Tax tools & calculators — FY 2025-26

Every tool runs the same deterministic engine as the main app — 147 automated checks, section-cited math, no rules of thumb.

Free — no signup

📈Slab & Rebate ExplorerWatch tax curve vs income for both regimes — see the ₹12L 87A cliff and marginal relief with your own eyes.📖Section Quick-ReferenceThe 24 sections that matter in practice — plain-language holding plus a practitioner's note for each.🌾LTCG Harvesting PlannerThe ₹1.25L s.112A exemption is use-it-or-lose-it — compute what to book before 31 March and the 12.5% you avoid.🏠HRA Exemption CalculatorRule 2A's min-of-three, with the binding limb highlighted — exam answer and client answer in one.🎓The Tax-Law Quiz12 questions from real practice — 87A, Rule 2A, 44ADA, 234C safe harbour. Every miss teaches the section.🎁Gratuity CalculatorThe 15/26 formula plus the s.10(10) exemption — least of formula, ₹20L lifetime cap, and amount received.🏘️80GG Rent CalculatorNo HRA in the salary? The least-of-three 80GG deduction, with the Form 10BA checklist that CPC actually enforces.📅Deadline Calendar (.ics)Every due date into Google/Apple/Outlook Calendar in one click, day-before alarms included.

Professional — with a plan

Interest Calculator — 234A/B/CLate filing, advance-tax default and quarter-wise deferment — Rule 119A rounding, 12%/36% safe harbour, presumptive schedule. The notice-reply workhorse.

Regime Breakeven MatrixAt what deduction level does the old regime beat the new — across an income grid. Advise in seconds, not spreadsheets.

Notice Helper143(1), 139(9), 143(2), 148A, 245, demand notices — what each means, the clock it starts, and the response checklist.

26AS TDS ReconciliationPaste the 26AS, get every credit extracted, de-duped, totalled by section and matched against the return — without the statement leaving the browser.

CTC DesignerThe salary structure to recommend — basic %, HRA and employer NPS optimized jointly.

Unlimited Filing SummariesBranded computation PDFs for every client, every revision — no daily cap.

🗂️Business

Client WorkbookEvery client's profile, regime call and liability in one table — open any of them in the workspace and pick up where you left off.

Deadline Reminder ServiceYour clients get D-7 and D-1 emails before every due date — you get the credit.

Lawyer, CA or student? See how the tiers fit together on the Professional Suite page.