A private foundation can be a powerful way to organize long-term charitable giving, but it also comes with specific governance, tax filing, recordkeeping, and compliance responsibilities. This beginner’s guide explains what private foundations are, how they differ from public charities, the rules they must follow, and why many foundations outsource accounting and grants management to stay organized and focused on their mission.

Private foundation tax rules can be complex, with requirements covering excise taxes, unrelated business income, self-dealing, minimum distributions, and annual reporting. This overview breaks down the key tax obligations private foundations need to understand so they can stay compliant, avoid costly penalties, and keep their charitable work focused on long-term impact.

Private foundations that fall short of their annual 5% distribution requirement may have an “underpayment,” which can increase the following year’s payout obligation and potentially trigger IRS penalties if not corrected on time. This guide explains how underpayments happen, why regular grant monitoring matters, and how careful planning can help foundations stay compliant while continuing to support their charitable mission.

Private foundations play a vital role in philanthropy, providing financial support to a variety of charitable causes. To ensure that these foundations fulfill their charitable missions, the IRS established the 5% rule. In this blog post, we'll explore the history of this rule and delve into how it's calculated.