diff --git a/backend/Funding.py b/backend/Funding.py
index 5405943b..58f7891f 100644
--- a/backend/Funding.py
+++ b/backend/Funding.py
@@ -323,7 +323,9 @@ class Funding:
 
     def _calculate_full_project_abs(self, floor_area_band: str, starting_sap_band: str, ending_sap_band: str):
 
-        if starting_sap_band == ending_sap_band:
+        if (starting_sap_band == ending_sap_band) or (
+            starting_sap_band in ["Low_C", "High_C", "Low_B", "High_B", "Low_A", "High_A"]
+        ):
             return 0
 
         data = self.project_scores_matrix[
@@ -584,6 +586,11 @@ class Funding:
             return pps.squeeze()["Cost Savings"]
 
         if measure_type == "suspended_floor_insulation":
+
+            if self.starting_sap_band in ["Low_C", "High_C", "Low_B", "High_B", "Low_A", "High_A"]:
+                # We don't fund SFI for properties starting at C or above
+                return 0
+
             pps = filtered_pps_matrix[filtered_pps_matrix["Measure_Type"] == "UFI"]
             if pps.shape[0] != 1:
                 raise ValueError("Invalid UFI category")
diff --git a/recommendations/optimiser/funding_optimiser.py b/recommendations/optimiser/funding_optimiser.py
index d62b4f46..7150c93c 100644
--- a/recommendations/optimiser/funding_optimiser.py
+++ b/recommendations/optimiser/funding_optimiser.py
@@ -417,6 +417,13 @@ def optimise_with_funding_paths(p, input_measures, housing_type, funding: Fundin
         axis=1
     )
 
+    for _, x in solutions.iterrows():
+        funding._calculate_full_project_abs(
+            floor_area_band=x["floor_area_band"],
+            starting_sap_band=x["starting_band"],
+            ending_sap_band=x["ending_band"],
+        )
+
     rate = funding.get_eco4_abs_rate(is_cavity=p.walls["is_cavity_wall"])
     solutions["full_project_funding"] = solutions["project_score"] * rate
     # if the scheme is not ECO4, we set the funding to 0 with iloc