Business vs Personal PromptPay · which one online sellers should use

Most online sellers start out with a personal PromptPay linked to their mobile number · Once the shop grows, the same questions come up: should I switch to a business PromptPay, what's the difference, what has to happen first · This is written from the seller's point of view, not the bank's.

What is a business PromptPay

Personal PromptPay is linked to one of:

• Your personal mobile number
• Your national ID number (13 digits)

Business PromptPay (juristic person) is linked to:

• The company's tax ID (13 digits, but a different number from your national ID)

The most important difference isn't the number you register with. It's the destination account · A business PromptPay must be linked to a bank account opened in the company's name (Co., Ltd. or partnership), not the owner's personal account.

When to switch to a business PromptPay

Three signs it's time:

1. More than ฿1.8M per month lands in your personal account · Revenue Department rules say anyone earning over ฿1.8M/year must register for VAT · If large sales deposits hit a personal account every month, the tax office can and does check.

2. You want to issue tax invoices · Corporate customers usually ask for tax invoices · You need a registered company first · Once you have one, you have to switch to a business PromptPay anyway.

3. You want to separate shop money from personal money · Sellers whose shop cash and personal spending have grown into one pile find bookkeeping nearly impossible · Splitting the accounts early makes audits simple and tax planning possible.

What has to happen first

1. Register a company · Choose between a limited partnership (หจก.) or a limited company (บจก.) · Start-up cost ~฿5,000-10,000 · Takes 2-4 weeks.

2. Open a bank account in the company's name · Bring the registration documents to the bank and open a new account.

3. Link PromptPay to the tax ID · Do this from the bank app for the company account · Pick "Link PromptPay" → "Taxpayer ID" → enter the tax ID.

Pros and cons for the seller

Pros:

• Bookkeeping is far simpler. Shop money and personal money are cleanly separated
• You can issue tax invoices to corporate customers
• You look more credible to bigger clients
• Sets you up to borrow later (banks look at the company's financials)

Cons:

• Annual accounting and tax filing costs ~฿15,000-30,000/year at minimum
• You must prepare financial statements and file PND 50 every year
• Money in a company account isn't yours to withdraw personally (it has to come out via salary or dividends)

Which PromptPay does Nava work with

Nava supports both · Sellers who haven't registered a company can use their mobile number or national ID · Sellers who have registered can link with the company's tax ID · You can switch PromptPay later from settings.