Understanding Marital vs. Non-Marital Property
Illinois follows the equitable distribution model, meaning marital property is divided fairly (not necessarily equally). However, non-marital property generally remains with its original owner. For cryptocurrency, the key question is: When and how was it acquired?
Cryptocurrency as Non-Marital Property
Under 750 ILCS 5/503, cryptocurrency may be classified as non-marital property if:
- Acquired before marriage — Bitcoin purchased before the wedding date
- Received as gift or inheritance — Crypto inherited from family or received as a personal gift
- Purchased with non-marital funds — Crypto bought with inherited money or pre-marital savings
- Excluded by valid agreement — Prenuptial or postnuptial agreement specifically addressing crypto
The Commingling Challenge
The most common way non-marital crypto becomes marital property is through commingling:
- Depositing marital income into accounts holding pre-marital crypto
- Using marital funds to pay exchange fees or gas costs
- Reinvesting crypto gains into new tokens during marriage
- Transferring between wallets that mix marital and non-marital assets
Tracing Requirements
To maintain non-marital status, you must be able to trace the original asset through all transactions. This requires meticulous record-keeping of wallet addresses, transaction hashes, and account statements.
Prenuptial Agreements and Cryptocurrency
A properly drafted prenuptial agreement can:
- Clearly designate specific wallets as non-marital property
- Address appreciation — will gains during marriage remain non-marital?
- Establish valuation methodology for future reference
- Define disclosure requirements during marriage
Requirements for Enforceable Prenups
Illinois courts require prenuptial agreements to be:
- In writing and signed by both parties
- Entered voluntarily without duress
- Based on fair and reasonable disclosure
- Not unconscionable at enforcement
Postnuptial Agreements
Already married? A postnuptial agreement can still protect cryptocurrency by:
- Reclassifying marital crypto as separate property
- Establishing ownership of future acquisitions
- Setting valuation terms for potential future divorce
Practical Protection Strategies
1. Maintain Separate Wallets
Keep pre-marital crypto in dedicated wallets never used for marital transactions.
2. Document Everything
Preserve screenshots of holdings at marriage date, transaction records, and original purchase confirmations.
3. Avoid Commingling
Never deposit marital funds into accounts holding non-marital crypto, even for fees.
4. Consider Trusts
A properly structured trust can provide additional asset protection and estate planning benefits.
Key Takeaways
Protecting cryptocurrency in Illinois divorce requires proactive planning and meticulous documentation. Whether through prenuptial agreements, careful separation of assets, or proper tracing records, the time to protect your crypto is before problems arise—not during divorce proceedings.
Frequently Asked Questions
How do Illinois courts divide cryptocurrency in divorce?
Illinois treats cryptocurrency as marital property under 750 ILCS 5/503. Courts require professional valuation at a specific date (typically judgment or trial date) due to volatility. Division methods include liquidation, in-kind transfer, or offsetting against other assets. Forensic blockchain analysis may be necessary to trace wallet ownership and transaction history.
Can my spouse hide cryptocurrency during divorce?
Attempting to hide crypto assets is discoverable and carries serious consequences. Blockchain forensics can trace wallet addresses, exchange transactions, and mixing services. Illinois courts impose sanctions for asset concealment, including adverse inference instructions and disproportionate property awards.
What cryptocurrency disclosures are required in Illinois divorce?
Full disclosure is mandatory under Illinois Supreme Court Rule 13.3.1. You must disclose all digital assets: cryptocurrency holdings, NFTs, DeFi positions, staking rewards, and exchange accounts. Failure to disclose constitutes fraud and can result in sanctions, perjury charges, and reopening the judgment.
Written by Jonathan D. Steele
Chicago divorce attorney with cybersecurity certifications (Security+, ISC2 CC, Google Cybersecurity Professional Certificate). Illinois Super Lawyers Rising Star 2016-2025.
Free Case AssessmentFor more insights, read our Divorce Decoded blog.