The research was conducted by Annisa Janitia Rahma, Aqela Farel, Syfa Amelia Anggit, Mega Metalia, and Ratna Septiyanti. Their findings were published in the Indonesian Journal of Accounting and Financial Technology (CRYPTO) in 2026.
The study highlights how PPnBM has evolved beyond a simple revenue-generating tax into a broader fiscal policy instrument designed to regulate consumer behavior, reduce social inequality, and encourage environmentally responsible purchasing decisions. The findings are especially relevant as Indonesia continues to address economic inequality, digital commerce growth, and sustainability challenges.
Luxury Consumption and Social Inequality Remain Major Concerns
The researchers explain that luxury consumption has become increasingly tied to lifestyle trends, social status, and digital culture. Expensive vehicles, luxury homes, premium jewelry, and imported high-end goods are often used as symbols of prestige among high-income groups.
According to the study, this pattern can widen visible economic gaps in society and reinforce excessive consumerism. Indonesia’s government therefore uses PPnBM as a regulatory tax policy to discourage non-productive luxury spending while generating public revenue for broader social programs.
The study notes that Indonesia’s tax policy reflects the principle of “vertical equity,” meaning individuals with greater purchasing power should contribute a larger tax burden than lower-income groups.
“PPnBM reflects the principle of vertical justice in taxation policy by imposing higher tax burdens on individuals with greater purchasing power,” the researchers from the University of Lampung wrote in the article.
Research Examined Fiscal Policies From 2021 to 2026
The research used a qualitative descriptive approach based on secondary data collected from government regulations, academic journals, fiscal policy reports, and Indonesian taxation publications issued between 2021 and 2026.
The researchers reviewed official documents from Indonesia’s Ministry of Finance, the Directorate General of Taxes, national statistics agencies, and prior academic studies related to fiscal policy, consumer behavior, and social justice.
Instead of focusing only on state revenue, the researchers analyzed how PPnBM influences purchasing behavior, economic redistribution, and policy adaptation in Indonesia’s modern economy.
The study also examined policy changes introduced after the COVID-19 pandemic, including tax incentives for the automotive industry and the introduction of carbon-emission-based taxation policies.
Key Findings of the Study
The University of Lampung research identified several important impacts of Indonesia’s luxury goods tax system:
- PPnBM helps reduce excessive luxury consumption among high-income consumers.
- Higher taxes increase the final price of luxury goods, which affects purchasing decisions.
- Revenue from PPnBM supports redistribution through education, healthcare, infrastructure, and social assistance programs.
- Carbon-emission-based tax rates encourage consumers to choose environmentally friendly vehicles.
- Digital tax monitoring has improved oversight of luxury goods transactions.
- The tax system contributes to reducing visible social inequality linked to luxury consumption.
The researchers found that Indonesia’s luxury tax policy became increasingly adaptive between 2021 and 2025.
In 2021, the government temporarily relaxed PPnBM rules for motor vehicles to help revive the national automotive industry during post-pandemic economic recovery. The policy boosted domestic vehicle purchases and helped stabilize manufacturing employment.
By 2022, the government shifted toward emission-based taxation. Vehicles with lower carbon emissions received lower PPnBM rates, while larger, high-emission vehicles faced higher tax burdens.
The study describes this shift as evidence that Indonesia’s fiscal policies are beginning to integrate environmental sustainability into taxation systems.
Digital Commerce Creates New Tax Challenges
Although PPnBM has shown positive effects, the researchers warn that digital commerce and cross-border online transactions create new enforcement difficulties.
Luxury imported goods are increasingly sold through digital platforms, making tax supervision more complex. Without stronger digital monitoring systems, the researchers argue, governments risk losing potential tax revenue from online luxury transactions.
The study also points out that definitions of “luxury goods” continue to change alongside technological and social developments. Some products once considered exclusive are now widely used by the general public.
Because of this, the researchers recommend regular evaluation of luxury goods classifications and taxation categories to ensure PPnBM remains relevant to modern economic conditions.
The researchers also recommend stronger integration between taxation databases and digital monitoring systems to improve enforcement efficiency.
Environmental and Economic Implications
The study emphasizes that PPnBM now carries environmental significance in addition to its fiscal and social functions.
Indonesia’s emission-based automotive tax policy demonstrates how luxury taxation can support green economic goals by encouraging lower-emission consumer choices.
The researchers describe PPnBM as part of a broader “green taxation” strategy in which taxes are used not only to collect revenue but also to influence sustainable economic behavior.
At the same time, the study argues that transparent use of tax revenue is essential for maintaining public trust. Citizens are more likely to support taxation policies when they see clear benefits through public infrastructure, healthcare, education, and social welfare programs.
The research concludes that optimizing Indonesia’s luxury goods tax policy will require adaptive regulations, stronger digital supervision, and better alignment with changing socioeconomic conditions.
Author Profile
Annisa Janitia Rahma is the corresponding author of the study and specializes in taxation policy and fiscal governance. She collaborated with Aqela Farel, Syfa Amelia Anggit, Mega Metalia, and Ratna Septiyanti, a research team from the University of Lampung focusing on taxation systems, fiscal policy, consumer behavior, and social justice in Indonesia.
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