There are more than 15,000 English-medium international schools in the world, according to ISC Research. Most are decent places to work. Some are excellent. A few will hold your passport, pay you late and leave you on a tourist visa in a country where you have no rights.
I have spent two decades leading schools across Europe, China, Southeast Asia and Africa, and I have helped schools through accreditation. That means I have sat on the hiring side of the table many times. This guide shows you what a school leader looks for when sizing up a school, and the red flags that should slow you down before you sign anything.
Research the school at three levels
Educators Going Global suggests researching every offer at three levels: the school, the city and the country. I think that is the right frame, because a bad experience abroad rarely comes from one place.
The school. Look at the website, the accreditation, the curriculum and the leadership team. Check how long the head of school has been there. Read the staff list if it is public and see how many names changed from last year.
The city. A good school in a city that does not suit you can still be a hard two years. Look at air quality, housing costs, transport, healthcare and what you can do on weekends. If you have kids, look at activities and safety. If you climb or hike like my family does, see how far the nearest crag or trailhead is.
The country. Learn how work visas actually work there, how foreigners are treated, how easy it is to leave, and what happens if you have a contract dispute. Some countries give foreign teachers real protection. Others give the employer most of the power. Know which kind you are walking into.
Warning signs in the job ad
The job ad is your first data point. Good schools write clear ads because they want the right people to apply.
Be careful when an ad lists no school name, no city or no subject details. Be careful when the salary is described only as “competitive” with no range and no benefits listed. Most established international schools list housing, flights, health insurance and a contract length.
Watch for language that does not match the job. A school that asks for “native speakers” with “any degree” and “no experience needed” is often a language center, not an international school. If you are not sure of the difference, read international school vs TEFL.
Another flag is a school that seems to post the same jobs every few months. Constant hiring for the same roles usually means people are leaving early.
Warning signs in the interview
An interview goes both ways. Good schools notice the questions candidates ask, because good questions show you are serious. A school that will not answer your questions is telling you something too.
Pay attention to who interviews you. In a well-run school you will usually meet the head of school or a principal, and often a department head. If the only person you speak to is an owner, an agent or someone who cannot answer questions about curriculum, ask why.
Ask to speak with a current teacher. A good school will set this up without fuss. If they refuse, stall or only offer a staff member who was hired last month, treat it as a warning.
Notice how they describe the students and the parents. A school that talks only about enrollment growth and parent satisfaction, and never about learning, may run more like a business than a school.
Finally, watch the pace. Pressure to accept an offer within 24 hours, before you have seen a contract, is a classic red flag. Good schools do set deadlines, especially in the busy early months of the hiring season. But they give you time to read the contract and ask questions.
Warning signs in the contract
The contract is where problems become real. Read every line. Then read it again.
Vague housing. “Housing provided” means nothing on its own. Ask whether it is an allowance or a school apartment, how much the allowance is, who pays utilities and the deposit, and whether you can see photos. A school that cannot answer has probably not thought about it.
Salary details that do not add up. Check the currency, whether the figure is gross or net, how often you are paid and when. Ask about late payment. If you hear anything about teachers waiting for salaries in the past, take it seriously. Late salary is one of the clearest signs a school is in financial trouble.
Penalties for leaving. Some contracts charge large fees if you break the contract early, or claw back flights and bonuses. Know exactly what it costs to leave.
Missing basics. Look for a start and end date, teaching load, health insurance details, flights, end-of-contract gratuity if offered, and a clear process for ending the contract on both sides. For a sense of what a normal package looks like, see international school teacher salary and benefits.
A contract in a language you cannot read. In some countries the local-language version is the legal one. Ask for an official translation and have someone you trust check it.
Warning signs in the visa process
This is the one area where you should never compromise. Legal work authorization protects you. Without it, you have almost no leverage if something goes wrong.
Walk away if a school asks you to arrive on a tourist visa and work “while the paperwork is processed” with no clear legal path. Rules differ by country, so check the official immigration site for the country you are going to. But working without the right visa can mean fines, deportation or a ban, and the school will rarely carry that risk for you.
Be very wary of any school that wants to hold your passport. In many places that is illegal or against basic labor standards. Your passport should stay with you, except for short, documented handovers to immigration offices.
Also watch for a school that asks you to pay visa or recruitment costs up front with no receipt or official breakdown. Reputable schools usually cover work visa costs or spell them out clearly in the contract.
