Updated October 30, 2026.
A Thai Non-B employment application usually depends on documents held by three parties: the applicant, the employer and the relevant government authority. A complete passport folder cannot compensate for an unsigned employment letter or missing employer evidence. Assign each required item to the organisation that can properly issue it.
I would ask HR to name the procedure before requesting “all company documents.” An overseas visa application, a work-authorisation submission and an extension of stay are separate transactions. Their supporting records can overlap while their checklists, signatures and timing differ.
Identify the route at the top of the worksheet
Record the applicant’s present location, nationality, passport number and current permission if already in Thailand. Add the proposed employer’s exact legal name, role and intended application authority. State whether the case is standard employment, teaching, a BOI arrangement or another identified route.
For an overseas example, the Royal Thai Embassy in London’s Non-B guidance separates general employment from business visits and teaching. Its general employment section identifies company registration, business information, employment confirmation, signatory identification and relevant labour approval or existing work-permit evidence for its stated circumstances.
Those items help define the HR work, but London is not the receiving authority for every applicant. Save the actual mission or office checklist with its access date. If the online application asks for an additional item, add it to the worksheet rather than assuming an older downloaded list is complete.
The Non-B versus work permit guide explains the permission sequence before you begin collecting records.
Applicant documents: what HR needs from you
Give HR a clear copy of the current passport and tell them about an upcoming renewal. A letter prepared with an old passport number can require replacement even if the name is unchanged. Identify which passport will be used for the actual application and travel.
Prepare the photograph, location evidence and personal documents required by the chosen mission. If qualifications, employment history or professional evidence are requested, check whether translations or authentication are required. Do not pay for every document to be legalised without knowing which authority needs it and in what form.
If already in Thailand, supply the relevant entry, visa and extension pages. Include the latest decision rather than only the first visa in the passport. The employer needs to know the real permission end date and whether the existing stay relies on a job that is ending.
Tell HR about facts affecting timing, such as travel, a passport held by another authority or a background record still being produced. Keep unnecessary personal information out of broad workplace email chains; agree a suitable document channel with the people handling the application.
Employer document matrix
Use the receiving authority’s exact wording in the final worksheet. The following categories show who normally controls the information and which errors deserve a careful check.
| Employer evidence | Responsible issuer or owner | Review before submission |
|---|---|---|
| Company registration or business licence | Company secretary or authorised company contact obtaining the official record | Exact legal entity, issue date, requested certification and complete pages |
| Company profile or operations details | Employer | Actual business activity, address and consistency with the offered role |
| Employment confirmation | Authorised employer signatory | Applicant name, passport details where requested, title, duties and proposed dates |
| Contract or appointment evidence | Employer and applicant as required | Terms match the application and the role genuinely offered |
| Signatory identification | Authorised signatory | Person matches the signature and any authority requirements |
| Labour approval for the visa stage | Employer coordinating the relevant authority | Correct applicant and employer, current status and applicable route |
| Existing work permit for a relevant renewal case | Holder and employer | Current document and relationship to the application being made |
| BOI documentation where applicable | Employer’s BOI coordinator and relevant authority | Approved entity, position and individual procedure correctly identified |
| Teaching institutional evidence where applicable | School or university and education authority | Institution registration, appointment and required approval correspond to the role |
| Additional requested financial or operational records | Employer’s authorised finance or administrative team | Correct reporting period and the certification the checklist requires |
Avoid turning the last row into a universal corporate ratio or capital requirement. Different visa, extension and work-authorisation routes can use different criteria. The employer should obtain the applicable list and demonstrate its own eligibility under that procedure.
Review the employment letter before signature
A letter should describe the actual job and the transaction it supports. Check the addressee, applicant identity, employer legal name, work location and proposed employment details required by the checklist. An invitation for a five-day meeting should not be reused as an employment letter for an ongoing position.
Read the dates together. If the contract begins on one date, the visa letter proposes another and the travel booking shows a third, explain or correct the difference. The solution may be a revised intended start date while approval is pending. It should not be an applicant quietly editing a signed letter.
