New Hampshire Contractor License Fee Calculator
Estimate your New Hampshire contractor license fees based on license type, classification, and whether you are applying for a new license or renewing. Fees are based on RSA 310-A and the NH Office of Professional Licensure and Certification (OPLC) fee schedule.
Formula
Grand Total = (Base Fee × N) + (Late Penalty × N) + (Exam Fee × N)
- Base Fee = License fee for the selected type and class (new or renewal rate)
- Late Penalty = max(Renewal Fee × 0.50, $25.00) per license — applies only to late renewals
- Exam Fee = $82 (trades) or $55 (general contractor) per individual — applies only when exam is selected
- N = Number of licenses / individuals
Example: A business renewing 3 Master Electrician licenses late:
Base = $75 × 3 = $225 | Late Penalty = $37.50 × 3 = $112.50 | Total = $337.50
Assumptions & References
- General Contractor fees are based on NH RSA 310-A:21 and the NH OPLC Residential Contractors fee schedule.
- Electrician fees are based on NH RSA 319-C and the NH OPLC Electricians Board fee schedule.
- Plumber fees are based on NH RSA 329-A and the NH OPLC Plumbers Board fee schedule.
- Mechanical/HVAC fees are based on NH RSA 153:27-a and the NH OPLC Mechanical Licensing Board fee schedule.
- Late renewal penalty is 50% of the applicable renewal fee with a minimum of $25, per NH OPLC policy.
- Exam fees reflect PSI/Prometric standard rates: approximately $82 for trade exams and $55 for general contractor exams.
- Licenses are typically valid for 2 years; renewal cycles may vary by board.
- This calculator does not include background check fees, insurance verification fees, or local permit fees.
- Apprentice licenses for electricians, plumbers, and mechanical trades generally do not require a separate exam.
- Source: NH Office of Professional Licensure and Certification (oplc.nh.gov)
New Hampshire imposes distinct licensing obligations on contractors across trade classifications — electrical, plumbing, mechanical, and general construction — with fee schedules that vary by license tier, application type, and renewal cycle. Miscalculating these costs at the business-planning stage can create cash-flow gaps or cause compliance failures that result in stop-work orders. This calculator page identifies each fee input, the statutory authority behind it, and the arithmetic used to produce a total estimated licensing cost.
What New Hampshire Contractor Licensing Covers
The New Hampshire Office of Professional Licensure and Certification (OPLC) administers licensing for electricians, plumbers, and mechanical contractors. General contractors — meaning those who manage residential or commercial construction projects without a specific trade classification — register separately through the NH Department of Labor under the residential contractor program.
This two-agency structure means a business operating across trade types may hold an OPLC-issued trade license and a Department of Labor registration simultaneously, producing additive fee exposure that a single-agency estimate would miss.
Statutory authority for electrician licensing sits in NH RSA Title XXX Chapter 329-A. Plumbers and mechanical contractors operate under adjacent chapters within the same title. The NH General Court publishes current statutory text that governs all fee schedules; the OPLC may not charge fees not authorized by statute.
Calculator Inputs
Input 1 — License Classification
Select the primary classification that matches the work performed:
| Classification | Issuing Agency | Statutory Basis |
|---|---|---|
| Electrician (Master / Journeyman / Apprentice) | OPLC | NH RSA Ch. 329-A |
| Plumber (Master / Journeyman) | OPLC | NH RSA Title XXX |
| Mechanical Contractor (HVAC) | OPLC | NH RSA Title XXX |
| Residential General Contractor | NH Dept. of Labor | RSA 310-A:188 et seq. |
A sole proprietor performing electrical work and managing the general construction of the same project must account for fees under both the OPLC and the Department of Labor frameworks.
Input 2 — License Tier
Within each trade, New Hampshire uses a tiered structure. For electricians (according to OPLC):
- Apprentice Electrician — entry-level, supervised practice
- Journeyman Electrician — independent field work under a master's permit
- Master Electrician — full authority; required to pull permits
Each tier carries a different application fee and a different two-year renewal fee. The master electrician license carries the highest base cost in the electrical classification.
Input 3 — Application Type (New vs. Renewal)
New applications generally include an examination fee component not present at renewal. Renewal fees are assessed on a 2-year cycle for most OPLC trade licenses (according to OPLC). Failing to renew on time triggers a late penalty, which the OPLC adds to the standard renewal amount.
Input 4 — Business Entity vs. Individual
For general contractors registering with the NH Department of Labor, the registration fee differs between individual sole proprietors and business entities. A business entity registration fee is assessed at the organizational level, while an individual registration fee applies to the natural person doing business under their own name.
Input 5 — Workers' Compensation Verification
New Hampshire requires contractors to carry workers' compensation coverage or file an approved exemption. While the exemption itself carries no direct fee, the NH Department of Labor requires documentation at registration. Businesses with payroll will factor in premium costs separately from the registration fee; the calculator addresses only the state fee component.
Fee Estimation Formula
The total estimated licensing cost uses the following additive model:
Total Fee = Application/Renewal Fee
+ Examination Fee (if new application)
+ Late Penalty Fee (if applicable)
+ Secondary Agency Registration Fee (if dual classification applies)
Example calculation — Master Electrician, new application, individual:
According to the OPLC, a new master electrician application includes both an application fee and an examination fee. Using published OPLC fee schedules, a new master electrician application runs approximately $125 in combined fees (application + exam), with a 2-year renewal of roughly $100. These figures are subject to legislative revision; the NH General Court publishes any statutory amendments that affect the fee schedule.
Example calculation — Residential General Contractor, business entity, new registration:
The NH Department of Labor charges a registration fee for residential contractors. Business entity registrations are assessed at a higher rate than individual registrations, with published schedules available directly from the Department.
How This Calculator Uses Bureau of Labor Statistics Data
The Bureau of Labor Statistics Construction Industry data provides median hourly wages for construction occupations in New Hampshire. This data feeds a secondary output: license fee as a percentage of annual gross labor cost. For a journeyman electrician earning the BLS-reported median for the region, the combined first-year licensing cost typically represents less than 0.5% of annual wages — a metric useful for business-plan modeling and for comparing NH's fee burden against neighboring states.
Federal Compliance Overlay
The U.S. Small Business Administration identifies New Hampshire as a state where contractor licensing requirements are enforced at the state rather than municipal level for most trade classifications. This means a single valid OPLC license or Department of Labor registration satisfies the licensing requirement statewide, without separate municipal fees for each project jurisdiction — a structural difference from states like Massachusetts that delegate licensing authority to individual cities.
Common Calculation Errors
- Counting only the application fee and omitting the examination fee on new applications
- Assuming a single license covers both trade work and general contracting project management
- Overlooking the 2-year renewal cycle and budgeting as if fees are annual
- Failing to include the business entity registration fee when a sole proprietor incorporates mid-license period