A prenuptial agreement drafted by two separate attorneys in a major city can cost anywhere from $2,500 to $10,000 or more, sometimes significantly more when one or both partners have complex finances. That range surprises most people who assumed a prenup was a simple document. It also leads many couples to either skip the prenup entirely or look for cheaper alternatives. The good news is that the $2,500 to $10,000 range is not the only option. The cost depends heavily on how the prenup is done, how complicated the finances are, and where you live.
What drives the cost of a traditional attorney-drafted prenup
When both partners hire separate attorneys to negotiate and draft a prenup, the cost adds up on both sides. The drafting attorney charges for the initial consultation, the drafting itself, revisions, and correspondence with the other side's attorney. The reviewing attorney charges for their own consultation, review, any revisions they request, and finalizing. In cities with high attorney billing rates, New York, San Francisco, Los Angeles, Chicago, the hourly rates for family law attorneys commonly run $350 to $600 per hour or more. A prenup that requires several rounds of negotiation between attorneys can accumulate 10 to 20 hours of combined billing without anyone trying to run up the clock.
Complexity is the main cost driver. A straightforward prenup between two people with simple finances, say, one partner owns a condo and the other has student loans, might be drafted efficiently and come in at the lower end of the range. A prenup involving one partner who owns a business, has equity in a startup, holds investment accounts in multiple states, and stands to inherit from a family trust is a different document entirely. Each category of asset requires careful drafting to define how it will be treated, and business interests in particular often require a valuation component and provisions addressing how the business's growth during the marriage will be characterized.
Geography also affects cost directly. The same prenup that costs $4,000 in Austin might cost $8,000 in Manhattan, not because the document is more sophisticated but because billing rates in the market are higher. Rural and smaller-market attorneys generally charge less than urban attorneys in major legal markets, though the trade-off may be less specialized experience with prenuptial agreements specifically.
The platform-based alternative: collaborative prenups at lower cost
Online prenup platforms have changed the cost calculus meaningfully for couples with straightforward finances who want a solid, enforceable agreement without the full attorney fee structure. These platforms guide both partners through the same set of questions together, generate a document that reflects their decisions, and then either connect them with attorneys for review or include review as part of the service.
HelloPrenup is one of the leading platforms in this space, designed specifically for couples who want to approach the prenup process collaboratively rather than through adversarial attorney negotiations. Both partners work through the platform together, seeing each other's answers in real time, which tends to surface disagreements early when they are easier to resolve. The resulting document is then attorney-reviewed before finalization. The cost is a fraction of the traditional dual-attorney approach, making a professionally drafted prenup accessible for couples who would otherwise skip it due to cost.
Platform-based prenups work best when the finances are relatively uncomplicated: separate property that each partner wants to keep separate, a clear approach to jointly acquired property, and a straightforward spousal support framework. When one partner has a closely held business, significant stock options, complex real estate holdings, or a family trust with its own terms, a traditional attorney-drafted approach is likely worth the additional cost because the document needs to handle more nuance than a template-based process accommodates well.
What the cost does not include: attorney review fees
Even when using a platform-based service, both partners should have the final document reviewed by independent counsel before signing. This review is not the same as having an attorney draft the prenup from scratch, and it costs much less. An attorney reviewing a completed prenup document typically charges one to three hours of their time, which at standard rates comes to $350 to $1,500 per partner depending on the market and the attorney. Some prenup platforms include attorney review as part of their service fee. Others offer it as an add-on or direct couples to a network of attorneys who work with platform-generated prenups regularly.
The value of independent review is not just legal compliance. An attorney reviewing the document for one partner can flag provisions that are unusually one-sided, explain what the partner is agreeing to in plain terms, and advise whether any provisions are likely to be challenged in the partner's home state. A partner who skips this step and later claims they did not understand the agreement has a weaker position than a partner who reviewed it with their own counsel and signed anyway.
When spending more is worth it
A prenup is not a purchase where cheaper is always the smarter choice. The document is only valuable if it holds up in court, and a poorly drafted prenup that gets thrown out at divorce leaves both partners worse off than if they had spent more upfront. There are situations where the traditional attorney-drafted approach is worth every dollar.
Business ownership is the clearest case. If one partner owns a business or has significant equity in a startup, the prenup needs to address how the business's value at the time of marriage is characterized, how growth in value during the marriage is treated, and what happens to the business in various divorce scenarios. Getting this wrong can expose a business to division or force a buyout that disrupts operations. An attorney with experience in business valuations and marital property is better positioned to draft these provisions than a general template.
