Imagine two envelopes arriving from your workers' compensation carrier eight months after your policy expired. One contains a check for $12,000. The other contains an invoice for $18,000. Both are completely normal — and both come from the same family of insurance arrangements that most small-business owners have never heard of until the mail shows up.
If your business has been on the same workers' comp carrier for a few years with a decent safety record, there's a good chance you're enrolled in either a dividend plan or a retrospective rating ("retro") plan without fully realizing what that means for your books. Neither is fraud, neither is a mistake, and neither should catch your bookkeeper off guard — as long as you understand the mechanics before the money moves.
Two Very Different Ways to "True Up" a Workers' Comp Policy
Most business owners assume workers' comp premium is fixed: you pay a rate based on payroll and job classification, and that's the end of it. For businesses on a standard guaranteed-cost policy, that's mostly true — the only adjustment is the year-end premium audit that reconciles estimated payroll to actual payroll.
Dividend plans and retro plans are different animals entirely. Both let your actual claims experience change what you ultimately pay, but they move in opposite directions from the reader's perspective:
- Dividend plans are an upside-only arrangement. You pay your standard premium up front, and if your loss ratio comes in low, the carrier's board of directors may vote to return a slice of that premium as a dividend. If losses are bad, you simply don't get a dividend — you don't owe extra.
- Retro-rating plans are a two-way street. You pay a lower "standard premium" up front specifically because the final bill will move with your actual losses — up or down. A good year means a refund-like adjustment; a bad year means an additional premium invoice, sometimes a large one.
Confusing the two is the single most common bookkeeping mistake business owners make with these plans, because both show up as unscheduled cash movements tied to a workers' comp policy that closed out long ago.
How Dividend Plans Actually Work
A dividend plan is the simpler of the two structures. You still pay a normal, fixed workers' comp premium during the policy period — nothing about your monthly or quarterly premium payments changes. The dividend is a separate, retrospective bonus layered on top.
The mechanics:
- Your policy runs its full term (typically 12 months) and you pay standard premium throughout.
- Roughly six to twelve months after the policy expires, the carrier calculates your final earned premium (after the year-end audit) and your loss ratio — the ratio of claims paid and reserved to premium earned.
- If you meet the plan's thresholds — commonly a minimum earned premium around $10,000 and a loss ratio under roughly 50% — the carrier's board can approve a dividend payment, often expressed as a percentage of earned premium on a sliding scale.
For example, a business with $50,000 in earned premium and a 15% loss ratio might land at a 24% dividend rate, generating a $12,000 check.
The catch that trips people up: dividends are legally discretionary. The insurer's board of directors approves them each year; they are not a contractual guarantee, and a dividend plan is not the same as a lower advertised rate. A carrier having a bad underwriting year across its whole book — even if your account performed fine — can mean no dividend is declared at all. Don't book a receivable for an anticipated dividend before it's actually declared.
How Retrospective Rating Plans Work
Retro plans are common for larger or mid-sized businesses with enough payroll and claims history to make individualized experience rating worthwhile, but smaller employers get pulled into them too, especially through group retro programs offered by trade associations.
Instead of a flat premium, a retro plan calculates your final cost with a formula roughly like:
Retrospective Premium = Basic Premium + (Incurred Losses × Loss Conversion Factor) × Tax Factor
Breaking that down:
- Basic Premium covers the insurer's overhead and profit margin, plus the cost of the retro rating arrangement itself — it's the floor cost of coverage even with zero claims.
- Incurred Losses are your actual claims costs during the period — both paid and reserved (estimated but not yet paid) amounts.
- Loss Conversion Factor loads on the cost of claims adjusting and administration.
- Tax Factor covers state premium taxes and assessments.
Most retro plans also include a loss limit, which caps how much any single catastrophic claim can count toward the formula, and both a maximum and minimum premium, so one very bad claim can't spiral your bill to an unlimited amount, and one very good year won't let you pay next to nothing.
