• Brennan and Erin Schlagbaum switched from index funds to ETFs in October 2024.
• Vanguard's new automatic ETF investing prompted the conversion.
• The ETFs they switched to have a slightly lower expense ratio and may be more tax-efficient.

Brennan and Erin Schlagbaum built a seven-figure net worth by investing primarily in three Vanguard index funds.

For years, more than 95% of their stock-market money was in the Vanguard Total Stock Market Index Fund (VTSAX), the Vanguard Total International Stock Index Fund (VTIAX), and the Vanguard Emerging Markets Stock Index Fund (VEMAX).

In October 2024, the millennial couple said they moved 100% of their index funds to ETFs within all of their accounts in response to Vanguard rolling out automatic ETF investing, allowing investors to schedule recurring investments. Previously, Vanguard investors could not make automatic investments into or out of ETFs.

ETFs and index funds are similar — in fact, most ETFs are index funds — and can offer long-term returns, diversification, and cost savings thanks to low expense ratios. One key difference is how they're traded: ETFs can be bought and sold throughout the trading day, while index funds can only be bought and sold once a day at the close of the trading day. ETFs also typically require a lower investment minimum. You can buy a Vanguard ETF for as little as $1, for example, whereas most Vanguard mutual funds have a $3,000 minimum.

It made sense for the Schlagbaums to switch to ETFs for two main reasons.

"The first is, the expense ratios on the actual funds themselves are slightly cheaper, so there's a savings there," Brennan told Business Insider, noting that it's a very small difference.

Secondly, ETFs may offer tax savings when compared to index funds. ETF investors are taxed only when they sell the investment, while investors who own mutual funds — and index funds qualify as mutual funds — are liable for paying some capital gains taxes when a fund sells assets and realizes a gain.

"Given the nature of an index fund, this doesn't really occur much," noted Schlagbaum. "However, it can, and I'd like to eliminate it entirely if I had the choice."

As for the actual conversion from index funds to ETFs, Schlagbaum's experience was "super easy," he said. "You can call Vanguard directly, and they can do it over the phone, or you can just go in the platform, and all you do is swap the funds for the same exact ETF. For example, our biggest holding — VTSAX — the equivalent ETF is VTI."

The equivalent of their VTIAX holding is VXUS, and the equivalent of their VEMAX holding is VWO.

Notably, the conversion did not trigger a taxable event, he added: "Typically, if you're in a taxable brokerage account and sold out VTSAX, you'd have to pay capital gains on that move. But because Vanguard rolled out fractional ETF shares as part of their roll-out, they basically shielded all taxes from any investors that make this move."

Just because he's putting his money into ETFs doesn't mean his strategy is shifting. Schlagbaum is still playing the long-term, buy-and-hold game — and he's not dismissing low-cost index-funds, by any means.

"If you stay in index funds, it's not going to make or break you long-term," he said. The way he sees it, the ETFs he converted to are very similar in terms of their holdings, just slightly more tax-efficient.

It's difficult to quantify how much the move could save him in the future.

He said the difference in the expense ratio is "super minor." VTSAX, for example, has an expense ratio of 0.04%, while its equivalent ETF, VTI, has one of 0.03%.

As for the capital gains aspect, "that's very dependent year-to-year based on the manager that's holding that fund and how they buy and sell and the transaction activity within that fund, so it's impossible to calculate that."

If he had to estimate, "Long term, I would say it's probably a six-figure move, which isn't that big over a 30- to 40-year period. But, it's like, why wouldn't you take it? It's low-hanging fruit in my opinion."

• Financial independence writer Andre Nader built a seven-figure net worth before age 40.
• The former Meta employee shares his top money-related books, including 'The Simple Path to Wealth.'
• Another one of his favorites, 'Die With Zero,' helped him become more comfortable spending his money.

At 37, Andre Nader has enough in savings that he doesn't expect to ever have to work a 9-to-5 again.

