NSC Calculator — Calculations & Slabs for FY 2026-27

NSC is a fixed-income, low-risk post office savings scheme backed by the Government of India. It has a lock-in period of 5 years and offers fixed interest rates determined quarterly by the government. This ensures full compliance with the latest regulations, allowing you to estimate values correctly and avoid common filing errors.

The initial investment in NSC qualifies for deduction under Section 80C. Additionally, the interest earned in years 1 to 4 is automatically reinvested back into the scheme. Since this interest is reinvested, it also qualifies for a fresh Section 80C deduction in those respective years. The interest earned in the 5th (final) year is taxable as it is paid out on maturity.

There is no upper limit or cap on the amount you can invest in NSC. You can purchase certificates of various denominations starting from ₹1,000. However, the tax deduction under Section 80C remains capped at the standard ₹1,50,000 per financial year.

Premature withdrawal of NSC is generally not allowed. It is permitted only under exceptional circumstances, such as the death of the certificate holder, forfeiture by a pledgee (if pledged as collateral for a loan), or under order of a court of law.

You can verify the values against the official notifications listed in our data sources section at the bottom of the page.