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For CA · CS · CMA · tax practitionersProfessional tools you can rely on
Calculators, ready reckoners and updates for daily practice — every rate, limit and section checked against the official Act, rules and notifications, with the source linked on each page.
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Every pagelinked to official sources
28 October 2026last verified

Live tools
SFIncome taxIncome-tax Act 2025 section finderOld section → new section (and rules and forms), from the Income Tax Department’s official mapping.
ROCCompany law · CSROC fee and late fee calculatorAOC-4, MGT-7, ADT-1, INC-22, PAS-3, LLP Form 8/11 and DIR-3 KYC fees, plus the MCA compliance calendar.
CACost · CMACost records and cost audit applicabilityTurnover thresholds, exemptions and CRA-2 / CRA-4 due dates.
DEPAccountsDepreciation calculatorIncome-tax block WDV with the 180-day rule and additional depreciation, plus the Companies Act Schedule II year-wise schedule.
TPLTemplatesWord formatsBoard resolutions and GST / Income-tax notice reply formats — free downloads.
ITIncome taxInterest calculator — 234A, 234B, 234CLate return, advance tax shortfall and instalment interest with full working.
TDSTDSTDS interest and late fee calculator1% / 1.5% interest and the ₹200-a-day statement fee — 1961 and 2025 Acts.
TLGSTGST time limits — ready reckonerITC, returns, refunds, registration, demand, appeal and rectification deadlines with sections.
LFGSTGST late fee and interest calculatorDaily late fee with turnover caps, and 18% interest.
CBUpdatesCBIC circulars and notifications — explainedSimple-English explanations with official PDFs, plus the live CBIC and ICEGATE feed.
DDComplianceDue-date calendarGST, Income Tax, TDS and ROC dates, month by month.
ATIncome taxAdvance tax calculatorInstalment amounts and dates.
HSNClassificationHSN code and GST rate finderSearch 8-digit HSN codes with GST rates.Our checking standard: every figure comes from the Income-tax Act, 1961 and 2025, the CGST Act and Rules, the Companies Act or a notification or circular, and the source is linked on the page. Calculators are tested against worked examples before they go live. Found something that needs a second look? Tell us — we check and correct it the same day.
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