Blue Cross small group renewals for January 1, 2027 are averaging about 15.4% in Illinois, and they aren't negotiable. Non-regulated mid-market renewals are releasing around 22%, and most groups will win back only 4 to 6 points. We expect mid-market groups that stay with Blue Cross to land in the low teens. Plenty won't stay.
Key takeaways
- Blue Cross small group renewals average about 15.4% for 1/1/2027. They're filed rates, so there's nothing to negotiate.
- Non-regulated mid-market fully insured renewals are releasing around 22%. Most negotiate down 4 to 6 points. Some move more.
- Mid-market groups that stay with Blue Cross should land around 12% after negotiation and plan changes.
- Expect movement in Illinois: mid-market fully insured groups to UnitedHealthcare and Aetna, level-funded groups to Cigna, more groups to self-funded ASO, and some smaller groups to ICHRA.
- Blue Cross's own level-funded plan, Blue Balance Funded, is the best spot for a healthy group if you can get it. It's gatekept: quotes mostly go to stable, younger, healthier groups Blue Cross already insures.
- ICHRA doesn't dodge the trend. Blue Cross filed 14.90% in the Illinois individual market, close to its 15.69% small group filing.
- Blue Cross's own research says hospital coding, likely AI-assisted, is adding billions to claims for the same care. Its Illinois parent, HCSC, lost $1.9 billion in 2025.
How big are Blue Cross's 2027 renewals?
They're the biggest in years, and they split by group size. Nationally, nearly 300 small group insurers filed a median 14% increase for 2027, according to KFF's review of preliminary rate filings. That's up from 11% the year before. The median insurer expects underlying medical cost growth of 10.8%.
Small group (1 to 50 employees): about 15.4%, take it or leave it
Blue Cross and Blue Shield of Illinois filed an average 15.69% small group increase for 2027 with the Illinois Department of Insurance. Plan-level increases run from 6.66% to 26.83%. A year ago, it filed 13.5%. The renewals we're seeing average about 15.4%, right in line.
That's the highest of seven Illinois small group filings. UnitedHealthcare's four Illinois companies filed averages between 9.2% and 12.91%.
There's no negotiating a small group renewal. ACA small group rates are filed with the state and apply to every group in the pool. Your own claims don't move them. Your only levers are plan choice, employee contributions, a different carrier, or a different funding model.
Mid-market (51+ employees): about 22%, with limited room to move
Groups over 50 aren't in the regulated small group pool. They're underwritten. Their renewals blend their own claims with the carrier's pooled trend, so there's no filed rate to check them against.
Blue Cross mid-market fully insured renewals are releasing around 22% on average. They can be negotiated. For most groups, that's worth 4 to 6 points. Some move more, usually with clean claims and a credible competing quote on the table.
What we're seeing on Blue Cross 1/1/2027 fully insured renewals in Illinois. Observations from our book; filed figures from the Illinois Department of Insurance.
| Segment |
Average renewal |
Negotiable? |
Typical relief |
Where groups land |
| Small group (1-50) |
~15.4% (15.69% filed) |
No |
None |
~15.4%, or a plan or funding change |
| Mid-market (51+) |
~22% initial release |
Yes |
4-6 points, more on some |
Low teens (~12%) for groups that stay |
Why do the groups that stay land near 12% if relief is only 4 to 6 points? Two reasons. Most also buy down the plan a notch. And the groups that stay skew toward the ones with lower releases or bigger concessions. The worst renewals leave.
Where are Illinois groups moving?
We expect real market transition this year, more than in a typical renewal cycle. Here's where we see it going:
- Mid-market fully insured to UnitedHealthcare and Aetna. Groups that want to stay fully insured are shopping the other national carriers.
- Level-funded to Cigna. Healthier groups willing to take some risk are looking at level funding, and Cigna is where most of that is going.
- Self-funded ASO. Larger groups with stable claims are moving to administrative services only contracts with their own stop-loss.
- ICHRA. Mostly smaller groups that want a fixed, predictable cost instead of a group renewal.
Not every move is the right one. Level funding gives you some claims data and a possible surplus, but it's not the same as self-funding. A cheaper fully insured carrier this year can renew hard next year. Moving carriers also means new networks, which your employees will notice.
Can you get level funding from Blue Cross?
Sometimes. Blue Cross and Blue Shield of Illinois has its own level-funded plan, Blue Balance Funded, for small groups and the mid-market. It's the best seat in the building if you can get it. Your employees keep the Blue Cross network. Your cost follows your own claims instead of the pool's trend, with a possible credit back if claims run low.
The catch? Blue Cross rarely offers it. It's gatekept. Quotes go mostly to groups it already insures and knows well: stable, younger, healthier populations with clean claims. Don't expect a number back from a cold request. Your broker has to ask for it, and your experience has to back up the ask.
So if you're a healthy Blue Cross group, ask for a Blue Balance Funded quote before you shop anywhere else. It's the one move that can cut cost without a network change. If Blue Cross won't release one, that tells you how it sees your risk. Cigna's level-funded plan is the usual next stop.
Does ICHRA get you away from the increase?
Not if your employees stay with Blue Cross. Blue Cross and Blue Shield of Illinois filed a 14.90% average increase in the Illinois individual market for 2027, with plans ranging from a 5.30% decrease to a 33.90% increase. That's close to its 15.69% small group filing. Same carrier, same hospitals, same trend.
Other individual carriers filed lower. UnitedHealthcare filed 12.35%, Oscar 12.70%, MercyCare 12.15% and Celtic 9.20%. Molina filed 1.80%.
