diff --git a/erpnext/payroll/doctype/salary_slip/salary_slip.py b/erpnext/payroll/doctype/salary_slip/salary_slip.py
index 05af09e..b035292 100644
--- a/erpnext/payroll/doctype/salary_slip/salary_slip.py
+++ b/erpnext/payroll/doctype/salary_slip/salary_slip.py
@@ -940,10 +940,12 @@
 
 	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 (row.additional_salary and row.default_amount) # to identify overwritten additional salary
-			and (not self.salary_slip_based_on_timesheet or
+			and (row.salary_component != timesheet_component or
 				getdate(self.start_date) < joining_date or
 				(relieving_date and getdate(self.end_date) > relieving_date)
 			)):
@@ -952,7 +954,7 @@
 			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)
diff --git a/erpnext/payroll/doctype/salary_slip/test_salary_slip.py b/erpnext/payroll/doctype/salary_slip/test_salary_slip.py
index e4618c3..3052a2b 100644
--- a/erpnext/payroll/doctype/salary_slip/test_salary_slip.py
+++ b/erpnext/payroll/doctype/salary_slip/test_salary_slip.py
@@ -134,6 +134,57 @@
 
 		frappe.db.set_value("Payroll Settings", None, "payroll_based_on", "Leave")
 
+	def test_payment_days_in_salary_slip_based_on_timesheet(self):
+		from erpnext.hr.doctype.attendance.attendance import mark_attendance
+		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,
+		)
+
+		# Payroll based on attendance
+		frappe.db.set_value("Payroll Settings", None, "payroll_based_on", "Attendance")
+
+		emp = make_employee("test_employee_timesheet@salary.com", company="_Test Company")
+		frappe.db.set_value("Employee", emp, {"relieving_date": None, "status": "Active"})
+
+		# mark attendance
+		month_start_date = get_first_day(nowdate())
+		month_end_date = get_last_day(nowdate())
+
+		first_sunday = frappe.db.sql("""
+			select holiday_date from `tabHoliday`
+			where parent = 'Salary Slip Test Holiday List'
+				and holiday_date between %s and %s
+			order by holiday_date
+		""", (month_start_date, month_end_date))[0][0]
+
+		mark_attendance(emp, add_days(first_sunday, 1), 'Absent', ignore_validate=True) # counted as absent
+
+		# salary structure based on timesheet
+		make_salary_structure_for_timesheet(emp)
+		timesheet = make_timesheet(emp, simulate=True, is_billable=1)
+		salary_slip = make_salary_slip_for_timesheet(timesheet.name)
+		salary_slip.start_date = month_start_date
+		salary_slip.end_date = month_end_date
+		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 - 1)
+
+		# gross pay calculation based on attendance (payment days)
+		gross_pay = 78100 - ((78000 / (days_in_month - no_of_holidays)) * flt(salary_slip.leave_without_pay + salary_slip.absent_days))
+
+		self.assertEqual(salary_slip.gross_pay, flt(gross_pay, 2))
+
+		frappe.db.set_value("Payroll Settings", None, "payroll_based_on", "Leave")
+
 	def test_component_amount_dependent_on_another_payment_days_based_component(self):
 		from erpnext.hr.doctype.attendance.attendance import mark_attendance
 		from erpnext.payroll.doctype.salary_structure.test_salary_structure import (
diff --git a/erpnext/projects/doctype/timesheet/test_timesheet.py b/erpnext/projects/doctype/timesheet/test_timesheet.py
index d59cc01..148d8ba 100644
--- a/erpnext/projects/doctype/timesheet/test_timesheet.py
+++ b/erpnext/projects/doctype/timesheet/test_timesheet.py
@@ -34,10 +34,6 @@
 		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):
 		emp = make_employee("test_employee_6@salary.com")
 
@@ -160,6 +156,9 @@
 	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, company=company, dont_submit=True)
 	salary_structure.salary_component = "Timesheet Component"
 	salary_structure.salary_slip_based_on_timesheet = 1