Inventory Management Software Cost India 2026: ₹1.5L-₹40L

Founder & Lead Developer, Codingclave · 200+ projects since 2017

Published June 9, 2026 15 min read

inventory management software cost Indiainventory software pricing India 2026custom inventory build IndiaZoho Inventory alternativesWMS development cost India

Inventory Management Software Cost India 2026: The Honest Pricing Guide

If your business is bleeding ₹5-50L/year on stockouts, dead stock, mis-shipments, and GST reconciliation chaos — you're not alone. I've audited 40+ Indian SMB inventories in the last 18 months. The pattern is identical: an aging Tally setup, three Excel files nobody trusts, a WhatsApp group of warehouse staff, and a founder who can't tell you how much working capital is actually locked in stock right now.

I'm Ashish Sharma, founder of Codingclave. Since 2021 we've shipped 12+ custom inventory + WMS systems for Indian businesses — D2C brands doing ₹20-80Cr, manufacturers, pharma distributors, jewelry retailers, and one auto-parts chain across 14 cities. This guide is the real INR pricing + decision framework I'd give a founder over WhatsApp.

The headline numbers: SaaS inventory software in India costs ₹2,299/month (Zoho Inventory) to ₹20,000/month (Unicommerce omnichannel), while custom-built systems run ₹1.5L (lean MVP) to ₹40L (enterprise WMS). The right answer depends entirely on turnover, SKU complexity, and workflow uniqueness — not on what any vendor's sales team tells you.

TL;DR — Inventory Software Cost by Business Profile

Business Profile	Recommended Path	Real Cost (Year 1)	Timeline	Who It's For
Kirana / small retail under ₹2Cr	Vyapar mobile or Refrens free	₹0-₹4K/year	Same day	Single-shop GST billing
SMB ₹2-15Cr, 1-3 users	TallyPrime + Excel reports	₹22,500 one-time	1-2 weeks	Standard wholesale/retail
Growing SMB ₹15-50Cr	Zoho Inventory or Marg ERP	₹30K-₹1.5L/year	2-4 weeks	Multi-user, multi-location
D2C ₹20-100Cr omnichannel	Unicommerce or EasyEcom SaaS	₹1.5L-₹4L/year	3-6 weeks	Amazon/Flipkart/Shopify sync
Manufacturer ₹15-50Cr with BOM	ERPNext customized	₹3L-₹8L one-time	8-14 weeks	Multi-level BOM, WIP
₹50-150Cr with unique workflows	Custom Growth/Full tier	₹6L-₹20L upfront	12-24 weeks	Manufacturing, pharma, jewelry
Enterprise ₹150Cr+ multi-entity	Custom Enterprise or SAP B1	₹22L-₹50L upfront	26-40 weeks	Multi-region, ERP-grade

The simple rule I give founders: under ₹50Cr turnover, SaaS almost always wins. Above ₹100Cr, custom usually wins. ₹50-100Cr is the genuinely hard middle where it depends on workflow complexity.

SaaS vs Custom-Built: The Real INR Breakdown

SaaS Inventory Software Pricing in India 2026

Verified pricing as of June 2026 (cross-checked against vendor sites + our client invoices):

Software	Entry Price	Mid Tier	Top Tier	Best For
Zoho Inventory	Free (50 orders/mo)	₹2,299/mo (Standard)	₹5,499/mo (Professional)	Online sellers, D2C under ₹20Cr
TallyPrime	₹22,500 one-time (Silver)	₹67,500 one-time (Gold multi-user)	₹54,000/year (Gold subscription)	Indian SMB classic, accounting-led
Vyapar	₹3,399/year mobile	₹4,999/year desktop	₹13,999/3 years premium	Kirana, small retail, mobile-first
Marg ERP	₹8,400/year basic	₹25,000/year pro	₹1L+/year enterprise	Pharma, FMCG distribution
Busy Accounting	₹9,999 one-time (Basic)	₹19,999 one-time (Standard)	₹39,999 one-time (Enterprise)	Wholesale, distribution
Unicommerce	₹50,000/year (starter)	₹1.5L-₹3L/year	₹5L+/year (enterprise)	Omnichannel D2C, marketplace sync
EasyEcom	₹40,000/year	₹1.2L-₹2.5L/year	₹4L+/year	D2C, returns + RTO heavy
Browntape	₹35,000/year	₹1L-₹2L/year	₹3L+/year	Mid-D2C, courier integration
Odoo Inventory	Free (community)	₹1,800/user/mo (online)	₹3,500/user/mo (custom)	Manufacturing, complex workflows
SAP Business One	₹2L-₹3L/user/year	₹15-30L/year mid	₹40L+/year enterprise	Above ₹100Cr manufacturing
ERPNext	Free (self-hosted)	₹1,500/user/mo cloud	₹3L+/year managed	Manufacturing, open-source preference

