diff --git a/project.go b/project.go
index 3b5b9ea..de69a2a 100644
--- a/project.go
+++ b/project.go
@@ -246,6 +246,25 @@ func projectItems(project toggl.Project, arg string) (items []alfred.Item, err e
 		}
 	}
 
+	if isWorkspacePremium(project.Wid) && alfred.FuzzyMatches("billable:", arg) {
+		var item alfred.Item
+
+		updateEntry := project
+		updateEntry.Billable = !project.Billable
+
+		item.Title = "Billable"
+		item.Subtitle = "Update default project's billable flag"
+		item.Autocomplete = "Billable: " + alfred.Stringify(project.Billable)
+		item.Arg = &alfred.ItemArg{
+			Keyword: "projects",
+			Mode:    alfred.ModeDo,
+			Data:    alfred.Stringify(projectCfg{ToUpdate: &updateEntry}),
+		}
+		item.AddCheckBox(project.Billable)
+
+		items = append(items, item)
+	}
+
 	if alfred.FuzzyMatches("timers", arg) {
 		items = append(items, alfred.Item{
 			Title:        "Time entries...",
diff --git a/support.go b/support.go
index 21340af..9fc9ad3 100644
--- a/support.go
+++ b/support.go
@@ -115,6 +115,15 @@ func getClientByID(id int) (client toggl.Client, index int, found bool) {
 	return
 }
 
+func getWorkspaceByID(id int) (workspace toggl.Workspace, index int, found bool) {
+	for i, workspace := range cache.Account.Data.Workspaces {
+		if workspace.ID == id {
+			return workspace, i, true
+		}
+	}
+	return
+}
+
 func findTimersByProjectID(pid int) (entries []toggl.TimeEntry) {
 	for _, entry := range cache.Account.Data.TimeEntries[:] {
 		if entry.Pid == pid {
@@ -189,6 +198,11 @@ func getLatestTimeEntriesForProject(pid int) (matchedArr []toggl.TimeEntry) {
 	return
 }
 
+func isWorkspacePremium(id int) bool {
+	workspace, _, _ := getWorkspaceByID(id)
+	return workspace.Premium
+}
+
 func projectHasTimeEntries(pid int) bool {
 	entries := cache.Account.Data.TimeEntries
 	for i := range entries {
diff --git a/time_entry.go b/time_entry.go
index ae022dc..62b4d5b 100644
--- a/time_entry.go
+++ b/time_entry.go
@@ -358,6 +358,7 @@ type timerCfg struct {
 	Timer    *int             `json:"timer,omitempty"`
 	Property *string          `json:"property,omitempty"`
 	Project  *int             `json:"project,omitempty"`
+	Billable *int             `json:"billable,omitempty"`
 	Tag      *int             `json:"tag,omitempty"`
 	ToStart  *startDesc       `json:"tostart,omitempty"`
 	ToUpdate *toggl.TimeEntry `json:"toupdate,omitempty"`
@@ -404,7 +405,8 @@ func startTimeEntry(desc startDesc) (entry toggl.TimeEntry, err error) {
 	session := toggl.OpenSession(config.APIKey)
 
 	if desc.Pid != 0 {
-		entry, err = session.StartTimeEntryForProject(desc.Description, desc.Pid)
+		project, _, _ := getProjectByID(desc.Pid)
+		entry, err = session.StartTimeEntryForProject(desc.Description, desc.Pid, project.Billable)
 	} else {
 		entry, err = session.StartTimeEntry(desc.Description)
 	}
@@ -661,6 +663,25 @@ func timeEntryItems(entry *toggl.TimeEntry, query string) (items []alfred.Item,
 		}
 	}
 
+	if isWorkspacePremium(entry.Wid) && alfred.FuzzyMatches("billable:", parts[0]) {
+		var item alfred.Item
+
+		updateEntry := entry.Copy()
+		updateEntry.Billable = !entry.Billable
+
+		item.Title = "Billable"
+		item.Subtitle = "Update this entry's billable condition"
+		item.Autocomplete = "Billable: " + alfred.Stringify(entry.Billable)
+		item.Arg = &alfred.ItemArg{
+			Keyword: "timers",
+			Mode:    alfred.ModeDo,
+			Data:    alfred.Stringify(timerCfg{ToUpdate: &updateEntry}),
+		}
+		item.AddCheckBox(entry.Billable)
+
+		items = append(items, item)
+	}
+
 	if alfred.FuzzyMatches("start:", parts[0]) {
 		command := "Start"