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# You're Already Running a Solo Family Office
- URL: https://www.capitalfounders.io/already-running-solo-family-office/
- Published: 2026-08-25T08:00:27.000Z
- Updated: 2026-08-25T09:24:16.000Z
- Description: Most founders with $5M–$100M already run their money themselves, with professionals on call and no staff on payroll. That arrangement has never had a name. This week it gets one, and a standard to run to.
- Author: Taras
- Tags: Wealth Architect, Capital Signals

A lot of the founders I meet with $5M–$100M run their money themselves. They have an accountant, a lawyer they trust, maybe an investment manager, and every decision still lands on their desk. That arrangement has no name.

UBS counts about 7 million people worldwide holding $5M–$100M, and few of them will ever put an investment team on payroll. Many treat this setup as a stopgap until they can afford the real thing. This week it gets a name: the solo family office, because I think it's a model in its own right.

## This Week in 30 Seconds

- **A name for what you already do.** Founders with $5M–$100M who make their own decisions are running solo family offices already: one accountable owner, professionals on call, no payroll. The real question is how well you run it.
- **Five jobs measure that standard.** A written purpose, one view of everything, a decision rule, a review calendar, one owner. Staffed offices miss these too: 48% have no written policy, per Citi.
- **On the Radar.** Custody went 24/7 in a single month, Morningstar flags more private credit stress, and Monterey's record year is a prompt to put passion assets on the consolidated view.

## Business got there first

One person can run a serious business now. Solopreneurs proved it: a software or service business making $1m–$10m a year at 80–90% margins, contractors instead of employees, held at a size that pays for the life you want. Sam Altman went further and predicted a one-person billion-dollar company: AI agents working around the clock, specialists on a fractional basis, one person making every call. Nobody knows if that company shows up in 2 years or in 10, but the trend is clear: every year, the same work needs fewer people. Many founders have watched it happen inside their own companies. I've seen it in mine.

Wealth management hasn't caught up. The family office, the structure wealthy families use to run their affairs, was built around employees, and employees are what made it expensive: J.P. Morgan's 2026 family office report puts the average running cost at about $0.9m a year, even for offices under $250m. That's why the usual advice is not to build one under $100m, and these numbers are hard to argue with. The more interesting question is what's left of the model when you remove payroll.

## What solo family office means

A solo family office is a family office run by one person: the founder who owns the capital. Solo doesn't mean alone, and it doesn't mean DIY; it means one person is accountable. You still work with top professionals: a tax adviser, a lawyer, an investment manager if the portfolio needs one. You bring them in when there's work to do and pay them well. Software handles the reporting, and AI agents are starting to take on the rest of the back office.

The obvious question: what if something happens to you? It's a fair question, and it needs a real answer, not a line. Thursday's article covers it in full, with the industry's own numbers on succession planning.

## Five jobs to check yours against

If you hold $5M–$100M and you make the decisions about your money yourself, you already run a solo family office. You were running it before it had a name. The name just lets you ask a useful question: how well is it run?

Every family office, staffed or solo, does the same five jobs:

- A written purpose: one page on what the money is for and what it must never be risked on.
- One view of everything you own, kept current.
- A decision rule, so you can say no to deals and pitches quickly.
- A review calendar, so reviews happen on schedule and not when something breaks.
- One accountable owner. Here, that's you.

I covered these in [the five-jobs piece](https://www.capitalfounders.io/minimum-viable-family-office-setup/), and they apply at any size.

I see a lot of these setups in the wealth industry, and usually two or three of the jobs are done well while the rest sits in the founder's head: the consolidated view is a spreadsheet from the spring, and the purpose page doesn't exist. To be fair, staffed offices are no better. Citi surveyed 338 family offices in 2024, the kind with employees, and 48% had never written down what the money is for.

So the practical step this week: go through the five jobs and mark each one done, half-done, or not started. It takes 10 minutes, and the gaps become your work plan for next quarter.

## Where this is going

To be clear about timing: the management side of a solo family office works today. One owner, top professionals on call, the five jobs. None of that needs new technology. The AI side, agents that consolidate reporting, track capital calls, and keep the records clean, is developing fast, but it isn't finished, and nobody has good data yet on how much of the work it takes over, me included.

My view: what one person can run keeps growing, and for one group of founders it's already going that way. If you built your company with a small team, contractors and AI agents, making every call yourself, you're not going to hand your money to an office that runs slower than the business you just sold. Most tech and AI-native founders will end up running their money the way they ran the company.