Custom-Built Inventory Software Pricing

Real INR ranges from our deliveries + Indian agency benchmarks:

Build Profile	Cost Range	Timeline	What's Included
Lean MVP	₹1.5L-₹4L	6-10 weeks	Single warehouse, web dashboard, GST invoice, barcode in/out, basic reports
Mid-tier (Growth)	₹4L-₹15L	10-18 weeks	Multi-warehouse, mobile picker app, POS sync, accounting integration, e-invoicing
Full-featured	₹15L-₹25L	18-26 weeks	Above + omnichannel marketplace, courier API, advanced WMS, role-based access
Enterprise WMS	₹25L-₹40L+	26-40 weeks	Above + multi-entity, AI forecasting, ERP sync, custom hardware integration

Component-by-Component Cost Breakdown

For founders who want to see exactly where ₹10L of a mid-tier custom build goes:

Frontend (Admin Dashboard) — ₹2.2L-₹3L

Next.js or React-based admin panel for warehouse managers + back-office. Modules: dashboard, stock master, purchase orders, sales orders, GRN, returns, reports. 5-7 weeks. Includes responsive design, role-based access, basic analytics.

Backend API + Database — ₹2L-₹2.8L

Node.js/Express or Django/DRF with PostgreSQL or MySQL. Handles inventory math (FIFO/FEFO/LIFO costing), multi-location stock, transactions, audit trail, REST/GraphQL APIs. 4-6 weeks. Foundation that determines scalability ceiling — cheap-out here and you regret it within 18 months.

Mobile App for Warehouse Pickers — ₹1.8L-₹2.5L

Android-first (90% of Indian warehouse staff are on Android). React Native or Flutter. Barcode scanning via camera or hardware scanner, pick lists, putaway, stock count, returns. 4-6 weeks. Offline-first design is non-negotiable — warehouse Wi-Fi is unreliable everywhere.

GST + E-Invoicing Integration — ₹40K-₹1L

IRP API integration for B2B invoices above ₹5Cr turnover, e-way bill for inter-state, HSN/SAC auto-tax, GSTR-1 export. Via GSP (ClearTax, Masters India) ₹40K-₹60K + ₹15-40K/year recurring; direct IRP API ₹80K-₹1L one-time.

Accounting Integration — ₹50K-₹1L

Tally Prime XML connector, Zoho Books REST API, or QuickBooks API. Sync sales, purchases, payments, ledgers. Tally is the trickiest because XML schema is finicky — budget extra QA time.

Barcode / Label Printing — ₹30K-₹60K

Label template designer, Zebra ZPL/EPL print integration, batch label generation. Hardware (Zebra ZD230 ₹14K + Honeywell scanner ₹4K) sold separately.

Marketplace + Courier Integrations — ₹1L-₹3L per channel

Amazon SP-API, Flipkart Seller API, Myntra Partner Portal, Shopify Admin API, Shiprocket/Delhivery/Bluedart courier APIs. Each integration ₹40K-₹80K depending on workflow depth.

Hosting + DevOps + Initial Support — ₹50K-₹1L

AWS Mumbai region, Hetzner, or Hostinger VPS. Includes setup, CI/CD pipeline, monitoring (Sentry), backups, and 3 months post-launch support.

Total for Mid-Tier Build

₹8L-₹12L typical, ₹15L if you add marketplace + courier integrations from day one.

