ProducerSparkHome / Glossary / Commercial lines vs personal lines
Insurance glossary
What is the difference between commercial lines and personal lines?
A plain-English definition for wholesale insurance producers, and for the retail producers they work with.
Commercial lines insurance covers the risks of businesses and other organizations, such as general liability, commercial property, commercial auto and workers' compensation. Personal lines insurance is bought by individuals and families to cover personal risks, such as homeowners and personal auto. Agencies usually organize their producers and account managers by one or the other.
How it works.
Commercial accounts are underwritten one by one, often with multiple policies and markets, and can need specialty or surplus lines coverage. Personal lines are more standardized and usually written in high volume with admitted carriers.
According to WSIA, most surplus lines business is commercial, though it can include personal lines such as homeowners coverage in catastrophe-prone areas.
Why it matters to wholesale producers.
Most wholesale business is commercial, so wholesale producers usually want the commercial lines producers and account managers at a retail agency, not the whole staff. Knowing who handles commercial at each agency saves a lot of wasted outreach.
For retail producers: commercial accounts are where wholesalers and E&S markets come in most often.
Related terms.
On ProducerSpark.
Sources (opened October 23, 2026): IRMI: commercial lines; IRMI: personal lines; WSIA: An introduction to the surplus lines insurance market (2026). General information, not legal or tax advice. Requirements vary by state.
Questions.
Is workers' compensation a commercial line?
Yes. Workers' compensation covers employers, so it is a commercial line.
Do wholesalers write personal lines?
Some do, often for hard-to-place homes such as high-value or catastrophe-exposed properties, but most wholesale business is commercial.