1. Having no plan at all
If you die without a plan, your state decides who gets your assets and who raises your children, using default rules that may not match what you wanted. Everything runs through probate, the public court process, which costs money and takes months or longer.
The fixPut a basic plan in place. Even a will and powers of attorney put you back in control. Not sure where to start? Get started with us.
2. Relying only on a will
A will does not avoid probate. It is your instructions to a probate court, which means a public process, delay, and cost before your family receives anything. For many families, a will alone is not enough.
The fixConsider a revocable living trust to keep assets private, avoid probate, and control how and when your heirs receive money.
3. Outdated beneficiary designations
Retirement accounts, life insurance, and many bank accounts pass by beneficiary designation, not by your will. These designations override your will. An old form naming an ex-spouse, a deceased relative, or no one at all is one of the most common and expensive mistakes there is.
The fixReview every beneficiary designation and make sure each one matches your current wishes and the rest of your plan.
4. Never updating the plan
Life changes, and a plan that fits you at 30 may be wrong at 40. Marriage, divorce, a new child, a new business, a move to another state, or a big change in assets can all break an old plan.
The fixReview your plan after any major life event, and otherwise every few years. A short review is far cheaper than a court fight.
5. No plan for incapacity
Estate planning is not only about death. If you are alive but unable to make decisions, your family may have to go to court for guardianship or conservatorship to manage your money and medical care. That process is slow, public, and expensive.
The fixPut a financial power of attorney and a healthcare power of attorney and advance directive in place. These are low cost and high value.
6. Do-it-yourself documents that do not hold up
Generic online forms often fail because they are not signed, witnessed, or notarized the way your state requires, or because they do not fit your actual situation. A document that is invalid when it is needed can cost far more than it saved.
The fixHave your documents prepared and executed correctly for your state. See how much estate planning costs in 2026 before you assume professional help is out of reach.
7. Creating a trust but never funding it
This one is quietly one of the most damaging. A trust only controls the assets that are actually transferred into it. People pay to set up a trust, then never retitle their home, accounts, or business into it, so the trust is empty and the assets still go through probate.
The fixFund the trust. Make sure your home, accounts, and other assets are properly titled to it, and keep that current as you acquire new assets.
8. Forgetting digital assets
Crypto, monetized channels, domains, and valuable accounts are often left out entirely. Without planning, self-custody crypto can be lost forever and online income can disappear.
The fixInventory your digital assets and give your executor clear authority over them. See what happens to your digital assets when you die.
9. Leaving money to young heirs outright
Leaving a large sum directly to a young or inexperienced heir, with no structure, can do real harm. Without a trust, an heir may receive everything at 18 with no guardrails.
The fixUse a trust to control timing and conditions, so money is managed and released in a way that protects the people you love.
10. No business succession plan
If you own a business, leaving out succession is a major gap. Without a plan, your equity can pass through probate, your company can stall, and your co-founders or family can be left in conflict.
The fixBuild a business succession plan that lines up with your operating and buy-sell agreements, so ownership and control transfer the way you intend.
11. Naming the wrong executor or trustee
Choosing someone who is unwilling, unable, or in conflict with your heirs can turn administration into a dispute. Naming no one leaves the choice to a court.
The fixChoose people who are trustworthy and capable, name backups, and make sure they know they were chosen.
12. Assuming estate planning is only about taxes
Many people skip planning because they assume they are not wealthy enough to owe estate tax. For 2026, the federal exemption is $15 million per person, so most families will not owe it. But the real costs of no plan are probate, delay, lost assets, family conflict, and the inability to make decisions in a crisis.
The fixPlan for control and protection, not just taxes. Those are the costs that hit ordinary families hardest.
Key takeaways
- The most expensive mistakes are the most common: no plan, outdated forms, unfunded trusts, and no incapacity plan.
- Beneficiary designations override your will, so keep them current.
- A trust only works if you fund it.
- Digital assets and business interests are routinely left out and routinely lost.
- Estate tax is not the main risk for most families. Probate, delay, and lost control are.
Frequently asked questions
Having no plan at all, followed closely by outdated beneficiary designations and trusts that were never funded.