Certified payroll software is a program which makes certified payroll reports. Certified payroll software generates payrolls under Davis-Bacon act. It needs submission of weekly payroll report starting with the first week that a company works on a project and for every week there after, till the work completed. These payroll reports are to be signed and should have certificate that the information given in it are true and correct.

Payroll tax software is software which takes care of payroll taxes related queries. During the preparation of a payroll report, tax is a major aspect of calculating the payroll reports. There are certain contributions which made both by the employer and the employee like the employee provident fund. It is necessary for the employer to make such records of PF contributions. Payroll tax software also calculates employee income tax, EPF, HRA, TDS, deductions and rebates under various sections etc.

Bookkeeping is basics of accounting. Accounting cannot work with dual entry bookkeeping system; bookkeeping itself means maintaining records. Book keeping maintains record of every transaction. Book keeping software with payroll means software which does accounting functions like maintaining journal and ledger entries and also keeping payroll of employees. All the bookkeeping functions can be classified under accounts receivable, accounts payable, ledger and sub ledger entries, receipts and voucher entries and bank reconciliation statements. Payroll functions calculate employee salaries, wages, tax deductions, bonus etc. Book keeping software with payroll integrates both these functions.