The "Act on the Economic and Financial Relations with Companies Registered in Preferential Tax Regime Jurisdictions, the Persons Related to Them and Their Beneficial Owners" stipulates that companies registered in the jurisdictions listed in §1 No. 64 of the "Supplementary Provisions of the Corporate Income Tax" may not participate in public procurement procedures. This includes a closed list of countries and territories, as well as all jurisdictions with which Bulgaria has no effective double taxation treaties and where taxes are lower than 40% of the taxes in Bulgaria. The ban includes "related parties" – notably shareholders. This restriction is waived when the owners of the company in question are "Bulgarian citizens and known to the public" if the company is publicly traded or if the parent company is a media publisher and declared its owner.

Art. 85 of the Utilities Directive (2014/25/EU) contains provisions allowing contracting public entities to reject foreign goods not covered by any EU international commitments from its tender procedures. In these cases, a tender submitted for the award of a supply contract may be rejected where the proportion of the products originating in third countries exceeds 50% of the total value of the products constituting the tender (Art. 85.2). Additionally, in cases of equivalent offers, the provisions provide for a preference for European tenders and tenders covered by EU's international obligations. In practice, this possibility has rarely been used.
In 2019, the Directive has been transposed with the Implementing Rules of the Public Procurement Act, as well as by the Public Procurement Act.

It is reported that the lack of transparency is a challenge for public procurement procedures in Bulgaria, especially for foreign bidders, including with respect to overly narrow definitions of tenders and implicit biases in favour of local vendors and state-owned enterprises.

The Law on Protection of Consumers' Rights and the Law on E-Transactions provide a comprehensive consumer protection framework that also applies to online transactions. The Law regulates the rights and obligations of consumers, the liability of organisations or individuals trading goods and/or services to consumers, the liability of social organisations in protecting the interests of consumers, resolving disputes between consumers and sellers, the liability of the State on the protection of consumers’ interests. In addition, the Law on E-transactions provides the legal framework for electronic signatures and e-transactions.

Vietnam has not signed the United Nations (UN) Convention on the Use of Electronic Communications in International Contracts.

Vietnam has adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Commerce.

Vietnam has adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Signatures.

The Ministry of Industry and Trade (MOIT) issued Circular No.59/2015/TT-BCT to regulate the management of e-commerce activities via mobile applications. The circular strictly regulates the operation of e-commerce on mobile applications, which requires registration to MOIT. The circular applies to all Vietnamese individuals and organisations, foreigners who reside in Vietnam, and foreigners and organisations who have a presence in Vietnam through investment, setting up branches, or representative offices.

In 2015, the State Bank of Vietnam issued Circular 39/2014/TT-NHNN to regulate payments via intermediaries, and the Circular was then replaced by Circular 23/2019/TT-NHNN in 2019. E-payments made via intermediaries such as e-wallets are regulated under this Circular. According to the Circular, owners of e-wallets must link the wallet to a bank account created in Vietnam or via branches of foreign banks in Vietnam in order to make payments in Vietnam.

It is reported that the de minimis threshold, that is the minimum value of goods below which customs do not charge duties, is USD 43, below the 200 USD threshold recommended by the International Chamber of Commerce (ICC).

Chapter 2 of Decree No. 72/2013/ND-CP on ".vn" domain service regulates that foreign companies that provide ".vn" domain registration must either establish the business in Vietnam according to Vietnamese law or have a contract with ICANN-accredited registrars. In addition, foreign companies that provide ".vn" domain registration services must have a contract with the Vietnam Internet Network Information Center to provide ".vn" domain registration services.

In February 2020, the Vietnamese government issued Decree No. 15/2020/ND-CP to regulate administrative violations in several sectors including the telecommunications sector, IT and electronic transactions. Art. 44.1.(d) of the Decree regulates penalties for electronic newspapers, general websites or web portals, and social networks for not using the Vietnamese national domain name ".vn" and not storing information in the server system with an IP address in Vietnam. In addition, according to Art. 45.3.(d) of the Decree, these companies shall be fined if they do not use primary domain name servers (DNS) using the Vietnamese national domain name ".vn".

Since 2019, domestic and international providers of telecommunications services, internet services and value-added services in Vietnam’s cyberspace that collect, analyse or process private information or data about relationships of their service users or data created by their service users in Vietnam shall open branches or representative offices in Vietnam.