The organizations whose records we read
Every figure on BestEOR.co links to the page it comes from. These are the organizations behind those pages that are not providers: what we read from each, its own site, and every page here that uses it.
World Bank
Its World Development Indicators: income per person, GDP, population, the labour force, unemployment and inflation for every country page.
Himalayas
Its remote job board: how many open remote jobs are restricted to people in each country, counted daily for the hiring tracker (counts only, never the jobs or the names in them).
Where we use it
PwC Worldwide Tax Summaries
Employer social security contribution rates and payroll taxes by country, beside each country's own tax authority.
International Labour Organization
Its NATLEX and EPLex labour-law databases and its conventions: leave, notice and working-time law by country.
Where we use it
- Maternity leave in every country
- Working hours in every country
- Overtime pay in every country
- Notice periods in every country
- Probation periods in every country
- Sick leave in every country
- Paternity leave in every country
- Severance pay in every country
- Annual leave in every country
- Minimum wage in every country
- Public holidays in every country
- Where a 13th-month salary is mandatory
- Employer costs in every country
- EOR vs Contractor vs COR: Which to Use Abroad (2026)
- How every figure is sourced
- The open dataset
OECD
Its Model Tax Convention and Commentary, and its guidance on when remote work creates a permanent establishment.
Internal Revenue Service
US employment-tax rules and its public list of certified professional employer organizations.
Where we use it
- EOR or your own entity, country by country
- Employer costs in every country
- Employer pension contributions in every country
- EOR vs Contractor vs COR: Which to Use Abroad (2026)
- Permanent Establishment Risk When You Hire Abroad (2026)
- What Is an Employer of Record (EOR)? 2026 Guide
- What Is a PEO? A Complete Guide (2026)
- PEO vs EOR: Which One Do You Actually Need? (2026)
- Guide: how much does an EOR cost
- How every figure is sourced
- The open dataset
US Department of Labor
US wage-and-hour rules: overtime, leave and when a worker is an employee rather than a contractor.
Where we use it
HMRC
UK employer tax guidance, including its international manual on permanent establishment.
UK Home Office
Its register of licensed sponsors and its guidance for sponsors, for which providers can sponsor a UK work visa.
Companies House
The UK company register: the legal entity behind a provider's UK sponsor licence.
European Central Bank
Its euro reference exchange rates, which convert a price published in euros or pounds into US dollars.
European Data Protection Board
Its guidelines on who controls employee data when an employer of record runs payroll.
Where we use it
KPMG
Its surveys and tax alerts on how each country treats remote workers for permanent establishment.
NAPEO
The US PEO industry association's research on PEO clients: benefits, growth and survival rates.
ESAC
Its accreditation of PEOs for financial and operational standards.
Where we use it
ISO
Its country codes (ISO 3166) and currency codes (ISO 4217), which name every country and currency in the data.
Where we use it
Zenodo
The open research archive where BestEOR.co's open dataset is published with a permanent DOI.