After 15 years working in tech — nine of which were at Meta — he was laid off in 2023. Rather than job search, he leaned into the Substack publication he started in 2021, FAANG FIRE, and started doing one-on-one coaching. FIRE stands for financial independence retire early.

He and his wife, who works as a designer for Uber, had been preparing to retire early and had already built a sizable, seven-figure nest egg. Between her tech income and their savings, they had enough to sustain their family of three in San Francisco. While Nader is technically retired in his 30s, he says he'll consider himself "semi-FIRE'd" until his wife walks away from her job.

The financial independence blogger and coach shared three books that changed his money mindset and helped him build wealth.

"The Simple Path to Wealth" by JL Collins

JL Collins' 2016 book is a popular choice within the FIRE community.

The author delivers on his promise of providing a simple path to wealth — his main advice is to buy stocks via Vanguard's Total Stock Market Index Fund — which Nader said he appreciated as a former tech employee: "Particularly in tech, a lot of our work involves being hyper-creative or being extremely analytical and doing very complicated things in our day-to-day. We think we need to take the same approach to our finances."

Collins rejects that belief and suggests the opposite, Nader said: "It doesn't have to be complicated. You can rely on the math that other people have done and then keep it boring."

Nader didn't always keep things simple: He said he lost a good chunk of money trading options in his early 20s. However, once he learned about low-cost index fund investing, he was sold on the effective and hands-off strategy. He's built wealth by investing primarily in Fidelity and Vanguard index funds, including VTI and VXUS.

"Die With Zero" by Bill Perkins

Nader says his spending philosophy shifted after reading Bill Perkins' unconventional financial guide.

While saving money always came naturally to Nader, which was a good quality for someone pursuing FIRE, his frugality sometimes prevented him from spending on things that would enrich his life.

Perkins' book was "a good counter for me," he said. "I'm naturally frugal and naturally live within spreadsheets. 'Die With Zero' forced me to think about experiences more in the same way that I think about my finances: Just like my finances can compound, life experiences can also compound."

Nader says that one of the frameworks detailed in the book particularly resonated with him: Think about your life in five-year buckets. Then, maximize the experiences that make the most sense during those timeframes.

For example, in the first five years of his daughter's life, "maybe those aren't the best years for going to Disney World," he said. "Maybe that's going to be when my daughter is five to 10."

At 37, he's also thinking about prioritizing more adventuresome activities while he can: "In my 55 to 60 bracket, I probably don't want to be downhill skiing because maybe my knees aren't going to be in a place they are while I'm in my 30s and early 40s. So having those experiences matched up with my life stages is helpful."

"Enough" by Jack Bogle

When Nader decided to pursue FIRE, one of the first steps he took was establishing his "enough number," a concept he read about in Vanguard founder Jack Bogle's book.

It's essentially the amount of money that would allow him to never have to earn another dollar.

"'Need' is the big thing," Nader said. "You can continue earning more, but you don't necessarily need it to hit your goals and to live the life that you want. For me, that was always a big motivating factor."

As of late 2024, his "enough" number is around $5.6 million, which he calculated by considering his family's annual spend in San Francisco and future costs like healthcare and his daughter's education.

Having experienced a layoff in 2023, he's hyper-aware that life happens, and his expenses and circumstances will continue to change. For that reason, "I'm constantly running my numbers and trying to calculate how much enough is."

• FIRE blogger Andre Nader and his wife have been working toward early retirement for years.
• When they were both working full-time in tech, they lived off of one income and saved the other.
• Nader broke down their household budget from March 2023 to February 2024.

When Andre Nader sat down to calculate his "enough number" — the amount of money that would allow him to never have to earn another dollar and give him the option to retire early — the first thing he did was analyze his spending.

From there, he could work backward and estimate how much he'd need to sustain his family of three's lifestyle in retirement.

Members of the FIRE (financial independence, retire early) community typically use the "4% rule," which suggests that you can safely withdraw 4% annually from your nest egg. For example, if you retire with $1 million, you should be able to withdraw $40,000 from your retirement funds each year without running out of money. To figure out your number using this rule, you simply multiply your annual spending by 25. Nader prefers to use a more conservative 3% safe withdrawal rate, which you can calculate by multiplying your annual number by 33.33.

