When are they due: You should have them mailed or delivered to the receipient by January 31.
Who do I issue them to?
Per the IRS:
File Form 1099-MISC for each person to whom you have paid in the course of business, at least $10 in royalties or broker payments in lieu of dividends or tax-exempt interest; at least $600 in rents, services (including parts and materials), prizes and awards, other income payments, medical and health care payments, crop insurance proceeds, cash payments for fish (or other aquatic life) you purchase from anyone engaged in the trade or business of catching fish, or, generally, the cash paid from a notional principal contract to an individual, partnership, or estate; any fishing boat proceeds, or gross proceeds of $600, or more paid to an attorney during the year.
Exceptions:Some payments do not have to be reported on Form 1099-MISC, although they may be taxable to the recipient. Payments for which a Form 1099-MISC is not required include all of the following.
- Payments to a corporation except for payments for medical and health care payments (reported in box 6), purchases of fish for cash (box 7), attorneys fees (box 7), gross proceeds paid to an attorney (box 14), substitute payments in lieu of dividents or tax-exempt interest (box 8), payments to a federal executive agency for services (box 7)
- Payments for merchandise, telegrams, telephone, freight, storage and similar items
- Payments of rent to real estate agents. But the real estate agent must use Form 1099-MISC to report the rent paid over to the property owner.
- Wages paid to employees (report on Form W-2, Wage and Tax Statement).
- Military differential wage payments made to employees while they are on active duty in the Armed Forces or other uniformed services (report on Form W-2).
- Business travel allowances paid to employees (may bereportable on Form W-2).
- Cost of current life insurance protection (report on Form W-2 or Form 1099-R, Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc.).
- Payments to a tax-exempt organization including tax-exempt trusts (IRAs, HSAs, Archer MSAs, and Coverdell ESAs), the United States, a state, the District of Columbia, a U.S. possession, or a foreign government.
- Payments made to or for homeowners from the HFA Hardest Hit Fund or the Emergency Homeowners' Loan Program or similar state program (report on Form 1098-MA).
A couple of notes: LLC's are NOT by default corporations. LLC's are actually by default a partnership, and partnership's should be issued 1099's. LLC's can elect to be treated as corporations, so if you are not sure, request your vendor to complete a form W-9.
Veterinarian services are considered medical and health care payments so you should issue 1099's to all of your veterinarians who have received at least $600 for services. See memorandum issued by IRS in October 2013 clarifying this point.