Second marriages, particularly when children from a prior relationship are involved, also warrant fuller attorney involvement. The prenup may need to coordinate with existing estate planning documents, address obligations from a prior divorce, and protect assets intended to pass to children from the first marriage. These interactions require more careful drafting than a first-marriage prenup between two people starting with modest assets.
Very high net worth situations, estates above several million dollars, also benefit from full attorney involvement because the stakes of an unenforceable prenup are proportionally higher and the assets involved are more complex to characterize and divide.
Hidden costs worth anticipating
The attorney fees are the obvious cost, but several other expenses come up in the prenup process that couples sometimes do not anticipate. Financial disclosure is a legal requirement, and preparing it properly may require organizing account statements, property appraisals, business valuations, and debt documentation. If a business interest needs a formal valuation, that alone can cost $1,500 to $5,000 depending on the complexity of the business. Real estate appraisals for property that will be defined as separate add another $300 to $600 per property.
Notarization is required in some states, though not all, and is generally a minor cost. If the prenup needs to be filed with a court or recorded in a public record, there are filing fees. These are edge cases, but they add up when they apply.
Revision costs also catch people off guard. If negotiations between partners require multiple rounds of changes after an initial draft, each round of attorney time adds to the bill. Using a platform-based service that guides both partners through negotiation before generating a document tends to reduce revision cycles because disagreements are surfaced and resolved during the question-and-answer process rather than after a draft is already on paper.
A Real Scenario
A couple in Chicago is getting married. She is a nurse with a modest salary, no significant assets, and student loan debt. He owns a small restaurant that he has operated for four years, currently valued at approximately $400,000. They want a prenup that keeps the restaurant as his separate property while treating their future home and joint savings as marital property. They use HelloPrenup to work through the framework together, then each spends around $800 on independent attorney review. Total cost: roughly $1,800 combined, plus a separate restaurant valuation they had done for $2,200. A fully attorney-drafted prenup for the same situation would likely have run $6,000 to $9,000 in the Chicago market. The document they signed covers the same ground and was reviewed by counsel for both parties.
Frequently Asked Questions
Is a cheap prenup worth it, or does lower cost mean lower quality?
Cost and quality are not the same thing in prenup drafting. A $500 online template downloaded without guidance or attorney review is a different product from a $500 to $800 platform-generated prenup that both partners completed together and had reviewed by attorneys. The former is a risk. The latter, for couples with straightforward finances, is a legitimate alternative to full attorney drafting. The question to ask is not how much it costs but whether both partners had independent legal review, whether financial disclosure was complete, and whether the document was executed correctly under the relevant state's requirements.
Can we just use one attorney to save money?
One attorney can only represent one partner. An attorney who drafts a prenup is representing the partner who hired them, and their duty of loyalty runs to that client. The other partner can review the document with the same attorney for general information, but that attorney cannot advise them on whether the terms are favorable or what they might be giving up. Using a single attorney is a common cost-cutting approach, but it leaves the unrepresented partner more vulnerable to a later challenge on the grounds that they did not have independent advice. If budget is a constraint, a better approach is one attorney drafting and a second attorney doing a limited-scope review for the other partner, which is less expensive than full dual representation.
Does location affect how much a prenup costs?
Yes, substantially. Attorney billing rates track local market conditions, and a prenup that costs $3,000 in a mid-size Midwestern city might cost $8,000 or more in New York or San Francisco for essentially the same document. Online platforms charge the same regardless of location, which is part of their appeal for couples in high-cost legal markets. The state's legal requirements also affect cost indirectly: California's mandatory seven-day waiting period and specific disclosure requirements add procedural steps that can increase attorney time, while states with simpler requirements may produce shorter engagements.
What is a reasonable budget for a prenup if our finances are simple?
For a couple with relatively simple finances, no business interests, no significant prior real estate, and no children from prior relationships, a budget of $1,500 to $3,500 total is realistic using a platform-based service combined with independent attorney review for each partner. If both partners want full attorney representation from separate attorneys, budget $3,000 to $6,000 in most markets outside of New York and California, where the range runs higher. The main variables are how many rounds of negotiation are needed and whether any assets require formal valuation before the prenup can accurately characterize them.