Being “good with money” doesn’t mean you’re exempt from making a financial mistake. Most of us have paid a late fee, forgotten about a subscription, or looked at our bank account and wondered where exactly all that money went.
However, these 13 financial mistakes are ones you may be making without even knowing it, and learning how to avoid them can put you in an even better financial spot.
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1. Using a budget that doesn’t match your real life
One common financial mistake is neglecting to set or maintain a realistic budget. Think of a budget like a GPS — it guides you week to week to make sure you end up where you want to be at the end of the month. And in this case, “where you want to be” is typically one step closer towards achieving goals like purchasing a home, reducing debt, or even taking a much-desired trip.
However, a budget is only as good as the effort you put into it. If you created a budget last year but haven’t tracked your day-to-day income and expenses, it likely isn’t doing you any good.
The fix: Instead of forcing your spending into rigid percentages, build a budget around what you actually earn and spend. Look back at a few months of transactions and include the irregular stuff too: annual subscriptions, car repairs, vet bills, and yes, fun money. Don’t forget easily overlooked expenses, too (like annual car registration fees or holiday gifts).
2. Not building an emergency fund
Around 53% of Americans don’t have enough savings to cover a $1,000 emergency, according to Bankrate’s 2026 Annual Emergency Savings Report. And if you can’t cover an unexpected expense, you’re more likely to need to borrow from family or friends or charge a credit card to get by.
This is why an emergency fund is so important. An emergency fund keeps an inconvenient surprise from becoming expensive debt. Without one, a $900 car repair could end up on a credit card that takes months to pay off.
A common benchmark is to save three to six months of essential expenses, but you don’t need to wait until you have thousands saved to benefit. Your first $500 or $1,000 can still provide some breathing room.
The fix: Start with an achievable target and automate a small transfer every payday. Maybe your emergency fund starts by you contributing $50 or $100 a month. Every little bit counts. Once you hit your first small goal, work toward a larger financial safety net.
3. Leaving employer benefits on the table
For many workers, your salary is just one part of your total compensation. You may also have access to a retirement account, a health savings account (HSA), discounts on services or company stock, and other financial benefits. Not using these (when it makes sense) could mean missing part of your overall compensation.
For example, if your employer offers to match your retirement contributions up to 3% of your income and you don’t take advantage of it, it’s like turning down part of your pay.
The fix: Review your benefits at least once a year, especially during open enrollment. Start with benefits that include an employer contribution or match, then decide which others make sense for your finances.
4. Letting lifestyle creep absorb every raise
Lifestyle creep can look like this: You finally get that raise you’ve been dreaming of, and suddenly six months later, your checking account looks exactly the same.
Because, while you weren’t aware of it, your spending sneakily increased as your income did. Maybe you added more dinners out, a nicer apartment, or a few more subscriptions. Suddenly, your extra income is spoken for.
The fix: If you have a raise on the horizon, decide ahead of time how you’ll spend it. Do you want to use 30% of it to increase your quality of life and the other 70% to pay off debt and save more?
5. Carrying expensive debt without a payoff plan
Debt gets much harder to tackle when you’re only making minimum payments and hoping the balance eventually disappears.
U.S. credit card balances reached $1.26 trillion in the second quarter of 2026, according to the Federal Reserve Bank of New York. High interest rates can make those balances especially stubborn because more of each payment goes toward interest instead of your principal.
The fix: Pick a repayment strategy and give your debt a finish line. You might use the avalanche method to tackle your highest-interest balance first or explore ways to manage credit card debt, including consolidation.
If a debt has already gone to collections, don’t automatically pay whoever contacts you. The Consumer Financial Protection Bureau recommends reviewing the debt validation information first and disputing debts you don’t recognize.
6. Treating all debt as equally bad
“Debt is bad” sounds like sensible financial advice until you realize a 7% mortgage rate and a 400% payday loan are both technically debt.
In reality, not all debt is bad. What matters more is what you’re borrowing for, what it costs, and whether the payments fit comfortably into your budget.
|
Potentially useful debt |
Higher-risk debt |
|
|
Examples |
Mortgage, personal loan, affordable student loan, business loan |
Payday loan, high-interest credit card balance |
|
Purpose |
May help build an asset, education, or earning potential |
Often finances short-term spending or emergencies |
|
Cost |
Generally lower interest rates |
Often higher rates and fees |
|
Best approach |
Borrow only what you can reasonably repay |
Prioritize repayment and avoid repeatedly borrowing |
7. Stacking Buy Now, Pay Later payments
Four payments of $25 can feel a lot easier to justify than spending $100 today. The trouble starts when you do that five times. Enter: Buy Now, Pay Later (BNPL) plans.
