For businesses and individuals required to report and remit California withholding taxes, navigating the necessary forms and deadlines can be a significant administrative burden. CA 592 for Windows is a software solution designed to streamline this process, specifically targeting the filing of California’s Form 592 series. This guide provides an overview of what this software does, who it is for, and its relevance to California tax compliance.
What is CA 592 for Windows?
CA 592 for Windows is a specialized tax preparation and filing software designed to handle the California Form 592 series. This series, which includes Forms 592, 592-B, and 592-V, is used by withholding agents to report and remit taxes withheld from payments made to nonresident individuals and entities . The software was developed to simplify a traditionally complex and time-consuming process, allowing users to prepare, print, and electronically file these forms directly with the California Franchise Tax Board (FTB) .

Understanding the Form 592 Series
The “CA 592” in the software name refers to the core form it is designed to manage. To understand the software’s purpose, it is helpful to understand the forms it handles:
- Form 592 (Resident and Nonresident Withholding Statement): This is the primary form filed by withholding agents to report the total tax withheld during a tax period. It serves as a transmittal document summarizing the payments and tax withheld for all payees .
- Form 592-B (Withholding Tax Statement): This form is provided to each individual payee (the person or entity from whom tax was withheld). It details the amount of California-source income paid and the tax withheld, which the payee then uses to claim a credit on their own California tax return .
- Form 592-V (Payment Voucher): This voucher is used to accompany a tax payment when filing Form 592 by mail.
Key Features and Functionality
The software was designed to automate and simplify the filing process, reducing errors and administrative overhead.
Streamlined Filing and Data Entry
The software’s primary function is to allow users to complete and file the correct forms. Key features typically include:
- Direct Filing to the FTB: The software allows users to securely transmit their withholding tax data directly to the California Franchise Tax Board, avoiding the need for paper filing .
- Excel Integration: It often includes the ability to import data directly from Excel spreadsheets (.xls, .xlsx). This is a crucial feature for businesses with a large number of payees, as it eliminates manual data entry .
- Error Detection: The software is designed to check for common filing errors that could lead to FTB rejections, helping ensure that submissions are processed quickly and without issues .
Printing and E-filing Options
Users could choose between filing electronically or printing completed forms on plain paper for mailing. The software supported printing forms that could be folded into standard #10 double-window envelopes, a feature that simplified the mailing process for businesses that still needed to file on paper .
Support for Outsourcing
Beyond being a self-service software, the technology behind CA 592 was also used by service providers. Companies offering outsourcing services could use this or similar software to file taxes on behalf of their clients, which was particularly useful for businesses that wanted to reduce their administrative burden .
Who Was CA 592 For?
This software was designed for a specific audience: businesses, partnerships, and individuals acting as withholding agents in California . These are entities that are required to withhold tax on California-source income paid to nonresidents, which can include:
- Independent contractor compensation
- Rents and royalties
- Distributions to nonresident partners or members
- Other California-source income
It was also an essential tool for tax professionals and service providers who manage withholding tax filings for multiple clients.

Legacy and Current Relevance
CA 592 for Windows is a legacy product. The version published on CNET (4.01) was released in 2013, and the software is no longer under active development. While it was a valuable tool at the time, modern businesses and tax professionals are more likely to use contemporary solutions.
Why It Became Obsolete
The need for third-party software like CA 592 for Windows has diminished for several reasons:
- Modern Filing Systems: The FTB has evolved its own online filing systems, making it easier for businesses to file directly without specialized third-party software.
- Cloud-Based Solutions: The market has shifted towards cloud-based tax filing services that offer more features, easier updates, and don’t require installation on a specific computer.
- Built-in Features in Mainstream Software: Major tax preparation software like TurboTax now includes the ability to enter Form 592-B information as part of their California state tax module, reducing the need for standalone software for many users .
Should You Use It?
For anyone currently needing to file California withholding taxes, relying on a discontinued software from 2013 is not recommended. It would not be updated for current tax law changes, and compatibility with modern Windows systems is not guaranteed. Instead, users should look to modern, supported solutions provided directly by the FTB or reputable tax filing service providers.
Frequently Asked Questions (FAQs)
1. What is the CA 592 software used for?
It is a Windows-based tax preparation and filing tool designed to help businesses and withholding agents complete and submit California Forms 592, 592-B, and 592-V to the Franchise Tax Board.
2. Who needs to file a Form 592?
Any entity or individual acting as a withholding agent in California must file Form 592 if they withhold income tax on payments made to nonresident individuals or entities. This includes payments for services, rent, royalties, and certain other California-source income .
3. What is a Form 592-B?
Form 592-B is a tax statement issued by the withholding agent to each payee. It reports the total amount of payment or distribution subject to withholding and the amount of tax withheld . The payee uses this form to claim a credit on their personal or corporate California tax return.
4. Is CA 592 for Windows still a valid solution?
No. The version available online is a legacy product from 2013 and is no longer maintained. It is not recommended for current tax filing, as it is out of date and may not be compatible with modern systems.
5. Can I file Form 592 electronically without this software?
Yes. The California Franchise Tax Board offers its own systems for electronic filing. For individuals, tax preparation software like TurboTax also provides a way to enter and report withholding from Form 592-B .

Conclusion
CA 592 for Windows was a vital tool for many businesses navigating California’s complex withholding tax requirements at a time when digital filing was less integrated. Its ability to simplify data entry, automate filing, and reduce errors was a significant advantage. However, the software is now a legacy product, and its time has passed. For modern California tax compliance, users should always rely on current, supported tax software or the official online tools provided by the state’s Franchise Tax Board to ensure accuracy and compliance with the latest regulations.