How do I track expenses across multiple gig platforms?

Consolidation is the secret. Route all your gig income into one business checking account and put all business spending on one business card, so a single monthly reconciliation captures everything regardless of how many apps you work. Use one mileage-tracking app rather than relying on each platform's partial trip data, since gaps between rides and multi-app driving won't be recorded otherwise. Categorize expenses the same way every month, matching the Schedule C lines, and keep digital copies of receipts for supplies, phone, and hot bags or equipment. Each platform's year-end summary is a starting point, not the full picture, because it only shows what flowed through that app. Clean, unified records turn a chaotic multi-app year into a simple tax filing.