BNPL plans make it easy to put off paying now for even small everyday purchases. About 63% of BNPL users hold multiple simultaneous BNPL loans. These monthly payments can quietly stack up in the background and make it feel impossible to stay financially afloat.
The fix: Before opening another BNPL plan, add up every installment payment you already owe. If you wouldn’t comfortably buy the item at full price today, splitting up the bill doesn’t necessarily make it more affordable. Try delaying until you can pay off in full.
8. Keeping too much cash in a low-yield account
Everyone needs to keep some money in savings, but what type of savings account you keep it in matters too.
Inflation was 3.4% year over year in July 2026, according to the Bureau of Labor Statistics. If money you won’t need immediately is sitting in an account earning little or no interest, its purchasing power can gradually shrink.
The fix: Check your savings account interest rate (often displayed as an APY or annual percentage yield). If it’s less than 2%, it’s time to shop around for a new account. Ally Bank High Yield Savings and Capital One Online Savings are two well-loved options. Ideally, you shouldn’t be paying any bank account fees, either.
9. Ignoring your credit until you need it
The worst time to discover a credit-report error is when you’re applying for a mortgage or car loan.
Your credit history can affect whether you qualify to borrow and what interest rate you’re offered. So even if you aren’t planning to apply for anything soon, it’s worth knowing what lenders will see.
The fix: Check your credit reports regularly for unfamiliar accounts, incorrect balances, or other errors. You can also learn what goes into a good credit score and focus on habits such as paying bills on time and keeping revolving balances manageable.
10. Taking financial advice from social media or AI at face value
TikTok, Reddit, YouTube, and AI can make complicated money topics easier to understand. They can also confidently give you advice that’s outdated, oversimplified, or completely wrong.
The stakes get especially high with decisions involving taxes, investing, insurance, or large amounts of debt. The advice might be perfectly reasonable for one person and terrible for another.
The fix: Use online advice as a starting point, but do not solely rely on it. Check claims against reputable primary sources and know when you can trust AI for financial advice — and when you can’t. For major decisions, it’s always wise to consult a qualified financial, tax, or legal professional.
11. Not shopping around for big purchases
When considering bigger expenses like car insurance, home loans, or appliances, many people settle for their initial choice. Yet, comparison shopping is key. Especially in times of high inflation, you need to save every penny you can — and getting the same coverage or item for a reduced price is an easy way to save.
The fix: With the advent of online comparison tools and apps, it’s easier than ever to shop around for everything from insurance and loans to electronics and travel deals. Even if you’re loyal to a particular brand or company, shop around.
12. Continuing to pay for subscriptions you don’t use
A 2026 CNET study found that the average person wastes $252 a year on unused subscriptions. This begs the question: Do you know all the services you’re paying for monthly?
The fix: Check your bank account or credit card statements to see which streaming services are getting charged to your accounts. Cancel the ones you don’t use. You can also try a subscription-cutting app to cancel them for you.
13. Skipping basic estate planning
At its simplest, basic estate planning is deciding what should happen to your money, property, accounts, and responsibilities if you die or become unable to manage them yourself.
Even if you’re single, have no debt, and only own a cat, it’s still worth putting a basic will together. After all, who will sort through your belongings? Where will your savings account balance go? Who will take Mr. Tubs?
Beyond creating a will, basic estate planning can also include naming beneficiaries on retirement and life insurance accounts, choosing guardians for minor children, or establishing financial and healthcare powers of attorney.
The fix: Start by creating a will and naming beneficiaries on your accounts, if you haven’t already. Then, figure out what other items you need for your financial situation, including a trust, powers of attorney, and more. Review your plan after major life changes such as marriage, divorce, having a child, or buying a home.
How to avoid the 13 most common financial mistakes
If you’ve made any of the money mistakes we’ve listed, don’t worry–you can turn it around by following these money management tips. No matter where you are in your financial journey, you can find help.
Staying on top of your finances takes time and effort, but the payoff is worth it (pun intended). By correcting financial mistakes you may have made, you’re setting yourself up for financial wellness in the future.
Prosper does not provide tax, financial or legal advice and this post is not intended to be tax, financial or legal advice. We recommend that you consult with your financial or tax advisor if you have any questions.
Written by Cassidy Horton
Cassidy Horton is a finance writer who’s passionate about helping people find financial freedom. With an MBA and a bachelor’s in public relations, her work has been published over a thousand times online by finance brands like Forbes Advisor, The Balance, PayPal, and more. Cassidy is also the founder of Money Hungry Freelancers, a platform that helps freelancers ditch their financial stress.
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