Staffed offices still make sense above $100m, where a family has several branches, operating businesses and property in different countries. Below that line, I think solo becomes the normal way to do this, and as the tools improve I expect to see solo offices running sums that sound unrealistic today.

## Why the name is solo

A couple of names already exist. Micro family office is pitched at $1m–$30m, and nobody introduces themselves as running something micro. Lean family office is already in use, and lean sounds like a lean startup, the stage when there's no money, and you do everything yourself. Neither fits founders at this level.

Solo does. It says who runs the office: one person, and nothing about size, so it works at $5m and at $100m. Founders already use the word well: solo founder, solo GP.

What we have yet to see is whether it catches on. This edition is the first time solo family office appears outside my own notes. If you run your money this way and the name fits, use it. 

I'd also welcome the feedback. Does it feel and sound right? [Let me know](https://www.capitalfounders.io/contact/). 

## On the Radar

### **Hedging an AI bubble when the index fund is already the bet.**

Cape May Wealth Weekly ran a guest piece by David Höhl on 18 August working through practical options for cutting AI exposure without selling the whole equity sleeve. Worth reading because most founders at this level keep their safe money in cap-weighted index funds, which now carry the AI trade at a weight nobody chose deliberately. Before deciding whether anything needs doing, it's worth putting a number on how much of your index exposure is that one trade. [Read more →](https://capemaywealth.beehiiv.com/p/the-best-ways-to-protect-your-portfolio-against-an-ai-bubble-burst?ref=capitalfounders.io)

### **Monterey set a record, and passion assets are no longer a footnote.**

Monterey Car Week's auctions took $756m this year, per CNBC's Robert Frank: up 75% from last year and past the 2022 peak, with top prices for collectable Ferraris more than double what they were two years ago. Cars, watches and art rarely make it onto a founder's consolidated view, which is how a seven-figure position ends up unmeasured and riding the same cycle as everything else. A record year is also when people add to these positions rather than trim them. [Read more →](https://www.cnbc.com/video/2026/08/17/monterey-car-week-sales-top-750-million.html?ref=capitalfounders.io)

### **Custody quietly moved to 24/7 this month.**

Three of the largest custodians moved in the same month: Citi launched Custody+, a near- and real-time custody service built for continuous markets; Standard Chartered and HSBC completed the first tokenised-deposit transaction on Swift's blockchain ledger; and Standard Chartered issued $200m of digitally native notes through Euroclear. Settlement is plumbing nobody thinks about until a transfer sits in limbo over a weekend. A fair prompt to ask your custodian what its actual settlement window is, and what it holds in-house versus through a sub-custodian. [Read more →](https://www.citigroup.com/global/news/press-release/2026/citi-custody-plus-suite-near-real-time-custody-solutions?ref=capitalfounders.io)

### **When advisers stop thinking for themselves.**

Professional Wealth Management, the FT's private-banking title, ran a short piece on 20 August about advisers leaning on AI output without keeping their own judgement in the loop. The question runs both ways. Worth asking an adviser where AI sits in their process and what they verify before it reaches you, and worth asking the same of your own workflow if you run research through a model. [Read more →](https://www.pwmnet.com/content/2e3e7b08-6342-45e3-946f-41d9e0dd1557?ref=capitalfounders.io)

### **Private credit is showing more signs of distress.**

Morningstar's weekly round-up flagged fresh stress signals in private credit, alongside bond markets under pressure. Private credit absorbed a lot of the safe-income money founders put to work over the last three years, often through semi-liquid funds with quarterly gates. Worth reading your redemption terms now, while the question is still theoretical. [Read more →](https://www.morningstar.com/markets/private-credit-is-showing-more-signs-distress?ref=capitalfounders.io)

## New on the Site

On Thursday, we will publish the reference piece behind this memo. It has the full definition of the solo family office, a comparison with single, multi, virtual and fractional offices, and the numbers on what the staffed version costs.

From Thursday (link to be updated): ***Solo Family Office: Running $5M–$100M Without the Institution***

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****Disclaimer:** This content is for informational and educational purposes only. It is not investment, legal, or tax advice and should not be relied upon as such. The views expressed are the author's own and do not represent any employer, firm, or institution. All investing carries risk, including loss of principal. Past performance does not guarantee future results. Nothing here is an offer or recommendation to buy, sell, or hold any security. Your circumstances are unique — consult qualified professionals before making financial, legal, or tax decisions. By reading, you accept these terms.