The Illinois HELOC calculator estimate for a $50,000 home equity line of credit balance at today's MonitorBankRates Illinois average HELOC rate of 7.21% is an interest only payment of about $301 a month during a 10 year draw period, rising to about $394 a month once a 20 year repayment period begins, or $342 interest only if the prime rate rises one point, verified by MonitorBankRates as of November 10, 2026.
Lenders serving Illinois currently advertise HELOC rates from 5.95% to 6.49% across the 5 offers listed below. This calculator starts from Illinois numbers: the MonitorBankRates Illinois average HELOC rate and the Census median home value are already filled in. Enter the balance you expect to carry, test a rate change, or click a verified lender rate in the panel below to see the payments at that offer. The same $50,000 as a fixed rate home equity loan at the Illinois average of 7.07% costs $451 a month over 15 years; see the Illinois home equity loan calculator.
Use the home value for a Illinois city
Loads the median home value for the city into the equity check. The rate stays at the MonitorBankRates Illinois average.
Illinois HELOC Payment Estimator
Prefilled with the MonitorBankRates Illinois average HELOC rate and the median Illinois home value. Results update as you type.
Monthly payment over the life of the line
Year by year
| Year | Phase | Monthly Payment | Interest Paid | Ending Balance |
|---|
Current Illinois Average HELOC Rates
Today's MonitorBankRates Illinois averages first, then the lowest verified HELOC offers from lenders serving Illinois. Click any rate to run it through the calculator.
HELOC Offers in Illinois and the Interest Only Payment on $50,000
Interest only payment on a $50,000 balance at each lender's current HELOC rate, from rate sheets published by the lender and verified by MonitorBankRates. Some rates are introductory; check the lender's terms for the rate after the intro period.
- Land Of Lincoln Credit UnionHome Equity Line of Credit (Fixed Rate), APR 5.950%5.950%$248 a month interest only
- American Broadcast Employees Federal Credit UnionHome Equity Line of Credit (HELOC), APR 6.000%6.000%$250 a month interest only
- Cooperative Choice Network Credit UnionHome Equity Line of Credit, APR 6.000%6.000%$250 a month interest only
- Metro Federal Credit Union Arlington Heights, ILHome Equity Line of Credit, APR 6.490%6.490%$270 a month interest only
- R.I.A. Federal Credit UnionHome Equity Variable HELOC 80% LTV, APR 6.650%6.490%$270 a month interest only
Compare every HELOC and home equity loan, local banks and credit unions first, on the Illinois home equity rates page.
View Your Illinois HELOC Rate
Personalized HELOC and home equity loan quotes from lenders serving Illinois.
What a HELOC Costs in Illinois Right Now
| $50,000 HELOC balance, 10 year draw, 20 year repayment | Rate | Interest only | Repayment |
|---|---|---|---|
| Prime down 2 points | 5.21% | $217 | $336 |
| Prime down 1 point | 6.21% | $259 | $364 |
| MonitorBankRates Illinois average today | 7.21% | $301 | $394 |
| Prime up 1 point | 8.21% | $342 | $425 |
| Prime up 2 points | 9.21% | $384 | $457 |
| Prime up 3 points | 10.21% | $426 | $490 |
If the rate never changed, the $50,000 balance would cost about $80,629 in interest over the 30 year life of the line. The same $50,000 as a fixed rate home equity loan at the Illinois average of 7.07% costs $451 a month over 15 years, higher than the interest only payment but with the balance paid off and no rate risk. Existing HELOC rates change with the prime rate. Rates change daily; every figure on this page is recalculated when it loads from the current MonitorBankRates Illinois average.
HELOC Payments by Balance in Illinois
At the MonitorBankRates Illinois average of 7.21%, 10 year draw and 20 year repayment. The last column shows whether the balance fits under an 80% combined loan to value limit on the median Illinois home with a $145,000 first mortgage.
| Balance | Interest only payment | Repayment payment | Fits 80% CLTV on the median home |
|---|---|---|---|
| $25,000 | $150 | $197 | Yes |
| $50,000 | $301 | $394 | Yes |
| $75,000 | $451 | $591 | No, max about $65,600 |
| $100,000 | $601 | $788 | No, max about $65,600 |
| $150,000 | $902 | $1,182 | No, max about $65,600 |
| $200,000 | $1,202 | $1,576 | No, max about $65,600 |
HELOC Borrowing Power in Illinois's Largest Cities
The credit line a homeowner could open in each city on the median home with a first mortgage balance at 55% of value, at the 80% and 85% combined loan-to-value limits, and the interest only payment on a $50,000 draw at the MonitorBankRates Illinois average of 7.212%.
