LicensebyState

Missouri to Iowa: residential contractor license reciprocity

No credit· Start overVerified September 17, 2026· 10 sources

Missouri does not issue a statewide residential contractor license, so there is nothing to transfer. Here is Iowa's standard path for out-of-state applicants.

Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.

Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.

Everyone registers the same way; an out-of-state contractor license transfers nothing

Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.

A residential contractor licensed in another state registers in Iowa exactly as a first-time applicant does, and holding that license neither helps nor hinders the application. DIAL does not review, verify or credit out-of-state credentials for contractor registration, and it has nothing to waive: Iowa's contractor registration law and its rules impose no examination, no experience requirement and no competency test, and neither the statute, the rules nor the application asks about another state's license. Iowa also does not participate in the NASCLA Accredited Examination program, because it holds no contractor examination for that examination to replace. Coming from out of state changes only one thing, and it costs money rather than saving it: a contractor whose principal place of business is in another state must file a continuous $25,000 surety bond on DIAL's own bond form, issued by a surety licensed in Iowa, or show that the Iowa Department of Transportation has prequalified the business to bid on its projects. Opening a branch office in Iowa does not avoid the bond, and subcontractors are not covered by the general contractor's registration or bond - each files its own. The rest of the route is the same for everyone: obtain an Iowa unemployment insurance employer account number, file the workers' compensation certificate naming DIAL as certificate holder or a statement that coverage is not required, complete the application online or on paper, and pay $50 for one year or $150 for three.

The 30-day figure is the rule's own deadline: 481 IAC 465.7 gives the director 30 days from receipt of a completed application to issue the number, and the department's own guidance repeats that processing can take up to 30 days and that a contractor 'is not registered until a contractor registration number is issued.' Registration numbers are the letter C followed by six digits and are published in DIAL's public contractor lookup. The seven factors in 481 IAC 465.2 decide whether a business counts as out-of-state for bonding: where the home office is shown on government filings, where payroll is prepared, where business is transacted, where the officers or owners live and work, where the bank accounts are, where fixed business property is, and where management decisions are made. Contractor Registration can be reached on 515.242.5871 or at [email protected], DIAL, 6200 Park Avenue, Suite 100, Des Moines, IA 50321.

At a glance

Trade exam
Waived
Law / code exam
Not required
Out-of-state hours
Do not count
Typical processing
About 30 days

What you must already have

  • Registration is required of anyone who earns at least $2,000 a year from construction work in Iowa. A person who earns less than that, or who works only on their own real estate or property, is not a contractor under the law and does not register.Iowa Code 91C.1(1)(a) and 481 IAC 465.1. The definition of construction is adopted from 871 IAC 23.82(96) and is deliberately wide: it covers single-family housing construction, building alterations, land subdivision and development, remodeling, demolition and every special trade, and the department describes it as more than 400 categories.
  • Each construction business with its own federal identification number registers separately, a joint venture registers as an independent entity, and subcontractors are not covered by the general contractor's registration. Changing business form, for example from a sole proprietorship to a corporation, requires a new registration rather than an amendment.481 IAC 465.3, 465.4 and 465.5(3). Any other change in the information on file must be reported to DIAL within 15 working days, and changes to workers' compensation coverage within ten days before the change takes effect.
  • Iowa asks for no trade experience, apprenticeship hours, education, references or examination result, so documented years of homebuilding in another state neither shorten nor replace any step of registration.The complete application is listed at 481 IAC 465.4 and the complete conditions of registration at Iowa Code 91C.2. Neither includes a qualification of any kind.

