Compliance calculators

Interest, fees and due dates — computed, not estimated

Every figure here is produced by code and shows its full working, so you can check each step rather than trust a number. Nothing is sent anywhere; this runs in your browser.

No language model involvedThese are exact computations, not generated text. The assistant uses these same functions when a question needs a figure.

Interest for late ITR filing

1% per month, or part of a month, on unpaid tax from the due date to the date of filing.

Section 234A, Income-tax Act

Interest for advance-tax default

Applies when advance tax paid is under 90% of assessed tax.

Section 234B, Income-tax Act

Interest for deferred advance tax

Checks each instalment against the 15% / 45% / 75% / 100% benchmarks.

Section 234C, Income-tax Act

Late filing fee

₹1,000 where total income is up to ₹5,00,000, otherwise ₹5,000.

Section 234F, Income-tax Act

TDS default interest

1% per month for failure to deduct; 1.5% per month for failure to deposit after deduction.

Section 201(1A), Income-tax Act

GST interest on delayed payment

18% per annum on a daily basis; 24% for undue or excess input tax credit.

Section 50, CGST Act, 2017

GST late fee

Computed per Act and doubled for CGST + SGST. Uses the statutory rate unless you supply the notified one.

Section 47, CGST Act, 2017

GST return due date

GSTR-1 and GSTR-3B, monthly or QRMP — including the 22nd/24th State split.

Notified GST return due dates

Advance tax schedule

The four instalment dates and cumulative percentages for a financial year.

Advance-tax instalment benchmarks

Results depend on the facts you enter and on the notification in force for the period. Confirm applicability before relying on any figure. Ask the assistant if you need the underlying rule with its source.