Sole Proprietorship Annual Compliance
ITR-3/ITR-4, GST and Tax Filings in Mumbai
Annual compliance for sole proprietors: ITR-3 or ITR-4, GST returns, GSTR-9, professional tax, advance tax and TDS managed by a Mumbai CA firm.
Overview
What Annual Compliance Does a Sole Proprietor Need?
A sole proprietorship is the simplest business form in India, but its compliance obligations are anything but trivial. The moment a proprietor has GST turnover above the threshold, employs staff, or makes payments above prescribed limits, a web of quarterly and annual filings begins. Miss the ITR-3 due date and business losses are lost. File the wrong form and face a defect notice. Claim ITC without reconciling 2B and invite a demand. Ignore advance tax and compound interest silently accrues until assessment day.
N D Savla & Associates manages the complete annual compliance cycle for sole proprietors across Mumbai and India: ITR-3 or ITR-4 filing, GST returns, tax audit under Section 44AB where thresholds are crossed, TDS returns, professional tax and advance tax calibration. We also advise on presumptive scheme eligibility so proprietors use Section 44AD or 44ADA where it genuinely helps and maintain books where it does not.
This page explains what a sole proprietor must file each year, the deadlines and penalties that govern the cycle, and how our compliance management works.
Compliance for a sole proprietorship is anchored in the Income-tax Act and the GST law, with state-level professional tax obligations for those in Maharashtra:
- Income tax: ITR-3 (full books) or ITR-4 (presumptive scheme) by 31 July (non-audit) or 31 October (audit); advance tax in four instalments; TDS returns quarterly where deductions apply
- Tax audit: Mandatory if business turnover exceeds ₹1 crore (₹10 crore if cash transactions ≤5%); professional receipts above ₹50 lakh trigger Section 44AB
- GST: GSTR-1 by the 11th, GSTR-3B by the 20th each month (or quarterly under QRMP); GSTR-9 annually for turnover above ₹2 crore; GSTR-2B reconciliation before every GSTR-3B
- Professional tax: Employer PTEC registration and monthly deductions from staff; self-employed proprietors pay PTRC on their own income above prescribed thresholds in Maharashtra
In Detail
ITR-3 vs ITR-4 – Which Form Does a Proprietor File?
ITR-4 (Sugam) – Presumptive Scheme
ITR-3 – Full Books of Account
In Detail
What Are the Tax Audit Rules for Proprietors?
A sole proprietor carrying on business must get accounts audited under Section 44AB if turnover exceeds:
A sole proprietor in a profession notified under Section 44AA must get audited if gross receipts exceed ₹50 lakh. The auditor issues Forms 3CB and 3CD (for proprietors whose books are not required by any other law) or 3CA and 3CD (where other-law audit also applies). The tax audit report is e-filed on the portal separately, before the ITR-3 is filed, by 30 September of the assessment year.
- ₹1 crore in any financial year (standard threshold), OR
- ₹10 crore where aggregate cash receipts and payments during the year are each not more than 5% of total receipts/payments (the digital transaction relief), OR
- ₹3 crore for proprietors opting for Section 44AD presumptive scheme who declare income below the prescribed percentage
Overview
What Is the Annual Compliance Calendar for a Sole Proprietor?
⚠ A sole proprietor who opts for a presumptive scheme (Section 44AD or 44ADA) and then declares income below the prescribed percentage must maintain regular books of account and get a tax audit. Failure to audit in this situation attracts a penalty of 0.5% of turnover under Section 271B, subject to a maximum of ₹1.5 lakh.
| Filing | Form | Due Date |
|---|---|---|
| Advance tax – 1st instalment | Challan 280 | 15 June |
| GST return – outward supply | GSTR-1 | 11th of each month (or quarterly) |
| GST return – payment | GSTR-3B | 20th of each month |
| TDS return – Q1 | Form 24Q / 26Q | 31 July |
| Advance tax – 2nd instalment | Challan 280 | 15 September |
| Tax audit report (if applicable) | Form 3CB + 3CD | 30 September |
| Income tax return (no audit) | ITR-3 or ITR-4 | 31 July |
| Income tax return (audit) | ITR-3 | 31 October |
| GST annual return | GSTR-9 | 31 December (if turnover > ₹2 cr) |
| Professional tax – employer | PT return (Maharashtra) | Per schedule |
In Detail
What Are the Benefits of Managed Proprietorship Compliance?
