Even more striking were the 80% who said they would be willing to invest or donate 5% of their annual salary for a second citizenship — more than they spend on monthly rent.
Luckily, a number of countries offer Citizenship by Investment (CIP) programs where money — normally invested in real estate — can actually buy a second passport, and the elite status that comes along with owning citizenship in another country.
Other programs offer "elite residency" — an extended visa with perks — in exchange for similar investments.
Nuri Katz, President of Apex Capital Partners, an international advisory firm that specialises in CIPs, told Business Insider: "For a lot of wealthy people having a second or third passport is important for the ability to travel. For some it's also a status symbol, like buying a fancy car to show your friends."
He added that along with the travel benefits and the status that comes along with owning real estate around the world, the programs also allow people to manage their tax burdens.
"Second citizenship is becoming more than just getting a passport," he said. "There are certain advantages towards using second citizenship to create residence in countries where tax burdens would be lower than where you are at the current time."
However, Katz explained there's a difference between CIPs and residency programs.
"Citizenship is forever, and cannot be taken away unless you received it under fraudulent circumstances," he said. "You also get a passport."
Meanwhile, as laws change, a residency visa can be taken away — but it's a more affordable way to get the perks that come along with living in another country.
Whether you choose to splash out for full citizenship or you invest in residency, here are 23 countries where money can buy you a second passport — or at least a chance to live long-term abroad — ranked by cost, from cheapest to most expensive.
Countries where you can buy a second passport
Countries where you can buy a second passport
23. Thailand — 'Elite residency' from THB 500,000 ($15,253 or £11,793).
A donation to the National Transformation Fund of $100,000 (£77,113) for a single applicant, or $200,000 (£154,226) for a family of four, or;
A real estate investment of $200,000 (£154,226).
=19. Antigua and Barbuda — Citizenship from $100,000 (£77,786).
There are three ways to get citizenship through investment in Antigua and Barbuda:
Real estate investment of a least $400,000 (£308,452), or;
A donation to the National Development Fund of $100,000, or;
A $400,000 investment in an existing but newly-created business venture.
=17. St. Kitts and Nevis — Citizenship from $150,000 (£116,657).
Following the devastation St. Kitts and Nevis faced after last year's hurricane season, pricing for the CIP programme has been adjusted, according to Katz. Its citizens also now have access to more than 150 jurisdictions worldwide, since the country has signed travel treaties with the likes of Russia, Moldova, Nepal, India, Indonesia, Rwanda, and Taiwan within the last year.
Here are your options, according to Henley & Partners:
A non-refundable donation of $250,000 for a single applicant to the SIDF, a non-profit foundation which funds the developent of alternative industries to support the national economy, or;
A non-refundable donation to the SIDF of $300,000 for an applicant with up to three dependants, as well as an additional $25,000 per additional dependent, or;
A non-refundable contribution of $150,000 to the SGF, a fund which supports economic growth in all sectors of the economy, with an additional $25,000 for a spouse or $10,000 for each additional applicant, or;
The purchase of real estate valued at at least $200,000 which cannot be sold for a seven-year period, or;The purchase of real estate valued at at least $400,000 which cannot be sold for a five-year period.
=17. Grenada — Citizenship from $150,000 (£115,910).
There are two ways to get citizenship through investment in Grenada:
A $150,000 (£154,226) donation to the Grenada National Transformation Fund, or;
Real estate investment of at least $350,000 (£269,874), plus some additional fees.
16. Vanuatu — Citizenship from $155,000 (£120,878).
According to the latest CBI Index, the Vanuatu Contribution Programme (VCP) is one of two active citizenship by investment schemes, alongside the Development Support Programme (DSP), but under the DSP citizens cannot vote or participate in political life.
Under the VCP, here are the requirements:
A minimum contribution of $130,000, plus $25,000 in processing fees, and;
A minimum net worth of $250,000.
15. Cambodia — Citizenship from 1bn Cambodian riels ($245,230 or £191,309).
While the Cambodian senate approved a draft law on June 11, 2018 that could alter the country's economic citizenship landscape (and increase the investment thresholds,) for now, these are the options:
Invest 1.2bn Cambodian riels ($294,276 or £229,571) into the nation. Investment must be approved by either by the Cambodian Development Council or by the Royal Government, or;
Donate 1bn Cambodian riels ($245,230 or £191,309) for the restoration and rebuilding of Cambodia’s economy.
