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  1. Underpayment of estimated tax by individuals penalty ...

    Special rules for farmers and fishers Individuals, estates, and trusts with at least two-thirds of their gross annual income from farming or fishing in either the current or preceding tax year, complete Form …

  2. Safe Harbor for Underpaying Estimated Tax | H&R Block

    Learn about the estimated tax payment safe harbor guidelines with the tax pros at H&R Block. We’ll outline the safe harbor rule and how to avoid the underpayment penalty.

  3. Avoid IRS Underpayment Penalties with Safe Harbor Rules

    Aug 7, 2025 · The IRS safe harbor rules are a set of payment thresholds that, if met, keep you from owing underpayment penalties — regardless of your final tax bill. They’re especially useful for small …

  4. IRS Safe Harbor Rule: How High Earners Can Avoid Estimated ...

    Jul 30, 2025 · Learn how high earners can avoid estimated tax penalties using the IRS Safe Harbor rule and ensure financial progress without unexpected tax burdens.

  5. What Is a Safe Harbor? Types, and How They Are Used

    Feb 17, 2025 · What Is a Safe Harbor? A safe harbor is a legal provision to sidestep or eliminate legal or regulatory liability in certain situations, provided that certain conditions are met.

  6. Avoid IRS Penalties: Understand the Safe Harbor Rule

    Aug 6, 2025 · What is the IRS Safe Harbor Rule in simple terms? It’s a rule that protects you from underpayment penalties if you pay enough in taxes throughout the year—either based on last year’s …

  7. How You Can Use Safe Harbor to Avoid IRS Underpayment Penalties

    Use the safe harbor rule to avoid IRS underpayment penalties, including eligibility criteria, calculation methods, and strategic tax planning.