diff --git a/src/modules/accounts/dto/create-account.dto.ts b/src/modules/accounts/dto/create-account.dto.ts
index 717d893..ab34fc4 100644
--- a/src/modules/accounts/dto/create-account.dto.ts
+++ b/src/modules/accounts/dto/create-account.dto.ts
@@ -50,11 +50,11 @@ export class CreateAccountDto {
 
   @ApiProperty({
     example: 2592000,
-    description: 'Expiry in seconds (1 hour - 30 days)',
+    description: 'Expiry in seconds (1 hour - 90 days)',
   })
   @IsNumber()
   @Min(3600) // 1 hour
-  @Max(2592000) // 30 days
+  @Max(7776000) // 90 days
   expiresIn: number;
 
   @ApiProperty({ example: { userId: 'user_123' }, required: false })
diff --git a/src/modules/stellar/stellar.service.ts b/src/modules/stellar/stellar.service.ts
index 95a971e..632c35c 100644
--- a/src/modules/stellar/stellar.service.ts
+++ b/src/modules/stellar/stellar.service.ts
@@ -117,6 +117,12 @@ export class StellarService {
     // Step 2: Initialize the Soroban contract with restrictions
     const expiryLedger = await this.toExpiryLedger(params.expiresIn);
 
+    this.logger.log(
+      `Expiry conversion: expiresIn=${params.expiresIn}s → expiryLedger=${expiryLedger} ` +
+        `(currentLedger=${Math.round(expiryLedger - Math.ceil(params.expiresIn / 5) - EXPIRY_BUFFER_LEDGERS)}, ` +
+        `offset=${expiryLedger - Math.round(expiryLedger - Math.ceil(params.expiresIn / 5) - EXPIRY_BUFFER_LEDGERS)} ledgers)`,
+    );
+
     const contract = new StellarSdk.Contract(params.contractId);
     const sourceAccount = await this.sorobanServer.getAccount(
       fundingKeypair.publicKey(),