Nov 2, 20267 min read

Accounting Firms in Mumbai Offering Small Business Bookkeeping Services

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Last updated: 26 October 2026

Quick Answer: Small business bookkeeping in Mumbai, from CA practices, consulting firms and online services, covers monthly books, reconciliations, GST returns and audit-ready accounts. HSAG Consulting, which handles day-to-day accounting, monthly closing and MIS, is one option; compare GST experience, closing discipline and named accountants. GST registration usually starts above ₹20 lakh, or ₹40 lakh for most goods-only suppliers in Maharashtra.

Small business bookkeeping is the monthly recording and reconciliation of every sale, purchase, payment and salary, so that GST returns, TDS and the annual accounts come from one set of books. The thresholds below set the compliance on top of it.

What to check	Rule and source
GST registration	Aggregate turnover above ₹20 lakh under section 22 of the Central Goods and Services Tax Act, 2017; Maharashtra exempts most suppliers dealing only in goods up to ₹40 lakh (Notification No. 10/2019-State Tax, as amended)
Monthly GST return	Form GSTR-3B by the 20th of the following month for monthly filers; the 22nd of the month after the quarter for a quarterly filer based in Maharashtra
Tax audit	Business turnover or professional receipts above the limits in section 44AB of the Income-tax Act, 1961 (FY 2025-26) and section 63 of the Income-tax Act, 2025 (from tax year 2026-27)

What do accounting services in Mumbai include each month?

Accounting and bookkeeping services in Mumbai for a small business should cover the monthly cycle: payables, receivables, bank and card reconciliations, payroll accounting, the month-end close and MIS. Data entry alone leaves the owner filing GST returns from estimates.

Monthly closing matters because returns depend on it. Once a business registers for GST, the books must produce return figures every return period, whether monthly or quarterly. A firm that closes late pushes the owner into correcting figures after the return has gone in.

Payroll accounting belongs in the same cycle: salaries, employee social security contributions and TDS on salary post to the ledger each month. Accounting manuals then let a new person take over the records without losing the thread.

Which accounting firms in Mumbai offer bookkeeping services?

Bookkeeping services in Mumbai come from three kinds of provider: chartered accountant practices, consulting firms that add tax, payroll and company secretarial work, and software-led online services. A small business usually needs a team that also prepares GST and TDS returns.

Each row comes from that firm's own website.

Firm	Services per its website (October 2026)	Offices it lists	One stated fact
HSAG Consulting	Accounting and bookkeeping services: payables, receivables, bank and card reconciliations, payroll accounting, monthly closures and MIS; its tax advisory team handles GST registration, returns and reconciliations. It lists statutory and tax audits among its assurance services; the audit report itself is signed by a chartered accountant in practice.	Mumbai (head office), Delhi, Bengaluru and Dubai	Monthly closing supported by budgeting, variance analysis and cash flow tracking
SVT & Associates	CA-managed bookkeeping, GST accounting, payroll, TDS accounting, bank reconciliation and monthly MIS reports	Goregaon West, Mumbai	Delivers most work online across India, with in-person meetings at its Goregaon West office
AFS & Company	Outsourced accounting, financial reporting and MIS reports	Jogeshwari West, Mumbai	Lists clients across sectors such as NGOs, e-commerce, real estate and healthcare
CorporateWalla (DSG Corporate Financial Advisors LLP)	Recurring monthly bookkeeping: transaction recording, bank and ledger reconciliation, monthly profit and loss account and balance sheet, GST and TDS accounting support	Head office in Kolkata, branches in Delhi and Bengaluru; lists Mumbai among the cities it serves	Keeps the books in the software agreed for the business, including Tally Prime
SAKG & Associates (CA Arihant Lodha)	Books of accounts, financial statements, payroll processing, budgeting and MIS reporting, for startups and growing businesses	Mulund West, Mumbai, with an office in Chhindwara, Madhya Pradesh	Sends the previous month's profit and loss account, balance sheet and MIS report by the 10th

What should a small business check before signing an accounting firm?

Before signing, test the firm on five points, because each shows up later in the monthly close or the year-end audit:

GST and income tax depth: ask who prepares the returns and who answers a notice.
Monthly closing discipline: ask for a sample month-end pack with its reconciliations.
Named accountants: know who does the work, not only who sells it.
Software: confirm the team works on Tally, Zoho Books or the package you already use.
Audit readiness: check how the books reach the auditor once turnover crosses the audit limit.

For a national view, see the guide to accounting firms that SMEs in India compare.

When do GST registration, monthly returns and the tax audit start?

GST registration is compulsory once aggregate turnover in a financial year exceeds ₹20 lakh under section 22 of the Central Goods and Services Tax Act, 2017. Form GSTR-3B then follows for every tax period. A tax audit follows once business turnover crosses the tax audit limit.

Maharashtra exempts a supplier engaged exclusively in goods from registration up to ₹40 lakh, under section 23(2) of the Maharashtra Goods and Services Tax Act, 2017, through Notification No. 10/2019-State Tax. The exemption excludes listed goods, persons who must register under section 24 and persons registered voluntarily or keeping an existing registration.

Form GSTR-3B is due by the 20th of the following month for monthly filers, or the 22nd of the month after the quarter for a quarterly filer based in Maharashtra, as the GST Portal user guide for Form GSTR-3B sets out. The compliance calendar for Indian companies tracks any date the Government extends by notification.

