Free tools & reference library
ABMCO publishes every tool we use internally — calculators, checklists, the tax calendar, rate finders — for free. No signup, no third-party tracking, no marketing emails. Pick the tool that fits your situation; if you need help interpreting the result, talk to a CA.
Most-used tools this month
Income tax, GST, TDS, HRA, capital gains, advance tax.
Income Tax Calculator (Old vs New Regime)
Compare old and new tax regime for FY 2025-26 (AY 2026-27). See which saves you more.
TDS on Salary Calculator
Estimate TDS deduction from your salary for FY 2025-26.
GST Calculator
Add or remove GST from any amount. Intra-state (CGST + SGST) or inter-state (IGST).
HRA Exemption Calculator
Calculate your HRA exemption under Section 10(13A).
Capital Gains Calculator
Calculate STCG vs LTCG for property, equity, gold, and debt funds.
Gratuity Calculator
Calculate gratuity payable under the Payment of Gratuity Act, 1972.
Leave Encashment Calculator
Calculate the value of unutilized leave at retirement or exit.
ITR Refund Status Tracker
Informational guide on tracking your ITR refund on the income tax portal.
Section 54 / 54F Exemption Calculator
Calculate exemption on long-term capital gains from property sale.
Payroll / In-hand Salary Calculator
Convert CTC to in-hand monthly salary.
Advance Tax Calculator
Calculate advance tax installments and due dates for FY 2025-26.
SIP, FD, RD, PPF, NPS.
SIP Returns Calculator
Estimate the future value of your monthly SIP investment.
FD Returns Calculator
Calculate maturity amount and interest on fixed deposits.
RD Returns Calculator
Calculate maturity amount on Recurring Deposits.
PPF Returns Calculator
Calculate PPF maturity with yearly deposits and 15-year lock-in.
NPS Returns Calculator
Estimate NPS corpus, returns, and Section 80CCD(1B) tax benefit.
EMI, home loan eligibility.
20 document checklists
PDF checklists for ITR filing, GST registration, company registration, audit and more.
Documents for ITR Filing (Salaried)
Complete document list for filing your income tax return as a salaried individual — Form 16, bank statements, investment proofs and more.
Documents for ITR Filing (Business / Profession)
Everything you need to file your business or professional income tax return — P&L, balance sheet, GST reconciliation and more.
Documents for GST Registration
Documents needed to apply for a new GSTIN — KYC, address proof, bank proof and business-specific documents.
Documents for Pvt Ltd Registration
Incorporate a Private Limited Company — DIN, DSC, MOA, AOA, registered office proof and director KYC.
Documents for LLP Registration
Register a Limited Liability Partnership — partner KYC, DSC, address proof and LLP agreement.
Documents for Trademark Registration
File a trademark or service mark application — applicant KYC, brand representation and class selection.
Documents for FSSAI License
Apply for an FSSAI license — basic, state or central — with this complete document list.
Documents for Bank Loan / CMA Data
Working capital, term loan, or CC limit — here's the document list banks typically request plus the CMA data a CA prepares.
Documents for Tax Audit
Get your accounts tax-audit ready — books, vouchers, TDS proofs and Form 3CD data points.
Always-up-to-date reference tools
Tax compliance calendar
Filterable calendar of Income Tax, GST, TDS, and ROC due dates. iCal export and Google Calendar add.
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Tax rates & deduction limits
Current FY old and new regime tax slabs, GST rate finder, TDS rate chart, Section 80C/80D/80G limits.
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HSN / SAC code lookup
Reference table of the most-used HSN and SAC codes with applicable GST rates.
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Need help interpreting a result?
Every tool here is built to be self-serve. For advisory or filing, our CA partners are one click away.
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Last updated: 21 June 2026 · Reviewed by A B Musani And Company · ICAI Firm Reg No. 016835S