5 Scary Financial Mistakes to Avoid

Updated 10/22/2025 | Have you heard of these financial mistakes to avoid? It’s October, a time for haunted houses, spooky stories, and dressing up the kiddos in costumes. But if you’re looking for a real scare, there’s nothing more eerie than financial mistakes that could haunt your future. 

If you are a tech employee or other high-earning individual in Seattle, you’ve likely worked hard to build your career and wealth. Below, we explore five financial pitfalls to avoid to help ensure you don’t fall into any ghoulish traps that could hold you back.

Grab your flashlight and let’s navigate avoiding these terrifying financial mistakes together.

Scary Financial Mistake 1: Not Maxing Out Your 401(k)

Imagine this: You’re a few years into a role and check your retirement savings only to realize you never adjusted your contribution rate (you were auto-enrolled at 4%). You haven’t been contributing as much as you could have — the horror! Not maxing out your 401(k) is one of the most easily avoidable financial mistakes we see. 

For many tech employees in Seattle, especially with high salaries, the maximum contribution might be well within reach.  Not contributing the full amount leaves valuable employer matches and the power of compound interest on the table. (Check out our tips for maximizing all of your employee benefits — especially relevant during open enrollment!)

Because a 401(k) lets you save more each year than any other retirement account and offers a hefty tax break, many experts recommend contributing to the IRS maximum if you can afford to. Every year you don’t max out your contributions, you lose out on the compounding growth that could significantly increase your retirement savings over time. 

Forgoing maxing out your 401(k) is like skipping the one house on Halloween that gives out the full-size candy bars — you’ll regret it later!

Terrifying Thought 2: You Keep Too Much Money in Your Checking Account 

What’s lurking in your checking account? Surprisingly, too much cash is the real fright. While it’s essential to keep enough money for everyday expenses and a small cushion for emergencies, holding too much in your checking account is a surefire way to let inflation slowly drain its value.

Rather than letting your money collect dust (and lose purchasing power), consider transferring excess funds to a high-yield savings account (HYSA) where you can earn a much better return. The rule of thumb is to keep 1–2 months of living expenses in your checking account, and the rest can be parked in places that let your money work for you — such as HYSA and investments.

To avoid the fright, regularly check your checking account balance. If you have more than a few months of savings in there, consider transferring the excess to an HYSA, investing in short-term bonds, or exploring direct indexing. Confused about the best move? Speak with your financial advisor.

Ghoulish Financial Mistake 3: Not Understanding Your Benefits

Remember our teaser earlier in this post? Employee benefits can be a gold mine for tech employees, but failing to take full advantage of them is like being haunted by a ghost — something valuable is there, but you’re not using it.

From health insurance to retirement plans to wellness programs, this is a critical financial mistake to avoid. Understanding your benefits and how to optimize them for your family is essential.

Are you using a health savings account (HSA)? HSAs allow you to set aside pre-tax money for medical expenses, and any unused funds roll over year after year, making them a fantastic long-term savings tool for healthcare costs in retirement. Do you have your family on the right health insurance plan? Many Seattle tech companies offer a variety of plans, and selecting the wrong one could leave you paying too much for coverage you don’t need — or not enough for adequate protection.

Remember to review your benefits package each year during open enrollment (which is right now!) and ensure you’re optimizing your health plan, HSA, retirement benefits, and even pet insurance if offered. Also, don’t forget to double-check your dependents and beneficiaries. As always, speak with your financial advisor to avoid making mistakes with your benefits.

Spooky Financial Blunder 4: Neglecting to Diversify Your Investments 

Here’s a terrifying scenario: You’ve invested heavily in the tech sector (after all, it’s what you know!), but then the stock market takes a dive. Suddenly, your portfolio looks like a haunted house — falling apart before your eyes. While tech stocks may feel like a sure thing, relying too much on one sector — or even one type of asset — can be dangerous.

Market downturns are a reality of life, and diversification is your best defense. By spreading your investments across different sectors, asset types, and more, you reduce the risk of major financial loss if one part of the market crashes.

Work with your financial advisor to build a diversified portfolio that includes a mix of stocks, bonds, real estate, and even alternative investments. They can also help you understand what to do when considering selling company stocks). These conversations can help you avoid financial mistakes and protect your wealth from the spooky ups and downs of the market.

Eerie Financial Mistake 5: Not Using a Financial Advisor

Whether you’ve seen the signs that you need a financial plan or advisor or find the idea of managing your finances on your own terrifying, the biggest financial mistake to avoid is not using a professional.

There’s no question you could do it on your own, but think of the time you will spend or the knowledge you’ll miss out on because you don’t spend every day doing this stuff. Without an advisor, getting lost, missing opportunities, or even making costly mistakes is easy. A financial advisor can help you see the big picture and stay informed about the latest tax-saving strategies. Not to mention, they can help you create a plan that helps maximize your financial growth.

For busy Seattle tech employees, time is basically money. Why spend your precious time digging into the intricacies of tax planning or trying to optimize your investments when a financial advisor can do it for you? Not only does a professional help you avoid scary mistakes, but they also free up your time to focus on what you do best — whether that’s working on the next big tech innovation or enjoying life with your family.

Avoid Making Scary Financial Mistakes With Norther Lights Advisors

Don’t let your finances turn into a real-life horror story this Halloween season. By maxing out your 401(k), keeping your cash in the right accounts, understanding your benefits, diversifying your portfolio, and working with a financial advisor, you’ll ensure your financial future stays spooky-free.

At Northern Lights Advisors, we’re here to help Seattle’s tech professionals navigate the twists and turns of financial planning all year round. Ready to slay those financial monsters and avoid making financial mistakes? Contact us today to schedule a consultation.

Northern Lights Advisors is a fiduciary, fee-only Registered Investment Advisor (RIA) firm based in Seattle, Washington. The information in this article is not intended as tax, accounting, or legal advice. Read the full disclosure here.