ITBMS in Panama: What Your Business Needs to Know When Invoicing

ITBMS is the tax most businesses in Panama apply every day when invoicing, and it’s still one of the most common sources of invoicing errors — not because it’s complicated, but because not every good or service is taxed the same way, and not every business is required to charge it. This article covers the essentials.

What ITBMS Is

The Transfer Tax on Movable Goods and Services (ITBMS) is the consumption tax applied to most sales of goods and provision of services in Panama, which the business charges the customer at the time of invoicing, then declares and pays to the tax authority (DGI).

Not Everything Is Taxed at the Same Rate

ITBMS doesn’t apply a single rate to everything: some goods and services are exempt, others are taxed at the general rate, and some — like certain beverages or lodging — carry specific differentiated rates. Applying the general rate to something that’s exempt, or the other way around, is one of the most common mistakes when a business starts invoicing without first verifying how each product it sells is classified.

Who Is Required to Charge It

Not every business is required to register as an ITBMS taxpayer — it depends on sales volume and type of activity. A business that’s just starting out and below the relevant threshold may not be required to charge it yet, but it’s worth confirming the current requirement rather than assuming a small business is always exempt.

How It’s Calculated on the Invoice

ITBMS is calculated on the sale price of the good or service, and is shown separately on the invoice — the customer sees the base price and ITBMS as a separate line, not already mixed into one number. An invoicing system that doesn’t clearly separate this unnecessarily complicates reconciling how much ITBMS was charged in the month, a number that has to be declared accurately.

Common Mistakes When Invoicing With ITBMS

The most common mistakes are applying the wrong rate by not verifying a product’s classification, forgetting to declare the ITBMS charged on time, and — in businesses selling mixed products, exempt and taxed on the same invoice — calculating it on the total instead of line by line as applies to each product.

How It Connects to Your Electronic Invoicing

ITBMS isn’t a calculation separate from your invoicing: if you issue electronic invoices, as we explain in Electronic Invoicing in Panama: What Your Business Needs to Know, the system has to calculate and declare ITBMS correctly for each invoice line, not as a manual adjustment after invoicing. You can see how Conta24 handles invoicing with ITBMS on our business page.