See the source behind a fact
Review observations from supported documents, with their provenance preserved when you resolve a conflict.
Check document support →OPEN SOURCE. YOUR BROWSER. YOUR DATA.
Understand your tax.
Keep your data.
Free, open-source Indian income-tax analysis. Review your documents, understand the calculations, and see where the numbers come from.
No account required. Educational analysis, not return filing.
₹0Free to use
MITOpen-source license
2026-27Assessment year
LocalDocument processing
A CLEARER VIEW OF YOUR TAX
More context.
Less guesswork.
Documents can disagree. Important facts can be missing. OpenITR makes those gaps visible before you rely on a result.
Follow the calculation
Explore educational tax computations with cited rules, inputs, and limitations.
Understand the scope →Keep your documents local
Select files for your current browser session. No account is needed to begin.
Read the privacy answers →BUILT IN THE OPEN
Your tax deserves
a clear explanation.
Read the code. Check the scope. Then start with your own evidence.