Guides on tax, GST and compliance

Short guides from Ask The CA, an educational initiative by CA Rahul Mohite, arranged by category.

More explainers on Instagram: @asktheca

Categories

Income Tax · 5 min read · Updated October 2026

New vs old tax regime: which one suits you?

The new tax regime is the default for individuals. It has lower slab rates but removes most deductions and exemptions, such as Section 80C, 80D and HRA. The old regime keeps those deductions at higher slab rates.

For FY 2025-26, the new regime has slabs from nil up to ₹4 lakh, rising in steps of ₹4 lakh to 30% above ₹24 lakh. A rebate under Section 87A means no tax is payable where taxable income does not exceed ₹12 lakh, which is ₹12.75 lakh of salary after the ₹75,000 standard deduction.

The old regime can still work out lower if you claim large deductions, for example a home loan with interest under Section 24(b), full 80C investments, health insurance and HRA. Compare both before filing.

Key points

  • Salaried individuals can choose the regime every year at the time of filing the return.
  • Those with business income can switch back from the new regime only once.
  • Standard deduction: ₹75,000 under the new regime, ₹50,000 under the old.
  • Use the income tax calculator to compare both regimes.

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Income Tax · 4 min read · Updated October 2026

Documents you need to file your income tax return

Gathering documents before you start avoids errors and later notices. The starting point is the Annual Information Statement (AIS) and Form 26AS on the income tax portal. Together they show TDS, interest, dividends, securities transactions and high-value transactions reported against your PAN.

Match your own records with the AIS. Income reported there but missing from your return is the most common reason for a mismatch notice.

Key points

  • PAN linked with Aadhaar, and bank account pre-validated for refund
  • Form 16 from employer; Form 16A for other TDS
  • Bank interest certificates and capital gains statements from brokers or mutual funds
  • Proofs for deductions (old regime): 80C, 80D, home loan certificate, rent receipts
  • Details of foreign assets or income, if any

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Income Tax · 4 min read · Updated October 2026

Advance tax: who pays it and when

If your total tax liability for the year, after TDS, is ₹10,000 or more, you must pay it in instalments during the year as advance tax rather than in one go at the time of filing.

Resident senior citizens (60 years or more) who have no income from business or profession are exempt. Taxpayers under presumptive taxation (Sections 44AD and 44ADA) may pay the entire amount by 15 March.

Key points

  • 15 June: 15% of the estimated tax
  • 15 September: 45% (cumulative)
  • 15 December: 75% (cumulative)
  • 15 March: 100%
  • Shortfalls attract interest under Sections 234B and 234C

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Income Tax · 3 min read · Updated October 2026

The Income-tax Act, 2025: what changes from April 2026

The Income-tax Act, 2025 replaces the Income-tax Act, 1961 with effect from 1 April 2026. It aims to simplify the language and structure of the law and reduce the number of sections.

One visible change is the concept of a single “tax year”, which replaces the separate terms previous year and assessment year. Section numbers have been renumbered, so forms, notices and references will look different even where the substance is largely the same.

Key points

  • Applies from tax year 2026-27 (starting 1 April 2026)
  • Returns for FY 2025-26 are still governed by the 1961 Act
  • Section numbers differ: check the mapping before citing provisions
  • Rates and slabs are set by the annual Finance Act

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

GST · 4 min read · Updated October 2026

GST registration: who needs it and how to apply

A supplier must register under GST once aggregate turnover crosses ₹40 lakh for suppliers of goods, or ₹20 lakh for suppliers of services. Lower limits apply in some special category states. These thresholds apply in Maharashtra.

Certain persons must register regardless of turnover. These include those making inter-state taxable supplies of goods, sellers through e-commerce operators (subject to exceptions), casual taxable persons and persons liable under reverse charge.

Key points

  • Apply online on the GST portal with Aadhaar authentication
  • Keep PAN, address proof of business premises, bank details and photographs ready
  • Voluntary registration is allowed, and lets you claim input tax credit
  • Display the GSTIN at your place of business

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

GST · 5 min read · Updated October 2026

GST rate rationalisation of September 2025, explained

With effect from 22 September 2025, GST moved to a simpler structure with two main rates, 5% and 18%, and a special 40% rate for a small set of luxury and sin goods. Most items earlier taxed at 12% moved to 5%, and most at 28% moved to 18%.

Several daily-use items, such as toiletries, packaged foods and medicines, moved to lower rates. Many consumer durables, such as air conditioners and televisions, moved from 28% to 18%. Individual life and health insurance policies were exempted.

