Tax Prep
CPA Tax Vault & Schedule C Prep
Hand your CPA a clean bundle. Every receipt, every category, every reconciliation.
Includes 14-Day Free Trial — Instant Access
Schedule C-ready categorization
Audit-proof receipt vault (signed URLs)
Quarterly estimated-tax dashboard
1099 export for contractors
CPA export bundle (CSV + PDF)
Home-office & mileage capture
Stop the marketplace tax
Stop Paying the 20% Marketplace Tax
Sawyer charges booking fees on your own clients. BrainInABox OS™ gives you 0% marketplace fees, built-in inventory COGS, and complete business + personal vault management.