A prenuptial agreement costs $2,500 to $10,000 in 2026, with most couples paying $2,500–$4,000 total when each partner has their own attorney. Simple, straightforward prenups can run as little as $1,500–$2,000, while complex cases involving businesses, real estate portfolios, or significant assets can exceed $15,000.
Talking about a prenup isn’t the most romantic part of wedding planning, but it’s one of the smartest financial moves a couple can make. The cost is a fraction of what a contested divorce runs — and the process forces a conversation about money that every couple should have anyway. Here’s what drives the price and how to get it done right.
Prenup Cost Breakdown
The biggest factor is how you structure the legal work:
- One lawyer drafts, each partner reviews: $2,500–$4,000 total. Each person should have their own attorney review the agreement — this is important, because courts look more favorably on prenups where both sides had independent counsel.
- Two lawyers negotiating: $4,000–$10,000 total. When both sides have assets to protect or the terms need real negotiation, costs climb with each round of revisions.
- Complex or high-net-worth prenups: $10,000–$15,000+. Business ownership, multiple properties, inheritances, and stock compensation all add complexity and attorney hours.
Most family law attorneys charge $250 to $500 per hour, and a straightforward prenup takes 5–10 hours of legal work per side. Flat-fee prenups are common — many firms quote a fixed price upfront for simple agreements, which protects you from surprise hourly bills.
What Affects the Price
Complexity of your finances
Two renters with W-2 jobs and modest savings need a simple document. A founder with equity, a rental property owner, or someone expecting a large inheritance needs detailed provisions. Every asset class and contingency adds drafting time.
How much you negotiate
A couple who agrees on the big terms before walking into the lawyer’s office pays far less than one whose attorneys go back and forth on spousal support, property division, and debt responsibility for weeks. Do the hard conversations at the kitchen table first.
Where you live
Like everything legal, prenups cost more in New York, California, and other high-cost states. Rural and small-market attorneys often charge half the hourly rate of their big-city counterparts.
When You Actually Need a Prenup
Not everyone does, but consider one seriously if any of these apply: you own a business, you have significantly more assets or debt than your partner, you’re entering a second marriage with children, you expect a substantial inheritance, or one partner is giving up a career. These are the situations where the cost of a prenup is trivial compared to what’s at stake. Our guide on how much a lawyer costs can help you budget for the legal fees involved.
What a Prenup Can and Can’t Cover
A prenup is more flexible than most people realize. It can define how property and debts are divided, protect a business or professional practice, set terms for spousal support, and clarify what happens to inheritances and gifts. Many couples also use prenups to agree on financial responsibilities during the marriage itself — who pays what, how joint accounts work, and how major purchases get decided.
What it can’t do: decide child custody or child support (courts decide those based on the child’s best interests at the time of divorce), include anything illegal, or waive rights in ways your state doesn’t allow. A few states also won’t enforce provisions they consider “unconscionable” — wildly one-sided terms signed without real negotiation. This is another reason independent legal counsel on both sides matters so much.
Tips to Keep Costs Down
Start early — at least 2–3 months before the wedding. A prenup signed days before the ceremony can be challenged as coerced, and rushing forces lawyers to work on deadline rates. Come prepared: bring a full list of assets, debts, and income to your first meeting so your attorney isn’t billing hours to gather basics. And agree on the core terms with your partner before involving lawyers — negotiation is where fees balloon.
A prenup is just one piece of wedding financial planning. See our wedding planner cost guide for event budgeting, and how long divorce takes for context on what a prenup helps you avoid. The American Bar Association also offers free resources on finding qualified family law attorneys in your state.
FAQs
Can I write my own prenup without a lawyer?
You can use online templates, and they’ll cost $100–$500 — but they’re risky. Prenups have strict state-specific requirements around disclosure, fairness, and timing. A DIY agreement that’s thrown out in court is worth nothing. At minimum, pay for an attorney review.
Is a prenup enforceable in every state?
Generally yes, if done properly: full financial disclosure, both parties represented, no coercion, and signed well before the wedding. Most states follow the Uniform Premarital Agreement Act, though some (like California) have additional requirements.
When should we start the prenup process?
At least two to three months before the wedding. Some attorneys recommend six. The further from the wedding date, the harder it is for anyone to argue the agreement was signed under pressure.
Can a prenup be changed after marriage?
Yes — through a postnuptial agreement, which works similarly. Many couples update their prenups after major life changes like starting a business or having children.
