Freelancer Resources List - The biggest collection of free resources for freelancers
neo.tax - automated R&D tax credits for startups = extra month of burn
Bonsai - One platform to streamline your entire business
Stripe Atlas Taxes - Help file your business taxes
Startup Stash - A curated directory of 400 resources & tools for startups
Quarterly Tax Calculator for Freelancers - See how much you owe to state and federal in 7 sec