diff --git a/clearing-parent/balance-service/src/main/java/ru/spcex/clearing/balance/service/AccountBalanceService.java b/clearing-parent/balance-service/src/main/java/ru/spcex/clearing/balance/service/AccountBalanceService.java
index 20b358cdc..c74026395 100644
--- a/clearing-parent/balance-service/src/main/java/ru/spcex/clearing/balance/service/AccountBalanceService.java
+++ b/clearing-parent/balance-service/src/main/java/ru/spcex/clearing/balance/service/AccountBalanceService.java
@@ -98,6 +98,7 @@ public class AccountBalanceService {
 
     public void updateAccountBalanceByClearing(AccountBalanceClearingRequest req) {
         ClearingCategory category = getClearingCategoryByCompanyId(req.getCompanyId());
+        req.setFirstLegAmount(safeBD(req.getFirstLegAmount()));
         if (category.equals(ClearingCategory.I)) {
             updateAccountCategoryIClrn(req.getAccountId(), req.getCompanyId(), req.getFirstLegAmount());
             updateAccountCategoryITran(req.getFirstLegAmount());
@@ -118,9 +119,10 @@ public class AccountBalanceService {
 
     private void updateAccountCategoryIClrn(Long accountId, Long companyId, BigDecimal firstLegAmount) {
         AccountBalance accountBalance = loadAccountBalance(accountId, companyId, AccountType.Clrn);
-        BigDecimal previousFreeBalanceAmount = accountBalance.getFreeBalanceAmount();
-        BigDecimal previousChangeBalanceAmount = accountBalance.getChangeBalanceAmount();
-        BigDecimal previousBalanceAmount = accountBalance.getBalanceAmount();
+        log.trace("updating AccountBalance {} I CLRN", accountBalance.getId());
+        BigDecimal previousFreeBalanceAmount = safeBD(accountBalance.getFreeBalanceAmount());
+        BigDecimal previousChangeBalanceAmount = safeBD(accountBalance.getChangeBalanceAmount());
+        BigDecimal previousBalanceAmount = safeBD(accountBalance.getBalanceAmount());
         accountBalance.setFreeBalanceAmount(previousFreeBalanceAmount.subtract(firstLegAmount));
         accountBalance.setChangeBalanceAmount(previousChangeBalanceAmount.subtract(firstLegAmount));
         accountBalance.setBalanceAmount(previousBalanceAmount.subtract(firstLegAmount));
@@ -131,7 +133,8 @@ public class AccountBalanceService {
 
     private void updateAccountCategoryITran(BigDecimal firstLegAmount) {
         AccountBalance accountBalance = loadAccountBalance(AccountType.Tran);
-        BigDecimal previousDebitAmount = accountBalance.getDebitAmount();
+        log.trace("updating AccountBalance {} I TRAN", accountBalance.getId());
+        BigDecimal previousDebitAmount = safeBD(accountBalance.getDebitAmount());
         accountBalance.setDebitAmount(previousDebitAmount.add(firstLegAmount.abs()));
         accountBalance.setUpdated(Instant.now());
         log.trace("updateAccountCategoryITran: {}", accountBalance.getId());
@@ -140,9 +143,10 @@ public class AccountBalanceService {
 
     private void updateAccountCategoryVInfo(Long accountId, Long companyId, BigDecimal firstLegAmount) {
         AccountBalance accountBalance = loadAccountBalance(accountId, companyId, AccountType.Info);
-        BigDecimal previousFreeBalanceAmount = accountBalance.getFreeBalanceAmount();
-        BigDecimal changeBalanceAmount = accountBalance.getChangeBalanceAmount();
-        BigDecimal balanceAmount = accountBalance.getBalanceAmount();
+        log.trace("updating AccountBalance {} V INFO", accountBalance.getId());
+        BigDecimal previousFreeBalanceAmount = safeBD(accountBalance.getFreeBalanceAmount());
+        BigDecimal changeBalanceAmount = safeBD(accountBalance.getChangeBalanceAmount());
+        BigDecimal balanceAmount = safeBD(accountBalance.getBalanceAmount());
         accountBalance.setFreeBalanceAmount(previousFreeBalanceAmount.subtract(firstLegAmount));
         accountBalance.setChangeBalanceAmount(changeBalanceAmount.subtract(firstLegAmount));
         accountBalance.setBalanceAmount(balanceAmount.subtract(firstLegAmount));
@@ -153,9 +157,10 @@ public class AccountBalanceService {
 
     private void updateAccountCategoryVAnlt(BigDecimal firstLegAmount) {
         AccountBalance accountBalance = loadAccountBalance(AccountType.Anlt);
-        BigDecimal previousFreeBalanceAmount = accountBalance.getFreeBalanceAmount();
-        BigDecimal previousChangeBalanceAmount = accountBalance.getChangeBalanceAmount();
-        BigDecimal previousBalanceAmount = accountBalance.getBalanceAmount();
+        log.trace("updating AccountBalance {} V ANLT", accountBalance.getId());
+        BigDecimal previousFreeBalanceAmount = safeBD(accountBalance.getFreeBalanceAmount());
+        BigDecimal previousChangeBalanceAmount = safeBD(accountBalance.getChangeBalanceAmount());
+        BigDecimal previousBalanceAmount = safeBD(accountBalance.getBalanceAmount());
         accountBalance.setFreeBalanceAmount(previousFreeBalanceAmount.subtract(firstLegAmount));
         accountBalance.setChangeBalanceAmount(previousChangeBalanceAmount.subtract(firstLegAmount));
         accountBalance.setBalanceAmount(previousBalanceAmount.subtract(firstLegAmount));
@@ -166,7 +171,8 @@ public class AccountBalanceService {
 
     private void updateAccountCategoryBClrn(Long accountId, Long companyId, BigDecimal firstLegAmount) {
         AccountBalance accountBalance = loadAccountBalance(accountId, companyId, AccountType.Clrn);
-        BigDecimal debitAmount = accountBalance.getDebitAmount();
+        log.trace("updating AccountBalance {} B CLRN", accountBalance.getId());
+        BigDecimal debitAmount = safeBD(accountBalance.getDebitAmount());
         accountBalance.setDebitAmount(plus(debitAmount, firstLegAmount.abs()));
         accountBalance.setUpdated(Instant.now());
         log.trace("updateAccountCategoryBClrn: {}", accountBalance.getId());
@@ -186,4 +192,8 @@ public class AccountBalanceService {
                         "accountType", type.getKey())
         );
     }
+
+    private BigDecimal safeBD(BigDecimal bd) {
+        return bd == null ? BigDecimal.ZERO : bd;
+    }
 }