Home › Tamil Nadu › Tax Audit (Section 44AB)
Tamil Nadu, India
Tamil Nadu is India's second-largest economy. Chennai leads in automotive (40% of India's 4-wheeler output), Coimbatore in textiles and engineering, Trichy in BHEL-led heavy industry. TANSIDCO clears most approvals in 14 days.
15-25 days
100% Online
Free consultation with Tamil Nadu-based CA. Reply within 2 hours.
Local Tamil Nadu expertise — our CAs know state-specific stamp duty, professional tax, and registration nuances.
Serving founders across Tamil Nadu — IT, manufacturing, retail, F&B, services. SLA-backed delivery in 15-25 days.
100% online process — no need to visit any office. Documents uploaded, signed, and delivered digitally.
Transparent ₹14,999 pricing — government fees disclosed separately, never bundled into "processing charges".
Same-day response from a named CA. Call, Whatsapp, or email — we reply within 2 hours.
Books of account verification
Form 3CA / 3CB selection and prep
Form 3CD (50+ clauses) filing
Cash transaction reporting
Loan and deposit reporting
GST reconciliation with books
ITR filing by 31 October
Business turnover > ₹1 crore (or > ₹10 crore if cash receipts/payments are below 5% of turnover). Professional gross receipts > ₹50 lakh.
30 September for Form 3CA/3CB + 3CD. ITR by 31 October. 1-month grace usually granted, but late filing attracts 0.5% of turnover penalty (capped at ₹1.5 lakh).
3CA is when the business is also audited under another law (Companies Act, etc.). 3CB is for businesses not audited elsewhere. Both are followed by the same Form 3CD.
Five stages, SLA-tracked, with a named CA who replies in under 12 minutes during business hours.
You
FilingLab
Govt
01
You
Initial requirements
You share KYC and service-specific details.
1 day
02
FilingLab
Document preparation
Our CA team drafts every form and supporting document.
2 days
03
FilingLab
Verification & filing
Senior review, then submission to the relevant government portal.
Same day
04
Govt
Government processing
Authority reviews and approves the application.
5–15 days
IF REJECTED
If the government raises a clarification, we respond within 24 hours at no extra service fee.
05
FilingLab
Certificate + handover
Final certificate downloaded and shared. Compliance calendar goes live.
Same day
01
You
· 1 day
Initial requirements
You share KYC and service-specific details.
02
FilingLab
· 2 days
Document preparation
Our CA team drafts every form and supporting document.
03
FilingLab
· Same day
Verification & filing
Senior review, then submission to the relevant government portal.
04
Govt
· 5–15 days
Government processing
Authority reviews and approves the application.
IF REJECTED
If the government raises a clarification, we respond within 24 hours at no extra service fee.
05
FilingLab
· Same day
Certificate + handover
Final certificate downloaded and shared. Compliance calendar goes live.
Same service in