diff --git a/internal/app/donor_store.go b/internal/app/donor_store.go
index 899d3f2753..414e69fd2b 100644
--- a/internal/app/donor_store.go
+++ b/internal/app/donor_store.go
@@ -198,9 +198,10 @@ func (s *donorStore) Put(ctx context.Context, lpa *page.Lpa) error {
 
 		if len(unsentKeys) > 0 {
 			if err := s.eventClient.Send(ctx, "reduced-fee-requested", reducedFeeRequestedEvent{
-				UID:         lpa.UID,
-				RequestType: lpa.FeeType.String(),
-				Evidence:    unsentKeys,
+				UID:              lpa.UID,
+				RequestType:      lpa.FeeType.String(),
+				Evidence:         unsentKeys,
+				EvidenceDelivery: lpa.EvidenceDelivery.String(),
 			}); err != nil {
 				s.logger.Print(err)
 			} else {
@@ -285,7 +286,8 @@ type previousApplicationLinkedEvent struct {
 }
 
 type reducedFeeRequestedEvent struct {
-	UID         string   `json:"uid"`
-	RequestType string   `json:"requestType"`
-	Evidence    []string `json:"evidence"`
+	UID              string   `json:"uid"`
+	RequestType      string   `json:"requestType"`
+	Evidence         []string `json:"evidence"`
+	EvidenceDelivery string   `json:"evidenceDelivery"`
 }
diff --git a/internal/app/donor_store_test.go b/internal/app/donor_store_test.go
index 8d7493db7f..dddd355a90 100644
--- a/internal/app/donor_store_test.go
+++ b/internal/app/donor_store_test.go
@@ -485,15 +485,17 @@ func TestDonorStorePutWhenReducedFeeRequestedAndUnsentDocuments(t *testing.T) {
 			FeeType:                        pay.HalfFee,
 			Tasks:                          page.Tasks{PayForLpa: actor.PaymentTaskPending},
 			HasSentApplicationUpdatedEvent: true,
+			EvidenceDelivery:               pay.Upload,
 		}).
 		Return(nil)
 
 	eventClient := newMockEventClient(t)
 	eventClient.
 		On("Send", ctx, "reduced-fee-requested", reducedFeeRequestedEvent{
-			UID:         "M-1111",
-			RequestType: "HalfFee",
-			Evidence:    []string{"lpa-uid-evidence-a-uid"},
+			UID:              "M-1111",
+			RequestType:      "HalfFee",
+			Evidence:         []string{"lpa-uid-evidence-a-uid"},
+			EvidenceDelivery: "upload",
 		}).
 		Return(nil)
 
@@ -517,6 +519,7 @@ func TestDonorStorePutWhenReducedFeeRequestedAndUnsentDocuments(t *testing.T) {
 		FeeType:                        pay.HalfFee,
 		Tasks:                          page.Tasks{PayForLpa: actor.PaymentTaskPending},
 		HasSentApplicationUpdatedEvent: true,
+		EvidenceDelivery:               pay.Upload,
 	})
 
 	assert.Nil(t, err)
@@ -591,9 +594,10 @@ func TestDonorStorePutWhenReducedFeeRequestedAndUnsentDocumentsWhenEventClientSe
 	eventClient := newMockEventClient(t)
 	eventClient.
 		On("Send", ctx, "reduced-fee-requested", reducedFeeRequestedEvent{
-			UID:         "M-1111",
-			RequestType: "HalfFee",
-			Evidence:    []string{"lpa-uid-evidence-a-uid"},
+			UID:              "M-1111",
+			RequestType:      "HalfFee",
+			Evidence:         []string{"lpa-uid-evidence-a-uid"},
+			EvidenceDelivery: "upload",
 		}).
 		Return(expectedError)
 
@@ -623,6 +627,7 @@ func TestDonorStorePutWhenReducedFeeRequestedAndUnsentDocumentsWhenEventClientSe
 		FeeType:                        pay.HalfFee,
 		Tasks:                          page.Tasks{PayForLpa: actor.PaymentTaskPending},
 		HasSentApplicationUpdatedEvent: true,
+		EvidenceDelivery:               pay.Upload,
 	})
 
 	assert.Nil(t, err)
@@ -635,9 +640,10 @@ func TestDonorStorePutWhenReducedFeeRequestedAndUnsentDocumentsWhenDocumentStore
 	eventClient := newMockEventClient(t)
 	eventClient.
 		On("Send", ctx, "reduced-fee-requested", reducedFeeRequestedEvent{
-			UID:         "M-1111",
-			RequestType: "HalfFee",
-			Evidence:    []string{"lpa-uid-evidence-a-uid"},
+			UID:              "M-1111",
+			RequestType:      "HalfFee",
+			Evidence:         []string{"lpa-uid-evidence-a-uid"},
+			EvidenceDelivery: "upload",
 		}).
 		Return(nil)
 
@@ -670,6 +676,7 @@ func TestDonorStorePutWhenReducedFeeRequestedAndUnsentDocumentsWhenDocumentStore
 		FeeType:                        pay.HalfFee,
 		Tasks:                          page.Tasks{PayForLpa: actor.PaymentTaskPending},
 		HasSentApplicationUpdatedEvent: true,
+		EvidenceDelivery:               pay.Upload,
 	})
 
 	assert.Nil(t, err)
@@ -859,9 +866,10 @@ func TestEventSchema(t *testing.T) {
 			},
 		},
 		"reduced-fee-requested": reducedFeeRequestedEvent{
-			UID:         "M-0000-0000-0000",
-			RequestType: "NoFee",
-			Evidence:    []string{"key"},
+			UID:              "M-0000-0000-0000",
+			RequestType:      "NoFee",
+			Evidence:         []string{"key"},
+			EvidenceDelivery: "upload",
 		},
 	}
 
diff --git a/internal/app/testdata/reduced-fee-requested.json b/internal/app/testdata/reduced-fee-requested.json
index f55df8aabc..e5840622eb 100644
--- a/internal/app/testdata/reduced-fee-requested.json
+++ b/internal/app/testdata/reduced-fee-requested.json
@@ -20,7 +20,12 @@
       "items": {
         "type": "string"
       }
+    },
+    "evidenceDelivery": {
+      "type": "string",
+      "description": "How the evidence is being delivered to OPG",
+      "enum": ["upload", "post"]
     }
   },
-  "required": ["uid", "requestType", "evidence"]
+  "required": ["uid", "requestType", "evidence", "evidenceDelivery"]
 }