Primary sources first
Income Tax Department, CBDT, the applicable Act, Rules, notifications, circulars and CBIC take priority over commercial summaries.
Editorial and numerical policy
A wording change cannot silently change a tax result
The calculation is maintained separately from the explanatory copy. Any numerical change requires a current official source and independently checked expected results.
On this page
Named scope
Every calculator states FY, AY, taxpayer, residence, income heads, regime assumptions, exclusions and last source check.
How calculations are checked
We test ordinary amounts, zero values, thresholds, marginal relief, invalid inputs and tax credits against separately calculated expected results.
Qualified review
Rule-sensitive tax calculations require review by an Indian chartered accountant or another appropriately qualified Indian tax professional before public use.
No invented experience
We do not fabricate filers, refunds, savings, approvals, professional credentials, government relationships or testimonials.
Corrections
A correction identifies the source, affected output, what changed and when the corrected calculation became available.