Preferred Tax Software and Solution Provider

Sinewave Computer Services Pvt. Ltd. (ISO 9001:2008) is 32 years Income Tax and HR Solutions Software Development Company situated at Pune, Maharashtra, India. We are catering to 20,000+ customer base across India. Sinewave is a well-known for providing high quality and reliable GST, TDS, Income Tax and Payroll software solutions. Presently, Sinewave has compressive customer coverage from Individuals to SMEs. Our clientele includes Chartered Accountants, Cost Accountants, Tax Consultants, Education Institutes, Co-operative Societies, Banks, Service Industries, Small and Medium Enterprises (SME) and many more. Our Taxation software offers various facilities like computation of Income Tax, TDS, Advance Tax Register, Billing Management, AIR modules, Office Management and Post filing management at no extra cost.


Best Indian Taxation Software and Solution Provider

Excellent HR Management Software with complete coverage of TDS, Income Tax, PF, ESIC and Professional Tax

  • Our objective is the satisfaction and thriving of all our stake holders including our Employees, Customers and Partners.
  • Through the establishment of a quality management system, adoption of a risk assessment framework and by embracing a culture of continuous improvement,
  • we at Sinewave Computer Services Pvt. Ltd. will always strive to meet customers' requirements by delivering high quality products and services in a timely manner.

Milestones In Our History

Sinewave Computer Services Private Limited was found in 1995 by taking over firm with same name which was established in 1984.

Sinewave commenced its activities with data processing (including word processing) and computer hardware trading in 1984.It subsequently developed its own accounting and stock management flag ship product namely CA2.5 and had around 3000 users by 1990. The users for this product varied from Chartered Accountants, Retailers, Supermarkets, and Forging Industry etc.

Cloud Based Software

Sinewave has introduced the cloud based accounting software.


Sinewave developed the software for GST.

E-filing Income Tax Return Software

Sinewave was the first company to provide software for e-filing on Income Tax returns.

VAT era Software

Sinewave developed software for VAT era.


Sinewave migrated HR and Payroll software to Windows Platform.


Sinewave migrated DOS based Taxbase (Income Tax) software to windows platform.

Service Tax Software

Sinewave developed software for Service Tax.

Sales Tax

Sinewave developed software for Sales Tax catering to capture of data along with filing of returns.

Converting Project Estimation Including Cost Escalation

Sinewave developed software for builders which were converting project estimation including cost escalation in project costs with change in material prices along with comprehensive accounting system.

Devloped HR Application

Sinewave developed its HR application catering to SME segment.

The Beginning

Sinewave also developed Taxation product catering to income tax computation and filing software mainly targeted for Tax consultants.


Our Vision & Mission

To be the preferred choice for Tax & HR related Software solutions

  • To Create a Credible Brand Equity
  • To Create an All India Footprint
  • To Project a Competitive Differentiator
  • To Develop World Class Products
  • To Create World Class Operations