Solution-IV Accounts Payable invoice entry in a web browser
Solution-IV Accounts Payable invoice entry, running in a browser with Web OpenWorkshop.

Solution-IV is a completely integrated business management system. The general accounting modules are GAAP-compliant and meet the needs of management and the finance department. The operations modules handle order processing, point of sale, job tracking and inventory, with a full range of pricing and customer discount options. Every module shares one set of data, so each department works from the same numbers.

Accurate, productive, versatile and connected

  • Accurate. Generally Accepted Accounting Principles are the foundation of Solution-IV. Every transaction goes through entry, a printed audit report and an update, so all financial information can be traced back to a source document.
  • Productive. Solution-IV is proven in thousands of installations. Lookups drill down to maintenance screens and back, every field has online help, and each workstation can work with its own processing date.
  • Versatile. Install it off the shelf or have it tailored to your business. Solution-IV is developed in Thoroughbred OPENworkshop, and the source code is included.
  • Connected. Use your data in spreadsheets, word processors, databases and imaging systems, and attach scanned documents and pictures to customers, vendors, employees and items.

Built for many industries

Solution-IV is in use in distribution, manufacturing and warehouse distribution, human resources and PEO services, employee leasing, import and export, municipal accounting and management, leisure services, emergency vehicle management and security systems. Two editions add features for specific industries: Solution-IV Reprographics and Solution-IV RTS for retail and team sales.

Runs where you do

Solution-IV runs on Windows 10 and 11, Windows Server 2016 and 2019, Linux, UNIX and VMS, with single or multiple companies and security by terminal, company and operator. All the regular Solution-IV products run in Web OpenWorkshop, so your staff can use Solution-IV in Chrome, Edge, Firefox or Safari with nothing to install on their workstations. Or let us run it for you with Hosted Services.

Current release

The current release is Solution-IV 8.85. Read the 8.85 release notes (PDF) and the 2025 Year End Information Guide (PDF). Manuals, quick-start guides and checklists are on the manuals page.

Solution-IV modules

Every module shares one set of data. Start with the core and add the rest when you need them.

Core modules

Accounting and operations that share one set of data.

Web modules

Self-service for your customers and live numbers for your managers.

Optional modules

Add them when you need them.

Interfaces

Connections to the other systems you use.

Resources

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