This publication provides supplemental federal income tax information for partnerships and partners. It supplements the information provided in the Instructions for Form 1065, U. S. Return of Partnership Income, and the Partner's Instructions for Schedule K-1 (Form 1065). Generally, a partnership doesn't pay tax on its income but “passes through” any profits or losses to its partners. Partners must include partnership items on their tax returns. For a discussion of business expenses a partnership can deduct, see Pub. 535, Business Expenses. Members of oil and gas partnerships should read about the deduction for depletion in chapter 9 of that publication. For tax years beginning before 2018, certain partnerships must have a tax matters partner (TMP) who is also a general partner. The TMP has been replaced with partnership representative for partnership tax years beginning after 2017. Each partnership must designate a partnership representative unless the partnership has made a valid election out of the centralized partnership audit regime. See Designated partnership representative in the Form 1065 instructions and Regulations section 301.6223-1. Withholding on foreign partner or firm. A partnership that has foreign partners or engages in certain transactions with foreign persons may have one (or more) of the following obligations. Fixed or determinable annual or periodical (FDAP) income. A partnership may have to withhold tax on distributions to a foreign partner or a foreign partner’s distributive share when it earns income not effectively connected with a U.S. trade or business. A partnership may also have to withhold on payments to a foreign person of FDAP income not effectively connected with a U.S. trade or business. See section 1441 or 1442 of the Internal Revenue Code. Withholding under the Foreign Investment in Real Property Tax Act (FIRPTA). If a partnership acquires a U.S. real property interest from a foreign person or firm, the partnership may have to withhold tax on the amount it pays for the property (including cash, the fair market value of other property, and any assumed liability). See section 1445 of the Internal Revenue Code.Withholding on foreign partner’s effectively connected taxable income (ECTI). If a partnership has income effectively connected with a trade or business in the United States (including gain on the disposition of a U.S. real property interest), it must withhold on the ECTI allocable to its foreign partners. See section 1446(a) of the Internal Revenue Code. Withholding on foreign partner’s sale of a partnership interest. A purchaser of a partnership interest, which may include the partnership itself, may have to withhold tax on the amount realized by a foreign partner on the sale for that partnership interest if the partnership is engaged in a trade or business in the United States. See section 1446(f) of the Internal Revenue Code. Withholding under the Foreign Account Tax Compliance Act (FATCA). A partnership may have to withhold tax on distributions to a foreign partner of a foreign partner’s distributive share when it earns withholdable payments. A partnership may also have to withhold on withholdable payments that it makes to a foreign entity. See sections 1471 through 1474 of the Internal Revenue Code. A partnership that has a duty to withhold but fails to withhold may be held liable for the tax, applicable penalties, and interest. See section 1461 of the Internal Revenue Code