N-342C: Composite Schedule for Form N-342 (2025)
Hawaii · Hawaii DoTax · Used for tax years 2025
Form N-342C calculates Hawaii’s allowable Renewable Energy Technologies Income Tax Credit for each eligible system when 10 or more eligible systems are installed and placed in service during a single taxable year. It details the information reported on a composite Form N-342, inc
Who files this form
Form N-342C is used to calculate the allowable Renewable Energy Technologies Income Tax Credit (RETITC) for each eligible system when 10 or more eligible systems have been installed and placed in service during a single taxable year.
It provides the detailed schedule for information reported on a composite Form N-342.
What you'll need
Have Form N-342 available, along with the information requested on this schedule:
- Your name, SSN or FEIN, and Hawaii Tax ID number, if any.
- The tax year, or beginning and ending dates for your fiscal year.
- Each system’s property number, system type, and date installed and placed in service.
- Total output capacity if the credit is for an “other solar energy system.”
- Information for the tax credit computation, including the number of units where requested.
- Each system’s physical property address, including street address, city or town, and ZIP code.
How to file
Complete Part I to calculate the tax credit. The lines in Part I correspond to the lines on Form N-342.
Complete Part II with the physical property address for each system installed and placed in service. Attach Form N-342C to Form N-342.
The supplied form text does not give a mailing address or e-filing instructions.
Common mistakes
- Do not leave Form N-342C separate from Form N-342. The form specifically says to attach it.
- When completing Part I, remember that its line numbers correspond to the lines on Form N-342.
- Check that this is the right schedule: the form says it is used when 10 or more eligible systems were installed and placed in service during a single taxable year.
Questions people ask
What is Form N-342C for?
It is a detailed schedule of the information reported on a composite Form N-342 and calculates the allowable RETITC for each eligible system.
Does this schedule include both solar and wind-powered systems?
Yes. Part I includes sections for solar energy systems and wind-powered energy systems.
When is total output capacity requested?
The form requests total output capacity when the credit is for an “other solar energy system.”
Do I need to list each system’s property address?
Yes. Part II requests the physical property address for each system installed and placed in service, identified by property number.