Contractor Registration
888-848-7442.
Iowa Division of Labor
Contractor Registration
Application and Renewal Form
1000 East Grand Avenue
Des Moines, IA 50309
All “construction” contractors doing business in Iowa and making more than $2,000.00
Phone: 515-242-5871
per year must be registered with the Iowa Division of Labor. “Construction” is defined
very broadly to include companies or individuals who perform electrical, plumbing,
Fax: 515-725-2427
roofing, house painting, installation of landscaping, windows, cable, elevators and many
contractor.registration@iwd.iowa.gov
other activities.
Submit a $50.00 registration fee by check or money order payable to “Iowa Division of Labor,” a completed
application and any required attachments. An incomplete form or missing attachments will delay the registration
process. All contractors are required by
Iowa Code 91C
to renew yearly.
NAICS code
The North American Industry Classification System (NAICS) is used by Federal statistical agencies to classify businesses for
statistical purposes. The application requires the
NAICS code
that applies to your business activity. Choose from the list of
NAICS codes below.
230000
Other/Undefined
237310
Highway/Street and Bridge Construction
238220
Plumbing/Heating & A/C Contractors
236115
New Single-Family Housing Construction
237990
Other Heavy/Civil Engineering
238290
Other Building Equipment Contractors
236116
New Multifamily Housing Construction
238110
Poured Concrete Foundation Contractors
238310
Drywall & Insulation Contractors
236117
New Housing For-Sale Builders
238120
Structural Steel/Precast Concrete Contractors
238320
Painting & Wall Covering Contractors
236118
Residential Remodelers
238130
Framing Contractors
238330
Flooring Contractors
236210
Industrial Building Construction
238140
Masonry Contractors
238340
Tile/Terrazzo Contractors
236220
Commercial & Institutional Bldg Construction
238150
Glass and Glazing Contractors
238350
Finish Carpentry Contractors
237110
Water/Sewer Line Construction
238160
Roofing Contractors
238390
Other Building Finishing Contractors
237120
Oil/Gas Pipeline Construction
238170
Siding Contractors
238910
Site Preparation Contractors
237130
Power/Communication Line Construction
238190
Other Foundation/Structure & Bldg Exterior
238990
All Other Specialty Trade Contractors
237210
Land Subdivision
238210
Electrical and Wiring Installation
Plumbers
If you require a license with the Plumbers & Mechanicals Systems Board (PMSB), do not complete this form. Instead please
visit
or call 866-280-1521
to complete registration and licensing together.
Unemployment Insurance Number
You must obtain an unemployment insurance number before applying for contractor registration even if you have no
employees. To obtain a UI# visit
or contact customer service at
888-848-7442 or IWDuitax@iwd.iowa.gov.
Workers’ Compensation
A contractor with one or more employees must submit proof of workers’ compensation insurance. In most cases employers
must submit a certificate of insurance showing an effective date and listing the Division of Labor as a certificate holder. A
self-insured contractor shall submit a
Certificate of Relief
from the Iowa Insurance Division.
Out-of-State Contractors
Out-of-state contractors must file a $25,000.00 surety bond at the time of registration and renewal. The bond must be issued
by a surety company licensed to do business in Iowa on the
out-of-state bond form
provided at .
However, an out-of-state contractor that is pre-qualified to bid on projects for the Iowa Department of Transportation may
submit a letter.
Fee Exemption
Self-employed contractors who meet the specific criteria may send a completed fee exemption form instead of payment. To
qualify for registering without payment, a self-employed contractor must not work with or for other contractors in the same
phases of construction and must not pay more than $2,000.00 per year to employ others.
Online Public Portal
You may pay for your yearly $50.00 registration fee online. Unless you already have an account to do electronic business with
the State of Iowa, you will be required to create an Authentication & Authorization account. More information can be found
at .
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