Thailand Dependent Visa Full Service

Thai Notary Law & Service Co., Ltd.

Consultant helping a foreign client prepare visa and work-permit documents

Notarial Services Attorneys • Reg. 0405565001923

Thailand Dependent Visa — Spouse, Children, and Parents

A Dependent Visa allows the family of a foreigner holding a Non-Immigrant visa in Thailand to legally reside together — covering the legal spouse, children under 20 (including adopted), and parents of the principal visa holder. We prepare full documentation and coordinate the family’s visas in parallel — saving time and cost for the client.

Following HusbandFollowing WifeChild SponsorshipFollowing ParentsNON-O DependentO-Guardian (Children)Notarial Services AttorneysFree 24h Consultation

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Six Notarial Services Attorneys Licensed by the Lawyers Council of Thailand

Thai Notary Law & Service Co., Ltd. — Tax/Reg ID 0405565001923. Company registration and attorney certificates are displayed below.

Thai Notary Law & Service team photograph in Bangkok — Our notary and legal team — head office in Wang Thonglang, Bangkok

Business Registration Certificate of Thai Notary Law & Service Co., Ltd. — Registration No. 0405565001923 — Company Reg. No. 0405565001923

Notary License (1/6)

Notary License Miss Anutaree — Thai Notary Law & Service Co., Ltd. — Miss AnutareeCertified by The Lawyers Council of Thailand

Quick Answer

What you need to know

Thailand Dependent Visa service for spouses, children and dependents of NON-B / NON-O / Work Permit holders. Our lawyers prepare marriage certificates, birth certificates, sponsor financial proofs and lodge all paperwork at Immigration. price on request processed in 15-30 days.

•Covers spouse and children under age 20
•Sponsor financial documents prepared end-to-end

Quick Summary

›Covers spouse and children under age 20
›Sponsor financial documents prepared end-to-end

Understanding Thailand Dependent Visa — Spouse, Children, and Parents

What is a Dependent Visa and Who Qualifies

The Dependent Visa or NON-O Dependent is issued under Section 12(2) of the Immigration Act B.E. 2522 (1979) — for family members of Non-Immigrant visa holders. Eligible dependents: (1) legal spouse with Thai marriage registration or recorded Kor.Ror.22; (2) children under 20, including biological and adopted under Thai law; (3) legal parents — special case for Smart Visa and LTR holders. The visa is issued together with the principal visa, with matching validity — and ends immediately when the principal visa expires or is revoked.

Differences Across 5 Principal Visa Categories

NON-B + Work Permit: Dependents of foreign executives/employees — principal’s salary must meet nationality threshold (e.g., THB 50,000 for Europe/America / 25,000 for ASEAN). NON-O Marriage: Dependents are uncommon since the principal already has a Thai spouse, but children abroad may apply as NON-O Dependent. NON-O Retirement: Spouses under 50 (ineligible for own Retirement) may apply as Dependent. Smart Visa: Dependents may work in Thailand without an additional Work Permit. LTR Visa: Dependents share the principal’s rights, including 1-year reporting (instead of 90-day). We identify the right path and calculate family TCO.

O-Guardian — Special Case for Parents of Students

O-Guardian is a special visa for parents accompanying children studying in K-12 in Thailand (excluding university level) — issued together with the child’s NON-ED at international schools. Applicants must be the parent listed on the birth certificate, with no age limit, and only price on request financial proof required (vs Retirement’s higher threshold). Importantly, O-Guardian holders cannot work — unlike Smart Visa families that may — but may invest and open bank accounts. We prepare documents alongside the child’s NON-ED — securing the whole family in parallel.

Why a Legal Team for Dependent Visas

Dependent Visa filings are complex due to cross-document coordination between the principal and family members — some documents must be issued abroad and embassy-legalized. Common issues: (1) foreign marriage certificate not recorded as Kor.Ror.22 — spouse Dependent rejected; (2) child’s birth certificate omits father’s name — child loses dependent rights; (3) principal salary below threshold — NON-B Dependent rejected. We pre-review all sides, resolve issues before filing, and submit family visas together at embassy or Immigration — outcomes decided by the receiving authority for our reviewed cases.

