If you are self-employed what can you do to make sure you aren't surprised by how much you owe at the end of the year A. Pay estimated tax quarterly B. Use payroll withholding C. Fill out a W-4 form?

If you are self-employed, the best way to avoid surprises at tax time is to pay estimated tax quarterly (A). This involves calculating and remitting your estimated tax payments throughout the year based on your expected income, which helps you manage your tax liability more effectively. Options B and C, which involve payroll withholding and filling out a W-4 form, are typically used by employees rather than self-employed individuals.