Key points

  • Check the rate for your exact HSN code, not just the category
  • Update billing software and price lists for the new rates
  • Review inverted duty structures that may affect refunds
  • Try the HSN / SAC finder for common codes

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

GST · 4 min read · Updated October 2026

GSTR-1, GSTR-3B and matching input tax credit

GSTR-1 reports outward supplies invoice by invoice. GSTR-3B is the summary return through which tax is paid. Your buyers’ input tax credit depends on what you report in GSTR-1.

Input tax credit can be claimed only when the supplier’s invoice appears in your GSTR-2B. Reconcile your purchase register with GSTR-2B every month before filing GSTR-3B.

Key points

  • Monthly filers: GSTR-1 by the 11th, GSTR-3B by the 20th
  • The QRMP scheme is available for turnover up to ₹5 crore
  • Unreconciled credit is the most common source of GST notices
  • File GSTR-9 annual return where applicable

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Company & LLP · 5 min read · Updated October 2026

Annual ROC compliance checklist for private companies

Every private limited company has annual filings with the Registrar of Companies on the MCA portal, even if it had no business during the year. Delays attract additional fees per day, which add up quickly.

The annual cycle runs from the financial year end on 31 March, through the audit and board approval of accounts, to the AGM and the filings that follow it.

Key points

  • Hold the AGM by 30 September
  • AOC-4 (financial statements) within 30 days of the AGM
  • MGT-7 / MGT-7A (annual return) within 60 days of the AGM
  • ADT-1 for auditor appointment within 15 days of the AGM
  • DIR-3 KYC for every director by 30 September
  • DPT-3 by 30 June and MSME-1 half-yearly, where applicable

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Company & LLP · 3 min read · Updated October 2026

LLP annual filings: Form 8 and Form 11

A Limited Liability Partnership files two annual forms with the ROC: Form 11 (annual return) and Form 8 (statement of account and solvency).

An LLP must have its accounts audited if turnover exceeds ₹40 lakh or partners’ contribution exceeds ₹25 lakh in the year.

Key points

  • Form 11 by 30 May
  • Form 8 by 30 October
  • Designated partners need a DIN and annual KYC
  • Income tax return due by 31 July, or 31 October if audited

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Company & LLP · 5 min read · Updated October 2026

Proprietorship, partnership, LLP or private limited?

The right structure depends on liability, compliance burden, funding plans and how profits will be taken out. A proprietorship is simple, but the owner has unlimited personal liability. An LLP gives limited liability with lighter compliance. A private limited company suits businesses planning to raise equity.

Tax treatment differs too. Companies can opt for concessional rates under Section 115BAA, while LLP profits are taxed in the LLP and partners’ share is exempt in their hands.

Key points

  • Proprietorship: quickest to start, no separate legal entity
  • Partnership: registered under the Partnership Act, unlimited liability
  • LLP: limited liability, Form 8 and 11 compliance
  • Private limited: suited to investors and ESOPs, highest compliance

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Startups & MSME · 4 min read · Updated October 2026

Registrations a new business in Pune needs

Beyond choosing a structure, a new business usually needs several registrations before it starts invoicing customers or hiring staff. Which ones apply depends on the activity, turnover and number of employees.

Key points

  • PAN and TAN for the entity
  • GST registration, where turnover or activity requires it
  • Udyam (MSME) registration
  • Shop and Establishment registration under Maharashtra law
  • Maharashtra Professional Tax: enrolment (PTEC) and, with employees, registration (PTRC)
  • Import Export Code if dealing in imports or exports
  • PF and ESIC once employee thresholds are met

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Startups & MSME · 4 min read · Updated October 2026

DPIIT startup recognition and the Section 80-IAC tax holiday

DPIIT recognition is available to a private limited company, LLP or registered partnership up to 10 years from incorporation, with turnover not exceeding ₹100 crore in any year, that is working on innovation or a scalable business model.

Recognised startups incorporated before 1 April 2030 can apply to the Inter-Ministerial Board for certification under Section 80-IAC. With that certificate, they can claim a 100% deduction of profits for any three consecutive years out of their first ten.

Key points

  • Apply on the Startup India portal
  • 80-IAC requires a separate board certificate, not just DPIIT recognition
  • Also eases certain labour and environmental self-certifications
  • Keep incorporation and turnover records ready

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Startups & MSME · 3 min read · Updated October 2026

Udyam (MSME) registration and the 45-day payment rule

Udyam registration is free and online, based on Aadhaar and PAN. Classification uses both investment in plant and machinery and turnover. From 1 April 2025, micro enterprises have investment up to ₹2.5 crore and turnover up to ₹10 crore. Small enterprises go up to ₹25 crore and ₹100 crore, and medium up to ₹125 crore and ₹500 crore.

