diff --git a/src/cargopacket.cpp b/src/cargopacket.cpp
index e43034bcb2..06845dac4d 100644
--- a/src/cargopacket.cpp
+++ b/src/cargopacket.cpp
@@ -292,6 +292,17 @@ void CargoPacket::PayDeferredPayments()
 	}
 }
 
+/* static */ bool CargoPacket::ValidateDeferredCargoPayments()
+{
+	for (auto &it : _cargo_packet_deferred_payments) {
+		uint id = it.first >> 32;
+		const CargoPacket *cp = CargoPacket::GetIfValid(id);
+		if (!cp) return false;
+		if (!(cp->flags & CPF_HAS_DEFERRED_PAYMENT)) return false;
+	}
+	return true;
+}
+
 /*
  *
  * Cargo list implementation
diff --git a/src/cargopacket.h b/src/cargopacket.h
index 5217235464..0f034b859e 100644
--- a/src/cargopacket.h
+++ b/src/cargopacket.h
@@ -204,6 +204,7 @@ public:
 	static void InvalidateAllFrom(SourceType src_type, SourceID src);
 	static void InvalidateAllFrom(StationID sid);
 	static void AfterLoad();
+	static bool ValidateDeferredCargoPayments();
 };
 
 /**
diff --git a/src/openttd.cpp b/src/openttd.cpp
index 06953abde2..e76ca6c6e3 100644
--- a/src/openttd.cpp
+++ b/src/openttd.cpp
@@ -75,6 +75,7 @@
 #include "tbtr_template_vehicle.h"
 #include "string_func_extra.h"
 #include "industry.h"
+#include "cargopacket.h"
 
 #include "linkgraph/linkgraphschedule.h"
 #include "tracerestrict.h"
@@ -1608,6 +1609,8 @@ void CheckCaches(bool force_check, std::function<void(const char *)> log)
 	if (!TraceRestrictSlot::ValidateVehicleIndex()) CCLOG("Trace restrict slot vehicle index validation failed");
 	TraceRestrictSlot::ValidateSlotOccupants(log);
 
+	if (!CargoPacket::ValidateDeferredCargoPayments()) CCLOG("Cargo packets deferred payments validation failed");
+
 #undef CCLOG
 }