Summary: The Only Investment Guide You'll Ever Need

The GIST

The Only Investment Guide You'll Ever Need by Andrew Tobias is the classic anti-get-rich-quick book: a short, funny, plain-spoken guide to money that has been in print and regularly revised since 1978 and has sold more than a million copies. Tobias is a Harvard Business School graduate and prize-winning financial journalist whose work has appeared in Time, New York Magazine, Esquire and Money. The book grew out of his time at New York Magazine, where colleagues treated him as the resident money expert. He noticed that nearly all the advice he gave was simple and repetitive, such as spend less than you earn and stay out of debt, and decided to write it down in one small volume.

Its message has barely changed in more than four decades, which is exactly the point. Ordinary people become financially secure through dull, sensible habits, not clever investing. The title is half a joke, because Tobias believes the basics really are that simple: "The overall ideas are so simple that any child can easily grasp them. Spend less than you have. Save the difference. Watch it grow. How complex is that?" The Los Angeles Times said the book "actually lives up to its name," and The New York Times judged it "so full of tips and angles that only a booby or a billionaire could not benefit."

The Big Ideas

This Book Won't Make You Rich

Tobias opens by lowering your expectations, with a chapter titled "If I'm So Smart, How Come This Book Won't Make You Rich?" The reasoning is hard to argue with. No book can honestly promise riches, because anyone who truly had a sure-fire system would be busy using it, not selling it. Promises of spectacular returns are the mark of a scheme, and an air of expertise is very often just marketing.

What he offers instead is more modest and far more reliable: security, and steady growth over a lifetime. That goal shapes everything that follows. The aim is not to beat the market or retire next year. It is to stop worrying about money, and Tobias argues that this is within reach of almost anyone prepared to do a few unexciting things consistently. The humour starts before the first chapter does, with a dedication "to my broker — even if he has, from time to time, made me just that."

A Penny Saved Is Two Pennies Earned

This is the heart of the book, and the publisher boasts that this chapter alone should save a reader thousands of dollars. The title's logic is simple. Every dollar you earn is taxed before you can spend it; a dollar you avoid spending is yours whole. So cutting costs is roughly twice as powerful as earning more, and it comes before any talk of investing.

Tobias starts with debt. Paying off a credit card that charges 19 or 20 percent is, in his words, the "simplest, safest, most sensible" way to earn that same return. No investment anywhere offers a guaranteed 20 percent, yet anyone carrying a balance has one waiting for them.

Then come the tips, delivered with a comedian's timing. Buy a used car, because "That 'new-car smell' is the most expensive fragrance in the world." Notice what small habits really cost: "It's not a $5 Starbucks, it's a $2,000 mocha grande," since five coffees a week comes to about $1,300 a year, which is roughly what is left of a $2,000 paycheck after withholding. Buy in bulk. Compare prices online; the first edition recommended keeping a Sears catalog as a price guide, and later ones cheerfully admit that the catalog is long gone and point to eBay, Craigslist and Amazon instead. Remember that "sell-by" dates are not expiration dates, a point he illustrates with some very old frozen creamed spinach. Take every dollar of free money on offer, starting with an employer's matching contribution to a retirement plan. He even has advice for parents: give children a budget and let them keep what they don't spend, and "as a life lesson in delayed gratification, you might even offer, up front, to double whatever they have left over at the end."

The chapter that follows, wryly titled "You CAN Get By on $165,000 a Year," makes the same point from the other end. A high income is no protection if spending climbs along with it. People who earn a great deal go broke too, and living within your means matters at every level.

Trust No One

Once you have money saved, a great many people will want to help you with it. Tobias's advice is in the chapter title. Salespeople, commissioned advisers and insurance agents all have conflicts of interest: they are paid for what they sell you, not for how well you do. However pleasant they are, no one will ever care about your savings as much as you do.

His conclusion is that most people, by and large, should manage their own money, using straightforward no-load mutual funds instead of handing decisions to expensive advisers. That is not as daunting as it sounds, because the right course is so simple. It only requires learning a little, asking questions, and staying alert to how the person across the desk gets paid.

The Case for Cowardice

Tobias makes timidity a virtue. In this chapter he tours the low-risk homes for money, including savings and money-market accounts, certificates of deposit, Treasury securities and bonds, and explains how each works. He teaches the basic arithmetic of bonds along the way, including the rule every saver should know: "When interest rates go up, bond prices go down."

