Everyone who is currently renting in the Chicago suburbs has done a version of this calculation in their head. You look at what you're paying in rent, you look at what a mortgage would cost, and you try to figure out if you're throwing money away or if buying would actually make things worse. The answer in 2026 is: buying will almost certainly cost you more per month in the short run, but the math flips if you stay put long enough. Here is what the numbers actually look like.
The Rate Problem
In early 2021, a 30-year fixed mortgage was sitting around 3%. Today it's around 7%. That difference is not cosmetic. On a $400,000 loan, the monthly payment at 3% is roughly $1,686. At 7%, it's $2,661. That's nearly $1,000 more per month on the same loan, before you add a single dollar of property taxes or insurance.
This is the core reason the rent-vs-buy math has inverted since the pandemic. Home prices in the Chicago suburbs did not fall enough to cancel out the rate increase. They actually went up. So buyers are dealing with higher prices and higher rates simultaneously, which is why monthly ownership costs now exceed comparable rents in most markets around here.
Three Suburbs, Side by Side
Skokie
The median home price in Skokie is around $450,000. Put 20% down — that's $90,000 out of pocket — and you're financing $360,000. At 7% on a 30-year fixed, your principal and interest payment is approximately $2,395 per month.
Then add Cook County property taxes. In Skokie, that runs roughly $7,000 to $8,000 per year, or $583 to $666 per month. Add homeowners insurance at around $150 per month and you're looking at a total PITI of approximately $3,100 to $3,200 per month.
A comparable 3-bedroom rental in Skokie runs $2,200 to $2,500 per month right now. So buying costs you roughly $600 to $1,000 more per month in the near term.
The equity side of the equation: at $450,000, even conservative 3% annual appreciation produces $13,500 per year in home value growth. Your principal paydown in year one is roughly $600 per month. Add those together and you're building around $20,700 in wealth per year through the asset itself — not counting whatever you'd otherwise be doing with that $90,000 down payment.
Naperville
Naperville is the aspirational suburb for a lot of families, and the prices reflect that. Median home price around $575,000. Twenty percent down is $115,000. You're financing $460,000 at 7%, which means principal and interest of about $3,060 per month.
DuPage County property taxes are where Naperville gets expensive. Expect $9,000 to $10,000 per year, or $750 to $833 per month. Total PITI lands around $4,000 to $4,100 per month.
Comparable 3-bedroom rentals in Naperville run $2,400 to $2,800 per month. The monthly buy premium here is $1,200 to $1,700 — the largest gap of these three markets.
At $575,000, 3% appreciation equals $17,250 per year in asset growth. The break-even horizon here is longer because the monthly gap is bigger. If you're confident you're staying in Naperville for 10-plus years and can absorb the front-loaded cost, the equity math still works. If you're on a shorter timeline, the numbers are harder to justify.
Note on DuPage vs. Cook County: DuPage is widely considered a better-run county with strong schools and services, but you pay for it in property taxes. Cook County suburbs like Skokie and Berwyn carry lower tax bills, which changes the rent-vs-buy equation meaningfully.
Berwyn
Berwyn is where the math gets closest to making immediate sense. Median home price around $275,000. Twenty percent down is $55,000. Financing $220,000 at 7% puts principal and interest at approximately $1,464 per month.
Cook County Berwyn property taxes run roughly $5,000 to $6,000 per year, or $416 to $500 per month. Total PITI: approximately $2,000 to $2,100 per month.
Comparable rental in Berwyn: $1,600 to $1,900 per month. The monthly buy premium here is somewhere between $100 and $400 — an entirely different category from Naperville. At this spread, even moderate appreciation and principal paydown makes the ownership case in two to three years.
The Numbers in One Place
Suburb | Median Buy Price | Est. PITI/Month | Comparable Rent | Monthly Buy Premium | Approx. Break-Even |
|---|---|---|---|---|---|
Berwyn | $275,000 | $2,000–2,100 | $1,600–1,900 | $100–400 | 3–5 years |
Skokie | $450,000 | $3,100–3,200 | $2,200–2,500 | $600–1,000 | 6–8 years |
Naperville | $575,000 | $4,000–4,100 | $2,400–2,800 | $1,200–1,700 | 9–12 years |
Break-even estimates assume 3% annual home appreciation, principal paydown, and rents increasing roughly 4–6% per year (which is consistent with the current Chicago metro trend).
A Note on FHA Loans
Not everyone has $90,000 to $115,000 sitting around for a 20% down payment. FHA loans let you get in at 3.5% down, which on a $450,000 Skokie home means $15,750 at closing instead of $90,000. The tradeoff: you're financing $434,250 at 7% (about $2,890 per month in P+I), and you're paying private mortgage insurance — roughly $150 to $200 per month on a loan that size — until you hit 20% equity. Your total monthly payment goes up, but your barrier to entry goes down substantially. For buyers with income stability but limited savings, FHA is a real path in. Just know you're adding roughly $200 per month to the short-term cost.
On Waiting for Rates to Drop
"I'll wait until rates come back down" is the most common reason people are sitting out right now. It's worth being honest about what waiting actually costs.
If you're renting a 3-bedroom in Skokie for $2,300 per month and you wait two years for rates to move, that's $55,200 in rent with zero equity accumulation. Chicago metro rents have been rising 4–6% per year. By the time rates drop to, say, 5.5%, your rent might be $2,500 per month and Skokie home prices might be $490,000 instead of $450,000 — meaning you'd need an even larger down payment. Rate drops also tend to trigger buying surges, which push prices up further.
Rates coming down is not a guaranteed outcome on any particular timeline, and the cost of waiting is real money paid every month toward someone else's equity. That's not an argument to buy regardless of your situation. It is an argument to do the math on what waiting is actually costing you before assuming it's the safe play.
Who Should Rent, Who Should Buy
If you're planning to stay fewer than five years, renting is almost certainly the right call in these markets, except possibly Berwyn where the monthly gap is small enough to make the math competitive even on a shorter timeline.
If you're planning to stay seven or more years and you can handle the down payment and the higher monthly cost in the near term, buying wins in all three of these markets. The equity accumulation over that time horizon overwhelms the monthly premium you're paying.
If you're planning to stay in Naperville specifically and your timeline is shorter than ten years, run the numbers carefully. The buy premium there is big enough that the break-even horizon stretches out further than most people expect.
The 20% down payment requirement is the biggest practical barrier for most buyers right now — not the monthly payment. If you have the cash and the timeline, the math on buying is better than it looks at first glance. If you don't have the cash and you're counting on FHA, make sure you're accounting for PMI in your monthly budget.
Data based on Q2 2026 median sale prices, current 30-year fixed mortgage rates of approximately 7%, and current rental listings in each market. Property tax estimates based on Cook County and DuPage County historical effective rates. Individual tax bills vary by property.
