Free Tools
for CA Firms in India
Small calculators and reference charts for the questions that come up in a practice every week. Built for the numbers a client asks about on the phone, not for filing.
Browse the toolsGST Late Fee Calculator
Late fee for a delayed GSTR-3B, GSTR-1, GSTR-4 or GSTR-9 with the turnover caps applied, plus 18% interest on tax paid late.
Open toolTDS Interest Calculator
Interest under Section 201(1A) for late deduction and late deposit, counted by calendar month the way TRACES does, and the 234E fee.
Open toolAdvance Tax Calculator
The four instalments for the year from an estimate of tax and TDS, the 44AD/44ADA single instalment, and 234C interest on shortfalls.
Open toolCA Compliance Calendar
Every recurring GST, TDS, PF, ESI, advance tax, ITR and ROC due date, month by month, with the QRMP State groups.
Open toolWhy a practice management company publishes calculators
Most of the firms using QwikCA came to us because a deadline slipped, not because they wanted software. A late GSTR-3B for a client with a large cash liability, a TDS challan paid on the 8th, an advance tax instalment nobody reminded the client about. The fee itself is rarely the problem. The conversation with the client is.
These tools answer the first question that conversation raises: how much. They apply the rates and dates as they stand and show the working, so you can put a number in front of the client in under a minute. They do not prepare or file anything, and they are not a substitute for checking the notification for the period in question.
Each one is reviewed when the rules change. The review date sits at the top of every page. If you spot a rate that has moved before we have, tell us and we will fix it.
Guides and Reading
DPDP Act Compliance for CA Firms
What the Digital Personal Data Protection Act asks of a practice, section by section, with an 8-step checklist.
GST Late Fee Structure Guide
The longer read on Section 47, the notifications behind the reduced fees, and how penalties differ from late fee.
Income Tax Due Dates 2026
The year's income tax dates for individuals, businesses and professionals in one place.
Auto-recurring Tasks
How QwikCA turns every recurring deadline into a task per client without anyone typing it in.
The tool that stops the deadline slipping in the first place
QwikCA creates every recurring GST, TDS, ROC and income tax task per client, tracks it on one board, and reminds the client for data before the date. Free for a month, no card needed.