Hidden Costs That Blow Up Buyer Budgets

After auditing 40+ inventory rollouts, these are the cost surprises that wreck timelines and trust:

1. Barcode + Scanner Hardware (₹15K-₹3L)

The software vendor never quotes this. Real costs: thermal printer (Zebra ZD230 ₹14K, TSC TTP-244 ₹9K), scanner (Honeywell Voyager 1450g ₹4K, Zebra DS2208 ₹6K), mobile computer (Zebra TC22 ₹35K, Honeywell EDA52 ₹40K). For a 3-warehouse setup with 8 pickers, budget ₹2-3L hardware.

2. Data Migration From Tally/Excel (₹40K-₹2L)

Five years of Tally data has duplicate SKUs, missing HSN codes, wrong GST rates, broken stock balances. Cleaning this takes 2-4 weeks. Most agencies hide this in the quote then bill it as change request. Budget 5-10% of build cost.

3. Staff Training (₹30K-₹1.5L)

Multi-day on-site training across multiple warehouses, multi-language manuals (Hindi + regional), ongoing helpdesk first 3 months. If you skip this your ₹10L system gets used at 30% capacity.

4. SaaS Add-On Tax (₹50K-₹3L/year)

The trap: Unicommerce's base plan looks reasonable, then you discover marketplace connectors are ₹3-15K/year extra per channel, shipping integration is ₹2-10K/month, advanced reporting is a separate SKU. Real total often 2-3x the headline price.

5. Customization Fees on SaaS (₹15K-₹50K per request)

Every custom report, workflow tweak, or integration on Zoho/Marg/Unicommerce gets billed. Over 3 years you can easily spend ₹2-5L on customizations — at which point custom build was cheaper.

6. Annual Maintenance on Custom Build (15-20% of build cost)

GST rule changes (3-6 times a year), security patches, OS/dependency updates, bug fixes. A ₹10L build costs ₹1.5-2L/year to maintain properly. Agencies that quote "₹40K/year AMC" cut corners — you'll feel it in year 2.

7. Scaling Sticker Shock

When you cross SKU/user/order thresholds on SaaS, jumps are sharp. Zoho Inventory Standard to Professional is a 2.4x price jump (₹2,299 → ₹5,499). Unicommerce starter to growth is 3-4x.

Cost by Feature Set: Basic, Advanced, Enterprise

Basic Tier (₹1.5L-₹4L custom or ₹3-12K/year SaaS)

Single warehouse, single user or small team
GST-compliant invoicing + purchase entries
Barcode in/out (manual data entry acceptable)
Stock master with HSN codes
Basic stock + sales reports
Tally/Zoho Books sync optional

Who it's for: Kirana, single-shop retail, small wholesale under ₹10Cr.

Advanced Tier (₹6L-₹18L custom or ₹50K-₹3L/year SaaS)

Multi-warehouse with bin/rack management
Mobile picker app with barcode scanning
POS sync for retail
Sales order + purchase order workflows
E-invoicing + e-way bill (mandatory above ₹5Cr)
Marketplace sync (Amazon, Flipkart, Shopify)
Courier integration (Shiprocket, Delhivery)
Returns + RTO handling
Reorder points + low-stock alerts
GST reconciliation dashboards

Who it's for: D2C brands ₹20-100Cr, distribution chains, mid-size manufacturers.

Enterprise Tier (₹20L-₹40L+ custom or ₹5L-₹50L/year SaaS)

Multi-entity (separate GSTs, inter-company transfers)
Advanced WMS (putaway optimization, wave picking, cycle counting)
AI demand forecasting + auto-replenishment
Multi-level BOM + WIP tracking (manufacturing)
Batch + expiry + FEFO (pharma, food)
ERP integration (SAP, Oracle, Dynamics)
Custom hardware integration (Cubiscan, RFID, conveyor systems)
BI/analytics integration (Power BI, Metabase)
Dedicated support SLAs

Who it's for: ₹100Cr+ manufacturers, multi-region distributors, enterprise retail.

Real Anonymized Project Example

Client: A Pune-based D2C personal care brand doing ₹28Cr revenue, 1,400 SKUs across 3 categories, 2 warehouses (Pune + Hyderabad), selling on own Shopify + Amazon + Flipkart + Myntra + Nykaa.