The tax audit limits, including the ₹50 lakh test for a professional practice, sit in section 44AB of the Income-tax Act, 1961 for FY 2025-26 and in section 63 of the Income-tax Act, 2025 from tax year 2026-27. The tax audit applicability guide sets out each test.

What sets the scope and cost of outsourced accounting for small business?

Outsourced accounting for small business suits an owner whose volume does not justify a full-time accountant, and its cost follows the work in the books, not a standard rate. Accounting outsourcing companies in Mumbai usually fix the scope only after seeing a sample month.

Six factors set that scope:

Transactions: the number of sales, purchase and bank entries each month.
Registrations: how many GSTINs and branches file returns.
Payroll: the headcount whose salaries, contributions and TDS post monthly, and whether payroll processing is included.
Stock: whether inventory and job work are tracked.
Software: whether the team works in your existing package or moves the data.
Backlog: the months of unreconciled entries to rebuild first.

Factory owners carry extra inventory and job-work entries, which the guide to outsourced accounting for Mumbai manufacturers sets out.

Common Mistakes When Choosing Bookkeeping Services in Mumbai

Owners make the costliest bookkeeping mistakes twice: when choosing, by picking a firm on price and leaving the scope unwritten, and after signing, by letting reconciliations slip. Each one surfaces later as a GST notice, a revised return or a late audit, often long after its cause:

Choosing on price alone: cheaper engagements often drop reconciliations, and the gap appears at return filing.
No written scope: without a monthly deliverable list, the close drifts and returns go late.
Counting only own sales: under section 22, aggregate turnover also includes supplies made on behalf of principals, and section 24(vii) makes an agent supplying for other taxable persons register whatever its turnover.
Books not audit ready: once turnover crosses the tax audit limit, scrambled records cost more to repair than to maintain.
Skipping bank reconciliation: unreconciled bank and card statements quietly break the month-end close.
Filing from estimates: a return built on unclosed books carries figures that the final accounts later contradict.

Consider a hypothetical Mumbai trading business that picked a firm on price and let three months of reconciliations lapse. Returns went in from rough figures, the purchase register never matched the suppliers' filings, and a notice followed.

What happens after you sign an accounting firm?

After signing, the firm agrees the scope in an engagement letter, takes access to the bank statements and software, reconciles opening balances and runs its first month-end close. The owner approves each GST return before it is filed with the business's EVC or DSC, and keeps the software licence and logins in the business's name.

From the second month, expect a regular monthly pack: the reconciliations, the MIS report and a list of pending documents.

At year end, the closed books go to the auditor in time for the tax audit report, due by the specified date.

Discuss your small business books with an accounting team

To discuss the scope of your bookkeeping, share your details through the contact page, and the team will contact you.

Frequently Asked Questions

Which monthly check do accounting and bookkeeping services for small businesses in Mumbai often miss?

Matching the purchase register with Form GSTR-2B. Ledger entries and bank reconciliations are routine, but the GST Portal auto-populates Form GSTR-3B from the business's own GSTR-1 or GSTR-1A and the system-generated GSTR-2B built from its suppliers' filings, so a bill a supplier never reported surfaces there first.

Who is responsible for a GST return my accountant files?

The business is. Section 48(2) of the Central Goods and Services Tax Act, 2017 lets a registered person authorise an approved GST practitioner to furnish returns such as Form GSTR-3B. Section 48(3) still keeps responsibility for the correctness of every figure with the registered business on whose behalf the return is filed.

How soon must a business apply for GST registration after crossing the limit?

Within 30 days of becoming liable, under section 25(1) of the Central Goods and Services Tax Act, 2017. Section 40 of the same Act then requires the first return after registration to declare the outward supplies made from the date of liability, as the GST Portal user guide explains with a worked example.

What happens if GSTR-3B is filed late?

Interest and a late fee follow. Section 50 of the Central Goods and Services Tax Act, 2017 charges interest at a notified rate up to 18% a year. On a late return filed before any section 73, 74 or 74A proceedings, interest runs only on tax paid from the electronic cash ledger. Section 47 adds a daily late fee.

Can a small trader in Mumbai pay GST under the composition scheme?

Yes, if its aggregate turnover in the preceding financial year was up to ₹1.5 crore under Notification No. 14/2019-Central Tax, and it meets the section 10(2) conditions, such as making no inter-State outward supplies. It then pays tax at a fixed rate on turnover, cannot collect GST or claim input tax credit, and files Form GST CMP-08 quarterly.

Which GST accounts must a small business keep, and where?

A true and correct account of production, inward and outward supplies, stock, input tax credit availed and output tax, under section 35(1) of the Central Goods and Services Tax Act, 2017. The accounts sit at the principal place of business on the registration certificate, each additional place keeps its own, and electronic records are allowed.

Which goods suppliers in Mumbai do not get the ₹40 lakh GST limit?

Suppliers of ice cream, pan masala, tobacco, fly ash bricks, aggregates and blocks, building bricks, bricks of fossil meals and earthen or roofing tiles, under the Table in Maharashtra's Notification No. 10/2019-State Tax. Notification No. 15/2022-State Tax, in force from 18 July 2022, reworded the fly ash entry.

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About the Author

Bhairavi Shah

CA Bhairavi Shah is a Chartered Accountant with more than 20 years in taxation, audit and compliance. She is Director, Practice and leads direct tax litigation at HSAG, and has been a Partner at Haren Sanghvi & Associates since 2023. She has conducted tax audits, financial due diligence and internal audits, represented clients before the Income Tax Authorities and Commissioner (Appeals), and advised SMEs on accounting systems, TDS compliance and company set-up.