Question: I need a tax solution that offers full audit insurance and quarterly tax estimation to avoid IRS penalties.

If you're looking for a tax solution that offers full audit insurance and quarterly tax estimation, FlyFin is a good choice. FlyFin is an all-in-one tax filing service that uses AI to help freelancers, independent contractors, and small business owners get the most out of their tax deductions. It includes AI-powered tax deduction tracking, CPA review and preparation, full audit insurance, and a quarterly tax estimator. It also connects to more than 2,000 financial institutions, so it's a good, relatively inexpensive option for tax filing.

Another good option is Keeper, an AI-powered tax filing service that automates as much of the process as possible and offers an easy interface. Keeper lets you upload forms, and it has a network of tax pros to review and sign your returns, so it's designed to avoid mistakes. It also has features like bank and credit card connections, expense tracking, and an AI tax assistant for quick questions. It's geared for self-employed people and small businesses, and it offers a simple, all-purpose tax filing service with different pricing levels.