diff --git a/src/main/kotlin/roomescape/payment/infrastructure/client/v2/TosspaymentClientV2.kt b/src/main/kotlin/roomescape/payment/infrastructure/client/v2/TosspaymentClientV2.kt
index 0d0310f7..35816231 100644
--- a/src/main/kotlin/roomescape/payment/infrastructure/client/v2/TosspaymentClientV2.kt
+++ b/src/main/kotlin/roomescape/payment/infrastructure/client/v2/TosspaymentClientV2.kt
@@ -26,15 +26,19 @@ class TosspaymentClientV2(
     private val cancelClient = CancelClient(objectMapper, tossPaymentClientBuilder.build())
 
     fun confirm(request: PaymentConfirmRequest): PaymentConfirmResponse {
-        log.info { "[TossPaymentClientV2.confirm] 승인 요청: request=$request" }
+        log.info { "[TossPaymentClientV2.confirm] 결제 승인 요청: request=$request" }
 
-        return confirmClient.request(request)
+        return confirmClient.request(request).also {
+            log.info { "[TossPaymentClientV2.confirm] 결제 승인 완료: response=$it" }
+        }
     }
 
     fun cancel(request: PaymentCancelRequestV2): PaymentCancelResponseV2 {
-        log.info { "[TossPaymentClient.cancel] 취소 요청: request=$request" }
+        log.info { "[TossPaymentClient.cancel] 결제 취소 요청: request=$request" }
 
-        return cancelClient.request(request)
+        return cancelClient.request(request).also {
+            log.info { "[TossPaymentClient.cancel] 결제 취소 완료: response=$it" }
+        }
     }
 }
 
@@ -54,8 +58,7 @@ private class ConfirmClient(
         .body(request)
         .retrieve()
         .onStatus(errorHandler)
-        .body(PaymentConfirmResponse::class.java)
-        ?: run {
+        .body(PaymentConfirmResponse::class.java) ?: run {
             log.error { "[TossPaymentConfirmClient.request] 응답 바디 변환 실패" }
             throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
         }
@@ -103,7 +106,7 @@ private class TosspayErrorHandler(
         response: ClientHttpResponse
     ): Nothing {
         val requestType: String = paymentRequestType(url)
-        log.warn { "[TossPaymentClient] $requestType 요청 실패: response: ${toErrorResponse(response)}" }
+        log.warn { "[TossPaymentClient] $requestType 요청 실패: response: ${parseResponse(response)}" }
 
         throw PaymentException(paymentErrorCode(response.statusCode))
     }
@@ -123,7 +126,7 @@ private class TosspayErrorHandler(
         PaymentErrorCode.PAYMENT_PROVIDER_ERROR
     }
 
-    private fun toErrorResponse(response: ClientHttpResponse): TossPaymentErrorResponse {
+    private fun parseResponse(response: ClientHttpResponse): TossPaymentErrorResponse {
         val body = response.body
 
         return objectMapper.readValue(body, TossPaymentErrorResponse::class.java).also {