He and his wife, who works as a designer for Uber, had been preparing to retire early together. They were on track to do so until Nader was affected by Meta's 2023 layoffs. The couple had enough between their savings and one tech income that Nader didn't have to find another job, but he says he'll consider himself "semi-FIRE'd" until his wife also walks away from her job.

They built a seven-figure net worth thanks to a variety of factors, including high incomes — "I won the income game by being in tech, by being a dual-income household," said Nader — but they've also been disciplined savers and investors.

Nader, who describes himself as "naturally frugal," said that he and his wife always kept their expenses low enough so that just one of their tech incomes could cover all of their household expenses. This allowed them to invest about half of their combined income in low-cost index funds.

Between March 20203 and February 2024, the family of three residing in San Francisco kept their annual expenses around $140,000.

Nader, who writes about financial independence on his Substack, FAANG FIRE, broke down his family's annual budget:

Housing: $60,000 a year ($5,000 a month). The biggest chunk of their budget (42%) goes toward rent. "Running the numbers for my personal situation, I have never been able to make home ownership pencil in within San Francisco," he wrote on his blog.

Shopping and personal: $21,473 a year ($1,789 a month).

Children: $18,136 a year ($1,511 a month). This spending category, which includes education, childcare, activities, and necessities like clothing, decreased significantly after Nader's daughter graduated from preschool and started at public school as a kindergartner.

He broke down the costs within this spending category between March 2023 and February 2024 in a separate chart.

Food: $16,284 a year ($1,357 a month).

Travel and vacations: $10,443 a year ($870 a month). Now that his daughter is getting older and travel is more manageable, Nader says he's intentionally trying to increase spending in this category.

Bills and utilities: $6,241 a year ($520 a month).

Health and wellness: $5,363 a year ($447 a month).

Transportation: $2,741 a year ($228 a month). Nader and his wife share one fully paid-off car. They also are on a pre-paid maintenance plan for the next four years.

Miscellaneous: $1,201 a year ($100 a month.)

Increasing his budget heading into 2025

After being laid off in 2023, Nader is hyper-aware that life happens, and his expenses and circumstances will continue to change.

His spending has already increased since he ran his numbers in early 2024. Most notably, his family moved so that they could be within walking distance of their daughter's school. The move bumped his rent from $5,000 a month to $8,000.

He's thinking about 2025 as an experimental year and is doing some "boundary testing" on their spending, particularly while his wife is still working.

"It's much easier to increase spend while someone in your house is working, so right now, we're like, 'Hey, what would it be like if we did live in a single-family home in San Francisco? Is that the life that we want?'" he said.

His spending philosophy has shifted after reading Bill Perkins' "Die With Zero," he added.

The book was "a good counter for me," he said. "I'm naturally frugal and naturally live within spreadsheets. 'Die With Zero' forced me to think about experiences more in the same way that I think about my finances: Just like my finances can compound, life experiences can also compound. That led me to prioritize travel to a higher degree."

Nader doesn't want to sacrifice a certain quality of life or experiences in his pursuit of FIRE. He recognizes that what he and his family value will shift over time, which is why he periodically revisits his spending and "enough number."

"What 'enough' is in 2022 ended up being different than what I thought 'enough' would be in 2024," he said. "I realized that I did want to spend more in certain places, so I explicitly forced myself to spend more on things like travel. I realized I was unnecessarily saving more than I needed to, and I wasn't spending in a way that was bringing me happiness."

• Natalie Fischer quit her corporate job to become a solopreneur creating financial content.
• She's generated over $150,000 from her business in 2024.
• Fischer shares 4 tips for transforming a side hustle into a career.

Being an investing influencer started as a hobby for Natalie Fischer during the pandemic. Now, it's her full-time job.

Like many people, Fischer started seriously getting into the stock market in 2020. The pandemic was a prime entry point: markets were volatile, rates were low, and she had built up a healthy level of savings.

