Previous Year vs Assessment Year Key Tax Distinction
Assessment Year (AY) is the 12-month period when the taxman evaluates the money you earned in the Previous Year (PY). PY is simply the year you actually earned the income.
People get tripped up because both years sit side-by-side on the same return. It feels odd to label 2023 income under an AY called 2024-25, so many taxpayers assume the labels are interchangeable.
Key Differences
PY records what you made; AY reviews it. Think of PY as the earning window and AY as the judgment window.
Examples and Daily Life
You worked all of 2023—salary, gig apps, bank interest. Come April 2024, you file returns under AY 2024-25 because that’s when the tax review happens.
Can PY and AY ever be the same?
No. By design, the assessment always trails the earning year.
Why does this two-year system exist?
It gives everyone time—taxpayers to gather slips and the department to verify them.