Import procedures with DIAN: documents and timelines for general cargo

For any Colombian company importing goods from abroad, the DIAN process is the step that turns cargo sitting in a warehouse into an asset available for production or sale. Without customs clearance, the goods remain held at the port depot accumulating storage costs, and the operation cannot be completed.

However, the Colombian customs process has a reputation for complexity that is often simply the result of unfamiliarity. A general cargo import with complete and correct documentation can obtain DIAN clearance within 24 to 48 business hours after payment of duties. Delays occur almost always due to documentary errors, discrepancies in the declared value, or inconsistencies in tariff classification — all of which are avoidable with the right preparation.

This guide explains step by step the import procedures with DIAN for general cargo: what documents are required, how the selectivity channel system works, how long each stage takes, and what makes an import move quickly or get stuck.

Who can carry out import procedures with DIAN?

In Colombia, customs import procedures may be carried out by:

• The importer itself: if the company has staff trained in foreign trade and is registered with DIAN, it can manage its own import declarations directly. This option is common among large companies with very high import volumes that justify maintaining an in-house foreign trade department.
• A Customs Brokerage Firm (SIA — Sociedad de Intermediación Aduanera): for imports valued above USD 1,000, Colombian law requires that the process be carried out by a SIA licensed by DIAN, unless the importer holds its own license. The customs agent acts on behalf of the importer and assumes joint liability for the correct declaration of the goods.

For the vast majority of Colombian companies, even those with significant import volumes, working with an external SIA is the most efficient option: it avoids the need to maintain specialized staff up to date on customs regulations, which change frequently, and transfers the technical responsibility to the licensed agent.

Regulatory framework: Decree 1165 of 2019

The import process in Colombia is primarily governed by Decree 1165 of 2019, which is the current Colombian Customs Code. This decree establishes import regimes, customs control procedures, the obligations of importers and customs agents, and penalties for non-compliance.

For ordinary general cargo imports — the most common among industrial and commercial companies — the applicable regime is the ordinary import regime, under which goods are definitively nationalized by paying customs duties (tariff and VAT) and are placed at the importer's free disposal.

Documents required for the import of general cargo with DIAN

The customs agent needs the following documents to prepare and submit the import declaration:

Core documents (mandatory in every import)

• Commercial invoice: issued by the foreign supplier to the Colombian importer. It must include: full name and address of the seller and buyer, detailed description of the goods (with technical specifications, not generic descriptions), quantity, unit price, total value, agreed Incoterm, transaction currency and payment terms. This is the central document in the customs process: DIAN uses it to verify the customs value and the description of the goods.
• Packing list: details how the goods are packed: number of packages or boxes, contents of each, gross and net weight per package, dimensions and identification marks. For DIAN, the packing list is the physical map of the cargo that allows what is declared in the invoice to be verified against what physically arrives at the port.
• Transport document: this is the Bill of Lading (BL) for ocean transport, the Air Waybill (AWB) for air transport, or the consignment note for road transport. This document certifies that the goods were actually shipped and identifies the importer as the authorized consignee to receive them in Colombia.
• Cargo insurance policy: certifies that the goods are insured during international transport. DIAN requires it to verify the value of the insurance, which forms part of the taxable base for calculating import VAT.

Additional documents depending on the type of goods or origin

• Certificate of origin: required when the importer wishes to access the tariff preferences of a Free Trade Agreement. Without this document, DIAN applies the general tariff even if the goods come from a country with an FTA in force with Colombia. For goods from the U.S., EU, Korea or other FTA partners, this document can mean the difference between paying 0% or 10%–20% in tariffs.
• Import Registration (RI — Registro de Importación): certain products require the importer to obtain an Import Registration in advance from the Ministry of Commerce, Industry and Tourism through the VUCE (Single Foreign Trade Window). This registration does not apply to all general cargo, but does apply to specific products such as textiles, footwear, toys and others subject to import volume controls. The customs agent verifies whether your product requires it.
• Approvals from regulatory bodies: some products require authorization from entities other than DIAN before they can be imported. The most common for general cargo are ICA (Colombian Agricultural Institute) for products of plant or animal origin, INVIMA for medicines, cosmetics and food products, the Ministry of Defense for communications or security equipment, and ANLA for substances with potential environmental impact. For general cargo in sectors such as manufacturing, metalworking and construction, external approvals are infrequent, but must be verified before shipment.
• Inspection or analysis certificate (when applicable): for some industrial inputs with critical technical specifications, the buyer may require an inspection certificate issued by an independent inspection firm at origin (SGS, Bureau Veritas, Intertek) certifying that the goods meet the agreed specifications. Although this is not a general DIAN requirement, it may be relevant in a red channel if it is necessary to demonstrate the nature of the goods.