Accreditation, ownership and governance
Accreditation is not a guarantee of a happy staffroom, but it means an outside body has reviewed the school against standards. Recognized accreditors include Cognia, ACS WASC, NEASC, MSA-CESS and the Council of International Schools. If a school claims to be an IB World School, you can check that in the IB’s “Find an IB World School” search.
Be careful with accreditors you have never heard of. Some organizations sell “accreditation” with little or no review. If you cannot find the accreditor’s standards, its list of member schools or its own recognition, treat the claim as unproven. I walk through the steps in how to verify international school accreditation.
Ownership matters too. Many international schools are non-profit and answer to a board. Many others are for-profit, owned by a company, a group or an individual. Both models can produce great schools, and both can produce bad ones. I would not rule out a school just because it is for-profit.
What I look for is governance. Is there a board, and does it include people beyond the owner and their family? Does the head of school have real authority over hiring, curriculum and discipline? An owner-run school with no board and no separation between the money and the educational decisions carries more risk. Decisions can change overnight, and there may be no one to appeal to.
How to check turnover and reputation
Turnover is one of the most honest numbers a school has. A healthy school still loses teachers every year, because people move on. A school that loses a large share of its staff every year, or several heads in a few years, usually has deeper problems.
Talk to current teachers. This is the best source you have. Ask the school to connect you with one or two, and also try to find others on your own through LinkedIn or teacher groups. Ask how long they have been there, whether they plan to renew, whether pay arrives on time and how leadership handles problems. Listen for hesitation as much as for words.
Read International Schools Review, with caveats. International Schools Review collects anonymous teacher reviews of schools. Full access has generally required a paid membership, so check current details. It can be useful, especially when many reviews over several years describe the same problem. But reviews are anonymous, often old and often written by the angriest people. A school can change a lot after a new head arrives. Look for patterns, not single stories.
Ask recruiters. Agencies such as Search Associates and ISS work with many schools and often hear about problems. A recruiter will not always tell you everything, but they can tell you whether a school has a history with them. For more on agencies and job boards, see where to find international school jobs.
Search the news. A quick search of the school’s name with words like “closure,” “lawsuit” or “teachers unpaid” takes two minutes and can save you two years.
Questions to ask before you sign
You do not need to ask all of these in the interview. Spread them across the interview, follow-up emails and your conversation with current teachers.
- How many teachers left last year, and why?
- How long has the head of school been in the role?
- Who owns the school, and is there a board?
- Which body accredits the school, and when is the next visit?
- What visa will I enter on, and who pays for it?
- What exactly does the housing benefit cover?
- When and how is salary paid, and has it ever been late?
- What does it cost me if I need to leave early?
- Can I speak with a current teacher in my subject or grade level?
How a school answers matters as much as what it says. Clear, direct answers are a good sign. Defensive or vague answers are not.
What to do if you already signed with a bad school
Sometimes you only see the problems after you arrive. If that happens, stay calm and protect yourself first.
Keep copies of everything: your contract, pay slips, visa documents, emails and any promises made in writing. Make sure you know where your passport is. If it is being held, ask for it back in writing.
Raise problems through the proper channel, in writing, and keep your tone professional. Some issues really are early mistakes that get fixed. Others are not.
If things do not improve, find out your options. Check local labor law, contact your embassy if your documents or safety are at risk, and talk to the recruiter who placed you if there was one. If you decide to leave, know the cost and plan the timing. Leaving mid-year can affect your references, so be honest with future schools about why you left. Most experienced school leaders understand that a bad school happens to good teachers.
Then use what you learned. Your next search will be sharper. If you are still at the start of this path, my guide on how to become an international school teacher covers the full process.
FAQ
What is the biggest red flag for an international school?
Any request to work without the proper visa. It removes your legal protection, and a school willing to take that risk with you is likely cutting corners elsewhere.
Are for-profit international schools bad?
No. Many for-profit schools are well run and pay well. Look at governance instead: a real board, a head with authority and a stable leadership team matter more than the ownership model.
How do I find out a school’s teacher turnover?
Ask the school directly, compare staff lists across years if they are public, and speak with current teachers. Recruiters and review sites can add context.
Is International Schools review reliable?
It is useful for spotting patterns, but reviews are anonymous and can be old or one-sided. Use it alongside conversations with current staff, not instead of them.
Should I accept an offer on the spot?
You can, but only after you have read the full contract and confirmed the visa. A good school will give you a reasonable amount of time to decide.
