Google Workspace includes Gmail, Google Drive, Docs, Sheets, Slides, Meet, Calendar, and Chat. Microsoft 365 includes Outlook, OneDrive, Word, Excel, PowerPoint, Teams, SharePoint, and Exchange. Both suites provide roughly equivalent core functionality for the most common business tasks: email, document creation, spreadsheets, presentations, video calls, and file storage. The functional differences within each category are real but often overstated for most small business use cases.
The decision most commonly comes down to two factors: what your team is already familiar with and what your clients and partners use most. Teams that have used Google's consumer products, Gmail, Google Docs, and Google Drive, personally tend to adapt to Workspace quickly. Teams that have used Microsoft Office in previous corporate roles tend to prefer 365. If the majority of your clients and partners send you Word documents, Excel files, and PowerPoint presentations, there is a practical argument for being in the Microsoft ecosystem where the native format matches. Google's tools can open and edit these formats, but occasional formatting inconsistencies arise when files move between ecosystems.
Gmail versus Outlook is often the sharpest preference divide within the two suites. Gmail's label-based organization and conversation threading suit users who prefer search over folders and who receive high email volume. Outlook's folder-based structure and calendar integration suit users who prefer explicit organization and who do heavy scheduling. Neither approach is objectively better. Both are used successfully by millions of businesses. The question is which approach your team prefers and is more likely to use consistently.
Google Sheets and Microsoft Excel are both capable spreadsheet applications, but Excel remains the tool of choice for complex financial modeling, advanced formula work, and any analysis that professionals in finance or accounting are performing. Google Sheets has improved significantly but has limitations on file size, formula performance, and macro capability that Excel handles better. For simple tracking and collaborative data entry, Google Sheets is often the more convenient choice because multiple people can edit simultaneously without the version control issues that affect shared Excel files saved to OneDrive.
Pricing at the entry level is comparable. Google Workspace Business Starter is approximately six dollars per user per month. Microsoft 365 Business Basic is approximately six dollars per user per month. Both provide business email, video calling, cloud storage, and the core productivity applications. Higher tiers in both suites add more storage, more advanced security controls, and more administrative features at progressively higher price points.
The right choice is whichever suite your team will actually use consistently, which is almost always the one that matches their existing habits and the communication norms of the clients and partners they work with most frequently.