Duly is a pre-filing brain: it reads what your employers and banks gave you, reconciles the lot, and explains your liability down to the rupee. It never files for you — it makes you the most prepared person on the e-filing portal.
Job switch, intern-to-FTE conversion, or a re-issued certificate — upload them all. Exact duplicates (same TAN + certificate number) count once, different employers get clubbed, and the standard deduction is applied exactly once on the aggregate.
Every TAN in your Form 16s is matched against 26AS Part I. Rounding differences up to ₹10 are noted and ignored; material gaps are flagged critical — because only deposited TDS is creditable.
The department already knows your interest income. If TIS shows salary or savings interest you haven't accounted for, Duly prompts you before the portal surprises you.
Old and new regime computed side by side with AY 2026-27 slabs, the ₹60,000 §87A rebate, marginal relief, surcharge bands and cess — and a plain answer for which one saves you how much.
If you owe self-assessment tax, §234B is already accruing at 1% a month — §234A joins after the deadline. The report shows today's figure and what each further month of delay costs.
Filing late adds the flat §234F fee (₹1,000 up to ₹5 lakh of income, ₹5,000 above) on top of §234A interest, even when a refund is due. Duly adds both to the figure you pay and tells you how long the belated-return window stays open.
Type the Total Income and Net tax payable from your ITR-V acknowledgement to see whether your return matches. If it doesn't, Duly tells you whether you can still revise it for free, or with a fee, and until when.
Every computed number mapped to its exact field on the e-filing portal, so filing becomes transcription instead of guesswork.
HDFC, ICICI and slice formats read automatically; anything else gets a two-field manual entry. Savings interest is classified for the 80TTA deduction under the old regime.
No Form 16 yet? Type your payslip totals and TDS, and get the same dual-regime computation and report.
No login, no storage, no server-side processing — the content-security policy blocks outbound requests, so your documents physically cannot leave the tab. Sessions wipe themselves after 15 idle minutes.
The more sources you add, the more the numbers corroborate each other — the report shows its confidence as you go.
Try it with this year's Form 16 →