Published 15 September 2026
What the standard products do well
It is worth being specific about this, because the honest answer for most small businesses is that they should not be commissioning software at all.
TallyPrime handles stock as an extension of accounting, which is exactly right if your main question is what the stock is worth and your accountant already lives in Tally. Zoho Inventory handles stock as an extension of order management, which is right if your main question is what you can promise a customer. Both handle multiple warehouses, both do purchase orders and reorder levels, and both cost a small fraction of any custom build.
If that describes your situation, the rest of this article is not for you, and a developer who tells you otherwise is selling.
The specific rules that break standard products
Standard inventory products model stock as countable interchangeable units in a place. Every one of the situations below breaks one of those assumptions, and each is a common reason businesses end up running a parallel spreadsheet alongside software they are paying for.
- Batch and expiry. Pharmaceuticals, food, chemicals and cosmetics need stock picked by expiry order and traced by batch when something goes wrong. Partial support for this is worse than none, because it looks like it works.
- Serial numbers under warranty. Electronics and equipment where you must know which specific unit went to which customer, and when its warranty ends.
- Unit conversion. Buying in kilograms and selling in pieces, or buying in bales and issuing in metres. Products that support a single unit per item force a manual reconciliation somewhere.
- Job consumption. Material issued against a work order rather than sold — construction, fabrication, workshops. The stock leaves without a sale, and the cost has to land on the job.
- Assembly and kitting. Components consumed to produce a finished item, where both the components and the output are stock you track.
- Stock with a third party. Goods with a technician, on approval with a customer, or at a job site — yours, not sold, and not in your warehouse.
The cost comparison
Zoho Inventory's paid tiers run from a few thousand rupees a month depending on order volume and users. Tally is a perpetual licence in the tens of thousands with an annual maintenance component. Either is comfortably under ₹1 lakh a year for most small businesses.
A custom inventory system typically starts around ₹3 lakh for single-location stock control and runs towards ₹15 lakh for multi-warehouse systems with purchasing, batch tracking and integration into accounts.
So the build has to save several years of licence fees or solve a problem the product cannot. In practice it is almost always the second — the businesses for whom this works are not saving on software, they are eliminating the manual process that sits beside the software.
You can usually keep Tally
This is the part most often missed. Choosing custom inventory software does not mean replacing your accounting, and it usually should not.
The common arrangement is a custom system handling stock movements, purchasing and job consumption — the parts that are specific to your operation — pushing the resulting entries into Tally so your accountant keeps working in the software they know. You get a system that matches how you actually hold stock, and nobody in finance has to learn anything.
If a developer proposes replacing your accounting as part of an inventory project, ask why. Occasionally there is a good reason. More often it is scope that benefits the quote.
How to tell which you are
One question settles it in most cases: is there currently a spreadsheet beside your stock system, and what is in it?
If there is no spreadsheet, your product fits and you should leave it alone. If the spreadsheet exists but only holds things that are genuinely one-off, it is not worth ₹5 lakh to eliminate. If the spreadsheet is where the real stock position lives, and the software holds an approximation of it, you have already outgrown the product and are paying for both.