Applications must also have knowledge of Khmer history and language, and must travel to Cambodia to obtain good behaviour, police, and health certificates, as well as to sign the relevant citizenship oath.
14. Moldova — Citizenship from €250,000 ($289,692 or £225,885).
Minimum investment of €500,000 (£438,602) in real estates, or;
Minimum investment of €1 million in shares of Spanish companies, or;
Minimum deposit of €1 million at a Spanish bank, or;
Minimum investment of €2 million in government bonds.
After five years, applicant can request permanent residency.
After 10 years, they can request citizenship.
8. Bulgaria — Citizenship from 1 million BGN (£461,422 or $593,384).
There are two investment options in Bulgaria.
Investment option one:
A 1 million Bulgarian lev (£448,443) investment in a full-guaranteed government bond for five years.
The investment will be returned to the investor after the term without interest.
The fast-track option:
Investment of 1 million lev (£448,443) in government-guaranteed bonds, and;
Investment of an additional 1 million lev (£448,443) one year later.
At least one year of permanent residency
You must hold both investments for at least two years after the citizenship is granted.
7. Canada — Citizenship from $800,000 (£476,020 or $612,075).
Created by the Canadian government to attract wealthy business people to the country, the Immigrant Investors Program means you can gain permant residency if you meet the following four criteria, according to Henley & Partners:
Demonstrate proper business experience — must have previously managed or operated a qualified business for at least two out of five years preceding your application, and;
You (and your spouse) must have a personal net worth exceeding $1.6 million, and;
Entire family must complete and pass Canada's medical and security evaluations, and;
You make an investment of at least $800,000 for a period of five years under one of the two available programs.
The Federal Immigrant Investor Program
This program has been closed since its annual application cap was filled in 2011.
However, it does not apply to Quebec.
The Quebec Immigrant Investor Program
Investor must obtain a Certificate of Selection of Quebec before applying for health and security screening to be admitted to Canada.
Once admitted, you don't have to live in Quebec, as all Canadian residents have freedom of movement and establishment across provinces and territories
=5. Turkey — Citizenship from $1 million (£779,855).
Launched in January 2017, Turkey's economic citizenship programme offers five options, three of which involve investment over three years, according to the CBI Index.
The first three options are:
Purchase a property valued at $1 million, or;
Deposit $3 million into a Turkish bank, or;
Invest $3 million in government bonds.
But there are two more routes:
Investment of $2 million in fixed capital, or;
The creation of 100 jobs in Turkey.
=5. Malta — Citizenship from €880,000 (£792,220 or $1 million).
The current investment options in Malta are:
A non-refundable contribution of at least €650,000 (£569,925) to National Development and Social Fund, and;
Purchase of €150,000 (£131,521) in government stocks/ bonds, and;
A property transaction, which can include a purchase (for a minumum of €350,000) or a rental (for a minimum of €16,000 per year), held for five years.
4. Australia — Residency from $1.5 million AU (£841,349 or $1.08 million)
Australia boasts a residency program that can lead to citizenship in the long term. However, it's on the more expensive end.
A personal net worth of a least $2.25 million AU (£1.3 million) which must apply for the two years previous to the individual's application, and;
An investment of $1.5 million AU (£885,299) into an Australia project or enterprise, which will in turn benefit the Australian economy.
3. Cyprus — Citizenship from €1.5 million (£1.35 million or $1.74 million).
Luke Hexter, director of global citizenship and residence planning company Knightsbridge Capital Partners, told BI that the UK Tier 1 Investor Visa is one of its most popular.
Here's how it works:
Investment of £2 million into the UK economy (in UK government bonds, share capital or loan capital in active and trading UK-registered companies, other than those principally engaged in property investment)
Applicants must be at least 18 years of age and be from outside the European Economic Area (EEA) and Switzerland.
The visa allows you to stay for 3 years, 4 months, which can be extended a further 2 years.
Applicants can apply for indefinite leave to remain after 5 years in the UK.
Applicants can apply for British citizenship after spending 6 years in the country.