F
FilingLab
Business Services
GST, ITR, EMI, name availability — the four calculators founders open most. Updated for FY 2026, accurate to the rupee, no email gate.
No signup
No card
No email
No upsell
Calculate GST amount for any transaction — inclusive, exclusive, or reverse.
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Print-ready invoice with CGST/SGST or IGST split, HSN, amount in words.
Find the right HSN or SAC code and GST rate for your goods or services.
Structural check + check-digit math. Catches typos before they hit your books.
Validate thousands of GSTINs at once via paste or CSV upload. 100% client-side.
14 sections covered (194A, 194C, 194I, 194J, 194Q…). FY 2025-26 rates.
Pick the cheaper regime — old vs new. CTC structure, in-hand, HRA, 80C.
Compute your tax liability for FY 2025-26 under new and old regime.
State-wise stamp duty + registration fee across 20 states. Gender concessions included.
Check if your proposed company name is available before filing.
Calculate monthly EMI with principal + interest breakup.
See what you would pay at Vakilsearch, ClearTax or IndiaFilings vs FilingLab. Per-year delta.
CorpBot
Hi! I'm CorpBot. Ask me anything about company registration, GST, ITR, or trademark — or tell me your need and I'll connect you with a CA.