| City | Median home | Max line at 80% CLTV | Max line at 85% CLTV | Interest only on $50,000 |
|---|---|---|---|---|
| Chicago HELOC rates | $334,100 | $83,300 | $100,000 | $301 a month |
| Aurora HELOC rates | $274,800 | $68,800 | $82,600 | $301 a month |
| Joliet HELOC rates | $265,800 | $66,600 | $79,900 | $301 a month |
| Naperville HELOC rates | $540,200 | $135,200 | $162,200 | $301 a month |
| Rockford HELOC rates | $129,000 | $32,200 | $38,700 | $301 a month |
| Elgin HELOC rates | $273,000 | $68,400 | $82,100 | $301 a month |
| Springfield HELOC rates | $162,100 | $40,700 | $48,800 | $301 a month |
| Peoria HELOC rates | $156,200 | $39,000 | $46,800 | $301 a month |
| Champaign HELOC rates | $210,900 | $52,700 | $63,300 | $301 a month |
| Waukegan HELOC rates | $190,900 | $47,700 | $57,300 | $301 a month |
For example, a Chicago homeowner with a median-value home ($334,100) and a $184,000 first mortgage could open a line of up to about $83,300 at 80% CLTV. HELOC rates are variable and move with the prime rate, so the payment in the last column changes when the Federal Reserve moves.
HELOCs and Home Equity in Illinois
How large a line you can get. The median Illinois home is worth about $263,300. A homeowner who still owes 55% of that, $145,000, has $118,300 in equity. At the 80% combined loan to value cap most Illinois banks and credit unions use, the largest credit line is about $65,600; lenders that allow 85% go to about $78,800. The line limit is not the balance: interest is charged only on what you draw.
Prime plus margin. HELOC rates in Illinois are quoted as the prime rate plus a margin that depends on your credit and equity. When the Federal Reserve moves its target rate, banks move prime within days and your payment changes on the next cycle. Each one point move changes the interest only payment on $50,000 by about $42 a month. Many lenders advertise a low introductory rate for 6 to 12 months; run the calculator with the rate that applies afterward.
Home values and affordability. Illinois scores 102.5 on the MBR Housing Affordability Index, ranking 26 of 51 states where 100 is the national average and higher is more affordable. See the Illinois housing affordability page for the trend in home values that drives available equity.
How to Use the Illinois HELOC Calculator
- Start from the Illinois defaults
The rate is today's MonitorBankRates Illinois average HELOC rate and the home value is the state median. Pick a city above if we track one near you.
- Enter the balance you expect to carry
Interest is charged only on what you draw. Set the draw and repayment periods to match the lender's terms; 10 and 20 years is the most common structure.
- Click a verified lender rate and test a rate change
The panel lists the lowest current HELOC offers from lenders serving Illinois. Then enter how far prime might move to see both payments at that rate.
- Check your equity
Enter your mortgage balance to see the largest line most lenders would approve at an 80% combined loan to value limit.
Frequently Asked Questions About HELOCs in Illinois
What is the average HELOC rate in Illinois today?
The MonitorBankRates Illinois average HELOC rate is 7.21% as of November 10, 2026, and the average home equity loan rate is 7.07%, computed every day from rates published by banks and credit unions lending in Illinois. Individual lenders currently advertise HELOC rates from 5.95% to 6.49%, so compare offers on the Illinois home equity rates page.
How much is the payment on a $50,000 HELOC in Illinois?
At the MonitorBankRates Illinois average of 7.21%, a $50,000 HELOC balance costs about $301 a month interest only during a 10 year draw period. When a 20 year repayment period begins the payment rises to about $394 a month. If the prime rate rises one point the interest only payment becomes $342.
Why does a HELOC payment jump after the draw period?
During the draw period most Illinois lenders require only interest, so the balance never falls. When repayment begins the full balance is amortized over the repayment period, which adds principal to every payment. On $50,000 at 7.21% that is a move from $301 to $394 a month. Paying principal during the draw period or refinancing into a fixed rate home equity loan before the draw period ends avoids the jump.
How much can I borrow on a HELOC in Illinois?
Most Illinois lenders cap combined loan to value at 80%, some at 85% or 90%. On the median Illinois home worth $263,300 with a $145,000 mortgage, that allows a line of up to about $65,600 at 80% or $78,800 at 85%. Lenders also review your credit score and debt to income ratio.
HELOC or home equity loan in Illinois?
A HELOC suits expenses spread over time and carries a variable rate and a payment jump after the draw period. A home equity loan pays a lump sum at a fixed rate with a fixed payment. Today the MonitorBankRates averages are 7.21% for Illinois HELOCs and 7.07% for home equity loans; $50,000 costs $301 a month interest only on a HELOC versus $451 as a 15 year fixed loan. Existing HELOC rates change with the prime rate; home equity loan rates do not.
Do Illinois HELOCs have fees?
Many banks and credit unions charge no closing costs on a HELOC but require the line to stay open two or three years to avoid an early closure fee. Others charge an appraisal, origination or annual fee. Introductory rates for the first 6 to 12 months are common; the calculator should use the rate that applies afterward.
What credit score do I need for a HELOC?
Most lenders want a score of at least 620 to 680, with the lowest margins over prime going to borrowers above 740. Lenders also want a debt to income ratio under about 43% counting the new payment, and enough equity to stay under their combined loan to value cap.
HELOC Calculators for Other States
Each state page starts from that state's MonitorBankRates average HELOC rate and median home value. The national HELOC calculator compares the payment at every state's average.
