Can this tool replace professional tax advice?

No. The tool is an educational calculation aid. Users should verify figures, legal classification, rates and due dates with a qualified professional before making decisions.

Does the tool store my calculation?

Standard tool calculations are processed in the browser request and can be shared using the generated URL. Avoid entering confidential case information on public pages.

GST Interest Calculator | Delayed Payment Estimate

Purpose

The interest calculator estimates simple interest on delayed indirect-tax payment using amount, annual rate and delay days.

Interest = Tax amount × Annual rate ÷ 100 × Days ÷ 365

Limitations

Actual interest can depend on the applicable section, period, nature of delay, credit utilisation, payment date, portal computation and judicial developments.

Frequently asked questions

Does this calculate compound interest?

No. It uses a simple interest formula for support estimation.