Courts don't invalidate prenups for being 'online' — they invalidate them for how they were signed: not voluntary, no full disclosure, signed too late, missing your state's formalities, or unconscionable terms. Get those five right and a $700 platform agreement stands like any $5,000 lawyer draft. Electronic signatures have been federally valid since ESIGN (2000).
Let’s name the fear precisely: you’re not afraid of the document. You’re afraid of spending $700, planning around it for two years, and then having a judge in a courtroom wave it off with “this isn’t worth the paper.”
That fear is the last real objection to doing this — so let’s kill it with the actual rules, not marketing reassurance.
The good news the industry undersells
No court in America invalidates a prenup because it was made online.
Not one. Electronic signatures have been federally recognized since the ESIGN Act of 2000 (and state UETA laws before that). Courts don’t ask where your document was typeset — they ask how it was signed. “The software did it” has never appeared on a list of reasons a judge set aside an agreement.
Meanwhile, lawyers’ $5,000 prenups get tossed every week — for process failures that had nothing to do with the price tag.
Where you got it doesn’t decide your fate. How you execute it does.
The 5 things courts actually check
1. Full financial disclosure — the #1 killer
Both of you listed assets, debts, and income in writing, attached to the agreement, signed. Hidden a $400,000 account? That alone can void the entire thing — no matter who drafted it.
Good platforms force this: you can’t proceed without completing both schedules. Try that with an unsigned pile of PDFs.
2. Genuine voluntariness — no duress
Signed freely, with time to think, no threats to call off the wedding, no last-minute ambush. Courts look hardest at timing: documents presented 72 hours before the wedding smell like coercion even when they aren’t.
Start early (3–6 months) and the duress argument never gets a foothold.
3. Timing before the wedding
Both parties must sign before the ceremony. Post-wedding changes become a different, harder instrument (a postnup) that gets scrutinized more closely. This one is binary: before the aisle, or you’re in a different legal universe.
4. Your state’s formalities
Written (always), signed by both (always), plus whatever your state adds: notarization, witnesses, specific statutory language. Reputable platforms build your state’s requirements into the signing ceremony — but only if you follow it exactly. Skipping the notary your state requires is how cheap documents die.
5. Terms that aren’t unconscionable
Courts rarely second-guess substantive fairness — prenups don’t have to be “equal.” But terms that are shocking at signing (one spouse left with nothing while the other keeps everything, stacked with hidden disclosure) give judges a reason to intervene. Fair process protects unfair-ish terms; unfair process protects nothing.
Where DIY genuinely fails (and where it wins)
Online platforms win when: finances are standard — a house, accounts, retirement, debt, maybe kids from before. Both of you answer the same guided questions, state clauses load automatically, disclosures are mandatory, and the signing ceremony includes your state’s notary/witness steps. That’s a better process than most lawyers provide for the money.
You need a lawyer when:
- A business, partnership interest, or intellectual property needs valuation clauses
- One side has far more assets or income (fairness drafting gets subtle)
- Trusts, inheritance structures, or real estate in multiple states are involved
- One spouse isn’t fluent in the language being signed
- You want aggressive support waivers or unusual estate terms
The realistic hybrid — and what most careful couples do — is platform for structure, lawyer for the two or three hard clauses. You pay an attorney for two hours instead of thirty.
The 30-second validity check before you sign
Before the wedding day, confirm all five:
- ☐ Both disclosure schedules complete and attached?
- ☐ Signed willingly, weeks ahead — not under deadline pressure?
- ☐ Signed before the ceremony?
- ☐ Notary/witness steps for your state completed on camera/in person as required?
- ☐ Neither of you reading it for the first time at signing?
Five checkmarks. That’s the whole ballgame — no courthouse cares about anything else.
The honest bottom line
Online prenups are valid because process is valid — and process is something you control completely. The platforms in this space built their businesses on enforceability, because one tossed agreement destroys their reviews.
Next: verify your state’s rules and price range on the cost calculator (it reflects local attorney rates if you want the hybrid approach), and run the 17-point checklist — layers 1 and 3 are exactly what courts examine. Still nervous about the conversation that starts it all? The scripts are here.