The salary components constituting an employee's pay structure is called a Pay Head. A Pay Head may be an earning to the employee, or a deduction, which is recovered from his/her salary. The value of these pay heads could be either fixed or variable, for each payroll period.
For example: Basic Pay is a fixed pay component whereas Variable Pay, Bonus are variable components.
A Pay Head is categorised as Earnings, Deductions or Reimbursements.
The preset Pay Head Types in Tally.ERP 9 are as shown below:

Earnings for Employees

Deductions from Employees

Employees’ Statutory Deductions

Employer’s Statutory Contributions

Employer’s Other Charges

Bonus

Gratuity

Loans and Advances

Reimbursements to Employees
Note: For International customers, Employees' Statutory Deductions, Employer's Statutory Contribution and Employer's other Charges Pay head Types are not applicable.
The Statutory Pay Head Type field is enabled when Employees' Statutory Deductions, Employer's Statutory Contributions and Employer's Other Charges Pay Head Types are selected in the Pay Head Type field.
The preset Statutory Pay Head Types in Tally.ERP 9 are as shown below:

Employee State Insurance

PF Account (A/c No. 1)

EPS Account (A/c No. 10)

Professional Tax

Income Tax

Voluntary PF (A/c No. 1)

Admin Charges (A/c No. 2)

EDLI Admin Charges (A/c No. 22)

EDLI Contribution (A/c No. 21)

National Pension Scheme (Tier  I)

National Pension Scheme (Tier  II)
Note: Statutory Pay Head Type will appear only when the Payroll Statutory Features are enabled.
This parameter should be set to Yes, for the Pay Head components that will be used for the Gratuity calculation (For example: Basic Pay and DA etc.)
The method of calculation of the Pay Head is based on its Calculation Type.
Note: The formula defined in Calculation Type will be used for computation only while using Payroll Auto Fill feature in the Payroll Voucher, and not in manual entry mode of Payroll voucher.
The following computation modes are supported in Calculation Types of Tally.ERP 9.
Flat Rate
Flat Rate is used where the value of the Pay head is a fixed amount for a period. Prorata calculation will not happen if this calculation type is selected in the pay head.
Examples of Flat Rate Calculation Type:
On Attendance
On Attendance type is based on the attendance data where the component will get prorated based on the actual days the Employee is present/absent in office for the selected period. In Tally.ERP 9 the attendance can be recorded as positive days (Present) or loss of pay (Absent) type.
Example of On Attendance Calculation Type:
If you want to calculate the Pay Head Value using the positive attendance (Present), then select the same against this field.
If you want to calculate the Pay Head Value using the negative attendance (Absent), then select Not Applicable in the Attendance/Leave with Pay field and select Absent in the Leave without Pay field.
On Production
On Production Calculation Type is used to calculate the pay value based on the Production/Work done. The production data can be entered in Attendance voucher against the Production type.
Example of On Production Calculation Type:
As Computed Value is used if the pay head value is dependent on another pay component. You will be able to define a pay component with this calculation type by specifying a formula/using current subtotal/on current earning/on deduction total. You can also define the slab either by percentage or value or a combination of both.
Example of As Computed Value:
As User defined Value allows you to manually enter the value at the time of processing the salary. This Calculation Type is used when the value of the pay is not fixed and does not depend on any pay component.
Example of As User Defined Value:

Incentives

Variable Salary
Calculation Period refers to the periodicity of Pay Head Calculation. There are four predefined calculation periods in Tally.ERP 9:

Days

Fortnights

Months

Weeks
Per day Calculation Basis refers to the calculation of per day Pay Head value Computation.
As per Calendar Period
As per Calendar Period refers to the perpetual calendar month, i.e. if the payroll process is carried out for the month of March, then the attendance records will be entered for 31 days.
For example:

Employee' Monthly Salary = Rs. 3000

Calculation Basis = As per Calendar Period

Per Day salary for Jan (31 days) = 3000/31 = 96.78

Leave Taken = 3 days in Jan

Salary Deductible = (3000/31)*3 = 290.32

Salary Payable = 3000  290.23 = 2709.67
User Defined
User Defined refers to the consistent payroll period irrespective of calendar month, i.e. if an employee’s salary is based on a standard month of 30 days irrespective of the calendar month, then you can select User Defined as the Calculation Basis and define the periodicity of the specified period or month.
For example:

Employee' Monthly Salary = Rs. 3000

Calculation Basis = User Defined month of 30 Days

Per Day salary for Jan (30 days) = 3000/30 = 100

Leave Taken = 3 days in Jan

Salary Deductible = (3000/30)*3 = 300

Salary Payable = 3000  300 = 2700
User Defined Calendar Type
User Defined Calendar Type option will provide flexibility to the user to select user defined calendar days for every Calculation Period. Once this option is selected, the user can have different number of working days for every Calculation Period.
For example the user can enter the total number of working days after reducing the Saturdays or Sundays or even holidays, if any, as per requirement.
For example:

Employee' Monthly Salary = Rs. 3000

Calculation Basis = User Defined Calendar Type

Working Days in Jan = 31 4 (Sundays)  2 (Holidays) =25 Days

Per Day salary for Jan (30 days) = 3000/25 = 120

Leave Taken = 3 days in Jan

Salary Deductible = (3000/25)*3 = 360

Salary Payable = 3000  360 = 2640
Note: The User defined Calendar days have to be entered while recording a Attendance Voucher using the Auto Fill feature in the Default Value to Fill field that needs to be filled for every Calculation Period.
There are four methods of Rounding Off in Tally.ERP 9:

Not Applicable – The decimal points will be taken into consideration and the amount will not be rounded off.

Downward Rounding – The decimal points will not be taken into consideration and the amount will be rounded off to the lower value.

Normal Rounding – The amount will be rounded off to the nearest currency value.

Upward Rounding – The amount will be rounded off to the higher value.
Computation Info
If As Computed Value is selected as the Calculation Type, then you can select the Pay Head Computation as per one of the following options:

On Current Deductions Total – This Calculation Type is used when the value of a pay head depends upon the total of the deduction pay heads already defined.

On Current Earnings Total – This Calculation Type is used when the value of a pay head depends upon the total earnings pay heads already defined.

On Current Sub Total – This Calculation Type is used when the value of a pay head depends upon the net total of earnings and deductions already defined.

On Specified Formula – This Calculation Type is used when the pay head value is computed on the basis of value of one or more pay heads already defined in the pay structure. (Tally.ERP 9 allows addition, subtraction, multiplication and also division of pay heads already defined in the pay structure For example: HRA is computed on 40% of the basic salary).
The Effective From date is by default taken as the financial year start date during which the Pay Head is created. In case of revision in pay computation, then such revision for the given pay head can be defined by altering the Effective From date.
In case there are multiple slabs for computation of pay head, then the start value for each slab should be provided in this field. By default, this field is skipped and assumed to be 0 for the first slab.
The upper stratum value for each slab is provided in this field.
Value Basis for each slab is provided in this field, which can be either an Amount or Percentage based on the Slab Type selected the previous field.
Note: All Pay Heads created will appear under the List of Ledgers in the default Accounting reports. 