Wealthy PotVTIAX vs VXUS: The Same Portfolio, at Nearly Double the Fee
VTIAX and VXUS give you the same thing: Vanguard's total international stock portfolio, everything outside the United States, in one holding. Same manager, same strategy, same underlying investments. The difference is the wrapper, and unlike most Vanguard mutual fund and ETF twins, this pair has a fee gap worth noticing: VTIAX charges 0.09%, VXUS charges 0.05%.
The Short Answer
- Starting fresh, or cost-sensitive? VXUS. It is the same portfolio for roughly half the annual fee, with no minimum beyond one share.
- Want automatic recurring investments in exact dollar amounts? VTIAX. Mutual funds handle "invest $400 every month" cleanly, and for many people that habit is worth more than the fee difference.
This is one of the few Vanguard twins where the cheaper wrapper is clearly cheaper. On most pairs, such as VTSAX and VTI, the gap is negligible. Here it is not.
VTIAX vs VXUS Side by Side
| Feature | VTIAX | VXUS |
|---|---|---|
| Full name | Vanguard Total International Stock Index Fund Admiral Shares | Vanguard Total International Stock ETF |
| Wrapper | Mutual fund | ETF |
| Expense ratio | 0.09% | 0.05% |
| Minimum | $3,000 | One share |
| How you buy | Exact dollar amounts, priced once a day | Whole or fractional shares, traded through the day |
| Portable to another broker | Transfers in kind; buying more may cost a fee | Transfers in kind |
The Fee Gap Is Real Here
0.09% against 0.05% is a difference of 0.04% a year, which sounds like nothing until you see that the mutual fund costs 80% more than the ETF for an identical portfolio.
- On $10,000: $9 a year against $5.
- On $100,000: $90 a year against $50.
- On $500,000: $450 a year against $250.
None of those are large sums on their own. Compounded across decades on a growing balance they add up to a real amount, and you are paying it for nothing at all, because the two funds hold the same investments. This is different from a fee difference that buys you broader coverage or a different strategy.
It is also worth calibrating. A difference of 0.04% is still trivial next to what an actively managed international fund might charge. Both of these are cheap. One is simply cheaper.
What the Extra 0.04% Buys You
Not exposure. It buys convenience, and for some investors that is a fair trade.
Exact dollar investing. You can tell Vanguard to put $400 into VTIAX every month and every cent goes in. With an ETF at some brokers you buy whole shares and are left with leftover cash, though fractional-share support has made this much less of an issue than it once was.
No intraday decisions. Mutual funds price once a day at the close. There is no bid-ask spread, no premium or discount to net asset value, and no temptation to watch the price during the day. For an investor who finds trading screens stressful, this genuinely helps.
Automatic contributions. Recurring purchase plans are more mature for mutual funds at most brokers than for ETFs.
Against that, the ETF is the more portable of the two. Both transfer in kind to another brokerage through the standard ACATS process, with no tax event, so neither traps you. The difference shows up afterwards: an ETF trades free almost everywhere, while brokers that are not Vanguard typically charge a transaction fee to buy more of a Vanguard mutual fund. You can move VTIAX; you may just not want to keep adding to it once it has moved.
Converting VTIAX to VXUS
If you already hold VTIAX and the fee gap now bothers you, there is a route that avoids selling. Vanguard has historically allowed a conversion from a mutual fund share class to the equivalent ETF, treated as a share-class change rather than a sale, so it does not realise capital gains.
Three cautions. It is generally a one-way trip: you cannot convert back. It applies to Vanguard funds that have an ETF share class, which this pair does. And the details and availability are Vanguard's to set, so confirm with them before acting rather than relying on an article.
If you hold VTIAX in an IRA, none of this matters. You can sell and rebuy freely with no tax consequence.
Which One Fits You
Pick VXUS if you are starting from scratch, if you want the lowest ongoing cost, or if you value being able to move your holdings between brokers without a taxable event. For most people opening a new international position today, this is the default.
Pick VTIAX if automatic exact-dollar contributions are what keep you investing consistently, or if you simply prefer the once-a-day simplicity of a mutual fund. Paying $40 more a year per $100,000 to maintain a habit that actually works is not a bad deal.
What you should not do is hold both. They are the same portfolio, so owning each one just splits the same exposure across two lines on your statement.
FAQ
Are VTIAX and VXUS the same fund?
They hold the same portfolio and are run the same way. VXUS is the ETF share class and VTIAX is the Admiral mutual fund share class.
Why does VTIAX cost more?
Mutual fund share classes carry higher administrative costs than ETF share classes, and Vanguard prices them accordingly. Here that works out to 0.09% against 0.05%.
Can I switch from VTIAX to VXUS without paying tax?
Vanguard has historically permitted a share-class conversion that is not treated as a sale. Confirm current availability and terms with Vanguard before relying on it. Inside an IRA you can switch freely regardless.
Do I still need a U.S. fund alongside these?
Yes. Both hold only non-U.S. stocks. They are designed to sit next to a U.S. holding such as VTI or VOO, not to replace one.
Is $3,000 required for VTIAX?
Yes, that is the Admiral share class minimum. VXUS has no minimum beyond the price of a single share, which is one reason it suits smaller balances.
This article is for general information and is not investment advice. Fund figures were taken from Vanguard's published fund pages on 2026-09-21 and can change; confirm current figures before you invest.