Pain points:

Overselling on Amazon during Diwali sale (₹14L losses in cancellations + brand penalties)
Pune warehouse running out of bestsellers while Hyderabad had dead stock
8 hours/day of manual order downloads, label printing, courier assignment
GST e-invoicing manual via ClearTax web interface

Decision: Considered Unicommerce (₹2.4L/year quoted) and custom build. Went with custom because they wanted (1) Shopify-to-warehouse routing logic Unicommerce didn't support, (2) integration with their existing barcode scanners, (3) ownership of customer data for retention marketing.

Build scope (16 weeks, ₹11.8L):

Backend API + PostgreSQL (4 weeks, ₹2.4L)
Admin dashboard with multi-warehouse stock + routing rules (5 weeks, ₹2.8L)
Mobile picker app with barcode + pick list (4 weeks, ₹2L)
Shopify + Amazon SP-API + Flipkart + Myntra + Nykaa connectors (4 weeks, ₹2.4L parallel)
Shiprocket + Delhivery integration + AWB auto-print (2 weeks, ₹70K)
GST e-invoicing via ClearTax GSP (1.5 weeks, ₹50K)
Tally Prime sync (1 week, ₹60K)
Hosting + monitoring + 3-month support (₹60K)

Year 1 total: ₹11.8L build + ₹1.5L hardware (printers, scanners, 6 picker tablets) + ₹80K data migration = ₹14.1L.

Year 2-5 maintenance: ₹2L/year average (GST changes, marketplace API updates, occasional new feature).

Outcome: Zero overselling incidents in next Diwali sale. Warehouse routing rebalanced inventory weekly — dead stock fell from ₹38L to ₹12L. Picker app cut picking time 40%. ROI break-even: 11 months on the build cost alone.

5-year TCO comparison:

Custom build path: ₹14.1L year 1 + ₹8L over years 2-5 = ₹22.1L
Unicommerce path: ₹2.4L/year + ₹3L customizations + ₹1.5L hardware = ~₹17L

Unicommerce would have been ₹5L cheaper on paper. They went custom anyway because data ownership + workflow control mattered more. Not every founder makes that trade-off — and that's fine.

SaaS Subscription Deep Dive: What Each Indian Tool Actually Costs

Zoho Inventory — Best Free + Affordable Tier

Free: 50 orders/month, 1 user, basic GST, 1 warehouse
Standard ₹2,299/mo: 1,500 orders/mo, 2 users, basic CRM, 2 warehouses
Professional ₹5,499/mo: 7,500 orders/mo, 5 users, serial/batch tracking, multi-currency
Premium ₹8,499/mo: 25,000 orders/mo, 10 users, advanced reports, branded portals

Annual savings ~16% if paid upfront. Best for online sellers, D2C under ₹20Cr, businesses on Zoho ecosystem (Books, CRM, Desk).

TallyPrime — India's Default

Silver (single user) ₹22,500 one-time + ₹4,500/year TSS (Tally Software Services)
Gold (multi-user) ₹67,500 one-time + ₹13,500/year TSS
Gold Subscription ₹54,000/year (multi-user, includes TSS)

Comprehensive accounting + inventory + GST. The most-deployed software in Indian SMBs. Weakness: clunky UI, no native mobile, custom reports need TDL developer (₹5-15K per report).

Marg ERP — Pharmacy + FMCG King

Basic ₹8,400/year
Pro ₹25,000/year — adds expiry tracking, scheme management
Enterprise ₹1L+/year — multi-branch, advanced WMS

Marg dominates pharmacy distribution + FMCG wholesale. Free demo data setup. Weakness: dated UI, Windows-only.

Unicommerce — Omnichannel D2C Standard

Starter ₹50,000/year — 1 channel, basic features
Growth ₹1.5L-₹3L/year — multi-channel, courier integration
Enterprise ₹5L+/year — custom workflows, dedicated CSM

Pre-built integrations with Amazon, Flipkart, Myntra, Nykaa, Ajio, Shopify, WooCommerce, Magento. Best omnichannel SaaS in India for ₹20-100Cr D2C.

EasyEcom — Returns + RTO Specialist

Starter ₹40,000/year
Growth ₹1.2L-₹2.5L/year
Enterprise ₹4L+/year

Strong on returns management + RTO predictions (critical for fashion + lifestyle D2C). Slightly cheaper than Unicommerce at similar scale.

