system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does the IRS name their forms?

1040, 990-N, 1099-K, W-2... Try as I might, I can't find any information about how the IRS names their forms. What is their naming convention? Do the form names base themselves on citation numbers in tax code, or what?
gpt
Probably sequential, it's just that the public never sees the in-between numbers, and/or they've been canceled. Some of the older forms (W-...) might be from a different scheme. The suffixes are variations of a common basic form for the same/similar purpose.