fix: incorrect amount based on payment days in timesheet salary slip (#28884)

erpnext/hr/doctype/salary_slip/salary_slip.py

@@ -303,11 +303,11 @@ class SalarySlip(TransactionBase):
 
 		if self.salary_structure:
 			self.calculate_component_amounts("deductions")
-		
+
 		self.set_loan_repayment()
 		self.set_component_amounts_based_on_payment_days()
 		self.set_net_pay()
-	
+
 	def set_net_pay(self):
 		self.total_deduction = self.get_component_totals("deductions")
 		self.net_pay = flt(self.gross_pay) - (flt(self.total_deduction) + flt(self.total_loan_repayment))
@@ -519,7 +519,7 @@ class SalarySlip(TransactionBase):
 		# Total taxable earnings including additional and other incomes
 		total_taxable_earnings = previous_taxable_earnings + current_structured_taxable_earnings + future_structured_taxable_earnings \
 			+ current_additional_earnings + other_incomes + unclaimed_taxable_benefits - total_exemption_amount
-		
+
 		# Total taxable earnings without additional earnings with full tax
 		total_taxable_earnings_without_full_tax_addl_components = total_taxable_earnings - current_additional_earnings_with_full_tax
 
@@ -527,7 +527,7 @@ class SalarySlip(TransactionBase):
 		total_structured_tax_amount = self.calculate_tax_by_tax_slab(
 			total_taxable_earnings_without_full_tax_addl_components, tax_slab)
 		current_structured_tax_amount = (total_structured_tax_amount - previous_total_paid_taxes) / remaining_sub_periods
-		
+
 		# Total taxable earnings with additional earnings with full tax
 		full_tax_on_additional_earnings = 0.0
 		if current_additional_earnings_with_full_tax:
@@ -563,7 +563,7 @@ class SalarySlip(TransactionBase):
 			select sum(sd.amount)
 			from
 				`tabSalary Detail` sd join `tabSalary Slip` ss on sd.parent=ss.name
-			where 
+			where
 				sd.parentfield='earnings'
 				and sd.is_tax_applicable=1
 				and is_flexible_benefit=0
@@ -676,9 +676,11 @@ class SalarySlip(TransactionBase):
 
 	def get_amount_based_on_payment_days(self, row, joining_date, relieving_date):
 		amount, additional_amount = row.amount, row.additional_amount
+		timesheet_component = frappe.db.get_value("Salary Structure", self.salary_structure, "salary_component")
+
 		if (self.salary_structure and
-			cint(row.depends_on_payment_days) and cint(self.total_working_days) and
-			(not self.salary_slip_based_on_timesheet or
+			cint(row.depends_on_payment_days) and cint(self.total_working_days)
+			and (row.salary_component != timesheet_component or
 				getdate(self.start_date) < joining_date or
 				(relieving_date and getdate(self.end_date) > relieving_date)
 			)):
@@ -687,7 +689,7 @@ class SalarySlip(TransactionBase):
 			amount = flt((flt(row.default_amount) * flt(self.payment_days)
 				/ cint(self.total_working_days)), row.precision("amount")) + additional_amount
 
-		elif not self.payment_days and not self.salary_slip_based_on_timesheet and cint(row.depends_on_payment_days):
+		elif not self.payment_days and row.salary_component != timesheet_component and cint(row.depends_on_payment_days):
 			amount, additional_amount = 0, 0
 		elif not row.amount:
 			amount = flt(row.default_amount) + flt(row.additional_amount)
@@ -782,7 +784,7 @@ class SalarySlip(TransactionBase):
 
 			if flt(d.max_taxable_income) and flt(d.max_taxable_income) < annual_taxable_earning:
 				continue
-			
+
 			tax_amount += tax_amount * flt(d.percent) / 100
 
 		return tax_amount

erpnext/hr/doctype/salary_slip/test_salary_slip.py

@@ -115,6 +115,41 @@ class TestSalarySlip(unittest.TestCase):
 		frappe.db.set_value("Employee", frappe.get_value("Employee",
 			{"employee_name":"test_employee@salary.com"}, "name"), "status", "Active")
 
+	def test_payment_days_in_salary_slip_based_on_timesheet(self):
+		from erpnext.projects.doctype.timesheet.test_timesheet import (
+			make_salary_structure_for_timesheet,
+			make_timesheet,
+		)
+		from erpnext.projects.doctype.timesheet.timesheet import (
+			make_salary_slip as make_salary_slip_for_timesheet,
+		)
+
+		# Holidays included in working days
+		frappe.db.set_value("HR Settings", None, "include_holidays_in_total_working_days", 0)
+
+		emp = make_employee("test_employee_timesheet1@salary.com", company=erpnext.get_default_company())
+		frappe.db.set_value("Employee", emp, {"relieving_date": None, "status": "Active"})
+
+		# salary structure based on timesheet
+		make_salary_structure_for_timesheet(emp)
+		timesheet = make_timesheet(emp, simulate=True)
+		salary_slip = make_salary_slip_for_timesheet(timesheet.name)
+		salary_slip.start_date = get_first_day(nowdate())
+		salary_slip.end_date = get_last_day(nowdate())
+		salary_slip.save()
+		salary_slip.submit()
+
+		no_of_days = self.get_no_of_days()
+		days_in_month = no_of_days[0]
+		no_of_holidays = no_of_days[1]
+
+		self.assertEqual(salary_slip.payment_days, days_in_month - no_of_holidays)
+
+		# gross pay calculation based on attendance (payment days)
+		gross_pay = 78100 - ((78000 / (days_in_month - no_of_holidays)) * flt(salary_slip.leave_without_pay))
+
+		self.assertEqual(salary_slip.gross_pay, flt(gross_pay, 2))
+
 	def test_employee_salary_slip_read_permission(self):
 		make_employee("test_employee@salary.com")
 
@@ -175,7 +210,7 @@ class TestSalarySlip(unittest.TestCase):
 		# as per assigned salary structure 40500 in monthly salary so 236000*5/100/12
 		frappe.db.sql("""delete from `tabPayroll Period`""")
 		frappe.db.sql("""delete from `tabSalary Component`""")
-	
+
 		payroll_period = create_payroll_period()
 
 		create_tax_slab(payroll_period, allow_tax_exemption=True)

erpnext/projects/doctype/timesheet/test_timesheet.py

@@ -20,10 +20,6 @@ class TestTimesheet(unittest.TestCase):
 		for dt in ["Salary Slip", "Salary Structure", "Salary Structure Assignment", "Timesheet"]:
 			frappe.db.sql("delete from `tab%s`" % dt)
 
-		if not frappe.db.exists("Salary Component", "Timesheet Component"):
-			frappe.get_doc({"doctype": "Salary Component", "salary_component": "Timesheet Component"}).insert()
-
-
 	def test_timesheet_billing_amount(self):
 		make_salary_structure_for_timesheet("_T-Employee-00001")
 		timesheet = make_timesheet("_T-Employee-00001", simulate=True, billable=1)
@@ -177,6 +173,9 @@ def make_salary_structure_for_timesheet(employee):
 	salary_structure_name = "Timesheet Salary Structure Test"
 	frequency = "Monthly"
 
+	if not frappe.db.exists("Salary Component", "Timesheet Component"):
+		frappe.get_doc({"doctype": "Salary Component", "salary_component": "Timesheet Component"}).insert()
+
 	salary_structure = make_salary_structure(salary_structure_name, frequency, dont_submit=True)
 	salary_structure.salary_component = "Timesheet Component"
 	salary_structure.salary_slip_based_on_timesheet = 1