Step-Up in Basis: The Planning Move That Usually Follows an Umbrella Policy

If we placed an umbrella policy for you in the last couple of years, the conversation that got us there probably sounded like this: your net worth had quietly outgrown your liability limits, and nobody had told you. We sized the coverage to the balance sheet you actually have rather than the one you had when the policy was written.

Here is the part that conversation does not cover. The same growth that made your old umbrella too small also built a second exposure, and it is not a lawsuit. It is the capital gains tax sitting inside the assets you just insured.

The number most people have never calculated

Take the two assets most likely to have driven your umbrella review: a long-held home and a concentrated position in company stock.

Say the house was bought for $600,000 and is worth $2.1 million. Say the stock came from years of vesting with an average cost basis of $300,000 and is now worth $1.8 million. On paper you have $3.9 million in assets. What you actually have is roughly $3 million in assets and about $900,000 of unrealized gain that has never been taxed.

The moment you sell either one, that gain becomes real. Federal long-term capital gains rates, the net investment income tax, and in Washington the 7 percent capital gains excise tax on gains above the annual threshold all land in the same year. Washington exempts real estate from that excise tax, so the house and the stock are treated very differently, which is exactly the kind of detail that decides whether a sale is a good idea this year or next.

Your umbrella policy is indifferent to all of this. It exists for the day someone sues you. It has nothing to say about the day you sell.

Why the "step-up" matters so much

Under current federal law, when someone dies, the assets in their estate get a step-up in basis. The cost basis resets to the fair market value on the date of death, and the unrealized gain that built up over a lifetime simply disappears for income tax purposes.

That is why the timing of a sale matters more than almost any other decision in this area:

• Sell during your lifetime and you pay tax on the full appreciation.
• Hold until death and your heirs inherit at the stepped-up value, then can sell with little or no capital gains tax.

The obvious problem is that "hold until death" is not a financial plan. People need liquidity. They want to diversify out of a single stock. They want to sell the rental. The traditional answer has been to accept the tax bill as the cost of getting access to your own money.

Where an upstream trust comes in

There is a less familiar approach that works from the other direction. Rather than waiting for a step-up in your own estate, an upstream trust attaches an appreciated asset to the estate of an older relative, typically a parent, who has unused federal estate tax exemption. When that relative passes, the asset receives the step-up through their estate, and the gain that would have been taxed on a sale goes away.

The strategy is sometimes called an upstream basis trust, and it rests on a specific provision: a properly granted general power of appointment pulls the asset into the older relative's taxable estate, which is what triggers the basis adjustment. Most families have unused exemption sitting idle in exactly the generation that could absorb it.

The mechanics are genuinely technical, and the details are documented at upstreamtrusts.com, including a short eligibility questionnaire that will tell you in a few minutes whether your situation is even a candidate.

Who this is not for

We would rather disqualify you early than waste your time:

• If your assets have little appreciation, there is no gain to step up and nothing to solve.
• If you have no older relative with unused exemption and a willingness to participate, the structure does not work.
• If you need to sell in the next few months, this is not a fast maneuver. It requires drafting, funding, and time.
• If your total estate is likely to exceed the federal exemption on its own, adding assets to an older relative's estate may create an estate tax problem while solving an income tax one.

That last point is the one that gets missed. This is a trade between two different taxes, and it only makes sense when the math runs in your favor.

Why your insurance broker is the one raising it

Because it is the same audit. When we review a household, we are looking for the distance between what you have built and what your current arrangements actually account for. An umbrella limit set five years ago and a cost basis from fifteen years ago are the same kind of problem: a number that stopped tracking reality while your life kept moving.

We are insurance brokers, not attorneys or tax advisors, and nothing here is tax or legal advice. What we can do is tell you when something is worth a conversation with someone who is.

Start with the exposure we can measure. The coverage gap calculator shows the distance between your current liability limits and your current net worth in about thirty seconds. If you want us to look at the whole picture, ask for a free coverage review.

More on protecting a growing balance sheet: Your net worth grew faster than your liability coverage · High net worth on paper, because of company stock · Asset protection when most of your wealth is stock compensation