Odoo Inventory — Manufacturing-Friendly

Community (self-hosted) Free
Online ₹1,800/user/mo
Custom hosted ₹3,500/user/mo+

Best free option for manufacturing workflows (BOM, WIP, MRP). Implementation usually ₹2-8L via Odoo partners. Total realistic cost for 20-user manufacturer: ₹4-8L year 1, ₹2L/year ongoing.

ERPNext — Open-Source Manufacturing

Self-hosted Free (community)
Frappe Cloud ₹1,500/user/mo (managed)
Enterprise managed ₹3L+/year

Best for manufacturers + service companies wanting full ERP without SAP/Oracle pricing. Customization via Python (₹3-8L typical). Active Indian community.

SAP Business One — Enterprise Default

₹2-3L/user/year typical license
Total deployment ₹15-50L including implementation, training, customization

Best for ₹100Cr+ manufacturers needing global ERP standards. Heavy implementation. Usually deployed via SAP partners.

When to Build vs When to Buy SaaS

Buy SaaS If:

Turnover under ₹50Cr with standard workflows
Want launch in 1-6 weeks
Don't have IT team or budget for ongoing maintenance
Marketplace integrations matter (Amazon, Flipkart, etc. — vendors pre-built)
Standard GST + accounting workflows
Want predictable monthly cost over upfront capex

Build Custom If:

Turnover above ₹100Cr where SaaS per-user fees compound
Unique workflows: manufacturing BOM, pharma batch traceability, jewelry weight/karat, auto parts fitment
Multi-entity (separate GSTs, inter-company transfers) with complex flows
Need integration with proprietary hardware SaaS doesn't support
Want full data ownership for ML/AI, retention marketing, BI
Plan major scale-up (3-5x) in next 2-3 years
Already burned ₹5L+ on SaaS customization fees with no end in sight

The ₹50-100Cr Middle Ground

This is where I have the longest WhatsApp conversations with founders. The honest answer: try SaaS first. Run Unicommerce or Zoho Inventory Professional for 6-12 months. Document every workflow gap. If by month 12 you have a clear list of 8-12 hard limits costing ₹3-8L/year in workarounds — then custom makes sense. If your list is fuzzy or fixable with light customization, stay SaaS.

I've talked 4 founders out of custom builds in the last year because their gaps were actually fixable with better SaaS configuration + 1 well-built Zapier integration. Saved them ₹8-15L each.

The Codingclave Inventory Software Offering

We ship inventory + WMS systems from ₹1.5L starter to ₹40L enterprise. Standard tiers based on 12+ deployments since 2021:

Starter — ₹1.5L-₹3L (6-10 weeks)

Single warehouse, web admin dashboard
GST-compliant invoicing + purchase entries
Barcode in/out with thermal printer integration
Stock master with HSN codes + reorder points
Basic stock, sales, GST reports
Tally Prime or Zoho Books sync

Best for: ₹2-10Cr SMB upgrading from Excel/manual

Growth — ₹4L-₹8L (10-14 weeks)

Multi-warehouse with bin/rack management
Android mobile app for pickers + barcode scanning
POS sync (web + Android)
E-invoicing via GSP + e-way bill
Sales/purchase order workflows
Returns + RTO handling
Dashboard analytics
Tally/Zoho Books/QuickBooks sync

Best for: ₹10-30Cr retail, wholesale, D2C

Full — ₹10L-₹20L (16-24 weeks)

All Growth features
Omnichannel marketplace sync (Amazon, Flipkart, Myntra, Nykaa, Shopify)
Courier integration (Shiprocket, Delhivery, Bluedart, Ekart)
Advanced WMS (putaway optimization, wave picking, cycle counting)
Role-based access (admin, manager, picker, accounts)
Customer + supplier portals
WhatsApp notifications via WATI
BI dashboards (Metabase or Power BI)

Best for: ₹30-100Cr D2C or distribution

Enterprise — ₹22L-₹40L (26-40 weeks)

