diff --git a/commands/account/mkdir.go b/commands/account/mkdir.go
new file mode 100644
index 0000000..d245821
--- /dev/null
+++ b/commands/account/mkdir.go
@@ -0,0 +1,39 @@
+package account
+
+import (
+	"errors"
+	"time"
+
+	"github.com/gdamore/tcell"
+
+	"git.sr.ht/~sircmpwn/aerc/widgets"
+	"git.sr.ht/~sircmpwn/aerc/worker/types"
+)
+
+func init() {
+	register("mkdir", Mkdir)
+}
+
+func Mkdir(aerc *widgets.Aerc, args []string) error {
+	if len(args) != 2 {
+		return errors.New("Usage: :mkdir <name>")
+	}
+	acct := aerc.SelectedAccount()
+	if acct == nil {
+		return errors.New("No account selected")
+	}
+	name := args[1]
+	acct.Worker().PostAction(&types.CreateDirectory{
+		Directory: name,
+	}, func(msg types.WorkerMessage) {
+		switch msg := msg.(type) {
+		case *types.Done:
+			aerc.PushStatus("Directory created.", 10*time.Second)
+			acct.Directories().Select(name)
+		case *types.Error:
+			aerc.PushStatus(" "+msg.Error.Error(), 10*time.Second).
+				Color(tcell.ColorDefault, tcell.ColorRed)
+		}
+	})
+	return nil
+}
diff --git a/doc/aerc.1.scd b/doc/aerc.1.scd
index 95ce1ef..229868f 100644
--- a/doc/aerc.1.scd
+++ b/doc/aerc.1.scd
@@ -90,6 +90,9 @@ message list, the message in the message viewer, etc).
 	the current account's outgoing transport configuration, see
 	*aerc-config*(5) for details on configuring outgoing emails.
 
+*mkdir* <name>
+	Creates a new folder for this account and changes to that folder.
+
 *next-folder* <n>, *prev-folder* <n>
 	Cycles to the next (or previous) folder shown in the sidebar, repeated n
 	times (default: 1).