Accounting & e-invoice guide for wholesale businesses in Malaysia
Lu Tong··4 min read
Say you run a small wholesale business supplying packaged food to minimarts and cafés. You buy in bulk from several suppliers, keep a few hundred SKUs in your warehouse, and deliver to regular customers every week. Some pay immediately. Your bigger accounts get 30-day credit. A typical order might go from Order → Delivery Order → Invoice → e-Invoice → Payment
On paper, that sounds straightforward. In reality, your team is also tracking stock, chasing unpaid invoices, recording supplier bills, handling returns and making sure the numbers in your accounts match what actually happened.
Now e-Invoice sits in the middle of that process too. Here’s how to keep it manageable.
What changes with e-Invoice?
An e-Invoice isn't simply a PDF invoice sent by email. Under Malaysia's e-Invoice system, transaction information is submitted electronically for validation by LHDN.
For a wholesaler, this matters because most of the information LHDN needs already exists somewhere in your sales process: your customer's details, products, quantities, prices, discounts and tax information.
The problem starts when that information lives in different places.
Your salesperson has the order
The warehouse has the delivery order.
Accounts creates the invoice.
Someone else handles e-Invoice.
That's four opportunities to enter something incorrectly.
Start with your customer records
Wholesale businesses usually sell repeatedly to the same customers. That makes maintaining good customer records particularly important. Instead of asking for information every time you issue an e-Invoice, keep the required details in the customer's account from the beginning.
For example, when ABC Minimart Sdn Bhd places its next order, your team should already have its relevant business and e-Invoice information on record.
Connect the order to the invoice
Suppose your customer order different SKUs and different quantity. Your warehouse prepares the goods and issues a delivery order. Once delivered, accounts prepares the invoice. If your team has to type those 35 cartons into another system to create the invoice and then enter them again for e-Invoice, you've created unnecessary work.
A cleaner workflow is: Sales Order → Delivery Order → Invoice → e-Invoice
The information moves forward with the transaction. You update what changed instead of recreating the transaction each time.
Don't forget what happens to your stock
For wholesalers, invoicing is only half the picture. Your accounting records should reflect the sale, while your inventory records should reflect the stock movement.
This becomes especially important when you're dealing with hundreds of SKUs. If sales and inventory are maintained separately, then someone has to figure out where the other unmatched numbers went. Keeping sales and inventory connected makes that reconciliation much easier.
Credit customers need another layer of tracking
Many wholesalers don't get paid when they deliver. Some might have 30-day payment terms. So issuing the invoice isn't the end of the transaction. When payment arrives, it needs to be matched against the right invoice.
This is where accounts receivable becomes especially important for wholesale businesses. You don't just need to know how much you sold this month. You need to know who still owes you money.
What if the customer returns some stock?
Returns happen. Perhaps customers returns five cartons because they received the wrong variant. Your records now need to reflect the change.
The stock comes back into inventory. The customer's balance may change. Your accounting records need an adjustment. And the related e-Invoice treatment needs to follow the applicable LHDN requirements.
This is why treating e-Invoice as a separate admin job can become messy. It's part of the same transaction.
A simpler way to think about wholesale accounting
You don't need separate processes for every document. Think of each sale as one transaction moving through your business: Customer orders → goods leave warehouse → invoice is issued → e-Invoice is handled → customer owes you → payment arrives
Your accounting system should help you follow that transaction from beginning to end. If your team is copying the same customer, product and price information between spreadsheets and systems, there's probably a simpler way to do it.
Where Duitbooks fits in
Duitbooks brings customer records, sales, inventory, receivables and e-Invoicing into the same accounting workflow. For a wholesaler, that means the information you use to run the business can also support your e-Invoice process—without building a second accounting process just for compliance. Not another system your team has to manage.