What you'll do to get licensed in Iowa

  1. 1Application fee. Pay the application fee ($50). Contractor registration fee: $50 per year, or $150 for a three-year registration. The fee is not refundable. A self-employed contractor who does not pay more than $2,000 a year to employ other people and does not work with or for other contractors in the same phase of construction is exempt from the fee and files a fee exemption form instead, but still registers and must file a new exemption form at each renewal. Registration is renewed every year; DIAL sends a renewal form by mail or email the month before expiry, and a contractor who renews on time keeps the same registration number. Credit card and ACH payments are not accepted over the phone..
  2. 2Surety bond. Post a surety bond ($25,000). Out-of-state contractor bond: a $25,000 surety bond, on DIAL's own bond form, from a surety company licensed to do business in Iowa, required of every contractor whose principal place of business is in another state. Keeping a branch office in Iowa does not avoid it, and subcontractors must post their own. The bond runs to the State of Iowa, is continuous until the surety cancels it on at least 30 days' written notice, and runs concurrently with the annual registration term. It guarantees payment of taxes, unemployment compensation contributions, penalties, interest and related fees owed to the state, and only the State of Iowa and its agencies may claim against it. In place of the bond, a contractor may file a letter showing that the Iowa Department of Transportation has prequalified it to bid on department projects. When work in Iowa ends, the surety asks DIAL in writing to release the bond..
  3. 3Insurance. Carry the required insurance. Workers' compensation: a certificate of insurance from the carrier showing coverage and its effective dates and naming the Department of Inspections, Appeals, and Licensing as certificate holder. A self-insured employer files the commissioner of insurance's release under Iowa Code 87.11 instead, and a contractor with no employees files a statement that it is not required to carry coverage. The insurer must notify DIAL when a policy is cancelled, and the contractor must notify DIAL ten days before any change in coverage. Losing coverage is grounds for revoking the registration..
  4. 4Business license. Obtain a business license. An Iowa unemployment insurance employer account number issued by the unemployment insurance services division of Iowa Workforce Development, obtained before applying. Every contractor needs one, in state or out of state, even with no employees. The application also requires a federal employer identification number for a business entity, or the owner's Social Security number for a sole proprietor, and the business's NAICS code or a description of its principal products and services..
  5. 5Other. The registration application itself, filed online through DIAL's contractor registration portal or on the department's paper form, giving the business name, the mailing address of the principal place of business, the business telephone number, the type of entity, and the name, address, telephone number and position of every corporate officer or of each owner. DIAL issues a registration number within 30 days of a complete application, and no construction work may be performed in Iowa before the number is issued..
  6. 6Other. Separate trade licensing where the work calls for it. Contractor registration does not authorize plumbing, mechanical, HVAC, refrigeration, sheet metal or hydronic work: those require a contractor license from the Iowa Plumbing and Mechanical Systems Board under Iowa Code chapter 105, applied for on a joint application that produces both the license and the contractor registration number, so a licensed plumbing or mechanical business does not file a separate registration application. Electrical work requires a license from the Iowa Electrical Examining Board under chapter 103. Asbestos, lead-based paint, elevator, boiler and alarm and fire protection work each carry their own DIAL credential as well..
  7. 7Other. Local permits and any local requirements. A city or county building official may not issue a construction permit to a contractor who is required to hold a contractor registration number and does not have one, so the registration must be in hand before pulling permits. DIAL directs contractors to contact the city or county government for each project to find out what else that jurisdiction requires. Registration is also a precondition for being awarded a contract to perform work for the state or a state agency..

Published fees on this path total $50, excluding exam-vendor fees, bonds, and insurance.

What you'll need to buy or arrange

Surety bond

A license or contractor bond is bought from a surety, not the state. Price is a small percentage of the bond amount and depends on your credit.

  • Surety bond · $25,000

Liability insurance

Some states require proof of general liability or workers' compensation coverage at licensing time.

  • Insurance

Business registration

If you plan to contract in your own name, budget for a business license or entity registration on top of the trade license.

