> ## Documentation Index > Fetch the complete documentation index at: https://docs.gasos.ng/llms.txt > Use this file to discover all available pages before exploring further. # Dealers on account > Sell gas on account to dealers and retailers, by the kg or by cylinder exchange, and bill them with Credit & fleet. Sell new cylinders and accessories through Mart POS. Dealers and retailers often take gas on account and pay later. In Gasos a dealer is a **credit customer**, like a fleet: the same credit limit, payment terms, invoices, statements, payments and reminders. Gas on account needs **Credit & fleet** on for the company and **Gas (LPG)** on at the station. ## Open the dealer's account Under **Credit customers**, an owner or admin adds the dealer with their limit, payment terms and the stations they can buy at (see [Credit customers](/credit/credit-customers)). Vehicles are optional: add the dealer's truck if they collect with one, or leave it out. ## Recording gas on account Gas on account goes in the hand-over of the attendant who served the dealer, like [fuel on account](/credit/fuel-on-account). 1. In the attendant's hand-over, under **On account**, choose **Add gas on account**. 2. Choose the **customer**, and the vehicle if there is one. 3. Choose how it was sold: * **By the kg, from a dispenser**: enter the **kg** at today's **gas price**. If the price changed during the day, choose the one in force at the time. * **Cylinder exchange**: choose the **size** and how many were **exchanged**. The price is the station's exchange price for the size that day. 4. Enter the **slip number**, the driver's name if you have it, and photograph the slip. Gasos works out the amount (kg × price per kg, or exchanges × the exchange price). It counts as handed over by the attendant, so it isn't a shortage, and it comes off the cash to bank. * Gas **by the kg** is already in the dispenser's meter, so it's in the day's gas sold like any other kg. * Cylinders **exchanged on account** are exchanges like any other: they're in the day's gas sold, in the attendant's expected cash (and handed over at once), and in the cylinder count at close. They show under **Cylinder exchanges** marked *on account*, and are changed or removed from the hand-over. A sale that takes a dealer over their limit, or a sale to a dealer on hold, is still recorded and needs a reason on the sheet. Removing a sale on account asks first. The summary you share by WhatsApp shows the day's total on account and how much of it was gas. ## Invoices, statements and VAT Gas lines go on the dealer's invoices and statements with the kg and the price per kg, or the cylinders as count × size (for example *3 × 12.5 kg*) and the price per exchange. A dealer who buys fuel too gets one invoice with both. **Gas carries no VAT.** LPG has been exempt from VAT in Nigeria since the Finance Act 2021, so gas lines are invoiced without VAT and the invoice says *Gas (LPG) is exempt from VAT*. Fuel lines keep your **VAT on fuel** setting. If the rule changes, an owner or admin can set **VAT on gas (LPG)** in **Credit settings**; it applies to invoices from then on. Balances, **Who owes** and reminders include gas the same way as fuel. The customer's page lists each fill-up in kg or cylinders. ## Cylinders and accessories New cylinders (sold empty), regulators, hoses and burners are sold through **Mart POS**, at the till, with its stock and receipts. Cylinder exchanges stay on the daily sheet. Where Mart POS is on, **Station setup → Gas (LPG)** has **Add gas accessories to the mart**: one click adds a **Gas** category with starter products (new 3, 6, 12.5, 25 and 50 kg cylinders, a regulator, a hose, hose clips and burners) at starter prices with 7.5% VAT. Change the prices and add stock under **Mart › Products**. Pressing it again adds only what's missing. Where Mart POS is off, turn it on under **Apps** first. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.