Books of Account: What to Keep and for How Many Years

Indian companies must keep their books of account for a minimum of 8 financial years, while several tax and GST provisions independently require 6 years of retention - and when these periods overlap or an investigation is pending, the longer period effectively applies.

Key facts at a glance

• Companies Act, 2013 requires books of account to be preserved for not less than 8 financial years immediately preceding the current year.
• Income-tax law generally requires books and specified documents to be kept for at least 6 years from the end of the relevant assessment year.
• GST law requires records to be retained for 72 months (6 years) from the due date of filing the annual return for that year.
• Books must be kept on an accrual basis using double-entry bookkeeping, per the Companies Act.
• Electronic books are permitted if kept accessible, in original format, and backed up on a server in India.
• Books are normally kept at the registered office, unless the board resolves otherwise and informs the Registrar of Companies.
• Officers in default can face fines and, in some cases, imprisonment for failing to maintain proper books.

What exactly must be retained

"Books of account" is a broad term. It covers cash books, ledgers, journals, records of all receipts and payments, sales and purchase registers, and records of assets and liabilities. For companies engaged in production, processing, manufacturing or mining, it also includes cost records where cost audit rules apply.

Supporting documents matter as much as the ledgers themselves. Invoices, bank statements, purchase orders, contracts, payroll records, and expense vouchers are the evidence that backs every entry, and auditors and tax officers will ask for these alongside the books.

Statutory vs supporting records

There is a difference between the statutory minute books and registers a company must maintain (board minutes, statutory registers, share transfer records) and the accounting books of account discussed here. Both have retention obligations, but the periods and the governing law can differ, so it helps to track them separately in a records register.

How long to keep what

Different laws set different retention clocks, and a business subject to more than one law should follow whichever period is longest for a given document.

Where an assessment, appeal, revision, investigation, or any other proceeding is pending, both tax law and the Companies Act generally require records to be kept until that proceeding is finally disposed of, even if the standard retention window has technically expired.

Electronic records: what the rules actually require

Companies are allowed to keep books of account wholly or partly in electronic form. The conditions are specific: the electronic records must remain complete and unaltered, be retrievable in a legible and usable format for the retention period, and a proper backup must be kept on servers physically located in India, even if a cloud accounting tool's primary infrastructure sits abroad.

If the electronic books are maintained by a third-party service provider outside India, the company must still ensure an India-based backup and be able to produce the records to the Registrar, statutory authorities or auditors when asked.

Where books must be kept

The default position is the company's registered office. If the board decides to keep all or some books at a different place in India, it must pass a board resolution and file the address with the Registrar of Companies within the prescribed time. Keeping books outside India is not generally permitted, other than limited backup copies.

Penalties for non-compliance

Failure to maintain proper books, or destroying them before the retention period ends, exposes the company and the officers responsible - typically the managing director, whole-time director in charge of finance, or in their absence any director - to monetary penalties under the Companies Act. Separately, an inability to produce records during a tax scrutiny or GST audit can lead to adverse inferences, best-judgment assessments, or denial of input tax credit claims, which is often more costly than the statutory penalty itself.

Practical retention checklist

• Set retention flags in your accounting software so records are not auto-purged early.
• Keep a documents register listing what is stored, where, and the applicable minimum retention date for each category.
• For records tied to a pending assessment, appeal or dispute, extend retention until that matter is fully closed, regardless of the standard period.
• Confirm your electronic accounting provider maintains an India-located backup.

If you are not sure whether your company's current record-keeping practices meet these thresholds, ComplianceCheck's state-wise compliance assessment can give you a clear picture in a few minutes.

Sources

• Ministry of Corporate Affairs - mca.gov.in
• Income Tax Department - incometax.gov.in
• Goods and Services Tax portal - gst.gov.in
• Registrar of Companies (respective state) via MCA

This guide is general information, not legal advice. Requirements vary by state, sector and headcount - confirm specifics with a compliance professional or the relevant authority.