All Full features
Multi-entity (multiple GSTs, inter-company transfers)
AI demand forecasting + auto-replenishment
Multi-level BOM + WIP tracking (manufacturing)
Batch + expiry + FEFO traceability (pharma, food)
ERP integration (SAP, Oracle, Dynamics)
Custom hardware (RFID, Cubiscan, conveyor systems)
Dedicated support SLAs

Best for: ₹100Cr+ manufacturers, multi-region distributors

Common Add-Ons

Manufacturing BOM module: +₹3L-₹6L
Batch + expiry traceability: +₹2L-₹4L
Jewelry weight/karat/hallmarking: +₹2L-₹4L
Auto-parts fitment + multi-attribute search: +₹1.5L-₹3L
iOS app (in addition to Android): +₹2L-₹4L
AI demand forecasting: +₹3L-₹6L
Shopify Plus integration: +₹1L-₹2L

All tiers include 3 months post-launch support, GST compliance handover, staff training, and hosting setup on AWS Mumbai or Hetzner.

Get Inventory Software Built Right for Your Business

If your business is evaluating inventory software — whether to upgrade your Tally + Excel setup, switch from underperforming SaaS, or build custom — talk to me directly. I'll personally scope your needs in a 30-minute call and recommend SaaS or custom honestly, even if it means losing your project to Zoho or Unicommerce.

WhatsApp Ashish for free inventory audit

Or schedule a 30-minute call

About the Author

Ashish Sharma is the founder of Codingclave, a Top Rated Upwork agency that has shipped 12+ custom inventory + WMS deployments since 2021 — D2C brands, manufacturers, pharma distributors, jewelry retailers, and multi-city auto-parts chains. He works directly with founders + operations heads to scope honest custom-vs-SaaS decisions. Reach him on LinkedIn, Upwork, or WhatsApp at +91 92771 84741.

Related reading:

Frequently asked questions

Real pricing depends on whether you go SaaS or custom-built. SaaS pricing: Zoho Inventory ₹2,299-₹5,499/month, TallyPrime ₹18,000-₹54,000/year one-time, Vyapar ₹3,399/year mobile, Marg ERP ₹8,400-₹25,000/year, Unicommerce ₹50,000-₹3L/year for omnichannel D2C. Custom build pricing: lean MVP ₹1.5L-₹4L (single warehouse, basic GST + barcode), mid-tier ₹6L-₹15L (multi-warehouse, POS sync, accounting integration, mobile app), enterprise ₹18L-₹40L (AI demand forecasting, ERP integration, multi-entity, advanced WMS workflows). For 95% of Indian SMBs under ₹50Cr turnover, SaaS wins on cost. Custom wins when you have unique workflows (manufacturing BOM, batch traceability for pharma, jewelry weight/karat tracking) or above ₹100Cr turnover where per-user SaaS fees compound expensively.

Cheapest legitimate options ranked by total cost: (1) Vyapar mobile-only ₹3,399/year — single user, basic GST invoicing + barcode + stock — works for kirana, small retail under ₹2Cr turnover. (2) Zoho Inventory Free plan — up to 50 orders/month, GST-compliant, decent for very small online sellers. (3) TallyPrime Silver ₹22,500 one-time (single user) — desktop, comprehensive accounting + inventory + GST, the most-deployed accounting software in India. (4) Refrens free billing + inventory — web-based, GST-compliant, free for small businesses. (5) Marg ERP entry tier ₹8,400/year — strong for pharmacy + FMCG distribution. Avoid free pirated copies of Tally/Busy — GST audit issues + no support. For under ₹5Cr turnover with 1-3 users, ₹3,399-₹25,000/year covers you. Custom build never makes sense below ₹10Cr turnover unless workflows are truly unique.

Stick with SaaS if: (1) Turnover under ₹50Cr; (2) Standard wholesale/retail/D2C workflows; (3) Under 100 SKUs or under 5,000 SKUs with standard categorization; (4) Single or 2-3 warehouses with simple bin layout; (5) Comfortable with platform UI + workflow; (6) Want launch in 1-4 weeks. Build custom if: (1) Manufacturing with multi-level BOM, work-in-progress tracking, by-products + scrap; (2) Pharma/food/cosmetics with batch + expiry + FEFO traceability and regulatory audit trails; (3) Jewelry with weight + karat + making-charges + hallmarking workflows; (4) Auto parts with multi-attribute fitment (make/model/year compatibility); (5) Above 50,000 SKUs with complex variant trees; (6) Multi-entity (separate GST registrations, inter-company stock transfers); (7) Above ₹100Cr turnover where ₹15L+ Unicommerce-tier SaaS fees beat amortized custom build; (8) Need integration with proprietary WMS hardware (Zebra, Honeywell scanners, Cubiscan dimensioners) that SaaS doesn't support.