Confirm who may sign and whether a company stamp or supporting identification is required. A real employee’s signature does not necessarily establish the authority required by the receiving office. If the authorised signatory is travelling, arrange the signatu
employer documents for checklist
Use this guide to compare employer documents for. Confirm employer documents for against your current record. Keep a written record of employer documents for and review employer documents for before you submit documents.
re process before the rest of the pack is ready.
Keep a draft for review and a clearly labelled signed final version. Remove superseded drafts from the submission folder so that the wrong salary or passport number is not uploaded accidentally.
Labour evidence is an authority document
Where the visa checklist requires prior labour approval, HR needs to establish how that approval is obtained and which current document proves it. A company letter saying that an application will be made is not automatically equivalent to the required authority’s approval.
The Vienna Non-B employment page provides another mission-specific example of employment evidence, including WP3 or a work permit in the stated renewal situation. Check the current terminology and submission process for the actual route. Do not assume the title used in an old template is the current document your mission requires.
Ask HR to record the submission date, reference, status and expected output. “Applied” should remain distinct from “approved.” If the authority requests more employer information, assign that request to the company contact able to obtain it.
Work permission after entry and an extension of stay can require further steps. The employment folder should show who owns those tasks before the applicant travels, even if the later application cannot yet be filed.
Use a tracking sheet that shows dependencies
A hypothetical company has offered an analyst role and is preparing an overseas employment visa pack. Its working sheet might contain the following entries. These are example task statuses, not a real employer’s records or a promised timetable.
| Item | Owner | Example status | What happens next |
|---|---|---|---|
| Current passport copy | Applicant | Received and checked | HR uses this identity in every final letter |
| Company registration | Company secretary | Official record ordered | Check issue date and required certification on receipt |
| Employment letter | HR | Draft reviewed | Authorised signatory signs the corrected final version |
| Signatory ID | Signatory | Awaiting secure copy | Match the supporting ID to the person signing |
| Labour evidence | Employer’s handling officer | Relevant application pending | Save the issued result before marking the visa pack ready |
| Location evidence | Applicant | Document selected | Check it meets the mission’s actual jurisdiction instruction |
| Complete visa pack | Named coordinator | Waiting on two items | Perform one complete consistency review after both arrive |
A “waiting” status should identify the missing output. Otherwise the applicant and HR can each believe the other is responsible for a delay. If a dependency slips, update the intended submission and working-start plan together.
Teaching and BOI files need their own branches
For teaching, identify which qualification, background and institution documents the mission requests. The school should state which professional or education-authority process applies to the role and who will prepare it. See teacher Non-B documents for that division of work.
For a BOI case, involve the employer’s BOI coordinator before ordering a standard company pack. The BOI OSOS guidance describes the coordinated route and its systems. Confirm which approvals relate to the company, position and applicant. A promotion certificate alone should not be labelled as proof that every permission for the employee is finished.
Keep special-route evidence under a clearly named tab. If an adviser changes the proposed route during preparation, review the checklist again. Reusing some documents may be sensible; assuming all requirements remain identical is not.
Handle changes and corrections visibly
If the applicant renews a passport, notify every issuer still preparing a letter. If the company changes the role, location or proposed dates, assess whether approval documents also need updating. Make the change once in a master fact sheet, then review all affected records.
Ask the issuer to correct an official document or signed employer letter. Keep a short explanation when a legitimate change needs to be shown. Do not retouch stamps, replace signatures or edit an authority’s approval to match a new plan.
A job transition creates an additional dependency: the old employer’s cancellation or termination records and the new employer’s readiness. Review both permission to stay and work authorisation before the employment ends. The changing employers guide explains that handover.
One final review before submission
Compare names, passport numbers, company entity, role and dates across the complete pack. Open each digital attachment and read its pages at a normal viewing size. Confirm that requested signatures, stamps and certifications are present, and that a draft or expired extract has not replaced the final document.
Record which documents were submitted and keep the application reference. If further evidence is requested, map each request to its issuer. A bank, school, employer or authority should receive the actual correction needed rather than a vague demand to “send everything again.”
Separate government charges from translations, corporate-document production and professional fees. Check the current official fee for the procedure being filed instead of treating a broad service price as a government charge.
For help coordinating the route, see Visa Support Thailand work permit support or contact the team. Include the employer type, role, current location and permission date, and identify the employer contact responsible for documents. A precise handover makes it easier to find the item holding up the application.