The import process step by step with DIAN

Step 1 — Vessel arrival and generation of the cargo manifest

When the vessel arrives at the Colombian port, the shipping line electronically transmits the cargo manifest to DIAN through the MUISCA system. This manifest is the official declaration of all cargo on board the vessel. From this point, the customs process can formally begin.

The customs agent verifies that the importer's BL appears correctly in the manifest with the same cargo data. A discrepancy between the BL and the manifest — for example, a different container number or a weight that does not match — is grounds for a formal inquiry and can cause delays.

Step 2 — Submission of the Import Declaration (DIM)

With the cargo documents in hand, the customs agent prepares and electronically submits the Import Declaration (DIM — Declaración de Importación) through DIAN's MUISCA system. This declaration contains:

• Importer details (tax ID, company name, address)
• Supplier details and country of origin
• Tariff subheading of the goods (10-digit code)
• Technical description of the goods
• Customs value (CIF in Colombian pesos at the official exchange rate of the day)
• Duty calculation: tariff and VAT
• Import regime (ordinary, temporary, etc.)
• References to all supporting documents

The DIM may be submitted at two different points: before the vessel arrives at port (advance declaration, which allows the process to be expedited) or after arrival, within a period of one month from the date the goods arrive in the customs territory.

Step 3 — Payment of customs duties

Once the DIM is submitted, the importer must pay the assessed duties (tariff and VAT) before DIAN can assign the selectivity channel and authorize clearance. Payment is made through DIAN-authorized banks or via electronic payment systems integrated with MUISCA.

The value of duties is calculated in Colombian pesos using the official Market Representative Rate (TRM) on the day the declaration is submitted. Fluctuations in the Colombian peso against the dollar can affect the final peso cost of duties, particularly in operations with long lead times between the quote and the declaration.

Step 4 — Assignment of the selectivity channel

After payment of duties, the MUISCA system automatically assigns a selectivity channel to the import declaration. This channel determines the level of inspection that DIAN applies to the goods before authorizing clearance:

The channel is assigned automatically by the system and depends on factors such as the importer's compliance history, the type of goods, the country of origin, the declared value and risk profiles that DIAN continuously updates. It is not possible to know in advance with certainty which channel will be assigned, but an importer with a good compliance record, standard goods and flawless documentation has a high probability of receiving the green channel.

Step 5 — Clearance and collection of goods

Clearance is the formal DIAN authorization for the importer to collect the goods from the customs depot. With clearance granted, the depot can release the containers or packages to the carrier designated by the importer or its logistics operator for overland transport to the final destination.

The total time from submission of the DIM to clearance varies depending on the channel assigned:

Total timelines for a general cargo import in Colombia

To get a complete picture of how long an import takes from origin shipment to arrival at the importer's facility, it is useful to break down each stage:

Common causes of delay in the DIAN process

Most delays in the Colombian customs process are avoidable. These are the most frequent causes:

1. Insufficient or incorrect goods description on the invoice

DIAN requires that the description of the goods in the import declaration clearly identify the item and verify that the declared tariff subheading is correct. Generic descriptions such as "parts and accessories," "various equipment" or "general merchandise" automatically trigger a red channel or a documentary inquiry. The supplier's invoice must include specific technical details: brand, model, capacity, power rating, material, intended use.

