What to Document Before You Separate: A Complete Checklist

When you search for divorce preparation, most of what comes up reads like a lawyer’s playbook. Filings, motions, jurisdiction, statutes. Useful, eventually — but not what most people actually need in the first quiet weeks, when they’re trying to figure out what to do before anything changes.

This isn’t that. This is the other side of it: the documentation work that happens before you separate, while you’re still in the house, still sharing accounts, still able to see what needs to be seen. It’s the work that’s easy to put off and very hard to do later.

Here’s why it matters. Studies have consistently found that a significant share of spouses — estimates run from roughly a third to nearly half — engage in some form of financial deception during divorce. That doesn’t mean yours is. It means that whether you’re walking away from a difficult marriage or one that’s simply run its course, having a clear, timestamped record of what existed before you left is one of the most useful things you can do for yourself. Not to “win.” Just to make sure nothing quietly disappears between today and the day you sit down with a professional.

Why “before” matters

Once separation is announced — or once one of you moves out — a lot changes, fast. Joint accounts get revisited. Storage units get opened. The shared laptop gets reformatted. Items that have been in the same place for years suddenly aren’t.

That’s not always suspicious. Sometimes people just take things. Sometimes the person moving out grabs what they consider theirs. But if you’re the one who didn’t know about a brokerage account, or who only learned about a side business last month, or who always let your spouse handle the finances, “before” is your window. After that window closes, reconstructing what was there gets harder and more expensive.

Documentation done before separation is calm, private, and reversible. Documentation done after often feels adversarial — because by then, it has to be.

The complete pre-separation documentation checklist

Work through this in whatever order you can. You don’t have to finish it in a weekend. Just start.

Financial accounts

• Checking and savings statements for the last 12 months, all institutions
• Retirement accounts — 401(k), IRA, Roth, pension statements
• Brokerage and investment accounts
• Health Savings Accounts
• Crypto wallets and exchanges (note balances and wallet addresses, not just keys)
• Any accounts held in only one spouse’s name that you know about
• Any accounts you suspect exist but don’t have full visibility into (this is the time to find out)

Income and tax records

• Federal and state tax returns for the last 3 years
• W-2s and 1099s
• Pay stubs from the last 3–6 months
• K-1s if either spouse owns a business interest
• Any reported side income

Real estate and vehicles

• Deeds for any property owned — primary residence, vacation home, rental
• Mortgage statements and current balances
• Vehicle titles
• Boats, RVs, recreational vehicles
• Loan documents for any financed purchases

Insurance

• Life insurance policies (note beneficiaries)
• Health insurance
• Homeowners or renters insurance
• Umbrella policies
• Disability insurance
• Employer-held policies

Debts

• All outstanding loans — mortgage, auto, student, personal
• Credit card balances and recent statements
• Medical debt
• Co-signed obligations
• Any debts held in only one spouse’s name

Business interests

• Formation documents (LLC, S-corp, partnership)
• Business bank statements
• Business tax returns
• Ownership percentages
• Any business valuations already on file

Personal property

This is the part most people skip, and it’s the part that often becomes the longest argument later. Photograph and document:

• Jewelry, watches, heirlooms
• Art and significant décor
• Designer items, handbags, collectibles
• Electronics — TVs, computers, tablets, cameras
• Furniture, especially antiques or inherited pieces
• Tools, equipment, sporting goods
• Firearms (note make, model, and serial number — do not photograph in a way that creates risk)
• Wine, instruments, anything with meaningful resale value
• Anything either of you brought into the marriage

Digital accounts and access

• Shared password manager access, or at minimum an inventory of which services exist
• Email accounts either of you use
• Cloud storage (iCloud, Google Drive, Dropbox)
• Subscription services with stored value
• Domain names, websites, online businesses

Pre-marital and inherited assets

Anything you brought into the marriage, or received as an inheritance or gift during it. Often overlooked, and often meaningful in any later settlement.

How to actually do this without it becoming a project

The reason people don’t do this is rarely lack of knowledge. It’s that it feels overwhelming, or paranoid, or both. A few practical notes:

• Photographs are your friend. A timestamped photo of every room, every shelf, every drawer in shared spaces takes less than an hour and is more useful than you think.
• Don’t take originals. Photograph documents in place, or scan them and store the scans somewhere your spouse doesn’t access. Never remove original paperwork from the house.
• Use a tool built for this. A phone-based inventory app that timestamps photos and tags items by ownership (yours, mine, shared) makes this go faster than a spreadsheet and is easier to defend later than “I just had some photos.”
• Save in two places. A cloud account your spouse can’t see, and ideally an offline copy somewhere safe outside the home.
• Go incrementally. One room per evening is fine. A closet on Saturday morning. You don’t have to do it all at once.

What not to do

A few things are worth being clear about:

• Don’t move or hide money yourself. Even if you suspect your spouse is. The legal optics of moving funds are bad in every jurisdiction.
• Don’t access accounts you’re not authorized on. There’s a meaningful line between documenting what you can see and snooping through a personal account, and it matters.
• Don’t tip your hand before you’re ready. If you’re planning to separate, the documentation work is most useful before your spouse knows it’s happening. Once it’s known, the picture changes.
• Don’t destroy anything. Even documents you’d rather not see. The record should be complete, not curated.
• Don’t do this alone if it’s unsafe. If there’s any history of financial control, surveillance, or abuse, this checklist is a starting point, not a script. Talk to a domestic violence advocate or a family law attorney first.

A note on safety

If your situation involves any form of abuse — financial, emotional, or physical — the way you document is different. Some of these steps require time and quiet access you may not have. Advocates at the National Domestic Violence Hotline (1-800-799-7233) can help you think through what’s safe to do and how to do it without escalating risk. You don’t owe anyone a perfect paper trail. You owe yourself safety first.

The point of all this

Documentation isn’t about preparing for a fight. It’s about making sure that when you do sit down with a lawyer, a mediator, or your spouse, you can speak from a place of knowing — not guessing. It’s the difference between “I think there might be more money somewhere” and “here’s what existed in March.” One of those conversations goes very differently from the other.

You don’t have to do this perfectly. You just have to do it before the picture changes.

If a household inventory tool would help — something to photograph items, tag ownership, capture fair-market value, and put together a clean report you can hand to an attorney — that’s what HalfYourStuff is built for. It’s the tool I wished I’d had. Use it if it’s useful. Ignore it if it isn’t.