As of 2020, several versions of Form 1099 are used, depending on the nature of the income transaction:
1099-A: Acquisition or Abandonment of Secured Property.
1099-B: Proceeds from Broker and Barter Exchange Transactions.
1099-C: Cancellation of Debt.
1099-CAP: Changes in Corporate Control and Capital Structure.
1099-DIV: Dividends and Distributions.
1099-G: Government Payments.
1099-H: Health Insurance Advance Payments.
1099-INT: Interest Income.
1099-K: Merchant Card and Third Party Network Payments.
1099-LTC: Long-Term Care Benefits.
1099-MISC: Miscellaneous Income.
1099-NEC: Nonemployee Compensation.
1099-OID: Original Issue Discount.
1099-PATR: Taxable Distributions Received From Cooperatives.
1099-Q: Payment from Qualified Education Programs.
1099-R: Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etcetera.
1099-S: Proceeds from Real Estate Transactions.
1099-SA: Distributions From an HSA, Archer MSA, or Medicare Advantage MSA.
1042-S: Foreign Person's U.S. Source Income.
SSA-1099: Social Security Benefit Statement.
SSA-1042S: Social Security Benefit Statement to Nonresident Aliens.
RRB-1099: Payments by the Railroad Retirement Board.
RRB-1099 R: Pension and Annuity Income by the Railroad Retirement Board.
RRB-1042S: Payments by the Railroad Retirement Board to Nonresident Aliens.
Form 5498: IRA Contribution Information.
Form 5498-ESA: Coverdell ESA Contribution Information.
Form 5498-SA: HSA, Archer MSA, or Medicare Advantage MSA Information.