diff --git a/share/doc/homebrew/How-to-Create-and-Maintain-a-Tap.md b/share/doc/homebrew/How-to-Create-and-Maintain-a-Tap.md
new file mode 100644
index 0000000000..1cae716f29
--- /dev/null
+++ b/share/doc/homebrew/How-to-Create-and-Maintain-a-Tap.md
@@ -0,0 +1,56 @@
+# How to Create and Maintain a Tap
+Taps are external sources of Homebrew formulae and/or external commands. They
+can be created by anyone to provide their own formulae and/or external commands
+to any Homebrew user.
+
+## Creating a tap
+A tap is usually a git repository available online, but you can use anything as
+long as it’s a protocol that git understands, or even just a directory with
+files in it.
+If hosted on GitHub, we recommend that the repository’s name start with
+`homebrew-`.
+
+Tap formulae follow the same format as the core’s ones, and can be added at the
+repository’s root, or under `Formula` or `HomebrewFormula` subdirectories. We
+recommend the latter options because it makes the repository organisation
+easier to grasp, and top-level files are not mixed with formulae.
+
+See [homebrew-tex](https://github.com/Homebrew/homebrew-tex) for an example of
+a tap with a `Formula` subdirectory.
+
+### Installing
+If it’s on GitHub, users can install any of your formulae with
+`brew install user/repo/formula`. Homebrew will automatically add your
+`github.com/user/homebrew-repo` tap before installing the formula.
+`user/repo/formula` points to the `github.com/user/homebrew-repo/**/formula.rb`
+file here.
+
+If they want to get your tap without installing any formula at the same time,
+users can add it with the [`brew tap` command](brew-tap.md).
+
+If it’s on GitHub, they can use `brew tap user/repo`, where `user` is your
+GitHub username and `homebrew-repo` your repository.
+
+If it’s hosted outside of GitHub, they have to use `brew tap user/repo <url>`,
+where `user` and `repo` will be used to refer to your tap and `<url>` is your
+Git clone URL.
+
+Users can then install your formulae either with `brew install foo` if there’s
+no core formula with the same name, or with `brew install user/repo/foo` to
+avoid conflicts.
+
+## Maintaining a tap
+A tap is just a git repository so you don’t have to do anything specific when
+making modifications apart from committing and pushing your changes.
+
+### Updating
+Once your tap installed, Homebrew will update it each time an user runs
+`brew update`. Outdated formulae will be upgraded when an user runs
+`brew upgrade`, like core formulae.
+
+## External commands
+You can provide your tap users with custom `brew` commands by adding them in a
+`cmd` subdirectory. [Read more on external commands](External-Commands.md).
+
+See [homebrew-aliases](https://github.com/Homebrew/homebrew-aliases) for an
+example of a tap with external commands.