Free tools

Free compliance calculators

Quick answers for Indian SMBs and startups — late fees, interest, due dates and what applies — computed on the same deterministic engine that powers ComplianceStack. No sign-up required.

Applicability & calendar

Compliance applicability quick-check

What GST, TDS, PF/ESI and ROC obligations apply to you?

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Statutory due-date checker

When is this filing or payment due?

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Compliance health snapshot

How much compliance applies to this company — at a glance?

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GST

GST late fee & interest calculator

What's the late fee and interest on a delayed GST return?

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QRMP vs monthly GST decision tool

Can I elect QRMP, and how does it compare to monthly?

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GST registration threshold checker

Do I need GST registration?

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TDS & income tax

TDS interest & late-fee calculator

Interest on late TDS deduction/deposit + the 234E fee.

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Advance tax & 234B/234C calculator

How much advance tax, and the interest if you're short?

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Section 43B(h) MSME disallowance checker

Is this late MSME payment disallowed for tax?

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ITR late-filing fee calculator (section 234F)

What's the late fee for filing your ITR after the due date?

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TDS section & rate finder

Which TDS section and rate applies to this payment?

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ROC / MCA

DPT-3 applicability checker

Does my company need to file DPT-3?

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MSME Form 1 due-date & applicability checker

Do I owe a micro/small supplier beyond 45 days?

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ROC late-fee calculator (AOC-4 & MGT-7)

What's the MCA additional fee on a late annual filing?

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DIR-3 KYC due date & penalty checker

When is DIR-3 KYC due, and what does missing it cost?

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Payroll & labour

PF & ESI due-date & delay calculator

PF/ESI due date and the interest on a late deposit.

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FEMA & funding

Funding-round filing timeline

I raised a round — what do I file, and by when?

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FC-GPR deadline & Late Submission Fee calculator

When is FC-GPR due, and what's the LSF if it's late?

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Startup, ESOP & diligence

Diligence-readiness self-assessment

Are you diligence-ready before investors ask?

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Startup India (DPIIT & 80-IAC) eligibility checker

Are you eligible for DPIIT recognition and the 80-IAC tax holiday?

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ESOP perquisite tax calculator

What's the tax when I exercise my ESOPs?

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Stop calculating, start tracking

ComplianceStack builds your full applicable calendar, computes every due date, and keeps the evidence in one place. Your first health check is free.

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