diff --git a/public/language/en_GB/user.json b/public/language/en_GB/user.json
index 5863d4d67c..6bfb23bb73 100644
--- a/public/language/en_GB/user.json
+++ b/public/language/en_GB/user.json
@@ -137,5 +137,7 @@
 	"info.ban-history": "Recent Ban History",
 	"info.no-ban-history": "This user has never been banned",
 	"info.banned-until": "Banned until %1",
-	"info.banned-permanently": "Banned permanently"
+	"info.banned-permanently": "Banned permanently",
+	"info.banned-reason-label": "Reason",
+	"info.banned-no-reason": "No reason given."
 }
diff --git a/public/less/generics.less b/public/less/generics.less
index d2be83d01e..f94118b299 100644
--- a/public/less/generics.less
+++ b/public/less/generics.less
@@ -112,13 +112,15 @@
 }
 
 .ban-modal {
-	input[type="number"] {
-		width: 7rem;
-		text-align: center;
-		margin-left: 1rem;
-	}
-
 	.form-inline, .form-group {
 		width: 100%;
 	}
+
+	.units {
+		line-height: 5rem;
+	}
+}
+
+.admin .ban-modal .units {
+	line-height: 1.846;
 }
\ No newline at end of file
diff --git a/public/src/admin/manage/users.js b/public/src/admin/manage/users.js
index d570941940..45abb0e254 100644
--- a/public/src/admin/manage/users.js
+++ b/public/src/admin/manage/users.js
@@ -60,7 +60,7 @@ define('admin/manage/users', ['admin/modules/selectable', 'translator'], functio
 
 			bootbox.confirm('Do you really want to ban ' + (uids.length > 1 ? 'these users' : 'this user') + ' <strong>permanently</strong>?', function(confirm) {
 				if (confirm) {
-					socket.emit('user.banUsers', { uids: uids }, done('User(s) banned!', '.ban', true));
+					socket.emit('user.banUsers', { uids: uids, reason: '' }, done('User(s) banned!', '.ban', true));
 				}
 			});
 		});
@@ -91,7 +91,7 @@ define('admin/manage/users', ['admin/modules/selectable', 'translator'], functio
 									return data;
 								}, {});
 								var until = formData.length ? (Date.now() + formData.length * 1000*60*60 * (parseInt(formData.unit, 10) ? 24 : 1)) : 0;
-								socket.emit('user.banUsers', { uids: uids, until: until }, done('User(s) banned!', '.ban', true));
+								socket.emit('user.banUsers', { uids: uids, until: until, reason: formData.reason }, done('User(s) banned!', '.ban', true));
 							}
 						}
 					}
diff --git a/public/src/client/account/header.js b/public/src/client/account/header.js
index 97f062de11..2a6641b152 100644
--- a/public/src/client/account/header.js
+++ b/public/src/client/account/header.js
@@ -126,7 +126,7 @@ define('forum/account/header', [
 							}, {});
 							var until = formData.length ? (Date.now() + formData.length * 1000*60*60 * (parseInt(formData.unit, 10) ? 24 : 1)) : 0;
 
-							socket.emit('user.banUsers', { uids: [ajaxify.data.theirid], until: until }, function(err) {
+							socket.emit('user.banUsers', { uids: [ajaxify.data.theirid], until: until, reason: formData.reason || '' }, function(err) {
 								if (err) {
 									return app.alertError(err.message);
 								}
diff --git a/src/socket.io/user/ban.js b/src/socket.io/user/ban.js
index 41c60411e0..80f701c1a2 100644
--- a/src/socket.io/user/ban.js
+++ b/src/socket.io/user/ban.js
@@ -12,12 +12,13 @@ module.exports = function(SocketUser) {
 		if (Array.isArray(data)) {
 			data = {
 				uids: data,
-				until: 0
+				until: 0,
+				reason: ''
 			};
 		}
 
 		toggleBan(socket.uid, data.uids, function(uid, next) {
-			banUser(data.until || 0, uid, next);
+			banUser(uid, data.until || 0, data.reason || '', next);
 		}, function(err) {
 			if (err) {
 				return callback(err);
@@ -68,7 +69,7 @@ module.exports = function(SocketUser) {
 		], callback);
 	}
 
-	function banUser(until, uid, callback) {
+	function banUser(uid, until, reason, callback) {
 		async.waterfall([
 			function (next) {
 				user.isAdministrator(uid, next);
@@ -77,7 +78,7 @@ module.exports = function(SocketUser) {
 				if (isAdmin) {
 					return next(new Error('[[error:cant-ban-other-admins]]'));
 				}
-				user.ban(uid, until, next);
+				user.ban(uid, until, reason, next);
 			},
 			function (next) {
 				websockets.in('uid_' + uid).emit('event:banned');
diff --git a/src/user/admin.js b/src/user/admin.js
index dd3134e442..2509028b55 100644
--- a/src/user/admin.js
+++ b/src/user/admin.js
@@ -53,13 +53,20 @@ module.exports = function(User) {
 		], callback);
 	};
 