Under Section 43B(h), a buyer can deduct amounts owed to micro and small enterprise suppliers only when paid within the time allowed: 45 days with a written agreement, or 15 days without one. Unpaid amounts are allowed only in the year of payment.

Key points

  • Registration helps with priority lending and delayed-payment protection
  • Buyers should track MSE supplier dues at year-end
  • Update Udyam details when investment or turnover changes

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

NRI Taxation · 4 min read · Updated October 2026

Residential status: are you an NRI for tax purposes?

Tax residency depends on days physically present in India, not citizenship or visa. An individual is resident if in India for 182 days or more in the year, or 60 days in the year plus 365 days in the four preceding years.

For Indian citizens or persons of Indian origin visiting India, the 60-day test becomes 120 days where Indian income exceeds ₹15 lakh. A citizen with Indian income above ₹15 lakh who is not liable to tax in any other country may be deemed resident.

Key points

  • Count days carefully, including arrival and departure days
  • NRIs are taxed in India only on income earned or received in India
  • RNOR status may apply in transition years
  • Use DTAA relief to avoid double taxation

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

NRI Taxation · 4 min read · Updated October 2026

Selling property in India as an NRI

When an NRI sells property in India, the buyer must deduct TDS under Section 195 and deposit it using a TAN. TDS applies to the capital gains, including surcharge and cess, and often to the full sale value if no certificate is obtained.

An NRI can apply under Section 197 for a lower or nil deduction certificate based on the actual capital gains. This avoids large amounts being locked up until a refund. Long-term gains may also be reinvested under Sections 54 or 54EC to save tax.

Key points

  • Buyer needs a TAN and files Form 27Q
  • Apply for a lower deduction certificate before the sale
  • Repatriation of sale proceeds needs Form 15CA / 15CB
  • File an ITR in India for the year of sale

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

NRI Taxation · 3 min read · Updated October 2026

NRE vs NRO accounts: tax and repatriation

An NRE account holds foreign earnings remitted to India. Its interest is exempt from tax in India and the balance is freely repatriable. An NRO account holds income earned in India, such as rent, dividends or pension. Its interest is taxable, with TDS.

Funds in an NRO account can be repatriated up to USD 1 million per financial year, after taxes, with the required Form 15CA / 15CB documentation.

Key points

  • Income arising in India should go to NRO, not NRE
  • Claim lower TDS under DTAA with a Tax Residency Certificate and Form 10F
  • Update your residential status with your bank on return to India

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Audit & Accounts · 4 min read · Updated October 2026

Tax audit under Section 44AB: when it applies

A tax audit is required for a business whose turnover exceeds ₹1 crore. The limit is ₹10 crore if cash receipts and cash payments are each within 5% of the total. For professionals, it applies when gross receipts exceed ₹50 lakh, or ₹75 lakh where cash receipts are within 5%.

A tax audit is also required where income is declared below the presumptive rate under certain conditions. The audit report in Form 3CA or 3CB with Form 3CD is due by 30 September, a month before the return.

Key points

  • Penalty for not getting audited: 0.5% of turnover, up to ₹1.5 lakh
  • Maintain books, bank reconciliations and fixed asset registers
  • Report GST, TDS and loan details accurately in Form 3CD

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Audit & Accounts · 4 min read · Updated October 2026

Presumptive taxation under Sections 44AD and 44ADA

Small businesses can declare profits at 8% of turnover, or 6% of digital receipts, under Section 44AD. This applies up to turnover of ₹2 crore, or ₹3 crore where cash receipts are within 5%. Books of account and audit are then generally not required.

Specified professionals such as doctors, CAs, architects and consultants can declare 50% of gross receipts as income under Section 44ADA, up to ₹50 lakh, or ₹75 lakh where cash receipts are within 5%.

Key points

  • Advance tax can be paid in a single instalment by 15 March
  • Opting out of 44AD bars re-entry for five years
  • Declaring lower profits can trigger audit requirements

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.

Audit & Accounts · 3 min read · Updated October 2026

Books of account every small business should keep

Good books are the basis of every return, loan application and audit. Even where the law does not prescribe specific books, a cash book, bank book, sales and purchase registers, and a ledger are the minimum.

Certain professionals must maintain prescribed books under Rule 6F once their receipts cross set limits. Records generally need to be preserved for at least six years.

Key points

  • Reconcile bank accounts monthly
  • Keep GST invoices and expense bills digitally
  • Separate personal and business accounts
  • Close the books within a month of the year end

General information only, not professional advice. Section references are to the Income-tax Act, 1961; corresponding provisions of the Income-tax Act, 2025 apply from 1 April 2026. Thresholds and dates may change by notification.