Component breakdown for a mid-tier ₹10L custom inventory build: (1) Discovery + UX design 2-3 weeks ₹80K-₹1.2L; (2) Backend API + database schema 4-6 weeks ₹2L-₹2.8L (Node.js or Django with PostgreSQL); (3) Web admin dashboard 5-7 weeks ₹2.2L-₹3L (Next.js or React); (4) Mobile app for warehouse pickers (Android-first) 4-6 weeks ₹1.8L-₹2.5L (React Native or Flutter); (5) GST + e-invoicing integration ₹40K-₹80K; (6) Tally/Zoho Books accounting sync ₹50K-₹1L; (7) Barcode/QR scanning + label printing ₹30K-₹60K; (8) Multi-warehouse + bin management ₹60K-₹1.2L; (9) Reports + analytics module ₹40K-₹80K; (10) Hosting setup (AWS/Hetzner) + 3 months support ₹50K-₹1L. Hidden costs most buyers miss: data migration from legacy Tally/Excel (₹40K-₹1.5L), staff training across multiple warehouses (₹30K-₹80K), barcode printer + scanner hardware (₹15K-₹2L depending on count), ongoing maintenance (15-20% of build cost per year).

For a ₹30Cr D2C brand with 2,000 SKUs, 2 warehouses, Shopify + Amazon + Flipkart + Myntra channels — real 5-year TCO. Path A (Unicommerce omnichannel SaaS): Year 1 ₹2.5L setup + ₹1.5L/year subscription = ₹4L; Year 2-5 ₹1.8L/year × 4 = ₹7.2L; integration add-ons ₹3L over 5 years. 5-year TCO: ₹14L. Path B (Custom build): Year 1 ₹12L build + ₹1.2L hosting/maintenance; Year 2-5 ₹2.5L/year average maintenance + features. 5-year TCO: ₹23L. Unicommerce wins by ₹9L for this scale, plus you get pre-built marketplace integrations + GST reconciliation + courier integration. Above ₹100Cr turnover the math flips: SaaS scales linearly with order volume + SKUs while custom scales sublinearly. Most ₹30-100Cr D2C brands we audit are better on SaaS. Above ₹100Cr, custom or hybrid (custom WMS + SaaS for accounting) usually wins.

Yes — as of 2026 GST e-invoicing is mandatory for all businesses with turnover above ₹5Cr (threshold lowered from ₹10Cr in 2023, ₹5Cr in 2024). E-way bill is mandatory for inter-state goods movement above ₹50,000 value. Custom inventory software must integrate: (1) IRP (Invoice Registration Portal) API for IRN generation on every B2B invoice; (2) E-way bill API for transport documentation; (3) GSTR-1 + GSTR-3B auto-reconciliation; (4) HSN/SAC code management with auto-tax calculation; (5) Reverse charge mechanism handling; (6) E-invoice cancellation within 24 hours; (7) QR code generation on invoice PDFs. Integration cost: ₹40K-₹1L one-time for direct IRP API integration or ₹15K-₹40K/year via GSP (GST Suvidha Provider) like ClearTax, Masters India, Cygnet, Taxilla. We typically recommend GSP route for SMBs (faster, less compliance risk) and direct API for above ₹100Cr (better cost economics + control).

