diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
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--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,3 @@
+# Contributing to MAS
+
+Please see the [contributors' guide](https://matrix-org.github.io/matrix-authentication-service/development/contributing.html) in our rendered documentation.
diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
index cce7d387..24c3cab0 100644
--- a/docs/SUMMARY.md
+++ b/docs/SUMMARY.md
@@ -27,5 +27,6 @@
 
 # Development
 
+- [Contributing](./development/contributing.md)
 - [Architecture](./development/architecture.md)
 - [Database](./development/database.md)
diff --git a/docs/development/contributing.md b/docs/development/contributing.md
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+++ b/docs/development/contributing.md
@@ -0,0 +1,8 @@
+# Contributing
+
+This document aims to get you started with contributing to the Matrix Authentication Service!
+
+# 1. Who can contribute to MAS?
+
+Everyone is welcome to contribute code to [matrix.org projects](https://github.com/matrix-org), provided that they are willing to license their contributions under the same license as the project itself. We follow a simple 'inbound=outbound' model for contributions: the act of submitting an 'inbound' contribution means that the contributor agrees to license the code under the same terms as the project's overall 'outbound' license - in our case, this is almost always Apache Software License v2 (see [LICENSE](https://github.com/matrix-org/matrix-authentication-service/blob/main/LICENSE)).
+