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One of the most important estate planning documents you'll ever create is one most people have never heard of.
It's not your will. It's not your trust. It's not your power of attorney.
It's called a Letter of Instruction — and it's the practical roadmap your family will desperately need if something unexpected happens to you. It's also the one document most estate plans are missing.
Your will and trust handle the legal side of your estate. But they don't tell your loved ones how to actually manage things when you're gone. Where are the accounts? Who is your CPA, financial advisor, and estate planning attorney? What are the login credentials? How do you access phones, emails, and social media accounts?
That's what a Letter of Instruction answers. And at Arcadia Private Wealth, we created The Family Binder™ specifically to help families build this document.
A Letter of Instruction is a document that gives your family members or executor all the practical information they need to manage your financial life if you're no longer able to.
It lists your accounts, your advisors, your legal documents, your login credentials, your wishes — everything the people you love would need to know but probably don't. Paired with your other estate planning documents, it ensures your estate can be settled the way you intended, by people who aren't left guessing.
Here's a simple story that illustrates why this matters.
Dan and Stacy have been married for 30 years. Dan likes to manage the household finances. The mortgage auto-pays from his main checking account. The credit cards are in his name. Dan manages the insurance policies, pays the bills, and is the primary contact for their financial advisor and CPA.
One day, something unexpected happens to Dan. He can no longer manage the household finances. Stacy has to take over.
Where does she start? Who does she call? Where is the mortgage login? What are the insurance policy numbers? Which accounts even exist?
Without a Letter of Instruction, Stacy is starting from scratch at the worst possible moment.
A thorough Letter of Instruction should cover the following:
Financial accounts — Bank accounts, investment accounts, retirement accounts, and how to access each one. Include custodian names (Schwab, Fidelity, Vanguard, etc.), account numbers, website addresses, and login credentials.
Debts and liabilities — Mortgage, HELOC, credit cards, auto loans, personal loans, and lines of credit. Include lender names, balances, payment schedules, and auto-pay account information.
Important professionals — Your financial advisor, CPA, estate planning attorney, insurance agent, and any other professionals who play a role in your financial life. Include their names, contact information, and what they handle.
Legal documents — Where to find your will, trust, power of attorney, healthcare directive, birth certificates, social security cards, real estate deeds, and beneficiary designation forms.
Insurance policies — Life, health, homeowners, auto, and umbrella policies. Include company names, policy numbers, coverage amounts, and how to file a claim.
Physical assets — The location of jewelry, artwork, collectibles, and other valuable items that won't show up on a brokerage statement.
Online information — Login credentials for email accounts, financial institutions, and social media. Consider a password manager like LastPass or Keeper as a secure complement to your written document — both offer an "Emergency Access" feature specifically designed for this purpose.
Pet care — Instructions for caring for your pets, including their vet, medications, feeding schedule, and who should take them.
Your home — Mortgage details, HOA information, utility accounts, appliance warranties, maintenance contractors, and paint colors. More practical than it sounds when someone else has to manage it.
This isn't an exhaustive list — but it covers the essentials. Add anything else you believe would help the people who will be reading this document under difficult circumstances.
Most people know they should have a Letter of Instruction. Very few actually have one — because sitting down to organize all of this from scratch is overwhelming.
That's exactly why we created The Family Binder™.
It's a free, 75-page fillable PDF that walks you through every section listed above — and more — in a structured, easy-to-complete format. Instead of staring at a blank document wondering where to start, you simply work through each section and fill in what applies to your family.
The Family Binder covers all seven areas your family would need:
Section 1 — Family & Friends: Key contacts, including adult family members, children, relatives, neighbors, and pet care details.
Section 2 — Our Home: Property information, appliances, paint and flooring specs, maintenance contacts, and utility accounts.
Section 3 — Insurance & Medical: Life, home, auto, and health insurance policies — plus medical information, doctors, medications, and allergies for each family member.
Section 4 — Personal Finance: Your advisor team, bank accounts, retirement accounts, investment accounts, rental properties, and charitable giving.
Section 5 — Income & Debt: W-2 income, Social Security, pensions, credit cards, mortgage, HELOC, and other outstanding loans.
Section 6 — Estate Documents: Wills, trusts, powers of attorney, and guardian provisions for minor children.
Section 7 — Online Information: Phone passwords, email account details, and social media logins.
Set aside an afternoon. The Family Binder is designed to be completed in one focused sitting. Put on some music, grab a cup of coffee, and work through it section by section. Most people find it takes two to three hours.
Review it with your spouse or partner. Once it's complete, sit down together and walk through it. The whole point is that the people you love can find what they need — make sure they know the document exists and where to find it.
Store it securely. A fireproof home safe, a safety deposit box, or a secure cloud folder like Google Drive or Dropbox are all good options. Wherever you store it, make sure at least one trusted family member has access.
Update it regularly. Your accounts, relationships, and circumstances will change over time. Set a reminder to review your Family Binder once a year — even a quick 30-minute review can catch important gaps.
Consider a password manager. Rather than listing every username and password in the Binder itself, consider using a password manager like LastPass or Keeper and documenting the master login in the Binder. This keeps your credentials secure while ensuring your family can access everything they need.
A Letter of Instruction — whether it's a formal document or a completed Family Binder — is one of the greatest gifts you can give the people you love. It turns an overwhelming situation into a manageable one. It replaces confusion with clarity at exactly the moment your family needs it most.
The hard part isn't knowing you should do it. The hard part is actually sitting down and doing it.
The Family Binder makes that easier. It's free, it's fillable, and it covers everything. Head over to our homepage and subscribe to our Newsletter. We'll send you a copy of The Family Binder a few minutes later!
Disclosure: This article is for informational purposes only and does not constitute personalized tax, legal, or investment advice. Tax rules are subject to change. Please consult a qualified financial advisor and CPA for guidance specific to your situation. Arcadia Private Wealth LLC is a Registered Investment Adviser in the state of California. Advisory services are only offered to clients or prospective clients where we are properly registered or exempt from registration.
Grant Webster, CFP®, TPCP®
Founder, Wealth Advisor