Which form is used by a partnership to file its annual tax return?

Partnerships use Form 1065 to file their annual tax return. This form is specifically designed for partnerships to report their income, deductions, gains, and losses. It serves as an informational return, meaning that the partnership itself does not pay income tax; instead, the income is passed through to the individual partners, who report it on their personal tax returns.

Each partner receives a Schedule K-1 from the partnership, which details their share of the partnership's income, deductions, and credits. This information is crucial for partners to accurately report their earnings on their individual Form 1040 tax returns.

The other options are for different types of entities or reporting purposes: Form 1060 does not exist, Form 1040 is used by individual taxpayers, and Form 1120 is used by corporations. Understanding the appropriate forms for different business structures is key to accurate tax reporting.