Key takeaways
- One proprietor can run several activities under the same PAN; most changes are updates to existing registrations.
- Add the new goods or services to your GST registration, and add a new place of business if the activity runs from another location.
- Adding services can lower your GST registration limit, and some activities are not allowed under the composition scheme.
- The new activity may need its own licence, such as FSSAI for food, before you start.
Many proprietors grow by adding something new: a shop starts repairs, a consultant adds training, a trader begins online sales. Because a proprietorship is simply you doing business, you do not need a new entity for each activity. But your registrations must reflect what you now do. This guide explains how to add a new business activity to a proprietorship without tripping over GST, licences or tax rules.
Same PAN, more than one activity
Everything a proprietor does in business runs under the proprietor's own PAN. You can use the same trade name or a different one for the new activity. Either way, the income goes into your one income tax return, and turnover from all activities is added together for GST and tax limits.
GST: the main updates
Add the new goods or services
Update the list of goods and services in your registration through Form REG-14 on the GST portal, using the correct HSN codes for goods and SAC codes for services. Under the rules in force from 1 November 2026, this takes effect on filing.
Add a place of business if needed
If the new activity runs from a new location in the same state, such as a workshop or warehouse, add it as an additional place of business. Our guide on GST registration amendment covers the process.
Check the effect on your registration limit
The higher Rs 40 lakh limit applies only to businesses that supply goods alone. If you start supplying services, the Rs 20 lakh limit applies to your combined turnover. A business that was below the limit can become liable to register. See GST registration limit.
Check whether composition still fits
If you are under the composition scheme, confirm the new activity is allowed. Composition taxpayers cannot make inter-state supplies of goods, and cannot supply services through e-commerce operators. Since 1 October 2023 they can sell goods through e-commerce platforms within their own state, subject to conditions. Most service providers have a separate, limited scheme. If the new activity is not allowed, you must opt out and move to the regular scheme. Read composition vs regular scheme.
Udyam: update the activity
Log in to the Udyam portal and add the new activity with its NIC code. Your Udyam number stays the same. Your classification as micro, small or medium depends on your total investment and turnover, not on the number of activities.
Licences for the new activity
| If the new activity involves | Check for |
|---|---|
| Food: making, selling, storing or serving | FSSAI registration or licence, or adding the new food category to your existing one |
| Imports or exports | Importer Exporter Code from DGFT |
| Packaged goods | Legal metrology registration for packers or importers |
| Manufacturing | Pollution control consent, and a factory licence above the limits |
| Medicines or health services | Drug licence or clinical establishment registration |
| A different trade at the shop | A change in the trade licence category with your local body |
Industry licences must be in place before you start the activity, not after. Our business licences checklist has more detail.
Income tax points to check
- Presumptive taxation: the business and professional schemes, now in Section 58 of the Income-tax Act, 2025, have different rates and limits. If you add a profession to a trading business, or the other way round, check which scheme applies to each income. See our guide on presumptive taxation.
- Combined limits: turnover from all your businesses is added together for the tax audit limit and for books of accounts.
- Separate records: keep separate sales and expense records for each activity, so you can see which one makes money and support your return.
- TDS: the new activity may bring new payments, such as rent or contractor payments, on which you must deduct tax.
Bank and payments
Tell your bank about the new activity so its records match how the account is used, and update the business category with payment gateways and marketplaces. If the new activity has very different cash flows, a separate current account can make tracking easier.
When a separate entity makes sense
As a proprietor, you are personally liable for the debts of every activity. If the new activity carries more risk, such as manufacturing, large contracts or a partner joining, consider running it through an LLP or a company. Read when to convert a proprietorship into an LLP or company.
Checklist
- GST: new HSN or SAC codes added, place of business updated, limit and composition checked
- Udyam: new NIC code added
- Licences for the new activity obtained before starting
- Bank and payment platforms updated
- Separate records set up for the new activity
- Tax scheme and TDS position reviewed
Our proprietorship team can update your GST and Udyam records and line up the licences the new activity needs.
This article explains the general position under GST and income tax law as on the date shown. Licence needs depend on your activity and state.
Frequently asked questions
Can one proprietor run two different businesses?
Yes. Both businesses belong to you and run under your PAN. Their income is reported together in your income tax return, and their turnover is added together for GST and tax audit limits.
Do I need a new GST registration for the new activity?
Not if it is in the same state. Add the new goods or services and any new place of business to your existing registration. A separate registration for a separate place of business in the same state is possible, subject to the rules.
Will my Udyam number change?
No. Update the activity and NIC codes on the Udyam portal; the registration number stays the same.
Can I keep using the composition scheme?
Only if the new activity is allowed under it. For example, composition taxpayers cannot make inter-state supplies of goods or supply services through e-commerce operators, although selling goods online within their own state has been allowed since 1 October 2023. If the new activity is not allowed, you must move to the regular scheme.