The Divorce Firewall: Prenups & Asset Protection

The Divorce Firewall: Prenups & Asset Protection

Love is emotional; marriage is financial. How to insulate pre-marital wealth from the 50% divorce guillotine via a bulletproof Prenup.

Dec 25, 2025 Code Authority: Team BMT ASSET PROTECTION

Executive Summary

  • The Default Contract: If you don’t sign a Prenup, you are automatically signing the state’s default contract (often Community Property or Equitable Distribution), which may split your assets 50/50.
  • Separate Property: Assets owned before marriage are generally safe, BUT the appreciation on those assets (e.g., your startup’s growth) can become marital property without a Prenup.
  • The “Duress” Defense: To be enforceable, a Prenup must be signed well in advance (ideally 6 months). Signing it on the eve of the wedding is grounds for a judge to void it due to coercion.

The “Commingling” Poison

Never mix marital money with separate property. If you deposit a joint paycheck into your pre-marital investment account, the entire account may be “tainted” and reclassified as marital property. Keep ledgers strictly separate.

Mechanic: The Enforceability Shield

6 Months
Prior to Wedding
Disclosure
Must be 100%
Dual
Legal Counsel
No Kids
Custody Limits

Simulation: Wealth Erosion (Divorce Scenario)

Impact on $20M Pre-Marital Asset Appreciation
No Prenup (State Law)-$5M Loss (Appreciation Split)
Growth is Shared
Weak Prenup (Commingled)Judge Discretion (Risky)
Likely Contested
Ironclad Prenup (Clean)100% Protected
Assets Remain Separate
Category Without Prenup With Ironclad Prenup
Pre-Marital Assets Generally Separate (Risk of mixing) Permanently Separate
Asset Appreciation Often Marital (Shared) Remains Separate
Alimony (Spousal Support) Court Decided (Unpredictable) Pre-Defined / Waived

“A Prenup is not a plan for divorce. It is an insurance policy for peace of mind, ensuring that marriage remains about love, not leverage.”

Essential Resources