diff --git a/erpnext/accounts/doctype/pos_invoice_merge_log/pos_invoice_merge_log.py b/erpnext/accounts/doctype/pos_invoice_merge_log/pos_invoice_merge_log.py
index 4f26ed43db..28bd10283e 100644
--- a/erpnext/accounts/doctype/pos_invoice_merge_log/pos_invoice_merge_log.py
+++ b/erpnext/accounts/doctype/pos_invoice_merge_log/pos_invoice_merge_log.py
@@ -114,6 +114,8 @@ class POSInvoiceMergeLog(Document):
 	def merge_pos_invoice_into(self, invoice, data):
 		items, payments, taxes = [], [], []
 		loyalty_amount_sum, loyalty_points_sum = 0, 0
+		rounding_adjustment, base_rounding_adjustment = 0, 0
+		rounded_total, base_rounded_total = 0, 0
 		for doc in data:
 			map_doc(doc, invoice, table_map={ "doctype": invoice.doctype })
 
@@ -162,6 +164,11 @@ class POSInvoiceMergeLog(Document):
 						found = True
 				if not found:
 					payments.append(payment)
+			rounding_adjustment += doc.rounding_adjustment
+			rounded_total += doc.rounded_total
+			base_rounding_adjustment += doc.rounding_adjustment
+			base_rounded_total += doc.rounded_total
+
 
 		if loyalty_points_sum:
 			invoice.redeem_loyalty_points = 1
@@ -171,6 +178,10 @@ class POSInvoiceMergeLog(Document):
 		invoice.set('items', items)
 		invoice.set('payments', payments)
 		invoice.set('taxes', taxes)
+		invoice.set('rounding_adjustment',rounding_adjustment)
+		invoice.set('rounding_adjustment',base_rounding_adjustment)
+		invoice.set('base_rounded_total',base_rounded_total)
+		invoice.set('rounded_total',rounded_total)
 		invoice.additional_discount_percentage = 0
 		invoice.discount_amount = 0.0
 		invoice.taxes_and_charges = None
diff --git a/erpnext/controllers/taxes_and_totals.py b/erpnext/controllers/taxes_and_totals.py
index 70cc8a58bf..7e7f598bc4 100644
--- a/erpnext/controllers/taxes_and_totals.py
+++ b/erpnext/controllers/taxes_and_totals.py
@@ -260,7 +260,9 @@ class calculate_taxes_and_totals(object):
 		self.doc.round_floats_in(self.doc, ["total", "base_total", "net_total", "base_net_total"])
 
 	def calculate_taxes(self):
-		self.doc.rounding_adjustment = 0
+		if not self.doc.get('is_consolidated'):
+			self.doc.rounding_adjustment = 0
+
 		# maintain actual tax rate based on idx
 		actual_tax_dict = dict([[tax.idx, flt(tax.tax_amount, tax.precision("tax_amount"))]
 			for tax in self.doc.get("taxes") if tax.charge_type == "Actual"])
@@ -312,7 +314,9 @@ class calculate_taxes_and_totals(object):
 
 					# adjust Discount Amount loss in last tax iteration
 					if i == (len(self.doc.get("taxes")) - 1) and self.discount_amount_applied \
-						and self.doc.discount_amount and self.doc.apply_discount_on == "Grand Total":
+						and self.doc.discount_amount \
+						and self.doc.apply_discount_on == "Grand Total" \
+						and not self.doc.get('is_consolidated'):
 							self.doc.rounding_adjustment = flt(self.doc.grand_total
 								- flt(self.doc.discount_amount) - tax.total,
 								self.doc.precision("rounding_adjustment"))
@@ -405,11 +409,16 @@ class calculate_taxes_and_totals(object):
 				self.doc.rounding_adjustment = diff
 
 	def calculate_totals(self):
-		self.doc.grand_total = flt(self.doc.get("taxes")[-1].total) + flt(self.doc.rounding_adjustment) \
-			if self.doc.get("taxes") else flt(self.doc.net_total)
+		if self.doc.get("taxes"):
+			self.doc.grand_total = flt(self.doc.get("taxes")[-1].total) + flt(self.doc.rounding_adjustment)
+		else:
+			self.doc.grand_total = flt(self.doc.net_total)
 
-		self.doc.total_taxes_and_charges = flt(self.doc.grand_total - self.doc.net_total
+		if self.doc.get("taxes"):
+			self.doc.total_taxes_and_charges = flt(self.doc.grand_total - self.doc.net_total
 			- flt(self.doc.rounding_adjustment), self.doc.precision("total_taxes_and_charges"))
+		else:
+			self.doc.total_taxes_and_charges = 0.0
 
 		self._set_in_company_currency(self.doc, ["total_taxes_and_charges", "rounding_adjustment"])
 
@@ -446,19 +455,20 @@ class calculate_taxes_and_totals(object):
 					self.doc.total_net_weight += d.total_weight
 
 	def set_rounded_total(self):
-		if self.doc.meta.get_field("rounded_total"):
-			if self.doc.is_rounded_total_disabled():
-				self.doc.rounded_total = self.doc.base_rounded_total = 0
-				return
+		if not self.doc.get('is_consolidated'):
+			if self.doc.meta.get_field("rounded_total"):
+				if self.doc.is_rounded_total_disabled():
+					self.doc.rounded_total = self.doc.base_rounded_total = 0
+					return
 
-			self.doc.rounded_total = round_based_on_smallest_currency_fraction(self.doc.grand_total,
-				self.doc.currency, self.doc.precision("rounded_total"))
+				self.doc.rounded_total = round_based_on_smallest_currency_fraction(self.doc.grand_total,
+					self.doc.currency, self.doc.precision("rounded_total"))
 
-			#if print_in_rate is set, we would have already calculated rounding adjustment
-			self.doc.rounding_adjustment += flt(self.doc.rounded_total - self.doc.grand_total,
-				self.doc.precision("rounding_adjustment"))
+				#if print_in_rate is set, we would have already calculated rounding adjustment
+				self.doc.rounding_adjustment += flt(self.doc.rounded_total - self.doc.grand_total,
+					self.doc.precision("rounding_adjustment"))
 
-			self._set_in_company_currency(self.doc, ["rounding_adjustment", "rounded_total"])
+				self._set_in_company_currency(self.doc, ["rounding_adjustment", "rounded_total"])
 
 	def _cleanup(self):
 		if not self.doc.get('is_consolidated'):