  • Business license

How Iowa licenses residential contractors

Iowa residential contractor · “Construction Contractor Registration

Statewide license

Verified September 17, 2026· 6 sources

Issued by Iowa Department of Inspections, Appeals, and Licensing (DIAL), Contractor Registration

Iowa does not license residential building contractors. It registers them, and the registration is the only statewide credential a homebuilder or remodeler needs: there is no trade examination, no business-and-law examination, no experience or apprenticeship requirement, no financial statement and no named qualifying party anywhere in Iowa Code chapter 91C or in 481 Iowa Administrative Code chapter 465. Registration is with the Department of Inspections, Appeals, and Licensing, which took the program over from Iowa Workforce Development in the 2023 state government reorganization. The duty is broad and the threshold is low: every individual and business performing construction work in Iowa must register if they earn at least $2,000 a year from construction, and only people who earn less than that, or who work solely on their own real estate, are outside the law. The same registration covers houses, apartments and commercial buildings alike, because Iowa draws no residential/commercial line and issues no classes, tiers or dollar limits - the definition of construction it borrows from the employment security rules expressly reaches single-family housing construction, building alterations, land subdivision and development, and general contractors of every kind. The registration belongs to the business rather than to a person, so a builder moving to Iowa registers the sole proprietorship, partnership, corporation or LLC that will sign contracts, and each business with its own federal identification number registers separately. What Iowa asks for instead of qualifications is tax and workers' compensation compliance: an Iowa unemployment insurance employer account number, proof of workers' compensation coverage or a statement that none is required, a $50 annual fee, and - for any contractor whose principal place of business is outside Iowa - a $25,000 surety bond. Iowa does hold real competency licenses in the trades, through the Electrical Examining Board under chapter 103 and the Plumbing and Mechanical Systems Board under chapter 105, and those are separate credentials with their own exams.

Moving to IowaLeaving Iowa

Why Missouri has nothing to transfer

Missouri residential contractor · “Residential Building Contractor / Class C general contractor / construction business license (city-issued)

Licensed by cities and counties

Verified September 17, 2026· 19 sources

Issued by No state authority; cities and counties license, register or exempt residential contractors

Missouri issues no statewide residential contractor, home builder or remodeler license. The Division of Professional Registration's own list of regulated professions contains exactly one construction trade - Electrical Contractors - and Title XXII of the Revised Statutes, which holds every occupational licensing chapter from 324 to 346, has no chapter for contractors or builders at all. The one statewide construction credential Missouri does offer is the voluntary electrical contractor license under RSMo 324.900 to 324.945, and its own definitions confine it to electrical contracting; there is no building-contractor equivalent, so a residential builder has nothing at state level to apply for or transfer. Plumbers are examined by cities over 15,000 people and by first-classification counties under RSMo chapter 341, again locally rather than by a state board. Housebuilding is therefore regulated jurisdiction by jurisdiction, and Missouri splits sharply in two: Kansas City and Independence run genuine competency programs built on ICC or Prometric examinations, while St. Louis City, St. Louis County, Springfield, Columbia and Jefferson City ask a residential builder for nothing more than a business license and proof of workers' compensation. A contractor moving to Missouri qualifies separately in each place where permits will be pulled, and in the two testing cities the credential that actually travels is a passing score on a recognized national residential-builder examination rather than another state's license.

How local licensing works in Missouri

How it works in Missouri. There is no state contractor board, no state application and no state exam. Each city or county writes its own ordinance, so a builder holds whatever the local jurisdiction requires everywhere it works, and a credential from one Missouri city does not carry into the next of its own force. The single statewide preemption in Missouri construction law is the electrical one: RSMo 324.925 forces every political subdivision to recognize a statewide electrical contractor license and bars it from testing that holder's electrical proficiency. Nothing equivalent exists for builders, and the statute expressly leaves cities free to license and examine in other trades. What that produces is two very different kinds of place. In Kansas City and Independence a residential builder is examined and personally qualified. In St. Louis City, St. Louis County, Springfield, Columbia and Jefferson City the trades are examined and the builder is not - the builder simply buys a business license.

