By Aaron Thomas, Esq. · Updated October 5, 2026
In 2026, a prenup typically costs between $600 and $10,000 or more per couple, depending on how the agreement is created.
A DIY online template runs about $600, software-drafted agreements with attorney review run $2,000 and up, and a traditional attorney billing hourly typically costs $2,500 to $10,000 or more.
At Prenups.com, a prenup is a flat $3,500. No hourly billing.
| Approach | Typical cost (per couple) | When a lawyer gets involved | Best for |
|---|---|---|---|
| DIY online template | $600 | Never | Simple finances, no major assets, willing to risk enforceability |
| Software-drafted + attorney review | $2,000 and up | After the document is generated | Couples who have already agreed on every term and want it documented |
| Attorney-drafted, flat fee (Prenups.com) | $3,500 flat, plus independent review for your partner | From the first conversation, before anything is drafted | Couples who want an attorney to design the agreement around their goals, at a predictable price |
| Traditional hourly attorney | $2,500 to $10,000+ | From the first conversation | Couples with an existing attorney relationship, open-ended budget |
A prenup drafted by a licensed attorney who knows Washington, DC’s enforceability rules is a fundamentally different product from an online template. A $3,500 agreement that holds up in court is worth more than a $600 template that does not.
Key Takeaways
- In 2026, a prenup in Washington, DC typically costs between $600 and $10,000 or more per couple, depending on how it is created. Prenups.com charges a flat $3,500, with no hourly billing.
- The $3,500 flat fee is about 8 percent of the $42,000 average Washington, DC wedding cost reported by The Knot 2026 Real Weddings Study.
- D.C. Code §§ 46-501 to 46-510 expressly covers domestic partnerships as well as marriages, including domestic partner support and the termination of a partnership.
- A challenger attacking a Washington, DC agreement as unfair has to show both that it was unconscionable and that disclosure was inadequate, and fairness is judged as of signing.
- Washington, DC requires neither witnesses nor independent counsel for a valid agreement, so the cost question comes down to drafting quality and process, not formalities.
What a Prenup Costs in Washington, DC
A prenup in Washington, DC typically runs between $2,500 and $10,000 when an attorney bills hourly. The low end usually means a simple agreement between two people with uncomplicated finances, and at the very bottom of that range you are often paying for a near-form document from an attorney who does not specialize in these agreements. Add a business, significant premarital assets, children from a prior relationship, or heavy negotiation, and the number climbs toward the top of the range.
Put the flat fee in context. The Knot 2026 Real Weddings Study, which surveyed couples married in 2025, puts the average Washington, DC wedding at $42,000 for the ceremony and reception. A $3,500 agreement is about 8 percent of that figure, and it decides who owns what for as long as the marriage lasts.
A Statute That Names Domestic Partners
Washington, DC’s premarital agreement law, D.C. Code §§ 46-501 to 46-510, has a feature most states’ statutes lack. It expressly covers domestic partnerships as well as marriages, including domestic partner support and what happens when a domestic partnership ends. A couple in a domestic partnership who want written financial terms are working inside the same statute as a married couple, not around it.
For anyone in that position, that matters for drafting. An agreement written for a domestic partnership should be built with that statute in mind from the first draft, rather than adapted from a template written for marriage alone.
What Moves the Price Up or Down
Complexity does most of the work. Two people early in their careers with straightforward assets need a simpler agreement than a couple bringing retirement accounts, equity compensation, a professional practice, a business, or significant student debt into the relationship. Each added moving part means more drafting and more careful legal work.
Negotiation is the second lever. A couple aligned on the terms moves quickly. A couple working out spousal support or how a business will be treated spends more time, and under hourly billing, more time is the entire bill. Independent review for the other partner is a third factor. Washington, DC does not require it, but it adds a separate cost and it strengthens the agreement by showing both people understood what they signed.
Why the Meter Matters: Hourly Billing vs. a Flat Fee
Most Washington, DC family law attorneys bill prenups by the hour. That sounds fair until you try to budget for it. The final bill depends on how many rounds of revision you want, how many questions come up, and how long a negotiation runs, none of which you can know on day one. The estimate you hear at the start is rarely the invoice you receive at the end.