2. Discrepancy between the invoice value and DIAN's reference prices

DIAN has access to international reference price databases for thousands of products. When the value declared on the invoice is significantly lower than the agency's reference price for the same type of product and origin, the system may trigger a value control that results in a yellow or red channel for verification. Underinvoicing — declaring a lower value than the actual one to pay less in duties — is a serious offence. But even when the actual price is genuinely low for legitimate reasons (discounts, inventory clearance, a long-standing supplier relationship), the importer must be prepared to justify it with additional documentation.

3. Incorrect or debatable tariff classification

If the customs agent declares a tariff subheading with a lower rate than what DIAN considers correct for the product — whether due to error or a different interpretation of the tariff nomenclature — the inspector may challenge the classification during the documentary or physical inspection and initiate a duty reassessment process. Correct tariff classification is one of the most critical technical responsibilities of the customs agent.

4. Missing or erroneous supporting documents

A BL with a different container number than the actual one, a packing list whose weights do not match those on the invoice, a certificate of origin incorrectly filled out or containing information that does not correspond to the invoice, or the absence of a required regulatory approval are frequent causes of formal inquiries that halt the process until corrections or clarifications are provided.

5. Goods subject to restrictions not verified before shipment

If goods require an approval from ICA, INVIMA or another regulatory body and the importer did not obtain it before shipment, the goods cannot be cleared until that authorization is presented. Obtaining the approval after arrival can take weeks and generates storage costs that accumulate daily.

Ordinary import regime vs. special regimes

The ordinary import regime — the most common for general cargo — involves the definitive nationalization of goods with full payment of duties. However, there are special regimes that may be more advantageous in certain situations:

The importer's post-clearance obligations

Obtaining clearance is not the end of the importer's obligations with DIAN. After nationalization of the goods, the Colombian importer has the following long-term obligations:

• Document retention: the importer must retain all supporting documents for the import (invoice, BL, packing list, import declaration, certificates) for a minimum of five years from the date of the declaration. DIAN may conduct post-clearance audits during that period and require the presentation of documents from any operation carried out within that timeframe.
• Accuracy of declared information: if DIAN finds during a post-clearance audit that the declared information was incorrect — whether in value, description or tariff classification — it may initiate a duty reassessment process plus late interest and penalties, regardless of whether clearance has already been granted.
• Use of goods as declared under the applicable regime: if goods were imported under a special regime (temporary, Plan Vallejo), the importer must comply with the conditions of that regime: re-export within the deadline, demonstrate use for the declared purpose, etc. Non-compliance triggers the obligation to pay the duties plus penalties.

Tips for expediting the DIAN process

• Prepare and review documents before shipment: request draft invoices, packing lists and BLs from the supplier as soon as the goods are ready to ship, and share them with the customs agent for review. Errors detected before departure are corrected in hours. Those detected in Colombia can take days to resolve.
• Use the advance declaration: in Colombia it is possible to submit the import declaration and pay duties before the vessel arrives at port, using the advance BL issued by the shipping line. This allows the selectivity channel to be assigned and, in the case of a green channel, clearance to be ready on the day the depot registers the arrival of the cargo.
• Maintain a record of previous operations: importers with a good compliance history — correct declarations, no fines or penalties, timely payment of duties — have a higher probability of being assigned to the green channel by DIAN's risk profiling system.
• Verify regulatory approvals before purchasing: before confirming the order with the foreign supplier, check with the customs agent whether the product requires any approval from Colombian regulatory bodies. Processing the approval while the goods are in transit allows it to be ready upon arrival.
• Work with a customs agent specialized in your sector: an agent experienced with the type of goods you import will know the typical tariff subheadings for the sector, the documents that DIAN most frequently requests, and the risk profiles that may trigger a red channel, enabling them to prepare documentation proactively.

Case study: manufacturing company reduces clearance time from 6 days to 1.5 days on average

A plastic packaging manufacturer in Bogotá imported polyethylene and polypropylene resins monthly from the U.S. and China. It managed its customs process through a SIA agent who submitted the import declaration on the same day the vessel arrived at port, using documents received only when the shipping line emailed them.