She began sharing her investing journey on social media through Instagram stories and received an outpouring of feedback and questions from family and friends. Fischer couldn't keep up with the barrage of DMs and started a TikTok account, @investwithnat, to create videos answering common investing questions.

In 2023, Fischer took a leap of faith and quit her corporate job to focus full time on finance content creation as a solopreneur, or a one-person business. Now, Fischer creates videos about financial independence on social media platforms and partners with different brands to create user-generated content.

She's been quite successful: so far in 2024, Fischer's brought in over $150,000 in revenue, contracts viewed by Business Insider show. And that's in an increasingly cutthroat creator economy — according to Goldman Sachs, only around 4% of content creators globally generate over $100,000 a year.

If you want to transform your content creation side hustle into an actual career, Fischer has the following advice.

Take the transition slowly

Fischer's success didn't emerge overnight. She started creating TikToks in 2020 but didn't actually start money until a year and a half later, primarily through producing user-generated content for companies. From there, Fischer began getting more sponsorships. She did this while working her full-time job as a data analyst.

"The best way to transition is to actually just start that project on the side while you're working a full-time job and basically wait to see how it goes," Fischer told Business Insider in an interview.

It's helpful to collect data on how your content is performing and monitor progress. Fischer waited until she had a year and a half of revenue data from her side hustle before deciding to take the leap.

"If I just quit my job not knowing how much money I was going to make, that would just be so stressful," Fischer said.

Once Fischer realized the paychecks from her side hustle were at the same level as the paychecks from her corporate job, she felt confident enough to go all in.

Prepare your emergency fund(s)

It's standard budgeting practice to have an emergency fund that can cover three to six months of living expenses. As a solopreneur, Fischer made sure she had not one, but two, emergency funds: one for personal use and one for her business, with enough money to cover six months of expenses for each.

Having a backup plan gave Fischer more bandwidth to focus on growing her business. A business emergency fund also ensured that Fischer would be able to sustain her business even if it encountered financial challenges as she transitioned to becoming a full-time content creator.

If being a solopreneur didn't work out, Fischer's backup plan was to go back to the corporate world, and the emergency fund would help Fischer weather the financial transition.

"That gave me a lot of comfort knowing that if worse comes to worse, I can always get another job," Fischer said.

Monthly income fluctuates, so diversify your income streams

Part of the reason why Fischer wanted to prepare emergency funds was because, unlike receiving a steady biweekly check in the corporate world, her monthly income as a solopreneur fluctuates.

The unpredictability of her income can make financial planning more challenging. Fischer makes sure she has a variety of income streams so she's not overly reliant on a single source of revenue.

Fischer built her baseline income around user-generated content by signing contracts to create content for companies' social media pages, websites, or advertisements. These contracts are month-to-month and easy to project. On the other hand, the frequency of sponsorships are more variable and therefore harder to forecast.

Fischer is also looking to upskill and expand into interactive events. She recently completed her certification in financial education and hosted a money workshop at a conference. Thinking ahead about new business lines, Fischer has her eyes on being a speaker at universities and schools.

You can do both

Being a solopreneur and working a corporate role aren't diametrically opposed.

A year after quitting her 9-to-5, Fischer is now considering getting a part-time corporate role in addition to running her own business.

"I'd be interested in a part-time project management or marketing role to diversify and expand my potential," Fischer said.

Not only does a part-time role provide more predictable income streams, it also provides exposure to new work environments and skills. Fischer has found that as a full-time content creator, she has a lot more flexibility with her time than she did at a traditional office job. Fischer has seen fellow solopreneurs balance a content creation business, a corporate role, and even write a book at the same time.

Fischer's takeaway from the last year of running her own business is to not limit your options as a solopreneur — there are countless ways to build your brand and business.

"I found that I have a lot more time on my hands, and so I'm able to explore different avenues," Fischer said. "I can do it all."

Are you a successful solopreneur looking to share your story? Reach out to Christine Ji at [email protected]