Changing visa category without a gap

A change of visa category in Hong Kong goes wrong most often where one limit of stay has to join the next, where the question is whether you may work while you wait, where you have to leave, and where a gap touches the 7-year count of ordinary residence. The points below follow the Immigration Department pages for each scheme, Guide ID 991, and section 2 of the Immigration Ordinance (Cap. 115), checked 18 October 2026. These points are not legal advice.

3 baselines that apply to every category

1. The limit of stay is the only lawful basis for remaining in Hong Kong. If you are subject to a limit of stay, you must leave Hong Kong before it expires. That remains true if you have already applied for an extension or a change of category and the application is still being processed. The exception is approval by the Director of Immigration in a special case.
2. A breach of a condition of stay, including overstaying, is a serious criminal offence. You can be prosecuted and removed from Hong Kong.
3. Section 2(4)(a)(ii) of the Immigration Ordinance (Cap. 115): a period in which you remain in Hong Kong in breach of a condition of stay is not treated as ordinary residence in Hong Kong. Days of overstaying do not count toward the 7 years.

From a student visa to IANG

1. A student visa is generally granted for the length of the programme. For a full-time post-secondary programme the ceiling is 6 years, subject to the validity of the travel document.
2. An IANG application within 6 months of the date on the graduation certificate does not require a job first. Processing takes about 2 weeks.
3. If the student visa is close to expiry and the results are not yet out, you may apply to extend your stay as a student while you wait for the results. A student extension is accepted only if it is submitted within the 4 weeks before expiry. While you wait, you must not take up employment unless the Immigration Department has approved it in advance.
4. Once you have completed the credits required for graduation, you can no longer do internship work as a student (Note 2 on the Immigration Department student page).
5. The suggested way to join them is this. Before the student visa expires, either IANG is already approved, or you have already submitted an extension of stay as a student. If neither is true and the limit of stay expires, you must leave Hong Kong. After you leave, you may submit an IANG application from outside Hong Kong within 6 months of graduation. On ID 990A, the question "Is the applicant currently in Hong Kong?" has a "No" option.

IANG extension, and a change of job under IANG

1. Submit the extension within the 3 months before expiry, and at the latest 6 weeks before expiry. When you submit, you must already have the employment.
2. A change of job does not need prior approval. The gap between leaving one job and starting the next must not run past the day the limit of stay expires. If you are still not employed before that day, you cannot use the online extension service.
3. The contract period affects the period granted. The period granted is generally not more than 3 years, or until the contract ends, whichever is shorter.

A change of job under GEP or ASMTP

1. An employment condition applies. You may do only the work the Director has approved. A change of employer requires an application to the Immigration Department for approval beforehand.
2. You should not start work for the new employer before the new employment is approved.
3. A non-local graduate of a Hong Kong institution who is working under the General Employment Policy (GEP) or the Admission Scheme for Mainland Talents and Professionals (ASMTP) may apply to switch to IANG at any time (IANG frequently asked questions, question 19). After the switch, a change of job does not need prior approval.

From the Top Talent Pass Scheme or QMAS to an extension

1. The first Top Talent Pass Scheme permission does not require a job. An extension does. You must show that you are employed in Hong Kong and have a stable income, or that you have started or joined a business. If, throughout the first permission, you neither worked in Hong Kong nor operated a business here, the extension will meet difficulty.
2. For an extension of a Quality Migrant Admission Scheme (QMAS) permission under the General Points Test, when the 36 months expire, you must show that you have taken steps to settle in Hong Kong and that you are living here. Examples given are employment in a paid post, or a business you have established.
3. Question 5 of the Top Talent Pass Scheme frequently asked questions: if, at the time you submit or within the 6 months before that, you have already been permitted to stay under any talent admission scheme, the employing company must also complete the online form or ID 990B. Moving from one talent scheme to another means preparing the employer's materials in advance.

