Guide · updated 2026-10-16

What is a British School Overseas (BSO) and why it matters for teachers

A British School Overseas is a school abroad accredited under the Department for Education's voluntary scheme after an approved inspection. Accreditation is also what allows a school to offer statutory induction to early career teachers.

Plenty of schools abroad call themselves British. Fewer are accredited as a British School Overseas, or BSO. The label matters because it is a government scheme with published standards, regular inspection and public reports, which gives you something concrete to check before you accept a job.

This guide explains the scheme from the Department for Education's own guidance, how the Council of British International Schools (COBIS) relates to it, and what it means if you are a newly qualified teacher who needs to complete induction.

What the DfE scheme is and who inspects

GOV.UK describes British Schools Overseas as a voluntary accreditation scheme run by the Department for Education. A school arranges an inspection by an approved inspectorate and must show it meets the BSO standards, which are comparable to those used for independent schools in England and the national minimum standards for boarding schools. The current approved inspectorates listed on the page are Education Development Trust and the Independent Schools Inspectorate, and Ofsted monitors them. The page notes Penta International was removed as an approved inspectorate in its 15 July 2026 update.

To stay accredited, a school must be successfully inspected at least every three years. Accredited schools get a unique reference number on Get Information about Schools, and DfE publishes the latest inspection report for every accredited school.

What the standards check about staff

The DfE's Standards for British Schools Overseas guidance sets out what schools must do when appointing staff. The proprietor must check each person's identity, medical fitness, right to work in the host country and, where appropriate, qualifications. Anyone who has ever worked in the UK must supply an International Child Protection Certificate. Where those checks are not enough to establish suitability, further checks are expected.

The guidance also says an essential part of inspection is judging how far the school's British character is evident in its ethos, curriculum, teaching, care for pupils and achievements. Local law takes precedence where it conflicts with the standards, a point GOV.UK makes on the accreditation page.

Where COBIS fits

COBIS is a membership organisation for British international schools. Its Accredited Member (BSO) category is for schools that have already passed a BSO inspection. To apply, a school needs a BSO inspection report dated within the last five years and an action plan for any improvement points. COBIS says the BSO inspection is the accreditation recognised by the UK government.

COBIS accreditation is therefore a membership route that rests on the DfE inspection, not a replacement for it. If a school quotes COBIS membership, ask which category it holds and whether it also has a current BSO inspection report on GOV.UK.

What BSO status means for early career teacher induction

GOV.UK says schools without BSO accreditation cannot offer statutory induction to early career teachers, and that BSOs must belong to one of the recognised support organisations to provide it. The page lists AoBSO, BSME, COBIS, FOBISIA, LAHC, NABSS and IAPS. The statutory guidance itself is the DfE's Induction for early career teachers (England) publication, which applies to England and which GOV.UK links from the BSO page.

COBIS adds practical detail. It says induction abroad follows the same format and statutory guidance as in England and runs over two years, with a mentor separate from the induction tutor, a 10% timetable reduction in year one and 5% in year two. Schools must work with an appropriate body. It also says a school can keep offering induction for a maximum of six years after its last BSO inspection.

Checking a school yourself

Find the school on GOV.UK's list of BSO inspection reports and read the most recent one. Note the date, the inspectorate and any areas for improvement. Confirm the school's Get Information about Schools entry exists.

COBIS says induction posts are not advertised separately and that not every eligible school offers induction every year, so contact the school before you apply. Ask who the appropriate body is and who the mentor will be.

Questions teachers ask

Is every British curriculum school abroad a BSO?

No. BSO is a voluntary DfE accreditation that requires an approved inspection and re-inspection at least every three years. A school can follow a British curriculum without holding it. Check the school against DfE's published list of accredited schools.

Can I do my ECT induction at any international school?

GOV.UK says schools without BSO accreditation cannot offer statutory induction to early career teachers. BSOs also need membership of a recognised support organisation, and COBIS says not every eligible school offers induction each year, so ask first.

How long does induction take abroad?

COBIS says induction abroad follows the same statutory guidance as in England and runs over two years, with reduced timetables of 10% in year one and 5% in year two. Ask the school to confirm its arrangements in writing.

Where do I see a school's inspection report?

GOV.UK publishes the most recent BSO inspection report for each accredited school, and accredited schools must publish their latest report on their own website. Compare the two to confirm the date.

Does COBIS membership mean a school is accredited?

COBIS has several routes. Its Accredited Member (BSO) category requires a BSO inspection report from the last five years. Ask which category the school holds and check the DfE list.

Sources

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