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GST invoicing · service businesses · Repair shops

Invoicing Software for Mobile, Electronics & Appliance Repair Shops

Parts-plus-labour job cards, warranty records and GST — no paper job register.

For Repair shops businesses

A repair shop runs on job cards — a customer drops in a phone or appliance, you diagnose, quote a price, order parts, do the repair, and bill on delivery. The invoice has to split the spare parts (goods with HSN-specific GST) from the labour (a service with SAC-coded GST), and the job record needs to stay on file for the warranty period.

Flat ₹399/month · Unlimited users · No card required · Cancel anytime

How repair shops billing works

Repair billing is job-card-based: each device gets its own job number, a service estimate on arrival, and a final invoice that separates taxable spare parts from the labour charge. In 399Apps you raise the bill from the job record, so parts cost and labour margin are both visible per job. For corporate AMC clients or mobile service aggregators, client-wise outstanding and AR aging keep collections from slipping past 30 days.

GST & TDS, handled right

Repair services fall under SAC 9987 (maintenance and repair of goods) at 18% GST on the labour component. Spare parts used in the repair carry their own HSN — electronic components and circuit boards at 18% (HSN 8473 / 8534), accessories at 12% or 18% depending on the item. When both appear on the same job invoice, 399Apps keeps each line at its correct rate so your GSTR-1 is clean and clients receive a valid composite repair receipt.

The billing problems it solves

Different service, same trap — money earned that never quite gets billed or collected. Here's what 399Apps keeps straight for mobile, electronics & appliance repair shops:

Paper job register

Each repair job becomes a digital job card — device details, fault description, parts list and labour quote in one place.

Parts vs labour tax split

Spare parts and labour carry different GST rates; each line item sits at its own rate on one invoice.

Warranty traceability

The job date and repair description stay on the invoice so a warranty claim is resolved in seconds, not a search through a notebook.

Corporate AMC slippage

Companies on annual maintenance contracts pay quarterly or monthly — AR aging surfaces overdue accounts before they go silent.

What you get

  • Job-card billing (device, fault, parts + labour)
  • Spare parts (HSN) + labour (SAC 9987) on one invoice
  • Job-wise margin — parts cost vs labour charge
  • Client-wise outstanding for AMC and corporate accounts
  • Credit notes for warranty re-dos and parts returns
  • GST-correct invoices, GSTR-1/3B-ready

One flat price — the whole team invoices

Most invoicing tools charge per user or per invoice, so growing your practice grows the bill. 399Apps is a flat ₹399/month per app for each additional app — GST invoicing, TDS reconciliation and receivables in one system, unlimited users, cloud or self-hosted. Adding partners, associates or account managers never raises the price.

FAQ

Invoicing software for mobile, electronics & appliance repair shops — FAQ

Does 399Apps work for mobile, electronics & appliance repair shops? +
Yes. 399Apps (Nidhi Books) is built for the way mobile, electronics & appliance repair shops actually invoice. Repair billing is job-card-based: each device gets its own job number, a service estimate on arrival, and a final invoice that separates taxable spare parts from the labour charge. In 399Apps you raise the bill from the job record, so parts cost and labour margin are both visible per job. For corporate AMC clients or mobile service aggregators, client-wise outstanding and AR aging keep collections from slipping past 30 days.
How does GST and TDS work for repair shops businesses in 399Apps? +
Repair services fall under SAC 9987 (maintenance and repair of goods) at 18% GST on the labour component. Spare parts used in the repair carry their own HSN — electronic components and circuit boards at 18% (HSN 8473 / 8534), accessories at 12% or 18% depending on the item. When both appear on the same job invoice, 399Apps keeps each line at its correct rate so your GSTR-1 is clean and clients receive a valid composite repair receipt.
How much does invoicing software cost for a repair shops business? +
A flat a flat ₹399/month per app — the same price across India, with no per-user licence and no per-invoice fee. A solo professional and a growing repair shops firm pay the same base price.
Can I track who still owes me and follow up on time? +
Yes. Every invoice carries a due date, and AR Aging buckets receivables into current, 1–30, 31–60, 61–90 and 90+ days overdue with per-client outstanding — so you chase the slippers before the money is really late, without a manual ledger.
Can I run it on the cloud or on my own server? +
Both. Run 399Apps fully managed on the 399apps cloud with daily backups and an India data region, or self-host it on your own server for complete data ownership. The same invoicing and GST features work either way.
Try 399Apps

Affordable invoicing software for mobile, electronics & appliance repair shops — from ₹399/month

GST invoicing, TDS reconciliation and receivables in one system, with unlimited users. Start your free 14-day trial — no card required.