An estate plan is a snapshot of your life at the moment you signed the documents. Your life changes; the plan often doesn’t. Most estate disputes and surprises trace to plans that were valid the day they were drafted but were never updated — an ex-spouse still listed as 401(k) beneficiary, a guardian named for kids who are now in their 30s, a trust funded with assets that have long since been sold. The fix is a simple rhythm: a calendar review every 3–5 years, plus a triggered review after any of the life events below.
Calendar-Triggered Reviews
- Every 3 to 5 years — even if nothing dramatic has happened, things drift. Beneficiary designations get outdated, the executor moved across the country, the financial picture is bigger or smaller than it was. Block out one Saturday morning, pull out your documents, and read them critically
- After any major tax-law change — federal estate-tax exemptions, state estate-tax thresholds, IRA inheritance rules (the SECURE Act in 2019 wiped out the “stretch IRA” for most non-spouse beneficiaries — many trusts written before then are now suboptimal). If you can’t track these on your own, an annual call with your estate-planning attorney or financial advisor is worth scheduling
Family Events That Trigger a Review
- Marriage. A new spouse usually needs to be added as primary beneficiary on retirement accounts (federal law actually requires spousal consent to name someone else on a 401(k)). Wills typically need updating to address the new spouse’s rights and to coordinate with any prenup
- Divorce. Some states automatically revoke provisions favoring an ex-spouse in a will; few apply that to retirement and life-insurance beneficiary designations — those keep running until you change them. The single most common “I can’t believe this happened” estate story is an ex receiving a substantial benefit because the deceased never updated the form
- Remarriage — especially with children from a prior marriage. See Estate Planning for Blended Families — the default plan (“everything to my new spouse, then to the kids”) often ends with the kids inheriting nothing
- Birth or adoption of a child or grandchild. Add them to beneficiary lists if appropriate; update guardian designations for minor children; consider an education-funding trust
- Death of a named beneficiary, executor, or guardian. Without an update, contingent beneficiaries inherit or the court reassigns roles — usually fine, but worth confirming the result is what you’d want
- A beneficiary develops special needs (disability, addiction, financial instability, marriage to someone you don’t trust). Inheritances to a special-needs beneficiary can disqualify them from Medicaid and SSI — a special-needs trust handles this. Inheritances to a beneficiary with addiction or creditor issues benefit from a spendthrift trust
- An adult child marries or divorces. Worth thinking about how an outright inheritance to a married adult child interacts with their marriage
- A beneficiary’s circumstances change dramatically — comes into their own money, has serious legal trouble, becomes estranged. May or may not warrant changes; worth considering

Financial Events That Trigger a Review
- A large inheritance, business sale, or windfall. May push you into estate-tax territory or change the calculus on trusts vs outright distributions
- Retirement. Different asset mix (more retirement accounts, possibly a pension), different tax situation, different time horizon. Often the right moment to add or revisit a revocable living trust
- Buying or selling a major asset — a home, a business, an investment property, especially in a state different from where you live. Out-of-state real estate is a classic reason to use a trust (avoids ancillary probate in the second state)
- Starting or selling a business — succession planning, buy-sell agreements, key-person insurance, and how your business interest passes at death all interact with the estate plan
- Significant change in net worth in either direction. A plan that made sense at $500K of assets may need rethinking at $5M (estate tax) or at $100K (probably simpler than what you have)
Geographic and Legal Events
- Moving to a different state. Estate law varies enormously. A will signed in one state is generally still valid in another, but the document may not be optimal for your new state (probate rules, witness requirements, community-property vs separate-property treatment, state estate or inheritance tax)
- Acquiring property in a different state — especially real estate. Without planning, your executor will face a second “ancillary” probate in that state, on top of the main probate where you lived
- Citizenship change. Non-U.S.-citizen spouses face different estate-tax rules (no unlimited marital deduction by default); foreign property or accounts add complexity
- Health change requiring nursing-home or long-term-care planning. Medicaid eligibility rules (especially the 5-year look-back on asset transfers) may require careful planning years before any actual need
A Review Checklist
When you sit down for a review, work through this list:
- Read your will end-to-end — do the beneficiaries, percentages, executor, guardian, and any specific gifts still reflect what you want?
- Pull beneficiary designations from every retirement account (401(k), IRA, 403(b), pension), life insurance policy, and any POD/TOD account. Confirm each one matches your intent
- Confirm the assets you assumed were jointly titled or in a trust actually are — especially after buying or refinancing real estate
- Check that your power of attorney is current and that your agent is still appropriate, willing, and capable
- Check that your advance directive still reflects your medical wishes, and that your healthcare agent is still appropriate
- Confirm your trust (if any) is properly funded — an unfunded trust accomplishes nothing
- Confirm your executor and guardians still want the role and know where the documents are
- Review your digital-asset plan — password manager emergency access, platform legacy tools, crypto recovery
How to Actually Update
- For small changes to a will — a codicil (formal amendment, executed with the same witnessing and notarization requirements as the original) works. But for anything beyond a one-line tweak, a brand-new will that revokes all prior ones is cleaner and avoids ambiguity
- For trust changes — a trust amendment for a revocable trust; restated trust documents for bigger changes. Irrevocable trusts are much harder to modify; talk to an attorney
- For beneficiary designations — log into the custodian (the brokerage, the insurance company, the 401(k) provider) and update the form online. No witnessing or notarization usually required. The form is what controls — not the will
- For powers of attorney and advance directives — sign a new one; physically destroy the old; redistribute the new version to your agent and your doctor
Keep a dated note in your file showing when the plan was last reviewed and what (if anything) you changed. Future-you, or whoever steps in, will appreciate the trail.
Educational only. Estate-planning laws — including which documents are valid, who can serve as executor or agent, witness and notary requirements, guardianship rules, and how assets pass — vary significantly by state. This article is not legal advice. Consult a licensed attorney in your state before drafting or relying on any estate document.