The adjustment timeline is the part that matters most for accounting purposes. A typical retro plan recalculates the premium multiple times as claims develop and close:
- First adjustment: roughly 6 months after the policy expires
- Second adjustment: roughly 18 months after expiration
- Third adjustment: roughly 30 months after expiration
- Additional adjustments sometimes follow annually until all claims from that policy period are closed
Each adjustment can move the bill in either direction as open claims develop — a claim that looked like a $5,000 sprain at six months can become a $40,000 surgery-and-lost-wages claim at eighteen months, and your premium adjustment moves right along with it.
Booking the Cash: What Actually Hits Your Ledger
This is where the two plans genuinely diverge in your books.
Dividend checks
Because a dividend is not guaranteed and its amount isn't reasonably estimable until declared, the cleanest treatment is to not accrue it in advance. When the check arrives, record it as a reduction of insurance expense rather than as revenue or "other income" — you're not being paid for services rendered, you're getting a partial refund of premium you already expensed.
A simple entry when the dividend check clears:
Debit: Cash 12,000
Credit: Workers' Comp Insurance Expense 12,000Some businesses prefer to record it against a separate "Insurance Dividend Income" account instead of netting against expense, particularly if leadership wants clean visibility into how much dividend income the plan has generated year over year. Either is defensible — the point is consistency, and picking whichever view is more useful for a bookkeeping system where every transaction is a plain-text, auditable entry makes it trivial to see both the gross expense and the dividend offset in the same ledger without one obscuring the other.
Retro adjustment bills (and refunds)
Retro adjustments are a different story, because unlike a discretionary dividend, a retro premium adjustment is a contractual obligation tied to claims that have already happened. Under accrual accounting, once it's probable that an adjustment will produce additional premium and the amount is reasonably estimable, that's a liability that belongs on your books before the invoice arrives — not when the check is cashed.
In practice, this means:
- If you have open claims from a retro-rated policy period, work with your broker or carrier for a loss-development estimate (many carriers will provide an informal "indicated retro premium" between formal adjustment dates).
- Accrue the estimated additional premium as a liability and expense in the period the losses occurred — not the period the bill shows up — so your financials for that policy year reflect its true cost.
- When each formal adjustment lands (at 6, 18, and 30 months), true up the accrual to the actual invoiced or refunded amount.
A rough accrual entry when you expect an additional premium bill:
Debit: Workers' Comp Insurance Expense 18,000
Credit: Accrued Retro Premium Payable 18,000And when the actual invoice differs from your estimate, adjust the difference through the same expense line rather than burying it as a miscellaneous adjustment — that's what keeps year-over-year comparisons of your true labor cost accurate.
Why This Matters Beyond the Bookkeeping Mechanics
Retro plans in particular can distort a business's read on its own profitability if the adjustments aren't accrued. A construction or logistics company that had a rough claims year might look profitable on paper for eighteen months, then take a gut-punch retro bill that makes it look like a sudden, unexplained loss — when in reality the cost was earned the moment the claims happened, just not yet invoiced.
This is exactly the kind of timing mismatch that clear, version-controlled financial records are built to catch. When your chart of accounts and journal entries are plain text and auditable, it's straightforward to tag retro accruals distinctly, track the estimate-versus-actual variance at each adjustment date, and see at a glance whether your loss-control investments (safety programs, return-to-work programs, claims management) are actually moving your retro factor in the right direction over multiple policy years.
If your business is on a retro or dividend plan, loop your bookkeeper or accountant in on the policy structure specifically — not just "we have workers' comp," but which plan type, what the adjustment dates are, and what loss development looks like on any open claims. That's the information that turns a surprise invoice into a number you saw coming.
Keep Your Finances Organized from Day One
Whether you're tracking a straightforward premium or the multi-year true-ups of a retro-rated policy, clear financial records make the difference between being blindsided and being prepared. Beancount.io provides plain-text accounting that gives you complete transparency and control over your financial data — no black boxes, no vendor lock-in. Get started for free and see why developers and finance professionals are switching to plain-text accounting.