How much does a prenup cost? Build yours and see the total.

With traditional lawyers you usually pay two of them, one for each partner, and many bill by the hour. ContractsCounsel puts the average family lawyer at $200 to $350 an hour.

The hours come from the back and forth. Each round of negotiation means both lawyers read the draft, talk with their client and revise, so every change is billed on both sides. A couple who already agrees on the terms pays mostly for drafting and review. A couple who negotiates pays for the negotiation too.

HelloPrenup's own FAQ puts a traditional law firm prenup at $4,500 to $10,000 per couple, citing its 2024 survey of family law attorneys.

Price is not what a court weighs. Courts look at how the agreement was made: whether each partner fully disclosed their finances, whether both signed voluntarily, whether there was enough time to read it and get advice before the wedding, and whether it was signed the way the state requires. Some states, for example New York and Minnesota, require formal signing steps such as acknowledgment or witnesses.

No platform and no lawyer can guarantee that a court will enforce a prenup. By HelloPrenup's own description, the $599 agreement does not include an attorney working on your specific prenup. Separate attorneys fit better when you want someone advising each of you on your own terms, and HelloPrenup's FAQ says a spousal support waiver needs an attorney for each partner in Alabama, California, New York and Washington. A lawyer licensed in your state can tell you what your state requires.

On HelloPrenup, one partner pays the $599 and it covers the agreement for both of you, according to its FAQ. How you split it is up to you.

With traditional lawyers, each partner usually hires and pays their own. HelloPrenup's FAQ notes that one attorney cannot represent both partners, and its attorney representation is priced the same way: $799 per partner, each with their own independent attorney.