Tax planning tool that calculates estimated quarterly tax payments for self-employed individuals. Freelancers and business owners use it to avoid penalties and manage cash flow effectively.
Freemium: Basic estimates, $10/mo premium + planning tools
Build a quarterly tax estimator with income and deduction inputs. Calculate federal and state estimated taxes, show quarterly payment amounts and due dates. Include safe harbor calculations and penalty avoidance tips. Add payment reminders and tax calendar integration. Focus on getting accurate tax calculations working first - you can add calendar features later.