Most compliance penalties we see startups pay have nothing to do with evasion. They come from missed dates — a form nobody owned, a deadline nobody tracked. For a private limited company in India, here is the year at a glance. (Due dates are as generally notified and are periodically extended or revised; treat this as a checklist of obligations, and confirm current dates before filing.)

Every month

ObligationTypical due date
Deposit of TDS/TCS deducted in the previous month7th
GSTR-1 (outward supplies)11th
PF and ESI contributions15th
GSTR-3B and GST payment20th
Professional tax (state-specific)Varies by state

Every quarter

ObligationTypical due date
Advance tax instalments15 June · 15 September · 15 December · 15 March
TDS returns (24Q salaries / 26Q others)31 July · 31 October · 31 January · 31 May

Once a year

ObligationTypical due date
DPT-3 (return of deposits / outstanding loans)30 June
MSME-1 (dues to MSME vendors, half-yearly)30 April & 31 October
Statutory audit & tax audit completionSeptember
Annual General MeetingBy 30 September
DIR-3 KYC (every director)30 September
Income tax return (companies)31 October
AOC-4 (financial statements to ROC)Within 30 days of AGM
MGT-7 / MGT-7A (annual return to ROC)Within 60 days of AGM
GST annual return (GSTR-9/9C, where applicable)31 December

Event-based filings founders forget

  • Share allotments — PAS-3 within 15 days (with the valuation report where required).
  • Foreign investment received — FC-GPR reporting within 30 days of allotment; annual FLA return by 15 July.
  • Charge creation (loans against assets) — CHG-1 within 30 days.
  • Director changes, registered office shifts, auditor appointments — each has its own ROC form and clock.

The pattern worth noticing: monthly items fail when they depend on a person instead of a process; annual items fail when audit work starts in September instead of June. A compliance calendar owned by a professional — with the audit timetable agreed in advance — eliminates nearly all of it.

None of these filings is difficult. What's difficult is being the founder who is also the last line of defence for thirty deadlines a year. That is a system problem, and systems are buildable.