Case study

Tax E-Filing System: How Curaçao grew online tax returns by 200% in one year

How Blyce built an online tax filing portal for the Government of Curaçao that significantly outperformed regional e-filing adoption rates.

Client

Inspectorate of Taxes Curaçao

Product

Multi Tax Solution

Live since

May 2013

Focus

Cover 6 tax types

The context

The IMF reported in 2017 that e-filing rates in the Caribbean remained very low. In Jamaica, e-filing was 16% for VAT and CIT, 14% for PAYE, and 1% for personal income tax. In Barbados, e-filing remained below 30% for income tax. Curaçao’s results stand out against this regional baseline.

In 2012, the Government of Curaçao set out to modernize tax compliance.

The Inspectorate of Taxes was responsible for income tax, turnover tax, wage tax, social security contributions, real estate tax, and profit tax, but compliance was alarmingly low.

For turnover tax in some segments, voluntary compliance was as low as 40%. The paper-based filing process was cumbersome for taxpayers and inefficient for staff.

Low compliance

Turnover tax compliance dropped to 40% in some segments. Paper filing created friction at every step.

No real-time visibility

The tax inspectorate had no way to see workloads or filing statuses in real time. Backlogs were invisible until they became crises.

Manual data entry

Tax returns submitted on paper or via diskettes required extensive manual data entry, slowing the entire tax chain.

+200%

Growth in online tax returns by businesses between 2016 and 2017. From 54,253 to 162,482 returns filed digitally

15,000

Active portal users (9k business, 6k private)

+60%

Growth in business adoption (2016 to 2017)

180,000

Pages of paper forms eliminated annually

2,100

Businesses served via tax advisor portal

The technical differentiator

"Each tax type has been modeled into the system based on fiscal laws, policies, and business rules of the tax inspectorate. Integration with back-office systems and external agencies is in place."

Most online tax filing portals are built as front-end forms that submit data into a separate back-office system.

Curaçao’s portal works differently. Built on the Multi Tax Solution, the portal models each tax type directly from fiscal law and integrates fully with the tax inspectorate’s back-office systems and with external agencies like the Social Insurance Bank for sickness and accident insurance contributions.

The portal also became the first .cw website in Curaçao to obtain an Extended Validation SSL certificate, the highest available level of encryption and security for a government tax platform.

It is offered in both English and Papiamentu to maximize accessibility across the population.

Six tax types in one portal EV SSL certified (first .cw site) Direct back-office integration Bilingual (English and Papiamentu)

How adoption was driven:

A tax e-filing system only works if people use it. The IMF’s own analysis points to “insufficient publicity and faulty strategic direction” as the reason most Caribbean countries struggle with adoption.

Curaçao avoided that trap by treating adoption as a deliberate, multi-year program led by the Ministry of Finance and the tax inspectorate, with technical and communication support from Blyce throughout.

Phased rollout

Started May 2013 with wage tax and turnover tax. New tax types added every year. Each release includes user guides and staff training.

Tax advisor enablement

Authorization functionality launched in 2016. Now used by 53 administration offices serving 2,100 businesses, who filed 7,500 returns digitally in 2017.

Multi-channel communication

Instructional videos on YouTube, in inspectorate waiting areas, and on the tax inspectorate website. Bilingual support across all materials.

Operational impact

Beyond compliance gains, the e-filing system delivered measurable operational benefits across the tax chain. Turnaround times for processing returns decreased significantly. Queues at the tax inspectorate dropped because taxpayers no longer needed to visit in person to get returns stamped.

An estimated 180,000 pages of tax forms no longer need to be entered manually each year.

Electronic payments, matched via a new payment reference number, reconcile faster with tax arrears at the Receiver’s office, accelerating revenue recognition across the entire tax chain.

For the tax inspectorate, this means staff capacity has shifted from data entry to higher-value work like compliance enforcement and taxpayer support.

Looking to launch a tax e-filing system?

The Multi Tax Solution powers e-filing portals for governments looking to increase compliance, reduce manual processing, and improve service for citizens and businesses. If you are evaluating an online tax filing portal for your jurisdiction, we can show you what implementation looks like.

Talk to us

Frequently asked questions about tax e-filing systems

What is a tax e-filing system?

A tax e-filing system is a digital platform that allows taxpayers, both individuals and businesses, to submit their tax returns online instead of on paper. Modern e-filing systems handle multiple tax types in one portal, validate data at the point of entry, and integrate directly with the back-office systems of the tax administration. They typically include taxpayer accounts where users can review submitted returns, make corrections, and track their filing history. For tax administrations, e-filing reduces manual data entry, accelerates processing, and creates real-time visibility into compliance.

How does an online tax filing portal increase compliance?

An online tax filing portal increases compliance by removing friction from the filing process. When taxpayers can file from anywhere at any time, in their preferred language, without queuing or paperwork, voluntary compliance rises. Built-in validations catch errors before submission, reducing the back-and-forth that often discourages filing. In the case of Curaçao, business adoption of the online portal grew from 20.5% in 2016 to 32.3% in 2017, and the total number of online tax returns by businesses grew by almost 200% in the same period.

How long does it take to implement a tax e-filing system?

Implementation timelines depend on the number of tax types, the level of integration with existing back-office systems, and how the rollout is phased. The Curaçao e-filing portal launched in May 2013 with two tax types (wage tax and turnover tax), and new functionality was added each year. By 2017 it covered six tax types and served 15,000 active users. A phased approach reduces risk and gives the tax administration time to drive adoption alongside each release.

What is the Multi Tax Solution by Blyce?

The Multi Tax Solution (MTS) is an Integrated Tax Administration System developed by Blyce. It powers tax e-filing portals, automates routine tax processing, and consolidates tax administration functions into a single platform. MTS includes self-service portals for taxpayers and tax advisors, modular components that can operate independently or together, and full coverage of tax levying, collection, and reporting. It has been deployed across multiple jurisdictions in the Caribbean, including the Government of Curaçao, the Caribbean Netherlands and many more.

Is tax e-filing software suitable for small island governments?

Yes, and the Caribbean context makes a strong case for it. According to a 2017 IMF working paper, e-filing rates in the region remained low: 16% for VAT in Jamaica, below 30% for income tax in Barbados. Most failures were attributed to insufficient publicity and weak strategic direction rather than technical limitations. Curaçao’s e-filing rollout shows what is possible when the technology is paired with sustained adoption support, multilingual access, and tax advisor enablement. Tax e-filing software designed for Caribbean and small island governments needs to handle multiple tax types, integrate with local agencies, and support the languages and operational realities of the jurisdiction.