail showing the timeline. Done that way, a prenup signed two weeks before the wedding can be just as enforceable as one signed two months out. Done sloppily, even a prenup signed six months in advance can be challenged.
State-by-state variation matters here too. Most states have adopted some version of the Uniform Premarital Agreement Act , which sets the baseline for enforceability, but each state layers on its own rules. The American Bar Association's family law resources are a useful starting point if you want to understand the general framework before talking to an attorney.
How First's Lawyer Review cuts days off the clock The single biggest time-sink in a traditional prenup isn't drafting. It's finding two attorneys (one for each partner), waiting for intake calls, comparing retainers, and coordinating schedules. That alone can eat three or four weeks before a single word gets written.
First's Lawyer Review plan removes that step. When you start, you can connect with an attorney immediately. Drafting, review, and negotiation happen on a compressed timeline through the platform. Notarization is handled online and is included. Without First, the traditional prenup process can take three to six months. With First, the recommended window is three to six weeks, and the entire process happens online.
Lawyer Review is $3,500. For couples whose wedding is within 30 days, it's the path that makes the math work, because every day saved on attorney shopping is a day added to the review window that protects the agreement.
The Self-Serve path: is a focused weekend enough? Lawyer Review isn't the only option. For couples with simpler finances and aligned goals, First's Self-Serve plan ($649) lets you build a complete prenup on your own timeline. A focused weekend is enough for many couples: Saturday morning to talk through priorities, Saturday afternoon and Sunday to work through the platform, Monday for review.
Self-Serve makes sense when both partners are on the same page about the major terms (assets and debts treatment, what stays separate), neither side has complex holdings like a closely held business or significant pre-marital real estate, and you both want to move quickly without the attorney-coordination overhead.
Our prenup checklist walks through what to gather before you sit down. If, partway through, you realize the situation is more complex than you thought, you can step up to Lawyer Review without starting over. No PDFs, no hourly rates, no lawyering up.
Frequently Asked Questions Can you get a prenup after you're already married? No. A prenuptial agreement must be signed before the wedding takes place. Once you're legally married, the equivalent document is called a postnuptial agreement. A postnup can cover many of the same protections, but courts tend to scrutinize it more closely than a prenup, which makes a pre-wedding agreement the stronger choice when time still allows.
How many days before the wedding do you need to sign a prenup? It depends on your state. California requires at least seven full calendar days between receiving the final draft and signing. New Hampshire courts have strongly recommended signing at least 30 days before the wedding to avoid challenges based on duress, though this is judicial guidance rather than a statutory mandate. Most family law attorneys recommend finalizing at least 30 days out in any state to minimize duress concerns, though most states have no fixed cutoff.
How long does it actually take to get a prenup done? The traditional process, including finding lawyers, drafting, negotiating, and reviewing, typically takes three to six months. With First, the timeline compresses significantly. First recommends leaving three to six weeks, and the Lawyer Review plan eliminates attorney-shopping time with an immediate attorney connection. Self-Serve couples who are financially aligned can move through the platform over a focused weekend.
Is a last-minute prenup legally valid? A prenup signed close to the wedding isn't automatically invalid, but it faces higher scrutiny. Courts look for signs of duress, including pressure, inadequate review time, or one partner feeling they had no choice. Following a structured process with proper financial disclosure and independent review time is what protects the agreement, regardless of how close the wedding is.
Can I get a prenup if my wedding is in California and it's less than 7 days away? No. California Family Code §1615(c)(2)(B) requires a mandatory, non-waivable seven-day waiting period between the final draft and signing. If your California wedding is fewer than eight days out, you can't complete a valid prenup in time. Your options are to postpone signing the marriage license until the prenup is complete, or to sign a postnuptial agreement after the wedding.
If the wedding has already happened: postnuptial agreements in one paragraph If the wedding is behind you, the prenup ship has sailed, and the document you want is a postnuptial agreement: a written financial contract signed by two people who are already legally married, covering the same territory as a prenup (asset division, debt allocation, spousal support). Postnups are valid and useful, but courts examine them more closely than prenups because spouses already owe each other fiduciary duties under marriage, which raises the bar on fairness and voluntary consent. If you're considering a postnup, work with independent legal counsel from the start, and read what to do when things change after a prenup for context on how marital agreements adapt over time. AARP's postnuptial agreement explainer is a useful third-party reference.
Start now, not Monday If your wedding is still ahead of you, this is the moment. Not Monday, not after the honeymoon venue is booked. First's Lawyer Review allows you to connect with an attorney immediately, cutting out the search time that most last-minute couples lose. If your situation is simpler and you're both aligned on terms, Self-Serve lets you move through the process on your own timeline, often in a single focused weekend. Either way, the door is still open. Future you will thank the present you for walking through it.
First is not a law firm. The information and tools provided by First on this site are not legal advice and not a substitute for the advice of an attorney.
Prenup requirements, including mandatory waiting periods, notarization rules, and independent counsel requirements, vary significantly by state. Confirm your state's specific rules before signing any agreement. Postnuptial agreements are subject to heightened legal scrutiny in many jurisdictions; couples pursuing a postnup should work with independent legal counsel to maximize enforceability.