Kansas City. City Planning & Development runs a two-part system under Article XII of the Kansas City Building and Rehabilitation Code, and it is the only place in Missouri with a purpose-built residential builder credential. An individual first earns the Residential Building Supervisor certificate of qualification, which covers "constructing, structurally altering or enlarging any one- or two-family detached dwelling or townhouse including detached accessory buildings in excess of 400 square feet." The applicant files an application with a $60.00 nonrefundable fee and "shall earn a passing score on one of the two recognized exams administered for Kansas City, Missouri: the residential construction (10344) examination administered by Prometric or the standard residential building contractor (W13) examination administered by ICC." The exam is waived where the applicant holds "a passing score on a standard Prometric or ICC examination or other department-approved national testing agency examination comparable in content," documented to the Building Official's satisfaction - and the city states outright that it built the program to match Independence and Johnson County, so "if you have passed a residential builder exam in either of these jurisdictions, you will not be required to retest," and continuing education hours earned there count toward renewal. Being a Missouri-registered engineer or architect does not substitute for the exam. The company then applies for the Residential Building Contractor license, which needs a full-time managerial employee holding the supervisor certificate (the owner may be that person), a business license from the Finance Department, a current Missouri Secretary of State registration and a certificate of insurance carrying at least a $1,000,000 aggregate limit per occurrence and naming the City of Kansas City as additional insured. Fees are $60.00 to apply and $181.00 to issue, with $181.00 quadrennial renewals on both the license and the certificate; the certificate itself is free for its first four years. Applications go through CompassKC; [email protected], (816) 513-1500.

Independence. The city licenses the individual, not the company: "contractor licenses belong to the licensed individual, NOT a company," and "anyone hired to complete permittable work within the City of Independence" needs one. The residential tier is the Class C general contractor license, described as residential only, and the license "covers framing, footings, and general construction." Qualification is one of three things: ICC or Prometric test scores from within the last five years at 75 percent or better; "a current, active license with a jurisdiction that we reciprocate with," which the city defines broadly as "any jurisdiction that issues licenses in a similar fashion"; or, for a general contractor license, a bachelor's degree in engineering, architecture or construction science from an accredited college or university. Licenses expire on December 31 every year with no proration. A business license shows you may trade in the city; the contractor license shows you are qualified to do the work, and you need both. Authorized users may be added to a license, but the holder answers for their work. [email protected], (816) 325-7401.

St. Louis City. The Building Division operates four boards of examiners - electrical, mechanical contractors and pipefitters, plumbers and drainlayers, and sprinkler system contractors - and none of them touches building contractors. A residential builder needs a construction or contracting business license from the License Collector: a state tax number, the application form, clearance from the Collector of Revenue, an occupancy permit from the Building Division, and proof of workers' compensation coverage or a signed statement that the law does not require it. The city also requires that "all general contractors ... furnish a list of the sub-contractors on any job to the License Collector." No exam, experience or bond applies. Building Division, City Hall Room 425, 1200 Market St., (314) 622-3313.

St. Louis County. The county is explicit: "the County does not license general contractors," though it "does verify that out-of-state contractors are registered with the state," and it "does register all repair contractors that obtain permits for repairs from a natural disaster such as a flood or severe storm." What it does license is the trades, through Transportation and Public Works: electrical licensing, mechanical licensing (four contractor categories under the county Mechanical Code) and plumbing licensing, each with its own board, and "the County only issues trade permits to licensed contractors." A homebuilder in unincorporated St. Louis County therefore pulls permits without a county builder credential but must use licensed trade contractors. 41 South Central Ave., 6th Floor, Clayton, 314-615-5184. Note that most of the county's ninety-odd municipalities run their own building departments, so check the city as well.

Springfield. Building Development Services will not issue a permit until "a City-licensed General Contractor (GC) or Trade Master (TM) ... is listed on the permit," so the credential is mandatory - but it is a business license, obtained from the License Division, not a tested qualification. Springfield's testing program covers the crafts only: "electricians, plumbers, gas fitters, and mechanical craftsmen must be tested and certified to afford competence and knowledge of the codes," and those trades may substitute an out-of-jurisdiction exam score of 75 percent or better from Prometric, Experior, Block or ICC where the examination is identical to Springfield's. Contractors who carry workers' compensation file proof of it; those who are not required to carry it sign a notarized exemption statement. Permit desk 417-864-1585, License Division 417-864-1617.

