Robo-Advisors: The Complete Guide

• I have cash and do not know what to buy. Start here.
• I want to know what one costs, properly. Start here.
• I have decided, now which one. Start here.
• I already own a portfolio and want it assessed. Start here.
• I want to choose my own holdings. Start here.
• I am already with one and unsure. Start here.

Four layers, and only the first is quoted when platforms are compared. This is the single most useful thing to understand before choosing, because the cheapest headline rate is routinely not the cheapest outcome.

Worked through in dollars across balances in robo-advisor fees explained.

Walnut is not a robo-advisor. It connects the brokerage account you already have, reads your holdings read-only by default, and leaves every decision with you, which is a different category rather than a better one. That means we have a position in this subject and you should read these pages knowing it.

What we have tried to do about that is rank honestly page by page rather than uniformly. Across this cluster Walnut's category sits first on the pages ranked purely by cost, because paying no percentage of assets is arithmetically cheapest, and last on the pages about retirees and hybrid tiers, because withdrawal sequencing and access to a human are precisely what it does not do. If a page here would be more useful to you with a robo-advisor at the top, it has one.

Every robo-advisor runs the same five steps. A questionnaire produces a single risk score. The score selects one of roughly five to fifteen pre-built model portfolios, which differ mainly in their stock-to-bond split. That allocation is filled with broad, low-cost index ETFs. As markets move the mix off target the platform rebalances, by threshold, by calendar, or by pointing new deposits at whatever is underweight. In a taxable account it may also harvest losses.

Nothing in that sequence forms a view about a company, a sector or the market. There is no forecast and, in most cases, nothing that would ordinarily be called AI despite the name the category carries. That is a design choice rather than an omission, and it is the single most useful thing to know here, because it tells you what the fee buys: execution and discipline, performed reliably for years, rather than insight.

It also explains why the platforms resemble each other more than the marketing suggests. Two robo-advisors at the same risk level are running similar allocations of similar funds on similar rules. What genuinely differs is cost, account-type coverage, tax features in a taxable account, and how much of your financial picture the platform can see. Full mechanism in how robo-advisors invest your money.

Ranking on the advertised fee. The headline rate is the one number platforms control and the least likely to describe what you pay. A zero advisory fee funded by a required cash allocation can cost more over a decade than a transparent quarter of a percent.

Weighting tax features for the wrong account. Tax-loss harvesting and direct indexing exist to manage taxable gains, and a retirement account has none. Half of what premium tiers are priced around is inert inside an IRA, which is why the account type belongs earlier in the decision than the platform does.

Ignoring what happens on the way in. Most platforms sell an appreciated portfolio you transfer in, to buy their own model allocation. In a taxable account that realises years of gains in one tax year on their timing, and it can outweigh several years of the fee that was being compared.