How to Start a Plumbing Business in Indiana: PLA Contractor and Journeyman Licenses

If you plan to do plumbing work for pay in Indiana, you need a state license. Plumbing contractors and journeyman plumbers are licensed statewide by the Indiana Plumbing Commission, which operates through the Indiana Professional Licensing Agency (PLA). This guide walks through the sequence: choosing the right license, meeting the qualifying route, filing the application, registering for the exam, handling the business paperwork, and keeping the license current. Where the state has not published a figure we could verify, we say so and tell you who to ask.

This article is informational content, not legal or tax advice. Licensing rules, fees, and deadlines can change. Confirm current requirements with the PLA and the Indiana Plumbing Commission before you file, and talk to a qualified attorney or CPA if your situation is complex, such as forming a new entity with business partners or hiring employees who will need their own licenses.

Know Which License You Need

Indiana uses several plumbing credentials, and they do different jobs. Picking the wrong one wastes the application fee and delays your start.

• Journeyman plumber: the license for an individual who performs plumbing work. Applicants must be 18 or older.
• Plumbing contractor: the license for an individual who holds the contractor credential that a plumbing business is built around. Applicants must be 18 or older and must document experience.
• Apprentice: the entry-level credential for someone enrolled in the apprenticeship route.
• Temporary plumbing contractor: a short-term credential. Confirm its scope and duration with the PLA before relying on it for a job.
• Corporate plumbing business: the registration for a business entity that does plumbing work. It requires an Indiana plumbing contractor license and a Certificate of Assumed Business Name where applicable.

If you intend to run the company and bid the work, you will almost always need the contractor license. If you intend to work for someone else's plumbing business, the journeyman credential is usually the starting point.

Indiana Plumbing License Fees at a Glance

These are the initial application fees on State Form 56009 (R7/11-25), filed under 860 IAC 1-1-2.1. Fees are non-refundable and non-transferable, so confirm eligibility before you pay.

Credential	Initial fee	Notes
Plumbing contractor	$50	Requires documented experience
Journeyman plumber	$30	Age 18 or older
Apprentice	$10	Apprenticeship route
Temporary plumbing contractor	$25	Confirm scope with the PLA
Corporate plumbing business	$50	Requires an Indiana plumbing contractor license and a Certificate of Assumed Business Name where applicable
Exam fee	Not confirmed	Confirm with PROV or the PLA before you register

The exam fee is the one number we could not verify from an official page. The PLA fee schedule page did not load for our research, so do not budget against a figure from a third-party site. Ask PROV or the PLA for the current exam fee before you register.

Materials and Information You Will Need

Gather these before you start the form. Missing documents are the most common reason an application stalls.

• Government-issued photo ID and proof that you are 18 or older.
• State Form 56009 (R7/11-25), the initial application for plumbing credentials. Download the current version from the PLA rather than an old copy.
• Experience records. For a contractor application, you must document experience. Keep employer letters, dated job records, and training certificates. Check the form for the exact type and amount of experience it asks you to document.
• Apprenticeship paperwork if you are using the apprenticeship route: enrollment from an approved apprenticeship school or program, and records showing where you are in the four-year program.
• Out-of-state license copies if you are applying on an out-of-state license, plus the license verification the board requires.
• Payment for the fee that matches your credential.
• An email address you check daily. The Commission and PROV communicate through it, and a missed message can cost you a registration window.
• A Certificate of Assumed Business Name if your business will operate under a name other than its registered legal name. The state form is State Form 30353. The online fee through INBiz is $20 per name.

Step-by-Step: From Application to Licensed Plumber

Step 1: Pick your qualifying route

Indiana accepts applicants through three main routes: an approved apprenticeship school, the plumbing trade (working experience), or an out-of-state license. Each route has different documentation. Choose the one that matches your actual history, because a route you cannot document will stall your file.

The apprenticeship route requires a four-year apprenticeship program. The program includes a practical exam within the first four years. If you are early in your career, enroll in an approved program first, since the four-year clock is part of the requirement.

Step 2: Confirm you meet the age and experience requirements

Both the journeyman and contractor credentials require you to be 18 or older. The contractor credential adds a documentation requirement. Start a folder of experience records now, not when you are filling out the form. Dates, employers, job types, and supervisor names are the details reviewers tend to ask about.

Step 3: Complete State Form 56009 and pay the fee

Fill out State Form 56009 (R7/11-25) for the credential you chose and pay the matching fee: $50 for a contractor, $30 for a journeyman, $10 for an apprentice, $25 for a temporary plumbing contractor, or $50 for a corporate plumbing business. Read the form's instructions for the citation to 860 IAC 1-1-2.1, which governs the application. Double-check your name and address against your ID. Mismatches are a common cause of returned forms.

Step 4: Wait for the Commission to approve your eligibility

The Commission reviews your application and decides whether you are eligible to sit for the exam. The state does not publish a standard processing time for this step in the sources we reviewed, so ask the PLA for a current estimate before you schedule work around your license. Do not begin paid plumbing work until you hold the license that covers that work.

Step 5: Register for the exam through PROV

After the Commission approves your eligibility, you register for the exam through PROV at provexam.com. You get up to seven attempts within two years. Confirm the exam fee with PROV or the PLA, because we could not verify it from an official source. Schedule the exam early enough to retake it if needed, and keep your confirmation email.

Step 6: Pass the exam and receive your license

Study the code and the plumbing principles the exam covers. Exam content and format are set by the exam provider and the Commission, so use the official exam information for your study plan. Once you pass and the license is issued, check that the name, license type, and expiration date are correct on the license and in the PLA's records.

