To bring Uniformity and to give deductors sufficient time in filing of TDS Statement CBDT has vide Notification No. 30/2016 Dated: 29.04.2016 has revised due date for filing of TDS statements for Government and non-government deductors wef 01.06.2016 to as follows,
Quarter 1: 31st July,    Quarter 2: 31st October,     Quarter 3: 31st January,    Quarter 4: 31st May

About Us

Sinewave - Income Tax Software Providers

Sinewave Computer Services Pvt. Ltd.(ISO 9001:2008) is a 30 years software development company situated at Pune, Maharashtra, India. Catering to 15,000+ customer base across India. Sinewave is a well known in providing high quality and reliable Income Tax calculation and efiling software solutions for Taxation in India and HR Management. Presently Sinewave has a compressive customer coverage right from Individuals to SMEs. Our clientele sector includes Chartered Accountants (CA's), Cost Accountants (CWA's), Tax Consultants, Education Institutions, Co-operative Societies, Banks, Service Industry, Small and Medium Scale (SME) industrial sector and many more.Our Taxation software offers various facilities like computation & calculation of Income Tax, TDS,Wealth Tax, Advance Tax Register, Billing Management, AIR modules, Office Management & Post filing management at no extra cost.

Latest News

  • TaxbaseLAN Version
    Released on : 20/09/2016
    Covers :-

    1. As per the CBDT order u/s 119 dated 09/09/2016, we have updated the Software for due date of Income Tax Return (ITR) from 30/09/2016 to 17/10/2016 in the case of income tax assessees throughout India who are liable to file their Income tax returns by 30/09/2016.
    2. TDS File Validation Utility (FVU) 5.2 and 2.148 incorporated.

    TaxbaseLANPro Version
    Released on : 14/09/2016

    -As per the CBDT order u/s 119, we have updated the software for due date for submission of Returns of Income from 30/09/2016 to 17/10/2016 in the case of income tax assessees throughout India who are liable to file their Income tax returns by 30/09/2016.
    -As per the CBDT order, we have updated the Software for due date of Income Tax Return (ITR) in case of State Jammu & Kashmir for A.Y. 2016-17 due date is 30th September 2016.
    -New Income tax forms such as Form 9A/15CB/15CC/35/ Auditor Report (CARO 2015) / Appointment of Auditor incorporated.
    -Provision of printing Form 3CD with cover page and on letter head provided.
    -In Form 3CD in Deduction details we have given option to deduct from Opening WDV or Additions more than 180 Days or Addition less than 180 Days.

    "The new rate of 14% for Service Tax  will be applicable with effect from 01/06/2015 subject to Point Of Taxation Rules & other provisions of law.”

    Services of TIN call center are now available 24 x 7.You may call on 020-27218080 anytime.

    TaxbaseMini Version 9.9
    Released on 25/05/2016

    New A. Y. 2017-18 incorporated
    New Provision for Tax Payer to View My Profile and Reset Password.
    ServiceTax Pro Version 1.03.1
    Released on 14/09/2016

    Interest Code for Swatch Bharat Cess and Krishi Kalyan Cess in Challan is incorporated.

    New provision of Krishi Kalyan Cess in Quick Challan is incorporated.

    Interest Rate updated as per department.

    PaywhizProfessional Version
    Released on : 04/07/2016

    - Manual Override option provided in timesheet for Additions.

    VATXpress Version
    Released on 26/09/2016

    Return Template Changes made by the government on 03-09-2016 is incorporated.

    Updated Excel sheet for FY 15-16 is incorporated

Our Products

TaxbasePersonal very easy to use. It comes up...
  know More   Download
TaxbaseLAN on Dot Net is similar to...
  know More   Download
VATXPress - An extremely efficient and...
  Know More   Download
This is complete TDS & TCS management...
  Know More   Download
It’s a complete offline solution which is used for...
  Know More   Download
ServiceTax Pro is efficient software for...
  Know More   Download
Paywhiz is versatile software that can manage...
  know More   Download
TaxbaseMini is an Android Mobile Application...
  Know More   Download
Download the latest Form 3CD...
  Know More   Download
Payroll On Net Know More
Taxbasesuite - Website, DMS Know More

Other Activities


Contact Us


T-22, 3rd Floor, Super Mall, Salunke Vihar Road, Wanowrie, Pune - 411040, Maharashtra, India. Head Office : +91-020-67251900 Helpline(Pune) : +91-020-66810000 Additional No. :09422417069 , 09823149506.
Payroll Support :+91-020- 65210005
Thane Office : +91-022-25800223/24/25/26 Digital Signature Certificates:+91-020-66810052/50

Find Us