The theme is that there is no free lunch. Reaching for a little extra yield nearly always means taking on a risk that someone has taken care to hide. For money you cannot afford to lose, boring is beautiful.

Alongside cowardice comes cunning about taxes. Tobias wants the tax code working for you, not against you, and the main tool is the retirement account. From the very first edition, which had a chapter called "The Peoples Loophole," he has urged readers to use tax-sheltered savings to the full. One line readers remember from later editions: "You should probably open a Roth IRA and fund it to the maximum every year." Money that grows untaxed for decades grows much faster, and the government is, in effect, offering to help.

Meanwhile, Down at the Track

Only in the second part of the book does Tobias turn to the stock market, and he introduces it as a racetrack. Most players at the track lose to the house, and in the market the house is fees, commissions and taxes. He enjoys the fuzzy line between investing and gambling, quoting an old quip: "If you bet on a horse, that's gambling. If you bet you can make three spades, that's entertainment."

And yet he is no enemy of stocks. They are riskier than bonds in the short run, but over the long run they have historically paid more, and long-term money belongs in them. The trick is to take the market's return without paying the house. His recommendation is to put money into low-cost, broad-based index funds every month for the rest of your working life, whatever the market happens to be doing. This is dollar-cost averaging, and its beauty is that it asks for no skill at all, only consistency and patience. Do not let short-term swings knock you off a long-term plan. Readers often place him in the same camp as Jack Bogle and Warren Buffett, who recommend the simplest strategy for most people because it is the one that most reliably works.

Ignore Your Broker, and Everyone With a Tip

The remaining chapters are a guided tour of things not to do. Brokers make money from activity, not from your results, so use a cheap discount or online broker and trade seldom. The fact that you can get up-to-the-minute quotes and place an instant trade does not mean you should. For long-term money, buy and hold.

Hot tips are either worthless or illegal. Investment newsletters and paid advisory services that promise special insight mostly add fees and anxiety without improving results. As one reader summed up his view, investment professionals don't know much more than you do, and the ones who do are not available to you. On commodities his advice is blunt: never trade them. Tobias does explain the exotic material, including put options and covered calls, clearly enough that reviewers single those explanations out for praise, but he explains them largely so that you can see why to leave them alone.

The book closes with family planning in the financial sense, in a chapter titled "What to Do If You Inherit a Million Dollars; What to Do Otherwise." It covers how to invest a windfall, the differences between open-end funds, closed-end funds and ETFs, and estate matters such as wills and probate. Appendixes help you work out how much life insurance you need and how much Social Security to expect, and one, playfully titled "Earning 177% on Bordeaux," is about wine. The newest edition extends the same skepticism to cryptocurrency, NFTs and meme stocks.

Putting It to Work

• Spend less than you earn. Everything else depends on it, and no investment strategy can make up for its absence.
• Pay off high-interest debt first. Clearing a 20 percent credit card is a guaranteed 20 percent return.
• Cut costs before chasing returns. Buy used cars, buy in bulk, compare prices, and count what small daily habits cost over a year.
• Take the free money. Never leave an employer match unclaimed.
• Use tax-advantaged accounts. Fund retirement accounts such as a Roth IRA as fully as you can.
• Buy low-cost index funds every month and leave them alone. Ignore the market's mood.
• Be a coward with money you can't afford to lose. Extra yield means extra risk.
• Trust no one who profits from your trades. Skip the tips, the newsletters and the commodities.

A fair caution: some readers find the frugality tips trivial, older editions date quickly, and the book does not lay out a full plan for dividing a portfolio between kinds of assets, so those who want one may need a companion volume.

Who Should Read It

Beginners and middle-income savers who want one sensible, entertaining overview of budgeting, debt, taxes, retirement accounts and basic investing, and anyone who distrusts the financial industry and would like their suspicions confirmed by someone who knows it well. It also works as a reference to return to when a specific question comes up. If the thought of a finance book makes you yawn, this is the one written by a man whose chief rule for writing is not to be boring.

This has been a summary of The Only Investment Guide You'll Ever Need by Andrew Tobias, giving you the GIST so you can decide if you want the REST.