Realistic timelines from 12+ inventory + WMS projects we've shipped since 2021. Lean MVP (single warehouse, basic GST + barcode + stock + reports, web-only): 6-10 weeks. Mid-tier (multi-warehouse, mobile picker app, POS sync, accounting integration, dashboards): 12-18 weeks. Full-featured (above + omnichannel marketplace sync + courier API + e-invoicing + advanced analytics): 18-26 weeks. Enterprise WMS (above + putaway optimization, wave picking, cycle counting, AI demand forecasting, ERP sync): 26-40 weeks. Implementation rollout adds 4-12 weeks (data migration from Tally/Excel, barcode label rollout across all SKUs, staff training, parallel run). Most teams we work with phase the rollout: Phase 1 single warehouse + web dashboard (6-10 weeks), Phase 2 mobile picker app + barcode hardware (4-6 weeks more), Phase 3 marketplace + accounting integrations (4-8 weeks more). Trying to ship full system in one go usually doubles cost + delays go-live.

Hidden costs that blow up budgets, in order of frequency we see them: (1) Barcode hardware ₹15K-₹3L — printers (Zebra ZD230 ₹14K, TSC TTP-244 ₹9K), scanners (Honeywell Voyager ₹4K, Zebra DS2208 ₹6K), mobile computers for pickers (Zebra TC22 ₹35K, Honeywell EDA52 ₹40K). (2) Data migration ₹40K-₹2L — cleaning up 5 years of Tally/Excel mess, deduplicating SKUs, fixing HSN codes. (3) Staff training ₹30K-₹1.5L — multi-day on-site sessions, multi-language manuals, ongoing helpdesk first 3 months. (4) Integration add-ons SaaS doesn't include — marketplace connectors (₹3K-₹15K/year extra per channel on some platforms), shipping API (₹2K-₹10K/month), payment gateway (2-3% transaction fees compound). (5) Customization fees on SaaS — ₹15K-₹50K per custom report or workflow tweak on Zoho/Marg/Unicommerce. (6) Annual maintenance on custom build — 15-20% of build cost per year for security patches, GST rule changes, OS updates. (7) Scaling fees — when you cross user/SKU/order thresholds on SaaS plans, jumps are sharp.

Manufacturing has the strongest case for custom inventory software in India because off-the-shelf tools handle BOM (Bill of Materials), WIP (work-in-progress), by-products, scrap, and multi-stage routing poorly. Decision framework: (1) Single-level BOM, batch production, simple costing — TallyPrime + manual Excel for production planning works under ₹15Cr turnover. (2) Multi-level BOM + WIP tracking + multiple production stages — ERPNext (free open-source, ₹3L-₹8L one-time customization + ₹1L/year hosting) or Marg ERP Manufacturing ₹35K-₹1L/year. (3) Complex job work + sub-contracting + GST job work registers — custom build typically wins above ₹50Cr (₹8L-₹20L build vs SAP Business One ₹15-40L/year). (4) Process manufacturing (chemicals, pharma, food) with batch + expiry + recipe scaling + regulatory audit — custom build or specialized SaaS like Marg Pharma ₹35K-₹1.5L/year. We've built 5 custom manufacturing inventory systems for ₹8L-₹22L each, covering steel fabrication, textile, agro-processing, and pharma — all paid back in 14-22 months.

Our standard inventory software tiers based on 12+ deployments since 2021: (1) Starter ₹1.5L-₹3L (6-10 weeks) — single warehouse, web dashboard, GST invoicing, barcode in/out, basic stock + sales reports, Tally/Zoho Books sync. Best for ₹2-10Cr SMB upgrading from Excel/manual. (2) Growth ₹4L-₹8L (10-14 weeks) — multi-warehouse, mobile picker app, POS sync, e-invoicing + e-way bill, accounting integration, dashboards + analytics. Best for ₹10-30Cr retail/wholesale/D2C. (3) Full ₹10L-₹20L (16-24 weeks) — above + omnichannel marketplace sync (Amazon/Flipkart/Myntra/Shopify), courier API integration, advanced WMS workflows (putaway, wave picking, cycle counting), role-based access. Best for ₹30-100Cr D2C or distribution. (4) Enterprise ₹22L-₹40L (26-40 weeks) — above + multi-entity, ERP-grade workflows, AI demand forecasting, BI integration, custom hardware integrations, dedicated support SLAs. Best for ₹100Cr+ manufacturing or multi-region operations. Add-ons: ABDM/healthcare ₹2-6L, manufacturing BOM module ₹3-6L, batch + expiry traceability ₹2-4L. All tiers include 3-month post-launch support.