The country has a transparency score of 38 points out of 100, an increase of 23 points from the previous survey in 2017, according to the biennial Open Budget Score (OBS) released by U.S.-based non-profit International Budget Partnership.

Its score is still lower than the global average of 45.

In its seventh edition, the survey measured budget transparency in 117 countries and territories in terms of public access to information on how central governments raise and spend public resources. It assesses the online availability, timeliness, and comprehensiveness of eight key budget documents using 109 equally weighted indicators and scores each country on a scale of 0 to 100.

The eight documents are: pre-budget statement, executive budget proposal, enacted budget, citizen budget, in-year report, mid-year review, year-end report and audit report.

In Southeast Asia, Vietnam's budget transparency is weaker than the Philippines (10th), Indonesia (18th), Thailand (30th) and Malaysia (55th).

Vietnam has increased the availability of budget information by publishing its executive budget proposal as well as citizen budget and audit report online while increasing in-year reports, the survey revealed.

However, the country should produce and publish a mid-year review online, which includes revised projections for the full fiscal year for expenditure, revenue, and debt.

New Zealand topped the Open Budget Score index, followed by South Africa and Sweden.

In response to the OBS 2019 result, the Ministry of Finance said it is committed to ensure greater state budget transparency and wider public participation.

Vietnam posted a budget collection of VND1.54 trillion ($67.4 billion) in 2019, up 8.7 percent year-on-year, the ministry said.

It aims to have state budget collection of VND1.5 trillion ($65.8 billion) this year, according to a resolution passed by the National Assembly last year.

For decades, HCMC has been the country's largest moneymaker and assigned the highest state budget collection target.