Step 2 of 4 · ProjectsBy jurisdiction

4 open source tax projects for Singapore.

Every project on the list for Singapore, grouped by kind. Global tools have a page of their own. Entries without a warning come first in each group; the labels mark what to check.

4 projects4 maintained3 on the map22 jurisdictions + globalFacts checked 6 Oct 2026

Browse these by tax area

Corporate tax

Tax engines

1 project

Rules-as-code that compute liabilities, returns and reforms.

tax-treaty-agentRule-engine pre-review of China's treaties with NL, SG and KR for dividends, interest and royalties.Tax engineCN · NL · SG · KRDemo

Calculators

2 projects

Small tools that compute one tax for one country.

beps2-pillar-twoTypeScript app projecting Pillar Two top-up tax for Hong Kong, Singapore and Japan groups under their regimes.CalculatorHK · SG · JPLicence unknown

TaxProvision (Singapore)Static single-page Singapore corporate tax provision workpaper, from accounting profit to chargeable income.CalculatorSGLicence unknown

Tax datasets

1 project

Rates, treaties and statistics, open and versioned.

myTransferPricing referenceSummaries of 18 OECD transfer pricing country profiles, with a prompt that reviews a Local File against one.Tax datasetAT · BE · BR · DK · FR · DE · GR · IE · IT · LU · NL · PL · SG · ES · SE · CH · UK · US

Labels mark what to check before you rely on an entry: inactive or archived code, demos, paid services and unclear licences. Only maintained projects for companies and tax authorities appear on the map. Search and filter the whole list.

Missing a project? Add it to the list.

Submit a project

Next · Step 3 of 4The gapsThe activities with no open project yet, and the partly covered ones, with what to build on.