Tools

Free calculators for the jobs that come round every year: CSR budgets, applicability tests, filing deadlines. Each one shows its working, cites the rule it applies and runs entirely in your browser, so your figures never leave your device.

  1. CSR obligation calculator (Section 135)

    Does CSR apply to us, and how much must we spend this year?

    Check whether CSR applies to your company and work out the 2% spend for FY 2026-27: net profit under Section 198, the three-year average, set-off of past excess spend and where any unspent amount must go.

    Rules checked 17 October 2026

    Open the calculator
  2. Quarterly results deadline calculator (Regulations 29, 33 and 47)

    When are the board-meeting notice, the results and the trading-window dates due under Regulations 29 and 33?

    Work out every listed-company results date from the quarter end: the Regulation 29 board-meeting notice, the 45 or 60-day Regulation 33 deadline, the 30-minute or three-hour filing, the newspaper advertisement, the trading-window closure and the earnings-call recording and transcript.

    Rules checked 17 October 2026

    Open the calculator

On the workbench

Next in line, chosen from what readers search for. Each will launch with the same approach: show the working and link the rule.