diff --git a/apps/web/server/routers/calculate/index.ts b/apps/web/server/routers/calculate/index.ts
index ecb9aff..e6e2595 100644
--- a/apps/web/server/routers/calculate/index.ts
+++ b/apps/web/server/routers/calculate/index.ts
@@ -7,6 +7,7 @@ import { calculate } from '@/api/core/query';
 import type { User } from '@/api/user/types';
 import initializeApollo from '@/apollo/client';
 import { protectedProcedure } from '@/server/procedure';
+import { createTRPCError } from '@/utils/trpc';
 import { QueryClient } from '@tanstack/react-query';
 
 export const calculateRouter = router({
@@ -50,22 +51,26 @@ export const calculateRouter = router({
         input,
       });
 
-      const calculateResult = await calculate(requestData);
+      try {
+        const calculateResult = await calculate(requestData);
 
-      const result = transformCalculateResults({
-        calculateInput: input,
-        requestCalculate: requestData,
-        responseCalculate: calculateResult,
-      });
+        const result = transformCalculateResults({
+          calculateInput: input,
+          requestCalculate: requestData,
+          responseCalculate: calculateResult,
+        });
 
-      // TEMP
-      if (ctx.unlimited) {
-        result.__calculateResult = calculateResult;
+        // TEMP
+        if (ctx.unlimited) {
+          result.__calculateResult = calculateResult;
+        }
+
+        return {
+          data: result,
+          success: true,
+        };
+      } catch (error) {
+        throw createTRPCError(error);
       }
-
-      return {
-        data: result,
-        success: true,
-      };
     }),
 });
diff --git a/apps/web/server/routers/quote/index.ts b/apps/web/server/routers/quote/index.ts
index 65ab388..b224cee 100644
--- a/apps/web/server/routers/quote/index.ts
+++ b/apps/web/server/routers/quote/index.ts
@@ -34,6 +34,7 @@ import * as price from '@/process/price';
 import * as subsidy from '@/process/subsidy';
 import * as supplierAgent from '@/process/supplier-agent';
 import type { CalculationValues } from '@/stores/calculation/values/types';
+import { createTRPCError } from '@/utils/trpc';
 import { QueryClient } from '@tanstack/react-query';
 
 const { DEFAULT_FINGAP_ROW, DEFAULT_KASKO_ROW, DEFAULT_OSAGO_ROW } = insuranceTable;
@@ -119,47 +120,51 @@ export const quoteRouter = router({
         user = { domainName: input.values.user };
       }
 
-      const requestData = await createRequestData({
-        context: {
-          apolloClient,
-          queryClient,
-          ...ctx,
-          user,
-        },
-        input,
-      });
+      try {
+        const requestData = await createRequestData({
+          context: {
+            apolloClient,
+            queryClient,
+            ...ctx,
+            user,
+          },
+          input,
+        });
 
-      const calculateResult = await calculate(requestData);
+        const calculateResult = await calculate(requestData);
 
-      const requestCreateKP = compatRequestCreateKP({
-        domainName: user.domainName,
-        finGAP: input.fingap,
-        insurance: Object.values(input.insurance.values),
-        calculation: {
-          calculationValues: await compatValues(input.values, { apolloClient }),
-          ...calculateResult,
-          preparedPayments: requestData.preparedPayments,
-          additionalData: requestData.additionalData,
-        },
-        elt: input.elt,
-      });
+        const requestCreateKP = compatRequestCreateKP({
+          domainName: user.domainName,
+          finGAP: input.fingap,
+          insurance: Object.values(input.insurance.values),
+          calculation: {
+            calculationValues: await compatValues(input.values, { apolloClient }),
+            ...calculateResult,
+            preparedPayments: requestData.preparedPayments,
+            additionalData: requestData.additionalData,
+          },
+          elt: input.elt,
+        });
 
-      const createKPResult = await createKP(requestCreateKP);
+        const createKPResult = await createKP(requestCreateKP);
 
-      const result = transformCalculateResults({
-        calculateInput: input,
-        requestCalculate: requestData,
-        responseCalculate: calculateResult,
-      });
+        const result = transformCalculateResults({
+          calculateInput: input,
+          requestCalculate: requestData,
+          responseCalculate: calculateResult,
+        });
 
-      if (URL_CRM_DOWNLOADKP) {
-        result.values.downloadKp = URL_CRM_DOWNLOADKP?.concat(createKPResult.offerprintformapi);
+        if (URL_CRM_DOWNLOADKP) {
+          result.values.downloadKp = URL_CRM_DOWNLOADKP?.concat(createKPResult.offerprintformapi);
+        }
+
+        return {
+          data: result,
+          success: true,
+        };
+      } catch (error) {
+        throw createTRPCError(error);
       }
-
-      return {
-        data: result,
-        success: true,
-      };
     }),
 });
 
diff --git a/apps/web/utils/trpc.ts b/apps/web/utils/trpc.ts
new file mode 100644
index 0000000..5fcde23
--- /dev/null
+++ b/apps/web/utils/trpc.ts
@@ -0,0 +1,22 @@
+import { HttpError } from './error';
+import { TRPCError } from '@trpc/server';
+import type { TRPC_ERROR_CODE_KEY } from '@trpc/server/rpc';
+
+export function createTRPCError(error: unknown) {
+  let code: TRPC_ERROR_CODE_KEY = 'INTERNAL_SERVER_ERROR';
+  let message = '';
+
+  if (error instanceof HttpError && error.statusCode === 400) {
+    code = 'BAD_REQUEST';
+  }
+
+  if (error instanceof Error) {
+    message = error.message;
+  }
+
+  return new TRPCError({
+    cause: error,
+    code,
+    message,
+  });
+}