Tax & Finance Day Calculators

Free, India-specific calculators that turn dates and days into rupee figures. Updated for the Income-tax Act, 2025 framework where applicable.

GST Rate Finder — HSN code wise

1,603 entries · 1,367 HSN goods + 236 SAC services · GST 2.0 slabs

Search any product, service, HSN or SAC code for its current GST rate, conditions and CGST/SGST split — plus a GST calculator.

Companies Act 2013 Calculators

Schedule II depreciation · Section 135 CSR · Section 123 dividend

SLM & WDV depreciation with reverse cost calculation, 2% CSR on Section 198 net profit, and dividend per share with a distributable-profit check.

TDS Late Deduction & Deposit Interest

Section 201(1A)

Compute 1% per month on late deduction and 1.5% per month on late deposit of TDS.

MSME Delayed Payment Interest

MSMED Act Section 16

Compound interest at three times the RBI bank rate on overdue MSME invoices.

Advance Tax & Late Filing Interest

Sec 234A/B/C · ITA 2025 Sec 423/424/425

Interest on late ITR filing and advance-tax shortfall at 1% per month.

GST Late Payment Interest

Section 50, CGST Act

18% p.a. on delayed GST payment and 24% p.a. on excess ITC, day-wise.

Income Tax Refund Interest

0.5% per month simple interest on delayed income-tax refunds.

43B(h) MSME Payment Deadline Tracker

Income Tax Disallowance

Check whether an MSME expense stays deductible or gets disallowed.

Capital Gains Holding Period

Classify short-term vs long-term capital gains by asset type and dates.

PF & ESI Late Deposit Interest & Damages

EPF Sec 7Q & 14B

Estimate 12% p.a. interest plus graded damages on delayed EPF/ESI deposits.

Advance Tax Instalment & Shortfall Planner

Plan quarterly instalments and estimate 234C interest on shortfalls.

Lower / Nil TDS Certificate Validity Day-Counter

Count remaining days on a Section 197 certificate and flag threshold breaches.

Why day-based tax calculators?

Indian tax and labour laws use days and months everywhere — TDS deposit due dates, advance-tax instalment dates, MSME payment windows, GST return deadlines, and holding periods. These calculators translate those dates into exact interest, disallowance, and classification outcomes.