Murblz data: open datasets on citizenship, residence and taxes
3 datasets, every row with an official source and a check date. Free for articles, research and presentations with a link to Murblz. Last updated 7 Oct 2026.
We collect figures on second citizenship, residence and taxes from government websites only and turn them into open tables. Each dataset is updated whenever a law changes, and every row carries a check date and a link to its source.
Second passport cost in 2026: citizenship programs ranked
32 citizenship programs: what one adult pays the state for the whole route to a passport, time, visa-free access, an official source for every row.
median across contribution and investment programs: $246,400
Citizenship and residence program changes log 2025-2026
29 changes to citizenship and residence programs in 23 countries: date, before and after, a government link.
entries from 3 Feb 2025 to 1 Nov 2026
Relocation taxes 2026: countries ranked by tax
tax rules of 146 countries and four rankings: no tax on foreign income, new resident regimes, low income tax, no inheritance tax.
24 countries with no inheritance tax
How to cite the data
Name Murblz as the source and add a live link to the dataset page. Citation format: Source: Murblz. Dataset name. Page URL (version of the update date). A ready-made citation in Russian and English with a copy button is on each dataset page.
If you use a figure from a table in a chart or infographic, it is enough to put the link in its caption or in the list of sources for your piece.
Licence: free use with a link
The datasets are published under a free attribution licence (CC BY 4.0). You may copy, publish, translate, extend and use the data in commercial materials. The only condition is to credit Murblz and add a live link to the dataset page.
How we collect and check the data
- Sources are limited to laws, ministries, migration and tax authorities and official program websites. Media, rankings and private guides are not used as sources.
- Every row links to an official source and shows the check date.
- Amounts are in US dollars at the central bank rate on the date stated on the dataset page, rounded up.
- Datasets are updated whenever a law changes, and every row is reviewed at least once every 4 months.
Found a discrepancy with an official source? Write to us in the chat and we will check and update the row.
For journalists and researchers
We can give an expert comment on any country in our datasets, prepare a cut for your story or explain how a figure was calculated. Write to us in the chat on the site or to the Murblz Telegram bot.