Should I Keep Renting or Buy a House in the Chicago Suburbs?

I have a saying that goes, "Plan for the 90% but be ready for the 10%." It comes from my near decades in the fire service. What that means is you train hard, keep everything in working condition, and prepare for what you know is coming. But the 10%, the calls that are unlike anything you've trained for, that's what separates people who were truly ready from people who just thought they were.

Buying a home is the same kind of decision. Most people plan for the mortgage payment. Almost nobody plans for the 10%.

And as someone who's worked in emergency services and watched families in some of their worst moments, I can tell you the ones who had a plan, financially, navigated those moments differently than the ones who didn't.

So when people ask me whether they should keep renting or buy in the Chicago suburbs, I don't give them a quick answer. I ask them about their plan. Because renting without one and buying without one both create the same problem... you're reacting instead of deciding.

The Myth That's Clouding This Decision

Here's the line most people have heard: "Renting is just paying someone else's mortgage. You might as well own."

And honestly? There's some truth in it. But it's not the whole picture, and for a lot of people, it leads them to the wrong decision at the wrong time.

I bought my first home when I probably wasn't fully ready. I figured it out, but I also lived through the stress of figuring it out. The monthly bills, the maintenance costs I didn't anticipate, the realization that you're now the one who handles everything. That experience taught me more about financial readiness than any class or certification.

Buying before you're prepared doesn't make you ahead. It just makes the situation more dangerous. And no one is going to tell you that when they're excited to sell you a house.

Plan for the 90% but be ready for the 10%. Most buyers plan for the mortgage. Almost nobody plans for what comes after.

Two Very Different Approaches to Renting

Here's something most people don't realize: there's a massive difference between renting with a plan and renting and investing the difference. They sound similar. They produce very different outcomes.

Renting with a Plan

In the fire service, we don't always have a rigid step-by-step process. We have a goal that needs to be accomplished and we figure out how to get there. Renting with a plan works the same way. You know you want to own. The question is: how do you get there? That means getting specific about your credit score target, your down payment goal, your debt situation, and your timeline. It's not passive waiting. It's active building.

Renting and Investing the Difference

This one is more tactical. Say your rent is $1,000 a month, but a comparable mortgage payment would be $1,500. Instead of spending that $500 difference, you invest it. At the end of a year, you've got at least $6,000 working for you, in a high-yield savings account, treasury notes, index funds, or wherever your risk tolerance takes you. That money becomes your down payment, your closing costs, your emergency reserve.

The discipline required to actually do that is harder than it sounds. But for people who aren't ready to buy yet, it's the single best use of the time they're renting.

It also requires accepting that you'll want to have a little help, mostly for guidance on which is the best investment for you and your risk tolerance. At the end of the day, there is no right or wrong way, just the one that's right for you.

The Wrong Reasons People Buy

In my experience, the most common reason people buy before they're ready is because everything around them says they should. The social pressure, the financial advice that says renting is wasted money, the comparison to friends who just closed on something. They're buying from pressure, not from a plan.

What people don't factor in is lifestyle. Someone who loves to travel, someone who isn't settled on a city yet, someone who's a bachelor who wants the flexibility to move. Those people probably shouldn't buy right now. Not because homeownership is bad. Because the timing is wrong for who they are at this point in their life.

Homeownership is a long game. The math only works if you stay long enough for it to work. If you're buying a house you'll sell in two years, the transaction costs alone likely wipe out any equity gain.

The worst reason to buy is because someone told you that you should. The best reason is because you have a plan and you're ready to execute it.

What Financial Readiness Actually Looks Like

Before the rent vs. buy math even matters, four things need to be in place:

• Stable income: consistently earning in the same field for at least 2 years (and if you own your own business, the principle still applies, but more on that in another article)
• Credit score of 620 minimum, ideally 680 or higher for better rate options
• Down payment plus closing costs. In Illinois, closing costs typically run 2-3% of the purchase price on top of your down payment
• 3-6 months of reserves left over AFTER closing. Not before, after (and I know this is going to be a point of contention for most people and other average agents)

That last one is the one that gets people. I've seen buyers who scraped together every dollar to get to closing and had nothing left when the first unexpected bill showed up. The house didn't fail them. The plan did.

Think of closing as the starting line, not the finish line. Your reserve is what keeps you in the race once you're running.

The Illinois Property Tax Reality Nobody Talks About

If you're looking in the Chicago suburbs, there's a number that will change your calculation more than almost anything else: property taxes.

Illinois has the second-highest property taxes in the nation. On a $300,000 home in Cook or DuPage County, you could be paying $6,000 to $9,000 per year in property taxes alone. That's $500 to $750 a month before your mortgage payment even enters the picture.

This is the number that surprises buyers more than anything. They get pre-approved based on the loan amount, they find a house they love, and then the full monthly payment (principal, interest, taxes, insurance, also known as PITI) is $400-$600 more than they expected.

Always run the full number. Not just the mortgage. The full number.

So How Do You Actually Decide?

Ask yourself these questions honestly:

• How long do you plan to stay in the area? Under 2 years, renting usually wins. Over 4 years, buying typically does.
• Do you have reserves after closing, or would buying wipe out your financial cushion?
• Is your income stable, or is a career change or move coming?
• Are you renting with a plan, actively building toward a purchase, or just renting because you haven't thought it through yet?
• Does your lifestyle support owning right now, or are you in a season where flexibility matters more?

None of these questions have a universal right answer. They have the right answer for you, based on your numbers and your situation. That's the only version that matters.

The Bottom Line

Renting isn't falling behind. Buying before you're ready isn't getting ahead. The only thing that moves you forward is having an honest plan, and actually executing it.

If you're renting right now, use that time. Know your credit score, know your savings target, know your timeline. Rent with a plan or invest the difference. Both beat renting with no strategy.

If you're ready to buy, run the full numbers... not just the loan amount. Factor in taxes, insurance, maintenance, and what you'll have left after closing.

Either way, the goal is the same: make a deliberate decision, not a reactive one.

Plan for the 90%. Know what you'll do when the 10% shows up. That's true in the fire service, and it's true in homeownership.

Brian Wittman | Blue Jean Broker

Real Estate | Mortgage | Life Insurance and Financial Coaching

bluejeanbroker.com

Whether you are buying, selling, figuring out your mortgage options, or making sure your family is protected -- I can help with all of it. Schedule a free strategy call at bluejeanbroker.com.

Licensed through Real Broker LLC (License 475.164962) | NMLS# 2646598 through NEXA Mortgage | Insurance services through Levinson and Associates. This article is for educational purposes and does not constitute financial, legal, real estate, mortgage, or insurance advice. Consult with a licensed professional for guidance specific to your situation.

Want to see your actual numbers side by side? Use the Rent vs. Buy Break-Even Calculator at bluejeanbroker.com, or schedule a free strategy call and we'll walk through your specific situation together.