diff --git a/app/Api/V1/Controllers/Models/Transaction/ShowController.php b/app/Api/V1/Controllers/Models/Transaction/ShowController.php
index 03749f831a..b7c63b9520 100644
--- a/app/Api/V1/Controllers/Models/Transaction/ShowController.php
+++ b/app/Api/V1/Controllers/Models/Transaction/ShowController.php
@@ -80,7 +80,7 @@ class ShowController extends Controller
             ->setPage($this->parameters->get('page'))
             // set types of transactions to return.
             ->setTypes($types);
-        if (null !== $this->parameters->get('start') && null !== $this->parameters->get('end')) {
+        if (null !== $this->parameters->get('start') || null !== $this->parameters->get('end')) {
             $collector->setRange($this->parameters->get('start'), $this->parameters->get('end'));
         }
         $paginator = $collector->getPaginatedGroups();
diff --git a/app/Helpers/Collector/Extensions/TimeCollection.php b/app/Helpers/Collector/Extensions/TimeCollection.php
index bfb438e182..3908686d69 100644
--- a/app/Helpers/Collector/Extensions/TimeCollection.php
+++ b/app/Helpers/Collector/Extensions/TimeCollection.php
@@ -819,22 +819,28 @@ trait TimeCollection
     /**
      * Set the start and end time of the results to return.
      *
-     * @param Carbon $start
-     * @param Carbon $end
+     * Can either or both be NULL
+     *
+     * @param Carbon|null $start
+     * @param Carbon|null $end
      *
      * @return GroupCollectorInterface
      */
-    public function setRange(Carbon $start, Carbon $end): GroupCollectorInterface
+    public function setRange(?Carbon $start, ?Carbon $end): GroupCollectorInterface
     {
-        if ($end < $start) {
+        if (null !== $start && null !== $end && $end < $start) {
             [$start, $end] = [$end, $start];
         }
         // always got to end of day / start of day for ranges.
-        $startStr = $start->format('Y-m-d 00:00:00');
-        $endStr   = $end->format('Y-m-d 23:59:59');
+        $startStr = $start?->format('Y-m-d 00:00:00');
+        $endStr   = $end?->format('Y-m-d 23:59:59');
 
-        $this->query->where('transaction_journals.date', '>=', $startStr);
-        $this->query->where('transaction_journals.date', '<=', $endStr);
+        if (null !== $start) {
+            $this->query->where('transaction_journals.date', '>=', $startStr);
+        }
+        if (null !== $end) {
+            $this->query->where('transaction_journals.date', '<=', $endStr);
+        }
 
         return $this;
     }
diff --git a/config/firefly.php b/config/firefly.php
index 6689d567b0..f440871842 100644
--- a/config/firefly.php
+++ b/config/firefly.php
@@ -112,7 +112,7 @@ return [
         // see cer.php for exchange rates feature flag.
     ],
     'version'                      => '6.0.24',
-    'api_version'                  => '2.0.8',
+    'api_version'                  => '2.0.9',
     'db_version'                   => 20,
 
     // generic settings