12-Step Process

Clear, transparent and traceable workflow

Initial case assessment — identify principal & members

Identify principal visa (NON-B/O/Smart/LTR) and family members applying.

Sign family-package engagement

Bilingual agreement — discount for 3+ family members.

Verify status of spouse, children, parents

Verify Kor.Ror.22, birth certificates, adoption papers — resolve in advance.

Prepare principal-holder documents

Passport, principal visa, employment contract, 6-month payslips or bank statement.

Prepare family-member documents

Passports, photos, relationship documents, medical certificate.

Translate & legalize foreign documents

Translate marriage cert, birth cert, adoption papers to Thai with certification.

Record Kor.Ror.22 at Thai District Office

For foreign marriage certificates — mandatory before applying for Dependent.

File at Thai embassy or Immigration

Filed based on family-member location — 5-15 days processing.

Medical check in Thailand

After arrival — examination per Ministry of Public Health.

90-day reporting at Immigration

Every 90 days — family members report together with the principal.

Annual extension together

Renew with principal — saving family time and cost.

Status change (e.g., child turns 20)

Change to NON-ED, NON-B, or depart — notify 60 days in advance.

In-Depth Guide

Dependent Visa for Adopted Children — Specific Conditions

Adopted children must be certified under Thai law — for in-country adoption, through Juvenile and Family Court with court orders confirming adoptive parentage. For overseas adoption, foreign court orders must be translated and legalized at embassy/Department of Consular Affairs + registered with the Department of Social Development and Welfare (DSDW). Adopted children must be under 20 at the Dependent Visa filing date and in the principal’s legal custody. We coordinate every step — including court order translation and DSDW registration — reducing time from 4-6 months to 2-3 months.

Dependent Visa for Parents — New LTR and Smart Visa Rules

Historically, parental Dependent visas were difficult — requiring case-by-case Immigration review and proof that the principal is the primary supporter. Since 2023, LTR and Smart Visa allow direct parent Dependent applications — conditions: parents listed on the principal’s birth certificate, no age limit, no dependency proof. Standard NON-B and NON-O still require dependency proof — using financial statements and medical care affidavits. We prepare these proofs with attorney- and embassy-certified Affidavits — boosting approval rates.

Status Change When Child Turns 20

Children’s Dependent Visa terminates immediately on their 20th birthday — no grace period. To remain, status must change to another visa 60 days before the birthday. Options: (1) NON-ED if studying; (2) NON-B + Work Permit if employed; (3) Smart Visa Talent with endorsement; (4) leave and re-apply. We begin planning the change at age 18 — ensuring smooth transition without departure and re-entry.

Managing Family When Principal Changes Job

When a NON-B + Work Permit principal changes employers or is terminated — the family’s Dependent Visa is canceled simultaneously under Section 35 of the Immigration Act. The family must do one of three things: (1) principal secures new employer within 15 days and re-files Dependent immediately; (2) convert to Tourist Visa and re-plan; (3) entire family departs together. We offer a Continuity Service — changing employer and re-filing Dependent in parallel — minimizing the risk of family departure.

Dependent Visa (Spouse / Child / Parent) — Family Migration Compliance

Categories of Dependent Visa and Their Distinct Requirements

The Thai Immigration Bureau issues three primary dependent-visa categories under different evidence schedules: Non-Immigrant O for the spouse of a Thai national or the spouse of a foreign work-permit holder, Non-Immigrant O for parents of a Thai national or of a foreign work-permit holder, and Non-Immigrant O for children of either party. The financial thresholds and evidence requirements differ markedly: spouse-of-Thai requires demonstration of the Thai spouse's ongoing residence in Thailand plus the foreign spouse's 400,000 THB seasoned bank balance or 40,000 THB monthly income; parent-of-Thai requires the Thai child's annual income certificate plus household registration showing the parent at the same address; child-of-Thai requires a translated and legalised foreign birth certificate showing the Thai parent's name. Spouse and child of foreign work-permit holders use a separate "follow primary visa holder" track tied to the primary visa's validity dates.