Thinking about a prenup?
Talk to an attorney before you decide. A 30-minute consultation is $150, credited toward your agreement if you move forward.
Schedule a Consultation →A flat fee reverses that. Prenups.com charges $3,500 for a Washington, DC prenup, with no hourly billing, so the price is known before the work begins. The attorney-drafted approach also changes when a lawyer shows up. Instead of reviewing a document after software generates it, an attorney is in the conversation from the start, before anything is drafted, which is where the agreement gets designed around your actual goals.
How Washington, DC Courts Treat a Prenup
Without an agreement, a Washington, DC court divides marital property under equitable distribution, meaning the judge decides what is fair, which is not always the same as equal. A prenup replaces that open question with terms you chose.
Under D.C. Code § 46-506, a challenger attacking an agreement as unfair has to show it was unconscionable and that disclosure was inadequate. Showing just one of those is not enough, and the burden sits on the person making the challenge. Fairness is judged as of the date of signing, not years later. Other grounds, such as a claim that the agreement was not signed voluntarily, remain separate.
“Washington, DC’s statute reaches domestic partners as well as married couples, and a challenger attacking an agreement as unfair has to show both unconscionability and inadequate disclosure, not just one,” says Aaron Thomas, Esq., founder of Prenups.com.
That standard favors a properly built agreement, but it only helps if the disclosure and the drafting were done right. A generic template that skips financial disclosure gives a challenger exactly what they need. A prenup that is enforceable in court starts with full disclosure, clear terms, and a signing that nobody was pressured into.
Starting the Process
The process begins with a consultation to understand your situation and goals, followed by financial disclosure from both people, drafting, a round of review and revisions, and signing. Washington, DC does not require witnesses, so signing is straightforward once the agreement is ready. For the full picture of what the flat fee covers, see the flat-fee pricing.
Want a Washington, DC prenup on a flat fee? Every Washington, DC agreement is prepared by our attorneys, including a licensed attorney as counsel of record, from the first draft through signing. Schedule a consultation.
Frequently Asked Questions
How much does a prenup cost in Washington, DC?
In 2026, a prenup typically costs between $600 and $10,000 or more per couple, depending on how it is created. A traditional attorney billing hourly usually runs $2,500 to $10,000 or more. At Prenups.com, a Washington, DC prenup is a flat $3,500, with no hourly billing.
Does Washington, DC’s prenup law cover domestic partnerships?
Yes. D.C. Code §§ 46-501 to 46-510 expressly covers domestic partnerships as well as marriages, including domestic partner support and the termination of a domestic partnership.
How hard is it to challenge a prenup in Washington, DC?
A challenger attacking an agreement as unfair has to show both that it was unconscionable and that disclosure was inadequate, and the burden is on the challenger. Fairness is judged as of signing. Claims such as lack of voluntariness are separate grounds.
Does a Washington, DC prenup need witnesses or a lawyer for each partner?
No. Washington, DC does not require witnesses or independent counsel for a valid agreement. Independent review for your partner is still worth considering, because it helps show that both people understood the terms.
Is a $600 online template enough in Washington, DC?
Rarely. A template is not built around your finances or your goals, and it comes with no attorney to make sure disclosure and drafting hold up. A flat $3,500 agreement that holds up in court is worth more than a $600 template that does not.
Does the $3,500 flat fee include my partner’s own attorney?
No. The $3,500 flat fee is for the agreement itself, and independent review for your partner is separate, which is why the cost table lists it as an addition. Washington, DC does not require it, but it strengthens the agreement.
Sources
- D.C. Code §§ 46-501 to 46-510 (premarital agreements), including § 46-506 (enforcement)
- The Knot 2026 Real Weddings Study, average wedding cost in Washington, DC: https://www.theknot.com/content/what-does-the-average-wedding-cost
- U.S. Census Bureau, “Census Bureau Releases New Estimates on America’s Families and Living Arrangements” (median age at first marriage, 2025: 30.8 for men, 28.4 for women): https://www.census.gov/newsroom/press-releases/2025/families-and-living-arrangements.html