So ICHRA doesn't escape trend. What it changes is who carries it. Your cost becomes an allowance you set. Each employee picks a carrier and plan, and some will pick the lower-increase ones. Individual rates are also age-rated, so older employees feel increases more than younger ones.
Is AI really pushing hospital claims up?
The early data says yes, at least in part. The Blue Cross Blue Shield Association has published two claims studies on it.
The first looked at maternity stays. At the hospitals adopting AI coding fastest, the share of births coded with postpartum anemia jumped from 4.0% to 12.3% between 2022 and early 2025. Transfusion rates barely moved. One Blue plan audited an outlier system and found fewer than 20% of those cases met clinical criteria. BCBSA projects national exposure at $663 million inpatient and at least $1.67 billion outpatient. (BCBSA report.)
The second looked at major bowel surgery. It ties higher coded severity to about $942 million in extra spending for Blue plans from 2023 to 2025. The hospitals coding the most severity didn't use more ICU care or transfusions.
It isn't only inpatient. Trilliant Health found outpatient visits shifting to higher-level billing codes after health systems adopted AI scribes.
Read this with some care. BCBSA is a payer with a stake in the argument. Its data comes from claims, not charts. Hospitals point to older, sicker patients. Trilliant thinks much of the shift is doctors who used to under-code finally documenting fully.
Either way, the bill is higher. Payers are answering with downcoding, and Illinois has already moved to limit how carriers do that. In a fully insured plan, you never see this fight. You just get the trend number.
What does HCSC's $1.9 billion loss mean for your renewal?
It means less room to negotiate. HCSC is the parent of Blue Cross and Blue Shield of Illinois, Texas, Oklahoma, Montana and New Mexico. Its 2025 annual report shows a $1.9 billion net loss, after $659 million of net income in 2024. Underwriting losses grew from $572 million to $3.5 billion. Benefit costs rose from $57 billion to $63.1 billion.
A big piece of that growth was Medicare. HCSC bought Cigna's Medicare business in March 2025. Its Medicare membership went from about 1 million to 4.5 million. HCSC blamed the loss on higher use of care and higher acuity across all lines of business.
Look at that word, acuity. On a claim, acuity is whatever got coded.
To be clear, a carrier can't just bill your group for its Medicare losses. Small group and individual rates have to be justified to regulators on commercial experience. But a carrier that lost $1.9 billion is rebuilding margin. Underwriting concessions get rare. Trend assumptions run conservative. That's why a 22% mid-market release moves 4 to 6 points, not 10.
What should you do with your 2027 Blue Cross renewal?
It depends on which side of 50 employees you're on.
Small group. Skip the negotiation. It isn't there. Compare plan options inside Blue Cross, then quote other carriers. If your group is healthy, ask Blue Cross for a Blue Balance Funded quote first, then price level funding elsewhere. If you'd rather set a fixed budget, model ICHRA, using the individual rates your employees would actually face.
Mid-market. Run it in order:
- Negotiate the release. Ask for the trend, pooling and demographic factors behind the number. A competing quote is what moves it.
- Price the buy-down. A deductible or copay change can cut several points. Know what it costs employees before you trade it.
- Test the funding model. If you're still in the mid-teens after negotiation, the issue isn't this year's rate. It's the structure. Healthy groups should ask Blue Cross for a Blue Balance Funded quote before looking elsewhere.
Fully insured is the one model where you pay for coding trends, carrier losses and pooled risk without seeing any of it. Self-funding with stop-loss lets you audit claims and challenge coding.
Which one fits? It depends on headcount, cash flow, claims history and risk appetite. Run your numbers through the Funding Fit tool before you sign anything. It takes about two minutes.
And if you've accepted every renewal for five years, here's what that habit actually costs.
Frequently asked questions
Can you negotiate a Blue Cross small group renewal in Illinois?
No. Small group rates for groups of 1 to 50 are filed with the Illinois Department of Insurance and apply across the whole pool. Blue Cross and Blue Shield of Illinois filed an average 15.69% increase for 2027. Your options are plan changes, contribution changes, another carrier, or a different funding model.
How much can a mid-market group negotiate off a 22% renewal?
Most groups win back 4 to 6 points on a 2027 Blue Cross mid-market renewal. Some get more, usually with clean claims and a credible competing quote. Groups that stay with Blue Cross should land around 12% after negotiation and plan changes.
Are individual market rates going up as much as small group in Illinois?
For Blue Cross, nearly. Blue Cross and Blue Shield of Illinois filed a 14.90% individual market increase for 2027, against 15.69% in small group. Other individual carriers filed between 1.80% and 12.70%, so ICHRA employees who switch carriers may see smaller increases.
Does Blue Cross offer level funding in Illinois?
Yes, through Blue Balance Funded, but it's hard to get. Blue Cross mostly quotes it to groups it already covers with stable, younger, healthier populations. If that's your group, ask for it before you move carriers. You keep the Blue Cross network, and your cost follows your own claims.
Can a fully insured employer challenge AI-driven coding?
Not directly. In a fully insured plan, the carrier pays claims and folds the cost into your rate. Self-funded plans can audit claims, review coding on high-cost stays, and set payment rules through their TPA.
Should we leave Blue Cross over one renewal?
Not over one renewal alone. Compare the negotiated increase against the cost, risk and network disruption of each alternative. The funding models guide explains how fully insured, level-funded, self-funded and captive plans differ.
