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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.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.
Coming next
Being built and checked against the official texts — each one goes live only after verification.
•AccountsDepreciation calculatorIncome-tax Act blocks and Companies Act Schedule II, side by side.Coming next
•Company law · CSROC fee and additional fee calculatorWith the MCA filing calendar — AOC-4, MGT-7, DIR-3 KYC, DPT-3, LLP forms.Coming next
•Audit · CAForm 3CD and CARO 2020 checklistsClause-wise, ready to use.Coming next
•Cost · CMACost records and cost audit applicabilityThresholds and CRA form due dates.Coming next
•TemplatesFormats and Excel templatesNotice replies, board resolutions, fixed asset register, TDS working.Coming next
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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