diff --git a/fineract-savings/src/main/java/org/apache/fineract/portfolio/savings/service/SavingsSchedularInterestPoster.java b/fineract-savings/src/main/java/org/apache/fineract/portfolio/savings/service/SavingsSchedularInterestPoster.java
index 6928f730b66..b0908b2123c 100644
--- a/fineract-savings/src/main/java/org/apache/fineract/portfolio/savings/service/SavingsSchedularInterestPoster.java
+++ b/fineract-savings/src/main/java/org/apache/fineract/portfolio/savings/service/SavingsSchedularInterestPoster.java
@@ -63,17 +63,25 @@ public class SavingsSchedularInterestPoster {
     private Collection<SavingsAccountData> savingAccounts;
     private boolean backdatedTxnsAllowedTill;
 
-    @Transactional(isolation = Isolation.READ_UNCOMMITTED, rollbackFor = Exception.class)
+    @Transactional(isolation = Isolation.SERIALIZABLE, rollbackFor = Exception.class)
     public void postInterest() throws JobExecutionException {
         if (!savingAccounts.isEmpty()) {
             List<Throwable> errors = new ArrayList<>();
+            LocalDate currentDate = DateUtils.getBusinessLocalDate();
             for (SavingsAccountData savingsAccountData : savingAccounts) {
                 boolean postInterestAsOn = false;
                 LocalDate transactionDate = null;
                 try {
+                    if (isInterestAlreadyPostedForCurrentPeriod(savingsAccountData, currentDate)) {
+                        log.debug("Interest already posted for savings account {} up to date {}, skipping", savingsAccountData.getId(),
+                                savingsAccountData.getSummary().getInterestPostedTillDate());
+                        continue;
+                    }
                     SavingsAccountData savingsAccountDataRet = savingsAccountWritePlatformService.postInterest(savingsAccountData,
                             postInterestAsOn, transactionDate, backdatedTxnsAllowedTill);
-                    savingsAccountDataList.add(savingsAccountDataRet);
+                    if (hasNewInterestTransactions(savingsAccountDataRet)) {
+                        savingsAccountDataList.add(savingsAccountDataRet);
+                    }
                 } catch (Exception e) {
                     errors.add(e);
                 }
@@ -109,7 +117,6 @@ private void batchUpdateJournalEntries(final List<SavingsAccountData> savingsAcc
             for (SavingsAccountTransactionData savingsAccountTransactionData : savingsAccountTransactionDataList) {
                 if (savingsAccountTransactionData.getId() == null && !MathUtil.isZero(savingsAccountTransactionData.getAmount())) {
                     final String key = savingsAccountTransactionData.getRefNo();
-                    final Boolean isOverdraft = savingsAccountTransactionData.getIsOverdraft();
                     final SavingsAccountTransactionData dataFromFetch = savingsAccountTransactionDataHashMap.get(key);
                     savingsAccountTransactionData.setId(dataFromFetch.getId());
                     if (savingsAccountData.getGlAccountIdForSavingsControl() != 0
@@ -248,4 +255,20 @@ private String batchQueryForTransactionsUpdate() {
                 + "SET is_reversed=?, amount=?, overdraft_amount_derived=?, balance_end_date_derived=?, balance_number_of_days_derived=?, running_balance_derived=?, cumulative_balance_derived=?, is_reversal=?, "
                 + LAST_MODIFIED_DATE_DB_FIELD + " = ?, " + LAST_MODIFIED_BY_DB_FIELD + " = ? " + "WHERE id=?";
     }
+
+    private boolean isInterestAlreadyPostedForCurrentPeriod(SavingsAccountData savingsAccountData, LocalDate currentDate) {
+        LocalDate interestPostedTillDate = savingsAccountData.getSummary().getInterestPostedTillDate();
+        if (interestPostedTillDate == null) {
+            return false;
+        }
+        return interestPostedTillDate.isAfter(currentDate) || interestPostedTillDate.equals(currentDate);
+    }
+
+    private boolean hasNewInterestTransactions(SavingsAccountData savingsAccountData) {
+        if (savingsAccountData.getSavingsAccountTransactionData() == null) {
+            return false;
+        }
+        return savingsAccountData.getSavingsAccountTransactionData().stream()
+                .anyMatch(tx -> tx.getId() == null && !MathUtil.isZero(tx.getAmount()) && tx.isInterestPosting());
+    }
 }