VAT Trends: CTCs and Their Impact on Business Today

Sovos
May 16, 2021

This blog is an excerpt from Sovos’ Annual VAT Trends report. Please click here to download your complimentary copy in full.

VAT requirements and their relative importance for businesses have changed significantly in recent years. For data that is transactional in nature, the overall VAT trend is clearly toward various forms of continuous transaction controls (CTCs).

The first steps toward this radically different mode of enforcement, known as the “clearance model”, began in Latin America in the early 2000s. Other emerging economies, such as Turkey, followed suit a decade later. And today, many countries in the Latin American region now have stable CTC systems where a significant amount of the data required for VAT enforcement is based on invoices. Other key data is harvested and pre-approved directly at the time of the transaction.

Common clearance system features

There are several high-level features and processes that many clearance systems have in common.

However, many variations exist on this reference model in practice; many countries with a clearance system have implemented extensions and variations on these “standard” processes:

1. OK TO ISSUE: Typically, the process starts with the supplier sending the invoice in a specified format to the tax authorities or a state agent licensed to act on its behalf. This invoice is ordinarily signed with a secret private key corresponding to a public certificate issued to the supplier.

2. OK/NOT OK: The tax authority or state agent (for example, an accredited or licensed operator) will typically verify the signed supplier invoice and clear it by registering it under a unique identification number in its internal platform. In some countries, a proof of clearance is returned, which can be as simple as a unique transaction ID, possibly with a timestamp. In some cases, it’s digitally signed by the tax authority/state agent. The proof of clearance may be detached from the invoice or added to it.

3. VALID: Upon receipt of the invoice, the buyer is often obligated or encouraged to check with the tax authority or its agent that the invoice received was issued in compliance with applicable requirements. In general, the buyer usually handles integrity and authenticity control using crypto tools, also used to verify a signed proof of clearance. In other cases, the tax authority or agent completes the clearance check online.

4. OK/NOT OK: If the buyer has used an online system to perform the validation described in the previous step, the tax authority or state agent will re-turn an OK/not OK response to the buyer.

The first “clearance” implementations were in countries like Chile, Mexico and Brazil between 2000 and 2010. They were inspired by this high-level process template. Countries that subsequently introduced similar systems, in Latin America and worldwide, take greater liberties with this basic process model.

Global expansion of CTCs

Europe and other countries passed through a stage allowing original VAT invoices to be electronic. This is without changing the basics of the VAT law enforcement model. This phase of voluntary e-invoicing without process re-engineering is “post audit” e-invoicing. The moment a tax administration audit comes into play is post-transaction. In a post audit system, the tax authority has no operational role in the invoicing process. It relies heavily on periodic reports transmitted by the taxpayer.

Largely due to the staggering improvements in revenue collection and economic transparency demonstrated by countries with existing CTC regimes, countries in Europe, Asia and Africa have also started moving away from post audit regulation to adopting CTC-inspired approaches.

Many EU Member States, for example, are moving toward CTCs not by imposing “clearance” e-invoicing but by making existing VAT reporting processes more granular and more frequent via CTC reporting. These countries will eventually adopt requirements for real-time or near-real-time invoice transmission. This is as well as electronic transmission of other transaction and accounting data to the tax authority. However, it’s not a foregone conclusion that they’ll all take these regimes to the extreme of invoice clearance.

CTC reporting from a purely technical perspective often looks like clearance e-invoicing, but these regimes are separate from invoicing rules. In addition, they don’t necessarily require the invoice as exchanged between the supplier and the buyer to be electronic.

The impact of CTCs on business

The VAT trend towards CTCs is obvious, but situations in individual countries and regions remain fluid. It’s important to align your company with local expertise that understands the nuances of your business and what regulations and rules you’re subject to.

Take Action

Start by downloading the full Trends Report here or contact us

Sign up for Email Updates

Stay up to date with the latest tax and compliance updates that may impact your business.

Author

Sovos

Sovos is a global provider of tax, compliance and trust solutions and services that enable businesses to navigate an increasingly regulated world with true confidence. Purpose-built for always-on compliance capabilities, our scalable IT-driven solutions meet the demands of an evolving and complex global regulatory landscape. Sovos’ cloud-based software platform provides an unparalleled level of integration with business applications and government compliance processes. More than 100,000 customers in 100+ countries – including half the Fortune 500 – trust Sovos for their compliance needs. Sovos annually processes more than three billion transactions across 19,000 global tax jurisdictions. Bolstered by a robust partner program more than 400 strong, Sovos brings to bear an unrivaled global network for companies across industries and geographies. Founded in 1979, Sovos has operations across the Americas and Europe, and is owned by Hg and TA Associates.
Share this post

Hungary - Insurance Premium Tax
EMEA IPT
July 8, 2024
Hungary Insurance Premium Tax (IPT): An Overview

Regarding calculating Insurance Premium Tax (IPT), Hungary is the only country in the EU where the regime uses the so-called sliding scale rate model.

Understanding-IPT-Prepayments-in-Hungary
EMEA IPT
September 20, 2022
Understanding IPT Prepayments in Hungary

Update: 17 April 2025 by Edit Buliczka New IPT Prepayment Rules in Hungary Starting in 2025, new prepayment rules will apply to the Extra Profit Tax on Insurance Premium Tax (EPTIPT). The current structure of two prepayments—due in May and November—will be replaced by a single prepayment, which must be made by 10 December 2025. […]

ViDA e-invoicing
North America VAT & Fiscal Reporting
July 18, 2025
ViDA E-Invoicing and Digital Reporting Requirements: What Businesses Need to Know

VAT in the Digital Age (ViDA) is one of the most significant regulation changes to EU VAT in recent years. Changes to requirements became effective on 12 March 2025 with the official adoption of the package, with further rules coming into effect in 2030. This blog discusses the changes impacting businesses, including Digital Reporting Requirements, […]

France's E-Invoicing Reform
E-Invoicing Compliance EMEA North America
July 15, 2025
France’s E-Invoicing Reform: We’re Ready to Support Businesses During the Pilot Phase

With the pilot phase of France’s e-invoicing reform fast approaching, we’re prepared to support businesses every step of the way. As a global provider of tax compliance solutions and a trusted technology partner, we’re ready to help companies navigate the upcoming transition with confidence. Preparing for a Milestone Year The French B2B e-invoicing reform is […]

London
EMEA VAT & Fiscal Reporting
June 12, 2025
VAT in the Digital Age: The Questions Everyone is Asking Answered

With the VAT in the Digital Age (ViDA) officially adopted by the EU on 11 March 2025, businesses have many questions about its rollout and impact on their operations. We answer the most frequently asked questions.    When will businesses begin to see an impact from ViDA? ViDA is leading to changes in several areas […]

E-Invoicing Compliance North America
May 29, 2025
Global E-archiving Compliance: The Essentials of E-invoice Storage

The digital business landscape is forever changing, yet one thing is certain: electronic archiving is more than a convenience – it’s a matter of compliance. As governments worldwide invest in digital tax transformation initiatives like e-invoicing and e-reporting, a complex web of e-archiving requirements that vary across borders is also developing. Understanding your e-archiving requirements […]

unclaimed property laws
North America Unclaimed Property
May 14, 2025
From Crypto to NFTs: The expanding scope of unclaimed property laws

Last month, a cross-functional group of Sovos unclaimed property experts—including folks from product development, product marketing, managed services, our general counsel’s office, and the consulting team—traveled to Tucson, Arizona to the Unclaimed Property Professional Organization’s annual conference. We spent the week diving deep into all things unclaimed property. There was one topic that kept coming […]