Shops and retail

GST invoice format for a mobile phone shop

A mobile shop invoice must identify each handset precisely, because the bill doubles as the warranty document. Mobile phones of heading 8517 and almost every accessory sold with them, from chargers to earphones and power banks, are taxed at 18%. Beyond the standard fields, show IMEI numbers, model and variant, colour, any exchange value of the old phone kept outside the taxable value, and the EMI or card scheme used, since warranty and finance claims both depend on these details.

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Sample mobile shop invoice

Description	HSN/SAC	Qty	Rate (₹)	Taxable (₹)	GST
Smartphone 8 GB RAM / 128 GB, IMEI 35xxxxxxxxxxxx1	8517	1 PCS	18,999.00	18,999.00	18%
USB-C fast charger 33 W	8504	1 PCS	999.00	999.00	18%
Bluetooth earbuds	8518	1 PCS	1,499.00	1,499.00	18%
Power bank 10000 mAh	8507	1 PCS	1,299.00	1,299.00	18%
microSD memory card 128 GB	8523	1 PCS	899.00	899.00	18%
Taxable value				₹23,695.00
GST (CGST + SGST, or IGST if inter-state)				₹4,265.10
Invoice total				₹27,960.10

Sample prices are illustrative. Check the GST rate for your exact item or service before billing.

Extra fields a mobile shop invoice needs

IMEI 1 and IMEI 2: Dual-SIM phones carry two IMEI numbers. Both on the bill make the invoice usable for brand warranty, insurance claims and police complaints for a lost or stolen handset, and they tie each unit to stock records.
Model, RAM and storage variant: The same model sells in several memory variants at different prices. Printing the exact variant prevents disputes about what was promised and matches the invoice to the distributor's purchase bill.
Exchange device details: When an old phone is traded in, record its make, model, IMEI and value given. Shown separately after the tax total, it explains the amount paid without wrongly lowering the taxable value of the new phone.
EMI or finance scheme: Consumer finance and card EMI offers are common. Noting the financier, tenure and any dealer-borne discount on the bill helps reconcile payouts from the finance company and shows which discounts reduced the price.
Accessory serial or batch: Power banks, chargers and earbuds also carry warranties. Serial or batch numbers on their lines help when the customer returns a faulty accessory and support replacement claims with the brand.
Warranty start date: Brands count warranty from the invoice date. A clear statement of the warranty period for the handset and accessories saves time at the service centre and avoids arguments about expiry.

Standard GST invoice fields

Rule 46 of the CGST Rules applies to every tax invoice, including this one:

Supplier name, address and GSTIN
Consecutive invoice number (max 16 characters, unique for the year)
Date of issue
Customer name, address and GSTIN (if registered)
Place of supply with state name
HSN/SAC code per item
Description, quantity and unit
Taxable value after discounts
GST rate and CGST + SGST or IGST amounts
Signature or digital signature

GST rules that matter for a mobile shop

Everything in the box is usually 18%

Notification 9/2025-Central Tax (Rate) lists all goods of heading 8517, which covers mobile phones, in the 18% schedule. Chargers and adapters (8504), earphones and speakers (8518), lithium power banks (8507) and memory cards (8523) are in the same schedule. The September 2025 rationalisation did not lower these rates, so a mobile shop's item master is simpler than most retail trades. The care point is the odd item that is not electronic, such as a plastic phone cover, which must still be classified on its own and not assumed to share the handset's heading.

Exchange value does not reduce taxable value

Rule 27 of the CGST Rules deals with supplies made partly for consideration other than money, and its own illustration uses a new phone sold with exchange of an old phone: the value of the new phone is its price without the exchange. So if a handset is priced at 24,000 rupees and the customer pays 20,000 rupees plus an old phone, GST is charged on 24,000 rupees. The invoice should show the full price, the tax on it, and then the exchange value as an adjustment against the amount payable.

No-cost EMI and dealer discounts

In a no-cost EMI scheme the interest is usually funded through a discount by the brand or retailer. A discount given by the shop at the time of sale and shown on the invoice reduces the taxable value under section 15(3). Interest or processing fees charged by a bank or finance company are the lender's supply, not yours, and do not belong on your tax invoice. Keep the finance company's delivery order with the invoice copy so the payout reconciles, and never print the bank's charges as if they were part of the handset price.

Selling to businesses and other dealers

Corporate buyers purchasing phones for staff will ask for a tax invoice with their GSTIN to claim input tax credit. Dealers who sell handsets to other retailers in other states must charge IGST and generate an e-way bill once the consignment crosses fifty thousand rupees. If your aggregate turnover exceeds five crore rupees, these B2B invoices must also be e-invoices with an IRN. Keep separate invoice series for B2C counter sales and B2B sales so that GSTR-1 tables stay clean and the B2B lines carry complete buyer details, including the state code that decides IGST or CGST plus SGST.

Common billing mistakes

Printing only one IMEI for a dual-SIM handset, which leaves the bill short for warranty, insurance and theft complaints later.
Charging GST only on the cash paid after deducting the old phone's exchange value, instead of on the full price of the new phone.
Including the bank's EMI processing fee or interest in the shop's taxable value and paying tax on a charge that belongs to the lender.
Issuing a B2C bill to a company buying phones for employees, so the buyer cannot claim credit and asks for a fresh invoice.

Mobile shop GST invoice: FAQ

What is the GST rate on mobile phones?

Mobile phones fall under heading 8517 and attract 18% GST. Chargers, earphones, power banks and memory cards sold with them are also at 18%. The rate applies to the value after any discount shown on the invoice, and it is split into 9% CGST and 9% SGST for a sale within the state.

Is IMEI mandatory on a mobile phone GST invoice?

GST law does not list IMEI as a mandatory invoice field. In practice every brand asks for the IMEI on the invoice to honour warranty, insurers ask for it to settle claims, and police ask for it when a phone is stolen. Treat both IMEI numbers as an essential field on every handset line.

How is GST calculated when the customer exchanges an old phone?

Calculate GST on the full price of the new phone, ignoring the exchange. Rule 27 of the CGST Rules values such a supply at the price the phone would sell for without the exchange. Show the old phone's value as a deduction from the amount payable below the tax total, with its make and IMEI recorded.

Can a mobile shop use the composition scheme?

A mobile shop that sells only within its state and is under the composition turnover limit can opt in and issue bills of supply. Since nearly all its goods are at 18%, the flat composition tax may look attractive, but corporate buyers and other dealers cannot claim credit from a composition dealer, so the scheme suits only purely retail shops.

Sources: CBIC — Notification 9/2025-Central Tax (Rate), goods rate schedules · CBIC — CGST Act and Rules (sections 15, 31, 34; Rules 27 and 46)

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