Colombia's tax ID for foreigners: the RUT and NIT

Sooner or later, most Americans who live or do business in Colombia are asked for a "RUT". It is the Registro Único Tributario, the national tax register run by the DIAN, Colombia's tax and customs authority. Registering gives you a NIT, the tax identification number used for taxes, customs and foreign exchange control. This guide explains who must register, how foreigners do it, what it costs and what you will use it for.

RUT and NIT: what each one is

The DIAN describes the RUT as the single mechanism to identify, locate and classify people and entities that have obligations administered by the DIAN. The NIT, the Número de Identificación Tributaria, is the unique number the DIAN uses to identify each person or entity on that register, for tax, customs and exchange control purposes. When you register in the RUT, you receive a NIT and a RUT document in PDF, which you will be asked to show to banks, clients and agencies.

For a natural person, the NIT is linked to your identity document. Once you hold a Cédula de Extranjería, the DIAN identifies you through it. Your US Social Security number plays no role in the Colombian system.

Who must register

The DIAN's list of people required to register in the RUT includes, among others:

• People who are taxpayers required to file Colombian income tax returns.
• People who carry out economic activities, such as independent professionals and merchants.
• Non-residents and foreign entities with a permanent establishment or branch in Colombia.
• Non-residents who must file for Colombian-source income received directly.
• Non-residents who provide services from abroad subject to Colombian VAT, in specified cases.

The DIAN also asks that registration happen before you start an economic activity. In practice, Colombian clients, employers and banks frequently ask for a RUT before they pay you, open some products or sign contracts. Investors registering foreign investment and people buying property also commonly need one.

If you live in Colombia on a pension and have no other activity, your obligation depends on whether you are required to file a tax return. That depends on your tax residence and your income and assets for the year.

The cost

The DIAN states that registration in the RUT costs nothing, and the form is free. The DIAN also warns that its procedures are free and should not be paid to intermediaries. If someone offers to "sell" you a RUT, decline.

How foreigners register

Colombian citizens can register online with their national ID. That route is not open to foreigners. The DIAN's guide to online registration says the virtual service is for natural persons with a Colombian citizenship card, and that foreigners cannot use it. A foreigner in Colombia registers in person at a DIAN office.

The DIAN offers several in-person routes:

1. Directly by the person, at a DIAN service point. The DIAN's appointment page lists RUT registration and updates for natural persons among the services that can be scheduled.
2. Through an attorney-in-fact (apoderado) with a duly granted power of attorney. The DIAN notes the representative does not need to be a lawyer.
3. Through a chamber of commerce, for people who also register as merchants in the commercial registry.

Bring your valid identity document: the Cédula de Extranjería if you have one, or your passport. Prepare the details you will declare: address in Colombia, phone, email, and your economic activity codes. The DIAN advises checking that address, email and phone numbers are correct, because false information has legal consequences.

Registering from outside Colombia

The DIAN provides a route for natural persons who are abroad. They can send the registration or update request through the "PQSR y Denuncias" service on the DIAN website, attaching a scanned identity document and the passport page showing the date they left Colombia. If migration policy means there is no such stamp, the person states the departure date in writing. The DIAN suggests also sending page 1 of the RUT form to speed things up. Once processed, the DIAN emails the RUT certificate to the address provided.

This route is useful if a Colombian company needs to pay you while you are in the United States, or if you sold property in Colombia and need to file.

After registration

The DIAN states the RUT has indefinite validity. You only update it when your information changes, such as a new address, a new activity or a new identity document after you receive your cédula. Being registered gives you access to the DIAN's online services, where you can download copies of the RUT, update data, request an electronic signature and file returns.

Keep the RUT current. Banks and clients may ask for a recent copy, and the activity codes on it affect your tax responsibilities, including whether you must issue electronic invoices.

Tax residence and filing deadlines

The RUT records you; it does not make you a resident. The DIAN considers a natural person a tax resident after more than 183 calendar days in Colombia, continuous or not, within any 365-day period. Residents report worldwide income and assets. Non-residents file only for Colombian-source income when the rules require it.

Filing deadlines are set by the last digits of the NIT. For tax year 2025, the DIAN's calendar set the individual income tax filing window from August 12 to October 26, 2026, by the last two digits of the NIT. Find your exact date on the DIAN calendar for the relevant year.

How the RUT fits with your US obligations

Having a Colombian NIT does not change your US position. US citizens file a US return on worldwide income each year, and the IRS gives taxpayers living abroad an automatic extension to June 15 to file. Colombian bank accounts count toward FBAR reporting: if the combined value of your foreign accounts exceeds $10,000 at any time in the year, you file FinCEN Form 114, due April 15 with an automatic extension to October 15. Colombia is not on the IRS list of income tax treaty countries.

Quick checklist

• Get your Cédula de Extranjería first if you will live in Colombia, so the RUT shows it.
• Book a DIAN appointment for RUT registration.
• Bring your ID, address details, email and activity description.
• Download the PDF and store it with your visa documents.
• Update the RUT whenever your address, activity or ID changes.

Common situations and what they need

• Remote worker paid only from the US. You may not need a RUT to live in Colombia, but you will need one once you are required to file a Colombian return as a tax resident.
• Freelancer with Colombian clients. Register before you start invoicing. Your activity codes and responsibilities on the RUT determine your invoicing duties.
• Employee of a Colombian company. Employers often ask for a RUT during onboarding. Bring it with your cédula and bank details.
• Property buyer or seller. Notaries, banks and the DIAN may ask for a RUT for the transaction and any resulting tax return.

Common questions

Can a foreigner register for a Colombian RUT online? No. The DIAN's online registration is for natural persons with a Colombian citizenship card. Foreigners register in person, through an attorney-in-fact, or from abroad through the PQSR service.

How much does a Colombian RUT cost? Nothing. The DIAN states RUT registration and its form are free and warns not to pay intermediaries.

Does the RUT expire? No. The DIAN says the RUT has indefinite validity and must be updated only when the registered information changes.