Leaving while you wait, and coming back

1. A person who is not a permanent resident may return to Hong Kong during a valid limit of stay without a re-entry visa, so long as the circumstances in which the resident status was obtained have not changed.
2. You must be physically in Hong Kong when you submit an extension, when you pay the fee, and when you collect the e-Visa. If you need to leave while the extension is being processed, you must be in Hong Kong when you pay and when you collect it, and your trip must not cross the day the limit of stay expires.
3. A first application, for example IANG after 6 months from the graduation-certificate date, may be submitted from outside Hong Kong. After approval, you enter on the e-Visa.

Does time outside Hong Kong break the 7 years

1. Section 2(6) of the Immigration Ordinance: a temporary absence from Hong Kong does not mean that you have ceased to be ordinarily resident in Hong Kong. The circumstances to be considered include the reason for being away, the length of each absence, and how often you are away; whether you have a habitual residence in Hong Kong; whether you are employed by a company based in Hong Kong; and where the principal members of your family (your spouse and minor children) are.
2. The Ordinance states no fixed number of days away that breaks ordinary residence. Figures that circulate online, of 180 days, of 3 months, and of 6 months, do not appear on the Immigration Department website or in the Immigration Ordinance (checked 18 October 2026).
3. Part 4(2) of form ROP145, the application for a permanent identity card, asks you to declare any period during ordinary residence in which you were outside Hong Kong for 6 consecutive months or more, the reason, and the place, and to attach proof. That is a declaration requirement. It is not the standard for a break in ordinary residence.
4. Days of overstaying do not count. Section 2(4)(a)(ii) says so in terms.

Common gaps in permission, and what to do

1. The student visa expires before the date on the graduation certificate, and you have not applied for an extension. Leave before the limit expires, or apply before it expires for a student extension while you wait for the results.
2. You leave a job before the IANG limit expires, and the next job is not yet in place. You must leave Hong Kong before the limit expires. Once more than 6 months have passed since graduation, you reapply for IANG on a new letter of appointment, as an application made after the 6-month window.
3. The extension is refused, and only a few days of the limit of stay remain. Leave on time first. Then consider a fresh application, or an objection under section 53 of the Immigration Ordinance (a written objection to the Chief Secretary for Administration, lodged within 14 days). The objection itself does not give you a right to remain in Hong Kong.
4. The passport or travel permit has less than 6 months of validity left. The online extension service does not apply. Replace the document first, then submit.
5. A GEP or ASMTP holder is laid off. A permission that carries an employment condition depends on the original employer. Find out promptly whether you can switch to IANG, if you graduated from a Hong Kong institution, or whether a new employer can apply for approval to change your employment.

A checklist for joining one permission to the next

1. Write down the last day of your current limit of stay.
2. Write down the earliest day you can submit the next category, and the latest day.
3. Check whether you may work while you wait. You may not work during a student extension. You may not work for a new employer under GEP or ASMTP before the change is approved. An IANG holder or a Top Talent Pass Scheme holder may work freely during the valid period.
4. Check which documents the employer must provide, and when you can get them.
5. Check that the travel document is valid for 6 months or more.
6. Keep every e-Visa, every extension label, and the arrival and departure records. When you apply for permanent residence after 7 years, the form has to match those records.

Sources

• Immigration Ordinance (Cap. 115), section 2(4) and section 2(6)
• Immigration Department webpages for Students, Immigration Arrangements for Non-local Graduates, the General Employment Policy, the Admission Scheme for Mainland Talents and Professionals, the Top Talent Pass Scheme, and the Quality Migrant Admission Scheme (checked 18 October 2026)
• Immigration Department, Guidebook for Entry for Employment as Professionals in Hong Kong, ID(E)991 (04/2026 edition)
• Immigration Department, ROP145, Application for Verification of Eligibility for a Permanent Identity Card (06/2024 edition)
• GovHK, notes on the online service "Apply for extension of stay"