The average time from vessel arrival to clearance was 6 business days, mainly for two reasons: the description of the resins on the Chinese supplier's invoice did not specify the polymer grade or density (which systematically triggered the yellow channel), and the declaration was submitted late because the agent waited to receive all original documents before starting the process.

After engaging Nextstop Group and implementing an advance document review protocol, the results were:

• The Chinese supplier was instructed to include the polymer grade, density, melt flow index and intended use on the invoice, eliminating the ambiguity that was triggering the yellow channel. The next eight consecutive shipments from China received the green channel.
• The advance declaration was implemented for imports from the U.S., submitting the DIM with the shipping line's advance BL before the vessel arrived at port. Clearance was authorized on the same day of arrival under the green channel.
• Average clearance time reduced from 6 business days to 1.5 business days, eliminating approximately COP 8.5 million per year in storage costs from additional days held at the port depot.

Frequently asked questions about import procedures with DIAN

What is MUISCA and how does it work for imports?

MUISCA (Modelo Único de Ingresos, Servicio y Control Automatizado — Unified Revenue, Service and Automated Control Model) is DIAN's technology platform through which all tax and customs procedures in Colombia are managed, including the submission of the Import Declaration. The customs agent accesses MUISCA with their own credentials, submits the DIM electronically, receives the selectivity channel assignment and tracks the clearance process. The importer can also access MUISCA with their own user account to check the status of their declarations.

Can I import without a customs agent if the value is low?

Decree 1165 of 2019 establishes that imports valued above USD 1,000 mandatorily require the intermediation of a SIA licensed by DIAN. For imports valued below USD 1,000, the importer may manage the declaration directly, although in practice most commercial imports exceed that threshold. For very low-value courier shipments, the simplified postal traffic regime applies, which has its own submission rules.

What happens if DIAN assigns a red channel to my import?

The red channel is not a penalty: it is a control measure that is either random or based on risk profiles. The customs agent coordinates with the DIAN inspector for the physical visit to the depot. During the inspection, the inspector verifies that the goods correspond to what was declared in terms of quantity, description and characteristics. If everything is correct, clearance is authorized after the inspection. If discrepancies are found, the inspector may initiate an investigation that can result in fines, duty reassessment, or in serious cases, seizure of the goods.

How long can goods remain at the port depot without incurring additional costs?

Colombian port depots offer a free storage period (free time) that varies by depot and container type, generally between 5 and 10 calendar days from the vessel's arrival. After that period, daily storage fees are charged, which can range between COP 80,000 and COP 350,000 per day depending on the type and size of the container and the specific depot. For imports with delays in the customs process, these costs accumulate quickly and can represent several additional millions of pesos above the projected cost of the operation.

Can an import declaration be corrected after submission?

Yes, Colombian customs regulations allow the correction of the import declaration under certain circumstances and within specific deadlines. Before clearance, the agent can request the correction of errors without major difficulty. After clearance, corrections are possible but follow a more formal process and may generate interest or penalties if the correction involves paying more duties than originally assessed. DIAN distinguishes between voluntary corrections (initiated by the importer) and corrections resulting from an audit (which carry greater consequences). For this reason, it is always better to identify and correct errors before the final submission of the declaration.

Conclusion

The import process with DIAN does not have to be a source of uncertainty or delays for Colombian companies. With documentation correctly prepared at origin, a competent customs agent, advance verification of regulatory approvals and the use of tools such as the advance declaration, a general cargo import can obtain clearance within 24 business hours of duty payment, and the goods can be at the importer's facility the day after the vessel arrives.

The key is to prepare the operation in advance, not to react once the container is already sitting at the depot. Storage costs, waiting days and penalties for documentary errors are entirely avoidable expenses when working with a logistics operator that manages the process comprehensively from the origin shipment.

If your company wants to review its current import process or needs guidance on DIAN customs procedures for its next operation, contact us and our team will support you every step of the way.