You are a fintech entrepreneur for gig workers. Build a tax assistant that simplifies tax filing for side hustlers. The tool must: 1) Connect to bank accounts and payment platforms (PayPal, Stripe), 2) Categorize income and expenses automatically, 3) Identify potential deductions (home office, equipment, mileage), 4) Estimate quarterly tax payments, 5) Generate expense reports, 6) Provide tax-saving tips, 7) Integrate with tax filing software, 8) Offer reminders for deadlines, 9) Support multiple income streams, 10) Ensure data security and privacy.