QuickBooks or TurboTax Business are typically more robust for multi-entity companies, providing detailed forms and real-time support. H&R Block, TaxAct, and TaxSlayer can handle complex structures but may offer fewer specialized resources.

QuickBooks is the clear leader in this area, as it’s first and foremost an accounting solution with tax capabilities. TurboTax Business integrates with QuickBooks, while H&R Block Business and TaxAct require manual import or uploads.

Generally, QuickBooks and TurboTax Business are on the premium side, reflecting their breadth of features. H&R Block and TaxAct occupy a mid-range tier. TaxSlayer remains the budget-friendly option with fewer advanced bells and whistles.

H&R Block Business stands out if you want a local office option. The rest primarily provide online support, though QuickBooks does offer phone and chat for premium tiers.