Marriage Authentication and Anti-Sham Reviews

Since the 2019 Police Order updates, all spouse-of-Thai dependent visa extensions are subject to an in-person interview at the local Immigration office, with both spouses present. The interview is informal but recorded, and officers ask about household routine, family relationships, and shared financial arrangements. Photographs of the wedding ceremony, photographs from across the marriage showing both spouses together at recognisable Thai locations, joint bank account statements, and joint property utility bills are evidence the officer expects to see in the file even though they are not on the official document checklist. Couples who married overseas must additionally present the Kor Ror 22 form confirming the marriage has been registered with the Thai Ministry of Foreign Affairs — a marriage certificate from California or Las Vegas alone is not sufficient evidence of marriage for Thai immigration purposes until the Kor Ror 22 has been issued.

Financial Evidence Without a Salary

Many foreign spouses of Thai nationals do not work in Thailand and rely on overseas pension or investment income, which presents an evidence-formatting challenge: Immigration's standard 40,000 THB monthly income letter is designed for locally-employed foreigners, not retirees or remote investors. The accepted alternative is to demonstrate the price on request seasoned bank balance instead, but two issues regularly trip up applicants: the balance must originate from overseas transfers (not from cash deposits made in Thailand), and it must be seasoned for two full months before the application date. Funds transferred in batches of price on request to keep below the AMLO automatic-reporting threshold actually trigger more scrutiny than a single large transfer with a clear source explanation, so it is generally cleaner to fund the bank balance with a single SWIFT transfer accompanied by the source-bank statement.

Coordinating Dependent Visas with Primary Visa Renewals

When the dependent visa is tied to a primary work-permit holder, the dependent's extension must be lodged at the same time and at the same Immigration office as the primary visa holder's extension. Many couples discover, often days before the deadline, that the primary holder's file has a problem (an expired work permit, a withdrawn employment letter, a tax-filing gap) and the dependent's extension is therefore frozen. We pre-audit both files together a full month before the joint appointment, identify any inter-dependence between the two files, and resolve issues in the primary holder's file before they cascade into a dependent rejection. For mixed couples where the primary holder is a Thai citizen, we maintain a parallel calendar of the Thai spouse's required documents (income certificates, household registration updates) so neither side falls behind.

Compare Dependent Visa Services

Criteria	Thai Notary Law	DIY	Employer-arranged	Generic Agency
Foreign Kor.Ror.22 recording	✓ Full handling — staff escort to amphoe	✗ Client hunts upcountry	△ Out of scope	△ Extra fee

Step-by-step How-To

1
Verify principal visa-holder status
Review NON-B / NON-O / Smart Visa / LTR + Work Permit + remaining validity of the principal.
2
Prepare relationship documents
Marriage cert (Kor.Ror.2 or 22), child birth certs, translated and certified by MOJ Translator + Apostille if foreign.
3
Compile sponsor financial proofs
6-month Thai bank statement + Letter of Continued Employment + Income Tax PND.91.
4
Lodge at Chaeng Wattana or Thai Embassy abroad
We lodge all family Dependents on the same day — clients wait at home.
5
Collect visas & arrange Re-Entry Permit
Visas issued in 15-30 days + Re-Entry Permits for home-country travel.
6
Plan annual renewal & 18+ transition
Annual extension + transition planning for children turning 18.

