Guest Author
Updated 7:50 AM CDT, Mon September 14, 2026
Published Under: Consumer Products Educational
If you're just starting out on your journey of financial independence, everything feels great. You've got steady money coming in, you don't have a lot of bills yet, and it may actually feel like money grows on trees.
But this is exactly when it's most important to build smart money management habits, because no one wants to become the cliché young person who never quite learned to handle their finances.
So we've pulled together the most common money mistakes people make in their 20s and 30s, along with what you can do to avoid each one. Let's dig in.
The three biggest money mistakes in your 20s and 30s? Delaying an emergency fund, ignoring student loan payments, and putting off saving for retirement. Here's how to sidestep all three.
Some of the smartest money management strategies fall into the "prepare for the worst" bucket. You never know when something unexpected could happen. Whether it's a surprise car repair, a hospital stay, or a job loss, you need to be financially ready. A good rule of thumb is to keep enough in your savings account to cover at least three months of everyday expenses like rent, groceries, and bill payments.
That means saving intentionally with every paycheck. Try putting 10–20% of each one into a savings account rather than your checking account, so it's a little harder to spend on impulse. Browse PSB Bank's savings account options to see which one works best for you.
Related: Are You Still Doing This? 8 Habits to Break in 2026 (For a Healthier Wallet & Happier You)
This one's easy to do, especially with federal student loans, which typically offer a six-month grace period after graduation before payments begin. But once that grace period is up, your regularly scheduled payments start, and letting them slide is where things get risky. If you stop making payments for about 270 days (nine months), your federal loans go into default, which can lead to serious consequences, including:
Not sure where your accounts stand? Our team can help you set up the right mix of checking and savings so your payments and goals stay on track. Contact us online or visit your local PSB Bank branch to talk it through.
When you're young, retirement can feel like it's a lifetime away. So it's tempting to spend money now simply because you have it, rather than thinking about the future. But the reality is that the earlier you start saving for retirement, the harder your money works for you, thanks to compound growth over time. And getting started may be easier than you think.
Many employers offer retirement accounts as part of your benefits plan, letting you funnel a portion of your paycheck straight into savings. Even better, a lot of employers will match your contributions up to a certain percentage.
For example, an employer might match 50% of what you contribute up to 5% of your salary, or dollar-for-dollar up to 3%. As the IRS points out, skipping that match is essentially walking away from free money. So if it's available to you, take full advantage.
Related: Gen Z and Their Finances: What They're Getting Right (And What They Can Learn From Millennials and Gen X)
Here's a sneaky one, because it doesn't feel like a mistake at all. Lifestyle inflation is when your spending creeps up every time your income does. For example:
The fix isn't to never enjoy your money. It's to grow your savings alongside your lifestyle. One simple habit works wonders:
Whenever you get a raise, send a chunk of it straight to savings or retirement before you adjust your spending.
Bump your savings rate by even a few percentage points every time your paycheck grows, and future-you gets to enjoy the raise too.
If you're not sure where to start when it comes to building smart money management habits, we're here to help. Our team will help you find the right accounts and banking services to set you up for success, whether that's opening your first real savings account or building credit for the road ahead. Get started by contacting us online or visiting your local PSB Bank branch.
Open a Savings Account • Contact Us • Find a Location
A common rule of thumb is to save enough to cover at least three months of essential expenses like rent, groceries, and bills. If your income is variable or you're a household's main earner, aiming for six months gives you an even stronger cushion.
For federal loans, missing payments for about 270 days (nine months) puts your loans into default. That can drop your credit score significantly, lead to wage garnishment of up to 15% of your paycheck, and cost you access to options like deferment and income-driven repayment. If payments feel out of reach, apply for an income-driven repayment plan before it gets to that point.
As early as possible. The sooner you start, the more time compound growth has to work in your favor. If your employer offers a retirement plan with a matching contribution, that's the best place to begin, since the match is essentially free money.
Lifestyle inflation is when your spending rises every time your income does, leaving you with little extra to save. The easiest fix is to increase your savings rate whenever you get a raise, so a portion of every income bump goes toward your future before it gets absorbed into everyday spending.
A solid starting target is 10–20% of each paycheck. If that feels like a stretch right now, start smaller and increase it over time, especially when your income grows.
But this is exactly when it's most important to build smart money management habits, because no one wants to become the cliché young person who never quite learned to handle their finances.
So we've pulled together the most common money mistakes people make in their 20s and 30s, along with what you can do to avoid each one. Let's dig in.