-	User.ban = function(uid, until, callback) {
+	User.ban = function(uid, until, reason, callback) {
 		// "until" (optional) is unix timestamp in milliseconds
+		// "reason" (optional) is a string
 		if (!callback && typeof until === 'function') {
 			callback = until;
 			until = 0;
+			reason = '';
+		} else if (!callback && typeof reason === 'function') {
+			callback = reason;
+			reason = '';
 		}
 
+		var now = Date.now();
+
 		until = parseInt(until, 10);
 		if (isNaN(until)) {
 			return callback(new Error('[[error:ban-expiry-missing]]'));
@@ -67,17 +74,21 @@ module.exports = function(User) {
 
 		var tasks = [
 			async.apply(User.setUserField, uid, 'banned', 1),
-			async.apply(db.sortedSetAdd, 'users:banned', Date.now(), uid),
-			async.apply(db.sortedSetAdd, 'uid:' + uid + ':bans', Date.now(), until)
+			async.apply(db.sortedSetAdd, 'users:banned', now, uid),
+			async.apply(db.sortedSetAdd, 'uid:' + uid + ':bans', now, until)
 		];
 
-		if (until > 0 && Date.now() < until) {
+		if (until > 0 && now < until) {
 			tasks.push(async.apply(db.sortedSetAdd, 'users:banned:expire', until, uid));
 			tasks.push(async.apply(User.setUserField, uid, 'banned:expire', until));
 		} else {
 			until = 0;
 		}
 
+		if (reason) {
+			tasks.push(async.apply(db.sortedSetAdd, 'banned:' + uid + ':reasons', now, reason));
+		}
+
 		async.series(tasks, function (err) {
 			if (err) {
 				return callback(err);
diff --git a/src/user/info.js b/src/user/info.js
index da85e25116..fdd401dcd8 100644
--- a/src/user/info.js
+++ b/src/user/info.js
@@ -13,7 +13,8 @@ module.exports = function(User) {
 			function(next) {
 				async.parallel({
 					flags: async.apply(db.getSortedSetRevRangeWithScores, 'uid:' + uid + ':flag:pids', 0, 19),
-					bans: async.apply(db.getSortedSetRevRangeWithScores, 'uid:' + uid + ':bans', 0,19)
+					bans: async.apply(db.getSortedSetRevRangeWithScores, 'uid:' + uid + ':bans', 0, 19),
+					reasons: async.apply(db.getSortedSetRevRangeWithScores, 'banned:' + uid + ':reasons', 0, 19)
 				}, next);
 			},
 			function(data, next) {
@@ -64,15 +65,22 @@ module.exports = function(User) {
 	}
 
 	function formatBanData(data) {
+		var reasons = data.reasons.reduce(function(memo, cur) {
+				memo[cur.score] = cur.value;
+				return memo;
+			}, {});
+
 		data.bans = data.bans.map(function(banObj) {
 			banObj.until = parseInt(banObj.value, 10);
 			banObj.untilReadable = new Date(banObj.until).toString();
 			banObj.timestamp = parseInt(banObj.score, 10);
 			banObj.timestampReadable = new Date(banObj.score).toString();
 			banObj.timestampISO = new Date(banObj.score).toISOString();
+			banObj.reason = reasons[banObj.score] || '[[user:info.banned-no-reason]]';
 
 			delete banObj.value;
 			delete banObj.score;
+			delete data.reasons;
 
 			return banObj;
 		});
diff --git a/src/views/admin/partials/temporary-ban.tpl b/src/views/admin/partials/temporary-ban.tpl
index a3f032a3b6..da8d02c79f 100644
--- a/src/views/admin/partials/temporary-ban.tpl
+++ b/src/views/admin/partials/temporary-ban.tpl
@@ -1,13 +1,32 @@
-<form class="form-inline">
-	<div class="form-group text-center">
-		<label for="days">Ban Length</label>
-		<input class="form-control" name="length" type="number" min="1" value="1" /><br />
-		<label>Hours</label>
-		<input type="radio" name="unit" value="0" checked />
-		<label>Days</label>
-		<input type="radio" name="unit" value="1" />
+<form class="form">
+	<div class="row">
+		<div class="col-xs-4">
+			<div class="form-group">
+				<label for="length">Ban Length</label>
+				<input class="form-control" id="length" name="length" type="number" min="1" value="1" />
+			</div>
+		</div>
+		<div class="col-xs-8">
+			<div class="form-group">
+				<label for="reason">Reason <span class="text-muted">(Optional)</span></label>
+				<input type="text" class="form-control" id="reason" name="reason" />
+			</div>
+		</div>
+	</div>
+	<div class="row">
+		<div class="col-sm-4 text-center">
+			<div class="form-group units">
+				<label>Hours</label>
+				<input type="radio" name="unit" value="0" checked />
+				&nbsp;&nbsp;
+				<label>Days</label>
+				<input type="radio" name="unit" value="1" />
+			</div>
+		</div>
+		<div class="col-sm-8">
+			<p class="help-block">
+				Enter the length of time for the ban. Note that a time of 0 will be a considered a permanent ban.
+			</p>
+		</div>
 	</div>
-	<p class="help-block">
-		Enter the length of time for the ban. Note that a time of 0 will be a considered a permanent ban.
-	</p>
 </form>
\ No newline at end of file