diff --git a/bindings/python/gnucash_core.py b/bindings/python/gnucash_core.py
index c688097f4b..8903f7c555 100644
--- a/bindings/python/gnucash_core.py
+++ b/bindings/python/gnucash_core.py
@@ -49,8 +49,8 @@ from gnucash.gnucash_core_c import gncInvoiceLookup, gncInvoiceGetInvoiceFromTxn
     gnc_search_customer_on_id, gnc_search_bill_on_id , \
     gnc_search_vendor_on_id, gncInvoiceNextID, gncCustomerNextID, \
     gncVendorNextID, gncTaxTableGetTables, gnc_numeric_zero, \
-    gnc_numeric_create, double_to_gnc_numeric, string_to_gnc_numeric, \
-    gnc_numeric_to_string
+    gnc_numeric_create, double_to_gnc_numeric, gnc_numeric_from_string, \
+    gnc_numeric_to_string, gnc_numeric_check
 
 from gnucash.deprecation import (
     deprecated_args_session,
@@ -432,8 +432,8 @@ class GncNumeric(GnuCashCoreClass):
             elif isinstance(arg, float):
                 return double_to_gnc_numeric(arg, GNC_DENOM_AUTO, GNC_HOW_DENOM_FIXED | GNC_HOW_RND_NEVER)
             elif isinstance(arg, str):
-                instance = gnc_numeric_zero()
-                if not string_to_gnc_numeric(arg, instance):
+                instance = gnc_numeric_from_string(arg)
+                if gnc_numeric_check(instance):
                     raise TypeError('Failed to convert to GncNumeric: ' + str(args))
                 return instance
             elif isinstance(arg, GncNumeric):
diff --git a/gnucash/gnome/dialog-fincalc.c b/gnucash/gnome/dialog-fincalc.c
index b6477d44ed..0b7afab19d 100644
--- a/gnucash/gnome/dialog-fincalc.c
+++ b/gnucash/gnome/dialog-fincalc.c
@@ -194,9 +194,8 @@ gui_to_fi (FinCalcDialog *fcd)
     text = gtk_entry_get_text (GTK_ENTRY(entry));
     if (text && *text)
     {
-        gnc_numeric out;
-        gboolean result = string_to_gnc_numeric (text, &out);
-        if (result)
+        gnc_numeric out = gnc_numeric_from_string (text);
+        if (!gnc_numeric_check (out))
             npp = gnc_numeric_convert (out, 1, GNC_HOW_RND_TRUNC);
         else
             npp = gnc_numeric_zero ();
diff --git a/gnucash/import-export/log-replay/gnc-log-replay.c b/gnucash/import-export/log-replay/gnc-log-replay.c
index 68244a4b56..98885753dd 100644
--- a/gnucash/import-export/log-replay/gnc-log-replay.c
+++ b/gnucash/import-export/log-replay/gnc-log-replay.c
@@ -233,12 +233,12 @@ static split_record interpret_split_record( char *record_line)
     }
     if (strlen(tok_ptr = my_strtok(NULL, "\t")) != 0)
     {
-        string_to_gnc_numeric(tok_ptr, &(record.amount));
+        record.amount = gnc_numeric_from_string (tok_ptr);
         record.amount_present = TRUE;
     }
     if (strlen(tok_ptr = my_strtok(NULL, "\t")) != 0)
     {
-        string_to_gnc_numeric(tok_ptr, &(record.value));
+        record.value = gnc_numeric_from_string (tok_ptr);
         record.value_present = TRUE;
     }
     if (strlen(tok_ptr = my_strtok(NULL, "\t")) != 0)
diff --git a/libgnucash/app-utils/gnc-exp-parser.c b/libgnucash/app-utils/gnc-exp-parser.c
index ebca57a74a..9d4545a82d 100644
--- a/libgnucash/app-utils/gnc-exp-parser.c
+++ b/libgnucash/app-utils/gnc-exp-parser.c
@@ -98,10 +98,9 @@ gnc_exp_parser_real_init ( gboolean addPredefined )
             for (key = keys; key && *key; key++)
             {
                 str_value = g_key_file_get_string(key_file, GEP_GROUP_NAME, *key, NULL);
-                if (str_value && string_to_gnc_numeric(str_value, &value))
-                {
+                value = gnc_numeric_from_string (str_value);
+                if (!gnc_numeric_check (value))
                     gnc_exp_parser_set_value (*key, gnc_numeric_reduce (value));
-                }
             }
             g_strfreev(keys);
             g_key_file_free(key_file);
diff --git a/libgnucash/backend/xml/io-gncxml-v1.cpp b/libgnucash/backend/xml/io-gncxml-v1.cpp
index 7791205dde..d7aecc4b18 100644
--- a/libgnucash/backend/xml/io-gncxml-v1.cpp
+++ b/libgnucash/backend/xml/io-gncxml-v1.cpp
@@ -472,6 +472,13 @@ simple_kvp_value_parser_new (sixtp_end_handler end_handler)
 
  */
 
+static gboolean
+string_to_gnc_numeric(const gchar* str, gnc_numeric *n)
+{
+    *n = gnc_numeric_from_string (str);
+    return (!gnc_numeric_check (*n));
+}
+
 /* ------------------------------------------------------------ */
 /* generic type copnversion for kvp types */
 #define KVP_CVT_VALUE(TYPE)                 \
diff --git a/libgnucash/backend/xml/sixtp-dom-parsers.cpp b/libgnucash/backend/xml/sixtp-dom-parsers.cpp
index b1d30d2640..f59a0afd5b 100644
--- a/libgnucash/backend/xml/sixtp-dom-parsers.cpp
+++ b/libgnucash/backend/xml/sixtp-dom-parsers.cpp
@@ -509,8 +509,8 @@ dom_tree_to_gnc_numeric (xmlNodePtr node)
     if (!content)
         return gnc_numeric_zero ();
 
-    gnc_numeric num;
-    if (!string_to_gnc_numeric (content, &num))
+    gnc_numeric num = gnc_numeric_from_string (content);
+    if (gnc_numeric_check (num))
         num = gnc_numeric_zero ();
 
     g_free (content);
diff --git a/libgnucash/backend/xml/sixtp-utils.cpp b/libgnucash/backend/xml/sixtp-utils.cpp
index 0cf032b6ca..b65d547357 100644
--- a/libgnucash/backend/xml/sixtp-utils.cpp
+++ b/libgnucash/backend/xml/sixtp-utils.cpp
@@ -611,7 +611,8 @@ generic_gnc_numeric_end_handler (gpointer data_for_children,
         num = g_new (gnc_numeric, 1);
         if (num)
         {
-            if (string_to_gnc_numeric (txt, num))
+            *num = gnc_numeric_from_string (txt);
+            if (!gnc_numeric_check (*num))
             {
                 ok = TRUE;
                 *result = num;