ICUMS Duty Breakdown Explained Step by Step

What is ICUMS?

ICUMSstands for Integrated Customs Management System. It's the digital platform used by Ghana Revenue Authority (GRA) Customs Division to process all import declarations. When you import a vehicle, your clearing agent files through ICUMS, and the system generates the duty assessment.

Step 1: Determine CIF Value

CIF = Cost + Insurance + Freight.ICUMS calculates this from the vehicle's MSRP (Manufacturer's Suggested Retail Price) minus depreciation based on age, plus shipping cost and marine insurance.

Step 2: Apply ECOWAS Import Duty Band

Ghana follows the ECOWAS Common External Tariff (CET). For vehicles, the duty band depends on engine capacity and vehicle type. Most personal vehicles with engines under 3,000cc attract a 5% import duty. Larger or luxury vehicles may attract up to 20%.

Step 3: Statutory Levies

After the import duty, several levies are applied on the CIF value:

Step 4: Overage Penalty (if applicable)

Vehicles older than 10 years attract an overage penaltycalculated on the CIF value. The penalty ranges from 5% to 100% depending on the vehicle's age bracket. Read our detailed overage guide →

Step 5: Total Duty

ICUMS sums all the components — import duty, VAT, NHIL, GETFund, all levies, and any overage penalty — into a single total duty figure. This is what you pay at the port before your vehicle is released.

Common mistakes

• Using purchase price instead of MSRP — customs uses the original retail price.
• Forgetting to account for exchange rate fluctuations between booking and clearing.
• Assuming no overage — even a car just over 10 years old triggers the 5% penalty.
• Not confirming the engine CC from the VIN — some models have multiple engine options.