Turn withheld TDS into a ready-to-file ITR-4.
Drop in your AIS or Form 26AS. Trove finds the tax your clients withheld, computes your refund, and drafts a portal-ready ITR-4 — without your data ever leaving your device.
Product walkthrough
The complete recovery path in one minute.
From statement upload to the refund math, regime comparison, and ITR-4 JSON download — watch the full flow.
System behind the interface
A real engine, zero servers.
Trove’s tax engine is written in Go, compiled to WebAssembly, and shipped to your browser. Every rupee is computed on your machine — deterministically, with the working shown line by line.
Nothing Leaves Your Device
Your AIS, Form 26AS, PAN and numbers are parsed and computed locally. There is no server to send them to — open the network tab and watch.
Go Engine, Compiled to WASM
A deterministic tax engine runs in your browser — Section 44ADA presumptive math, both regimes compared, Section 87A marginal relief, surcharge and cess.
Guardrails, Not Guesses
Capital gains, mixed income, receipts over the limit? Trove refuses to draft a return it can’t get right — and tells you exactly why.
Official ITR-4 Schema
Every draft validates against the CBDT’s published ITR-4 JSON schema, ready to import directly on the e-filing portal.