The letter shows up thirty to sixty days before your plan year ends. One number is bigger than it was last year, and the explanation is one sentence long: "market conditions" or "claims experience," take your pick. That's not because the carrier is hiding something from you specifically. It's because the letter isn't written for you to understand — it's written to satisfy a filing requirement.
You don't need an actuarial license to read it. You need four questions, asked in order, before you decide whether to accept the number, push back on it, or shop it.
1. Is this a rating change or a plan change?
A renewal increase is usually two numbers stacked on top of each other, and carriers are not always eager to separate them for you. The first is the trend, or rating, increase: what the same exact plan costs next year because medical costs went up. The second is whatever happens if your census changed — someone older joined, someone left, your group got smaller or bigger.
Ask your broker or the carrier directly for the increase on a like-for-like basis: same plan, same census, no changes. If they can't produce that number quickly, that's itself useful information.
2. Is it in line with the trend, or ahead of it?
Small group medical trend has generally run in the high single digits to low double digits over the last several years, though it moves by state, by carrier, and by year. An increase that lands close to that range is unremarkable. An increase that's meaningfully above it isn't automatically wrong, but it's a reasonable thing to ask a direct question about: what specifically drove it beyond trend?
Large claims from one or two employees, a shift in your group's average age, or a change in your plan's richness can all justify running hot. "That's just what it came in at" is not an answer, it's a restatement of the number you already have.
3. Has the plan design quietly changed?
Sometimes the premium increase looks tame because the deductible, copays, or out-of-pocket maximum moved instead. That's not dishonest, it's a legitimate way to manage cost, but it needs to be a decision you made on purpose, not one that arrived as a side effect. Compare the actual plan document line by line against last year's, not just the premium page.
4. Has it actually been shopped?
This is the one most groups skip, usually because nobody offered to do it or because it sounds like more work than it is. Being re-shopped costs you nothing and doesn't touch your current coverage while it's happening. Even if you end up staying exactly where you are, you now know whether the renewal was competitive or just unchallenged.
A renewal that survives a real market check is a renewal you can accept with confidence instead of resignation. One that doesn't survive it just saved your business real money for the cost of one conversation.
"Unchallenged" and "fair" are not the same word, and a renewal letter has no way of telling you which one you're looking at.
If your current broker isn't walking you through these four questions before asking for a signature, that's worth noticing on its own. It's not a complicated service to provide. It's just one most groups never get offered.