Taxes and Mutual Funds: The Cost Nobody Talks About
Common Sense on Mutual Funds | John C. Bogle | ISBN: 9780470597484
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Bogle adds a third dimension to investing in Chapter 13, and it’s the one that wrecked my taxable account returns before I understood it: taxes.
Most people think about return and risk. Bogle says cost matters just as much. In a taxable account, taxes are a cost. A big one. And the mutual fund industry treats them like a drunk uncle at Thanksgiving. Everyone pretends he isn’t there.
The industry’s black sheep
Fund managers are measured on pretax returns. The IRS takes its cut after that. Portfolio managers don’t lose sleep over your tax bill.
About 60% of equity fund assets were in taxable accounts when Bogle wrote this. Those investors got capital gains distributions every year whether they wanted them or not. During the bull market, funds carried an estimated $700 billion in unrealized gains. That’s a tax time bomb waiting to go off.
His 2009 update confirmed it. Since 1998, equity funds distributed nearly $1.5 trillion in realized capital gains. Even during years when funds earned little or nothing, the distributions kept coming. Bear markets in 2000-2002 and 2007-2009 didn’t stop the tax bills.
Tax deferral is an interest-free loan from the government
This is the concept that clicked for me. A deferred tax is like an interest-free loan from the Treasury. You owe it eventually, but not yet.
Defer $1 for 10 years? Present value is 47 cents. Defer for 25 years? 15 cents. That’s enormous.
But mutual funds realize gains constantly. High turnover (90% per year) means gains get distributed and taxed almost immediately. Only about 5% of fund holdings stay put long enough to get the full deferral benefit.
Alpha gets destroyed by taxes
The average fund already had negative alpha of -1.9% per year from costs. Add taxes and it nearly triples to -5.1%. That’s more than a quarter of the stock market’s return gone.
James Garland’s study compared a typical fund to a tax-managed index fund over 25 years (1971-1995). Starting with $1 million:
- Typical fund: $6.8 million after taxes and fees
- Tax-managed index fund: $11.3 million
The typical fund investor kept 40% of the theoretical market return. The tax-managed investor kept 67%. The government and fund manager ate the rest.
And Bogle says even those numbers were too kind to active funds. They assumed 1% expense ratios and ignored transaction costs. Real all-in costs were closer to 2%.
Index funds are the good solution
Over 15 years ending mid-1998:
- S&P 500 Index: 17.2% pretax, 15.7% after tax (91% flow-through)
- Average equity fund: 13.6% pretax, 10.8% after tax (79% flow-through)
- Vanguard 500 Index Fund: 16.9% pretax, 15.0% after tax. Rank jumped from 94th to 97th percentile after taxes.
Low turnover means fewer distributions. Index funds rarely sell winners. You defer gains until you sell your shares.
Tax-managed funds are the better solution (in theory)
Bogle describes Vanguard’s tax-managed funds launched in 1994. Growth stocks (lower dividends). Loss harvesting. Redemption penalties to keep hot money out. Rock-bottom costs. No capital gains distributed yet.
His prediction that these would become a major force? Missed badly. Only 26 tax-managed U.S. equity funds existed by 2009. Tax cuts in the early 2000s probably didn’t help. But the concept is sound.
He also pitched a “new idea” that’s actually 60 years old: a buy-and-hold fund owning 50 large growth stocks, never rebalancing, redeeming in kind (paying shareholders with actual stock instead of selling). Founders Mutual Fund did this from 1938 to 1983 with the same 36 stocks. Lexington Corporate Leaders still exists. Both beat typical funds on an after-tax basis.
Nobody launched Bogle’s version. Still hasn’t.
Where to put what: taxable vs. tax-deferred
Common sense says bonds in the IRA (tax-deferred income) and stocks in taxable accounts (defer capital gains). John Shoven’s research flipped that because typical stock funds distribute so many gains.
With a tax-inefficient stock fund, you’re better off holding stocks in the 401(k) and munis outside. With a tax-efficient index fund, the traditional allocation wins. The difference on a 50/50 portfolio over 30 years: $72,000 vs. $112,000.
That’s $40,000 just from fund selection and account placement.
My take
I learned this chapter the hard way. Bought an actively managed fund in a taxable brokerage account in December. Got a capital gains distribution in January for gains I never participated in. Paid taxes on someone else’s profits from years before I invested.
That’s the mutual fund tax trap. You’re buying into a portfolio with a built-in tax liability you can’t control.
For taxable accounts, the hierarchy is clear:
- Tax-managed or index funds with minimal turnover
- Low-turnover active funds (rare)
- Individual stocks you control
- High-turnover active funds (don’t)
Bogle’s proposed prospectus disclosure still doesn’t exist: “This fund is managed without regard to tax considerations and will likely distribute substantial taxable gains annually.” Every active fund should say that.
If you’re in a 401(k) or IRA, taxes don’t matter until withdrawal. Buy whatever’s cheapest. But in taxable accounts, taxes might be the difference between retiring comfortably and retiring with a surprise bill from the IRS.
The parallax view Bogle describes is real. Shift your angle slightly and you see a whole dimension of cost that most fund marketing ignores. Don’t be one of the people who ignores it.