FAQ

Frequently Asked Questions

Legal Basis

Lawyers Act B.E. 2528 (1985)มาตรา 27 — Notarial Services Attorney
Notarial Services Attorneys in Thailand must hold a licence from the Lawyers Council of Thailand under the 2003 Notarial Services Regulation.
Read full text →
Hague Apostille Convention 1961HCCH Apostille
Thailand’s Apostille accession (30 June 2026) only enters into force on 28 February 2027 — documents require dual legalisation by MFA Consular Affairs and the destination embassy.
Read full text →

Common Pitfalls

Signature does not match passport
A signature or name that differs from the passport may trigger a request for more evidence. Check the recipient’s rule and bring original identification when signing before an officer or attorney is required.
Translation by an unregistered translator
Translator requirements depend on the receiving authority. Some accept a translator declaration; others specify a sworn or registered translator. Check the current list before translation starts.
Missing final embassy authentication
Before 28 February 2027, many Thai documents used abroad still need destination-embassy legalisation after the Department of Consular Affairs. The exact order depends on the document and recipient.

Start your Thailand Dependent Visa — Spouse, Children, and Parents today

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Key Takeaways

Covers spouse and children under age 20
Sponsor financial documents prepared end-to-end

Service Areas — Dependent Visa

Choose a nearby area to see service details, pricing, and our team in your district or BTS/MRT station.

Six Notarial Services Attorneys Licensed by the Lawyers Council of Thailand

Notary License (1/6)

What you need to know

Quick Summary

Understanding Thailand Dependent Visa — Spouse, Children, and Parents

What is a Dependent Visa and Who Qualifies

Differences Across 5 Principal Visa Categories

O-Guardian — Special Case for Parents of Students

Why a Legal Team for Dependent Visas

Clear, transparent and traceable workflow

Initial case assessment — identify principal & members

Sign family-package engagement

Verify status of spouse, children, parents

Prepare principal-holder documents

Prepare family-member documents

Translate & legalize foreign documents

Record Kor.Ror.22 at Thai District Office

File at Thai embassy or Immigration

Medical check in Thailand

90-day reporting at Immigration

Annual extension together

Status change (e.g., child turns 20)

In-Depth Guide

Dependent Visa for Adopted Children — Specific Conditions

Dependent Visa for Parents — New LTR and Smart Visa Rules

Status Change When Child Turns 20

Managing Family When Principal Changes Job

Dependent Visa (Spouse / Child / Parent) — Family Migration Compliance

Categories of Dependent Visa and Their Distinct Requirements

Marriage Authentication and Anti-Sham Reviews

Financial Evidence Without a Salary

Coordinating Dependent Visas with Primary Visa Renewals

Compare Dependent Visa Services

Step-by-step How-To

Verify principal visa-holder status

Prepare relationship documents

Compile sponsor financial proofs

Lodge at Chaeng Wattana or Thai Embassy abroad

Collect visas & arrange Re-Entry Permit

Plan annual renewal & 18+ transition

All 50 Bangkok Districts & 77 Thai Provinces

Top Bangkok Districts

Top Provinces

Frequently Asked Questions

Who is eligible for Dependent Visa?

Can unmarried partners apply for Dependent?

Can a foreign marriage certificate be used directly?

Government fees for Dependent?

Can Dependent holders work in Thailand?

Can a 19-year-old child extend Dependent?

How many years can O-Guardian be held?

If principal divorces, does Dependent end?

Can a 5-member family apply together?

Can upcountry clients use the service?

Legal Basis

Common Pitfalls

Related Services

Thailand Visa (Overview)

NON-O Marriage/Family

NON-B Business Visa

Education Visa NON-ED

Marriage Registration in Thailand

Marriage Abroad

Start your Thailand Dependent Visa — Spouse, Children, and Parents today

Key Takeaways

Service Areas — Dependent Visa

Bangkok Districts

Provinces

BTS/MRT Stations

Six Notarial Services Attorneys Licensed by the Lawyers Council of Thailand

Notary License (1/6)

What you need to know

Quick Summary

Understanding Thailand Dependent Visa — Spouse, Children, and Parents

What is a Dependent Visa and Who Qualifies

Differences Across 5 Principal Visa Categories

O-Guardian — Special Case for Parents of Students

Why a Legal Team for Dependent Visas

Clear, transparent and traceable workflow

Initial case assessment — identify principal & members