Step 7: Set up the business entity, if you are forming one

Many plumbing contractors operate through an LLC or corporation. An LLC is formed with Articles of Organization through the Indiana Secretary of State's INBiz portal, and the filing fee is $95. A corporation is formed with Articles of Incorporation, also $95. A corporate plumbing business registration with the PLA costs $50 and requires an Indiana plumbing contractor license. If the business uses a name other than its registered name, file a Certificate of Assumed Business Name. Confirm the entity type with a CPA or attorney before you form it, because the choice affects taxes and liability.

For reference, Indiana does not levy a franchise tax. An LLC's income passes through to its owners, who pay the individual adjusted gross income tax. An LLC that elects corporate treatment pays the corporate adjusted gross income tax. This is general information, not tax advice.

Step 8: Check for local plumbing registration

State licensing is only part of the picture. Local plumbing registration may also apply. In Indianapolis, the Department of Business and Neighborhood Services (BNS) licenses plumbing contractors. For other cities, we could not confirm the local requirement, so contact the city's permit or building department before you bid work there. A state license does not automatically satisfy a local registration.

Step 9: Calendar your renewal dates

Plumbing credentials expire on December 31 of odd-numbered years. The next expiration for a 2026 license is December 31, 2027. Renewal fees are $30 for a journeyman, $100 for a contractor, and $100 for a corporation. Add the renewal date to your calendar with a reminder 60 days out, and renew before the deadline.

Indiana Plumbing License Lookup

Before you hire a plumber or subcontract to one, verify the license. Use the PLA's license search, reachable through the agency's website at https://www.in.gov/pla/. Search by name and confirm that the license type, status, and expiration date match what the person tells you. Check that the name on the license matches the name on the contract, since a license held by someone else does not cover the work.

The same search helps if you are a homeowner or general contractor. A plumber with an expired license may still be advertising work, so check the status before you hire.

Out-of-State Plumbers: No Reciprocity

Indiana does not have a reciprocity agreement with other states. An out-of-state plumber must submit an Indiana application, pay the fee, receive board approval, and pass the Indiana exam. An out-of-state license is a qualifying route, but it does not replace the exam. Plan for that timeline if you are relocating a business to Indiana.

What to Expect After You Are Licensed

A license generally lets you perform plumbing work under your own credential and, for a contractor, operate a plumbing business. In practice, many new contractors find that the first months are spent building the paperwork around the license: local registrations, insurance, bonding where required, and a business bank account. Results vary with the local market, your trade experience, and how quickly you complete the setup. The license is a foundation, not a guarantee of work.

If your plans include hiring apprentices or journeymen, each person needs their own valid credential before doing plumbing work. Keep a list of everyone's license numbers and renewal dates in one place.

Common Mistakes to Avoid

• Filing without enough experience records. Contractor applicants must document experience, and vague records slow the file.
• Using an old version of State Form 56009. Always download the current revision from the PLA.
• Assuming the exam fee. The exam fee is not confirmed in the sources we reviewed, so verify it with PROV or the PLA rather than a forum post.
• Starting work before the license is issued. Eligibility approval is not the same as a license. Wait for the credential.
• Skipping local registration. A state license does not cover city requirements, and Indianapolis runs its own process through BNS.
• Forgetting the assumed name. Operating under a trade name without a Certificate of Assumed Business Name creates problems with banks, customers, and the state.
• Missing the renewal window. A license that lapses on December 31 of an odd year can trigger late fees, and after March 1 of even years the late renewal fee adds $100 for a journeyman or $200 for a contractor or corporation.
• Hiring an unlicensed helper for licensed work. Verify every person on the job with the PLA license search.

Tips That Save Time

• Start the experience file now. Keep dated records of every job, employer, and supervisor. Reconstructing three years of history from memory is slow and error-prone.
• Use the apprenticeship route if you are early in your career. The four-year program gives structure, and the practical exam milestone keeps you on track.
• Verify fees and deadlines on the agency site on the day you file. Fee schedules and forms get revised, and an old figure can make a payment short.
• Register the entity and the assumed name before you advertise. Business cards, vehicles, and contracts should match the registered name.
• Keep a renewal calendar for every person on the team. One expired journeyman license can stop a job.
• Save your confirmations. Keep copies of the form, the payment receipt, the eligibility letter, and the exam registration.

Confirm These Items With the Agencies

Several details in this guide need a direct check before you rely on them:

• The exam fee, which must be confirmed with PROV (provexam.com) or the PLA.
• The current Commission processing time for eligibility decisions, which the PLA can estimate.
• The local plumbing registration rules for any city outside Indianapolis, which you should confirm with the city.
• The current experience documentation requirements on State Form 56009.

For the state business filings mentioned above, the Indiana Secretary of State's Business Services Division handles entity formation and the assumed name filing. Start at https://www.in.gov/sos/business/ and use INBiz at https://inbiz.in.gov/ to file online. Indiana's Small Business Development Center network at https://isbdc.org/ can also help you plan the business side at no cost.

When to Talk to a Professional

A single journeyman license is a manageable process. A new contractor forming an entity, adding partners, hiring employees, or bidding on public work has more moving parts. Talk to an Indiana-licensed attorney about your entity structure and contracts, and to a CPA about tax treatment. Both can save you from a costly restructuring later.

The Bottom Line

Getting licensed in Indiana comes down to picking the right credential, documenting your experience, filing State Form 56009 with the correct fee, passing the PROV exam, and then keeping the license current on the December 31 odd-year cycle. Handle the entity, the assumed name, and any local registration in the same pass so nothing blocks your first job. Confirm the items flagged above with the agencies, and you will know exactly where your license stands at every step.

This content is informational and is not legal or tax advice. Consult a qualified attorney or CPA for your specific situation.