Columbia. Community Development's Building and Site Development division licenses trades only - Trade Apprentice, Electrical Certification, Mechanical Certification and Plumbing Certification - because "electricians, plumbers, gas fitters and mechanical craftsman must be tested and certified," with the tests "administered by a private testing firm according to a regular schedule." There is no builder certification and no board of building examiners. A residential contractor takes out a city business license instead: $0.25 per $1,000 of gross receipts with a $75 annual minimum, a $10,000 annual maximum and a $45 application fee, plus a certificate of workers' compensation insurance for any construction business with one or more employees. Business License Division 573-874-7378.

Jefferson City. "All contractors performing work in Jefferson City must have a local license," but the split is the same as elsewhere: "electrical and plumbing contractors and their employees are required to obtain specific trade licenses directly from the Building Regulations Division," while "all other contractors are directed to the Business License Division to obtain their business license." A residential builder therefore files for the business license and takes no examination. Building Regulations (573) 634-6410, Business License Division (573) 634-6322.

Everywhere else. Missouri's other cities and counties set their own rules, and many require nothing but a permit and proof of insurance. Ask each building department what it licenses before you contract there. If you plan to sit an examination anywhere in Missouri, the practical move is the ICC standard residential building contractor (W13) or the Prometric residential construction (10344) paper, because those are the two Kansas City names outright and the same scores satisfy Independence, and a passing result documented from an approved agency is the nearest thing Missouri has to a transferable builder credential.

Moving to MissouriLeaving Missouri

Common questions

Do I have to take the Iowa residential contractor exam if I'm licensed in Missouri?
No. The trade exam is waived on this path.
What does it cost to get a Iowa residential contractor license from Missouri?
Published fees on this path total $50, not counting exam vendor fees or bonds.
Do my Missouri work hours count in Iowa?
No. Iowa does not credit out-of-state hours on this path.
How long does the application take?
The board's published or typical processing time is about 30 days.
Does it work the other way, from Iowa to Missouri?
Not necessarily. Reciprocity is directed. Going from Iowa to Missouri, the mechanism is not applicable.

Sources

  1. Iowa Code 103A.20 - State building code; permits, duty to issue · Iowa Code 103A.20(1)(b) · Iowa Legislature · Statute · verified September 17, 2026
  2. Iowa Code chapter 91C - Construction Contractors (full chapter text) · Iowa Code ch. 91C · Iowa Legislature · Statute · verified September 17, 2026
  3. DIAL Contractor Registration - Out-of-State Contractor Bond Form · Iowa Code ch. 91C · Iowa Department of Inspections, Appeals, and Licensing · Form · verified September 17, 2026
  4. DIAL - Contractor Registration (who must register, fee, out-of-state bond, FAQ) · Iowa Code ch. 91C · Iowa Department of Inspections, Appeals, and Licensing · Agency Page · verified September 17, 2026
  5. DIAL - Electrical Licensing (Iowa Electrical Examining Board) · Iowa Code ch. 103 · Iowa Department of Inspections, Appeals, and Licensing · Agency Page · verified September 17, 2026
  6. Iowa Contractor Registration - checklist and frequently asked questions brochure · Iowa Code ch. 91C · Iowa Department of Inspections, Appeals, and Licensing (Division of Labor) · Faq · verified September 17, 2026
  7. 481 Iowa Administrative Code chapter 465 - Construction Contractor Registration · 481 IAC ch. 465 · Iowa Legislature / Iowa Department of Inspections, Appeals, and Licensing · Admin Rule · verified September 17, 2026
  8. 871 IAC 23.82(96) - Definition of construction employer (scope of "construction" for contractor registration) · 871 IAC 23.82(96) · Iowa Legislature / Iowa Workforce Development · Admin Rule · verified September 17, 2026
  9. NASCLA Accredited Examination for Commercial General Building Contractors · National Association of State Contractors Licensing Agencies · Other · verified September 17, 2026
  10. NASCLA Accredited Examination for Commercial General Building Contractors - participating state agencies · National Association of State Contractors Licensing Agencies · Other · verified September 17, 2026

Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.

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