How to Measure Retention, Hit Ratio, and Rewrite Rate in a P&C Book
Policy count, premium, and household retention give three different answers from the same book. This is how each is calculated, where lapses and rewrites distort them, and what commission and contingency formulas actually reward.
Policy retention, premium retention, and household retention defined
Retention is the heartbeat of a property and casualty agency, but the numbers rarely agree. A book with steady premium may still lose policies. A policy count that holds steady can mask shrinking households. To get a true read, you need to understand the flavors of retention: policy, premium, and household.
Policy retention measures the percent of expiring policies renewed with your agency, regardless of carrier or product changes. If you started the year with 900 policies and 810 are renewed, your policy retention is 90 percent.
Premium retention tracks the dollars that stay on the books. If rate increases or upselling mean you renew fewer policies but for higher value, your premium retention may outpace your policy retention. This matters for agencies paid on commission volume.
Household retention goes deeper. It counts whether the client, the family or business, remains with your agency, even if they switch carriers or consolidate policies. This is the toughest to track but often the best signal of long-term loyalty, especially in personal lines where households may hold auto, home, and umbrella policies under one roof.
Each metric tells a different story. Policy retention is the most basic and easiest to compute. Premium retention gives a better view of revenue stability. Household retention is the gold standard for client loyalty, but the hardest to measure without a robust management system.
Keep reading: Renewal Mistakes That Turn Into E&O Claims at a P&C Agency
Where rewrites hide: same client, new policy number, lost credit
Rewrites are a double-edged sword in retention math. When a client hates a renewal rate, a rewrite to another carrier or product keeps them on your books. The client stays, but the policy number changes. This can scramble retention reports if your agency tracks only policy numbers, not client relationships.
Some agency management systems treat a rewrite as a cancel, shrinking your policy retention. Others may count the new policy as "new business," inflating your new sales numbers. In reality, the agency saved the client but lost the original policy. This distinction matters because:
- Carrier bonuses often exclude rewrites as "new" business.
- Some contingency formulas only reward true growth, not internal churn.
- Your producers may be paid new business commission for a rewrite, but it does not grow the agency.
The right way to track rewrites is by linking the outgoing and incoming policies under the same client. This lets you see true household retention and avoids double counting. It also reveals how many "saves" mask underlying rate or coverage dissatisfaction.
Counting lapses, flat cancels, and mid term moves correctly
It is easy to get tripped up by cancellations, especially when timing blurs the lines. Three events distort your numbers: lapses, flat cancels, and mid-term moves.
Lapses
A lapse happens when coverage ends and is not replaced. If a policy expires and the client leaves, it is a lost policy. But if the client returns after a gap, should you count it as a new sale? Most agencies do, though it comes with risk: frequent lapses can signal service problems or price shopping clients.
Flat cancels
A flat cancel means a policy is voided from inception, often within days or weeks of issue. Counting these in your denominator can artificially lower your retention. Many agencies exclude flat cancels from both the numerator and denominator when calculating retention rates.
Mid-term moves
When a client moves coverage mid-term to a new carrier, it may look like a cancel, but if the agency writes the replacement, the household is retained. The original policy is lost, but the client remains. Counting only policies lost or gained can miss this client-level loyalty.
For the cleanest retention math, agencies often set rules: exclude flat cancels, treat mid-term rewrites as retained households, and count policies as lost only when the client truly leaves the book.
Keep reading: Correcting a Contractor's Experience Mod Before Workers Comp Renewal
Hit ratio by line, by carrier, and by producer
The hit ratio tells you how many quoted prospects become clients. It is a core sales metric, but can reveal much more when sliced by product line, carrier, or producer.
Hit ratio by line
Personal auto may have a lower hit ratio than home or renters. Commercial property can be even tougher, with more competitive quoting. Tracking hit ratio by line shows where your marketing converts best and where the quote-to-bind process falls short.
Hit ratio by carrier
Some carriers are easier to sell than others. If your hit ratio with Carrier A is twice that of Carrier B, it could signal better pricing, coverage options, or ease of doing business. This intel helps adjust carrier appointments and focus training.
Hit ratio by producer
Producers with high hit ratios may be better at pre-qualifying leads or closing deals. Low hit ratios may signal wasted time on poor prospects or problems in the sales script. Comparing producers helps managers coach and reward the right behaviors.
To calculate, divide the number of bound policies by the number of quotes delivered in the same period. Consistent definitions matter: only count real quotes delivered to prospects, not rough estimates or phone ballparks.
New business versus renewal commission and how the split shapes behavior
Commission structure drives producer focus. In most agencies, new business pays a higher commission than renewals. This is meant to reward hunting, but it can backfire.
If rewrites are paid as new business, producers may be tempted to move accounts at every renewal, even when not needed. This inflates new business numbers but does not grow the agency. True organic growth only happens when new clients are added, not when existing clients are shuffled between carriers.
Some owners move to a blended model: a moderate commission on new business, a healthy renewal commission, and extra bonuses for high household retention. This reduces churn and aligns producer behavior with agency value.
Tracking commission by both new and retained clients gives a clear picture of revenue sources and helps spot trends before they hit the bottom line.
See how BinderRenew handles this for insurance
How contingency and profit sharing formulas weigh loss ratio, growth, and volume
Most carriers offer contingency or profit sharing bonuses, paid annually to agencies that meet targets. The formulas are complex but usually balance three things: loss ratio, growth, and premium volume.
Loss ratio
This is the percent of premium paid out in claims. Lower is better. Carriers set thresholds, if your book stays below a certain loss ratio, you are eligible for a payout. One large loss can blow the year for a small agency.
Growth
Growth measures net premium added to the book. New business matters, but so does retention. An agency that renews 98 percent of its book may earn a larger bonus than one that adds new clients but loses half of them each year.
Volume
Some bonuses require a minimum premium volume to qualify. This ensures carriers reward agencies that bring in enough business to matter. The best payouts go to those who combine size, growth, and a clean loss history.
Profit sharing can be a significant part of agency revenue. Missing the mark by a few points on loss ratio or retention can mean the difference between a payout and nothing.
Average premium per household and the multiline effect on retention
Multiline households are the backbone of high retention. When a client holds more than one policy, say, auto and home, they are less likely to leave. The average premium per household is a simple way to track this, calculated by dividing total premium by the number of households in the book.
Agencies with higher average premium per household often have stronger retention. This is partly because multiline clients are stickier, but also because cross-sold accounts are more profitable. Selling a second or third policy deepens the relationship and increases the switching cost for the client.
It pays to track not just the number of policies per household, but also the average premium. This shows both depth of relationship and revenue concentration. When reviewing retention, always slice the results by single-policy versus multiline households to see where your agency is most vulnerable.
A one page monthly scorecard for a small agency
Boiling retention and sales metrics down to a one-page scorecard keeps the focus clear. Each month, a small agency can track:
- Policy retention, premium retention, and household retention
- Hit ratio by line, carrier, and producer
- New business written versus rewrites
- Average premium per household
- Number of multiline versus single policy households
- Policies lost to lapse, flat cancel, or mid-term move
- Commission split by new, renewal, and rewrites
- Year-to-date contingency eligibility
Presenting this data side by side, month after month, makes trends leap off the page. Gaps in retention or a spike in rewrites signal problems before the renewal season hits. A simple grid or dashboard view lets owners and producers see how their actions shape the agency's future.
Tracking all these numbers by hand is possible, but time-consuming. Many agencies now rely on policy renewal pipeline tools that automate expiration alerts, rewrite tracking, and retention reporting, so the team sees the full picture at a glance.