- Correct form selection (ITR-3 vs ITR-4) prevents defect notices and protects the scheme benefit for future years
- GSTR-2B reconciliation before GSTR-3B prevents excess ITC claims and the notices they generate
- Advance tax calibrated to actual quarterly profits prevents Section 234B and 234C interest that builds silently
- Tax audit on time preserves business loss carry-forward, which proprietors with F&O and speculative losses particularly need
- AIS and Form 26AS reconciliation before ITR filing catches third-party data mismatches before the department does
- Professional tax compliance keeps the firm’s labour records clean for government tender and bank eligibility
Background
How Has Proprietor Tax Law Evolved in India?
The sole proprietor has been a taxable entity since the first income-tax legislation in colonial India. The Income-tax Act, 1961 codified the position: business income in the proprietor’s hands, taxed at individual slab rates. Presumptive taxation arrived with Section 44AD in 1994, designed to reduce compliance burden for small traders who lacked accounting infrastructure. The threshold has been revised upward progressively – from ₹40 lakh to ₹60 lakh, then to ₹2 crore, and most recently to ₹3 crore with the digital receipt condition – tracking the growth of India’s small business sector.
GST in 2017 replaced the fragmented VAT, excise and service tax framework with a single registration and return ecosystem. For the first time, proprietors in both goods and services had their compliance under one roof – which simplified the process but also raised the data-matching stakes. Today the Income Tax Department and the GST authorities exchange data, and a proprietor’s turnover reported in GST returns is compared with the ITR automatically through CASS (Computer Aided Scrutiny Selection). Consistent, reconciled reporting across both systems is not optional; it is the foundation of a dispute-free compliance record.
Our Process
What Is Our Proprietorship Compliance Process?
Annual planning and scheme review
Books maintenance or review
GST reconciliation
Tax audit (where required)
AIS and 26AS review
TDS returns
ITR filing and e-verification
Why Us
Why Choose N D Savla & Associates for Proprietorship Compliance?
Income tax forms, AIS and refund status for sole proprietors are accessed through the Income Tax Department’s portal at www.incometax.gov.in.
Scheme-or-books decision at the start of each year We model presumptive vs actual before records are committed, saving the compliance cost of changing course mid-year.
GST-income tax consistency Turnover in GSTR-1 and ITR is reconciled by us before either return is filed, eliminating CASS mismatch risk.
AIS-led filing We review AIS before the ITR, not after a notice, so mismatches are corrected at source.
Loss preservation Proprietors with F&O, speculative or capital losses receive explicit written confirmation of what is preserved and when it expires.
Year-round availability Advance tax reminders, GSTR-2B alerts and TDS deposit trackers keep compliance on schedule without waiting for year-end.
Related Services
Explore Our Wider Practice
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Frequently Asked Questions
Common Questions
Can a sole proprietor file ITR-4 even with employees and GST registration?
Yes, provided the total business turnover does not exceed ₹3 crore (with 95%+ digital receipts) or professional gross receipts do not exceed ₹75 lakh. Having employees or GST registration does not disqualify a proprietor from the presumptive scheme; the eligibility test is purely based on turnover and the nature of income. The proprietor still needs to file TDS returns for employee salary deductions and GST returns for their turnover, even under the presumptive scheme.
What is the penalty for not getting a tax audit done?
The penalty under Section 271B is 0.5% of total sales, turnover or gross receipts, subject to a maximum of ₹1.5 lakh. The penalty applies when accounts are required to be audited but the report is not furnished by the due date (30 September). Where there is a reasonable cause for the failure, the Assessing Officer has discretion to waive the penalty, but relying on this discretion is risky.
How is advance tax calculated for a sole proprietor?
Advance tax is computed on the estimated total income for the year, minus TDS expected to be deducted. If this net liability exceeds ₹10,000, instalments of 15%, 45%, 75% and 100% of the estimated tax are due on 15 June, 15 September, 15 December and 15 March respectively. Proprietors under the presumptive scheme pay the entire advance tax in one instalment by 15 March.
What happens if GST turnover and ITR turnover do not match?
The Income Tax Department cross-references GSTR-1 and GSTR-3B data with ITR turnover through the Annual Information Statement. Material discrepancies can trigger scrutiny notices under Section 143(2) or information requests under Section 133(6). Common legitimate differences (advance receipts, reverse charge, exempt supplies) should be documented and disclosed in the ITR to explain the variance before it becomes a demand.
Does a sole proprietor need to file professional tax in Maharashtra?
Yes. A proprietor who employs workers in Maharashtra must register as an employer under the Maharashtra Profession Tax Act, deduct professional tax from employee salaries per the prescribed slabs, and deposit it monthly with the state government. The proprietor themselves, if earning above the basic exemption income from the business, also pays a nominal annual professional tax in their individual capacity.
Speak with N D Savla & Associates
Chartered Accountants, Mumbai & Pune. Talk to our team about Sole Proprietorship Annual Compliance — scope, timelines and how the engagement is structured for your business.