I Asked a Financial Advisor for the Biggest Wealth-Building Mistakes People Make — They Shared 5

The biggest mistake people make when trying to build wealth is not a poor stock choice or a bad market call.

Rob Hayworth, partner and private wealth advisor at Northwestern Mutual’s Summit Financial Group, says the real problem is that many people wait too long to begin. He broke down that habit, along with four other common missteps.

1. Holding Out for the Perfect Moment

“One of the biggest wealth-building mistakes I see is waiting for the ‘right’ time to start,” Hayworth said.

That delay often sounds practical: finish paying off student loans, get a promotion, or wait until the economy feels steadier. But postponing the start carries a cost that many people underestimate.

Northwestern Mutual’s Planning and Progress Study found that the average American does not expect to reach financial independence until age 37, reflecting how many people feel behind or prefer to wait for better conditions before acting.

“[In reality,] building wealth is often driven more by time and consistency than by perfect timing,” Hayworth said.

2. Believing Wealth Building Must Wait for Ideal Finances

Hayworth often hears people say they need to wait until student debt is gone, they earn more money, or they land a higher salary before they can invest seriously. Those milestones can help, but putting off long-term investing entirely means losing years of potential compounding.

“Even modest, consistent contributions can have a meaningful impact over time through the power of compounding,” he said.

3. Trying to Predict the Market

Volatility makes investors hesitant. When prices fall, many hold back and wait for conditions to improve. When things recover, they worry they may be buying at the top. That back-and-forth often leads to doing nothing at all.

“The challenge is that no one can consistently predict market movements,” Hayworth explained, “and some of the strongest periods of growth have historically followed market downturns.”

He said sticking to a long-term plan usually works better than chasing the ideal moment to enter the market.

4. Allowing Lifestyle Creep to Overtake Saving

As income rises, spending often rises too. Hayworth said his concern is not with improving one’s lifestyle, but with spending increasing so much that saving no longer keeps pace.

“The key is making sure your savings grow alongside your lifestyle,” he said.

Setting aside part of every raise for retirement or other long-term investments can speed up wealth-building without requiring major changes to daily life. Growing both spending and savings at the same time, he said, is what separates building wealth from simply making more money.

5. Failing to Set a Financial Plan

Hayworth said the most overlooked wealth-building tool is not a single investment opportunity. “It’s a financial plan,” he said.

People who know where they are headed tend to make better decisions when uncertainty hits and can manage competing goals — such as buying a home, starting a family, and preparing for retirement — without losing focus on the bigger picture.

In his view, there is rarely a perfect time to begin.

“The individuals who make the most progress are often those who start with what they have, contribute consistently and remain focused on their long-term goals,” he said. “Building wealth isn’t about making one perfect financial decision — it’s about making many intentional ones over time.”