The three biggest money mistakes in your 20s and 30s? Delaying an emergency fund, ignoring student loan payments, and putting off saving for retirement. Here's how to sidestep all three.
Delaying Creating an Emergency Fund
Some of the smartest money management strategies fall into the "prepare for the worst" bucket. You never know when something unexpected could happen. Whether it's a surprise car repair, a hospital stay, or a job loss, you need to be financially ready. A good rule of thumb is to keep enough in your savings account to cover at least three months of everyday expenses like rent, groceries, and bill payments.
That means saving intentionally with every paycheck. Try putting 10–20% of each one into a savings account rather than your checking account, so it's a little harder to spend on impulse. Browse PSB Bank's savings account options to see which one works best for you.
Related: Are You Still Doing This? 8 Habits to Break in 2026 (For a Healthier Wallet & Happier You)
IGNORING Student Loan Payments
This one's easy to do, especially with federal student loans, which typically offer a six-month grace period after graduation before payments begin. But once that grace period is up, your regularly scheduled payments start, and letting them slide is where things get risky. If you stop making payments for about 270 days (nine months), your federal loans go into default, which can lead to serious consequences, including:
- A credit score drop of potentially hundreds of points
- Wage garnishment, where the government can withhold up to 15% of your paycheck without a court order
- Losing access to helpful options like deferment, forbearance, and income-driven repayment
- Legal action
Not sure where your accounts stand? Our team can help you set up the right mix of checking and savings so your payments and goals stay on track. Contact us online or visit your local PSB Bank branch to talk it through.
Putting off Saving for Retirement
When you're young, retirement can feel like it's a lifetime away. So it's tempting to spend money now simply because you have it, rather than thinking about the future. But the reality is that the earlier you start saving for retirement, the harder your money works for you, thanks to compound growth over time. And getting started may be easier than you think.
Many employers offer retirement accounts as part of your benefits plan, letting you funnel a portion of your paycheck straight into savings. Even better, a lot of employers will match your contributions up to a certain percentage.
For example, an employer might match 50% of what you contribute up to 5% of your salary, or dollar-for-dollar up to 3%. As the IRS points out, skipping that match is essentially walking away from free money. So if it's available to you, take full advantage.
Related: Gen Z and Their Finances: What They're Getting Right (And What They Can Learn From Millennials and Gen X)
Falling Into Lifestyle Inflation
Here's a sneaky one, because it doesn't feel like a mistake at all. Lifestyle inflation is when your spending creeps up every time your income does. For example:
- You get a raise, so you upgrade the apartment.
- A new job means a nicer car.
- A little extra cushion turns into a bigger streaming bundle and a few more dinners out.
The fix isn't to never enjoy your money. It's to grow your savings alongside your lifestyle. One simple habit works wonders:
Whenever you get a raise, send a chunk of it straight to savings or retirement before you adjust your spending.
Bump your savings rate by even a few percentage points every time your paycheck grows, and future-you gets to enjoy the raise too.
Let's Set Future-You Up for Success
If you're not sure where to start when it comes to building smart money management habits, we're here to help. Our team will help you find the right accounts and banking services to set you up for success, whether that's opening your first real savings account or building credit for the road ahead. Get started by contacting us online or visiting your local PSB Bank branch.
Open a Savings Account • Contact Us • Find a Location
Frequently Asked Questions
How much should I have in an emergency fund?
A common rule of thumb is to save enough to cover at least three months of essential expenses like rent, groceries, and bills. If your income is variable or you're a household's main earner, aiming for six months gives you an even stronger cushion.
What happens if I stop paying my student loans?
For federal loans, missing payments for about 270 days (nine months) puts your loans into default. That can drop your credit score significantly, lead to wage garnishment of up to 15% of your paycheck, and cost you access to options like deferment and income-driven repayment. If payments feel out of reach, apply for an income-driven repayment plan before it gets to that point.
When should I start saving for retirement?
As early as possible. The sooner you start, the more time compound growth has to work in your favor. If your employer offers a retirement plan with a matching contribution, that's the best place to begin, since the match is essentially free money.
What is lifestyle inflation, and how do I avoid it?
Lifestyle inflation is when your spending rises every time your income does, leaving you with little extra to save. The easiest fix is to increase your savings rate whenever you get a raise, so a portion of every income bump goes toward your future before it gets absorbed into everyday spending.
How much of my paycheck should I save?
A solid starting target is 10–20% of each paycheck. If that feels like a stretch right now, start smaller and increase it over time, especially when your income grows.
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