ARM vs Fixed Rate in Illinois
With Illinois's median home at $250,000 and conforming limit at $726,200, choosing between an ARM and a fixed-rate mortgage comes down to your time horizon and risk tolerance. Chicago and suburbs have seen moderate appreciation — less than coastal markets, partly dampened by property tax concerns deterring buyers. Suburban markets like Naperville remain strong.
When an ARM May Make Sense in Illinois
- You plan to sell or refinance within 5-7 years
- You're buying in a high-cost Illinois market where even a small rate reduction meaningfully lowers payments
- Rates are at cyclical highs and expected to fall — ARM initial rates can be 0.5-1% lower than fixed
When Fixed Rates Win in Illinois
- You plan to stay long-term (10+ years)
- Payment certainty matters more than short-term savings
- Illinois's property taxes (2.07%, avg $5,765/year) add enough payment variability without adding rate risk
Closing Costs
Either product incurs similar closing costs (~$3,900 in Illinois). Frequent refinancing to escape an ARM adds these costs repeatedly.
Frequently Asked Questions
Is an ARM or fixed mortgage better in Illinois?
It depends on how long you plan to stay. Illinois's median home of $250,000 with a 5/1 ARM can save on initial payments, but fixed rates offer certainty — especially important given Illinois's property tax rate of 2.07% adds its own payment variability.
What are conforming loan limits for ARMs in Illinois?
ARMs and fixed-rate loans both have the same conforming limit in Illinois: $726,200. Most Illinois counties are at the standard conforming limit. No counties currently qualify for high-cost treatment.
How much can I save with an ARM in Illinois?
ARM initial rates are typically 0.5-1% below 30-year fixed rates. On a $200,000 loan (20% down on Illinois's median home), that's roughly $100-200/month in savings during the initial period.
What are closing costs for a mortgage in Illinois?
Illinois charges a transfer tax of $0.50/$500 of value statewide, plus a City of Chicago transfer tax of $5.25/$500 which is one of the highest city-level rates nationally. Budget approximately $3,900 in total closing costs for either an ARM or fixed-rate mortgage in Illinois.