Can My Income Affidavit Be Done at Home?
No. the income affidavit itself must be issued by your embassy or consulate in Thailand, not by authorities in your home country. Documents you prepare abroad are supporting evidence only. They cannot replace the embassy affidavit that Thai immigration and most embassies require for retirement and marriage visa applications.
At Thai Visa Centre in Bangkok, we help retirees and marriage visa applicants every week who arrive with perfect bank statements from London or Sydney, but no Bangkok embassy letter, and a rejected extension as a result. Here is how the affidavit system works and what you can prepare before you fly.
Last reviewed June 2026. Verify before travel.
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Overview
No. the income affidavit itself must be issued by your embassy or consulate in Thailand, not by authorities in your home country. Documents you prepare abroad are supporting evidence only. They cannot replace the embassy affidavit that Thai immigration and most embassies require for retirement and marriage visa applications.
Browse all visa types or read our Thailand lifestyle guide for long-stay planning.
Key point: No. the income affidavit itself must be issued by your embassy or consulate in Thailand, not by authorities in your home country. Documents you prepare abroad are supporting evidence only. They cannot replace the embass
Where to obtain the affidavit in Thailand
Most Western embassies in Bangkok issue income affidavits by appointment:
|------------------------|----------------------|
Requirements, fees, and appointment systems change without notice. Contact your embassy directly or check their official website before you book flights.
| Nationality (examples) | Typical issuing post |
|---|---|
| USA | U.S. Embassy Bangkok |
| UK | British Embassy Bangkok |
| Australia | Australian Embassy Bangkok |
| Canada, EU countries | Respective embassy/consulate in Bangkok |
What is an income affidavit?
An income affidavit (sometimes called a letter of income verification) is a standardised document issued by your country’s embassy or consulate in Thailand. It certifies that you meet a stated monthly income threshold, typically:
The affidavit is sworn or certified at the embassy, often with a notarial fee. Thai immigration treats it as primary proof of pension or overseas income when you extend your stay.
Retirement guide: tvc.co.th/visas/thailand-retirement-visa
Marriage guide: tvc.co.th/visas/thailand-marriage-visa
- 65,000 THB/month for retirement visa (O-A / O retirement routes)
- 40,000 THB/month for marriage visa (Non-Immigrant O based on marriage)
Why it cannot be done in your home country
Thai immigration wants a document issued in Thailand under the embassy’s seal, because:
You can and should gather supporting documents at home before travel:
Bring these to your Bangkok embassy appointment. The consul uses them to decide whether to issue the affidavit, but they do not substitute for it.
- The embassy verifies your identity against your passport presented in Bangkok
- Standard wording matches what immigration officers expect on extension day
- Home-country bank letters, accountant letters, or notarised statements abroad lack the embassy’s consular authentication that immigration trusts
- Pension award letters
- 3–6 months of bank statements showing regular deposits
- Tax returns or employment termination letters (retirees)
- Proof of remittance into Thailand where applicable
How the affidavit fits the visa process
Typical retirement or marriage visa pathway using income proof:
Many clients use the 800,000 THB bank deposit route instead to avoid monthly income verification, we help with timing: retirement bank services.
- Gather supporting financial documents (home or Thailand)
- Visit embassy in Bangkok → receive income affidavit
- Apply for Non-Immigrant O at Thai embassy abroad or use affidavit at immigration extension in Thailand (route-dependent)
- Submit affidavit + bank statements + TM30 + marriage certificate (if applicable) at extension
How the affidavit fits the visa process
Work through these named steps in order where they apply to your situation. Skipping document legalisation, TM30 registration, or re-entry permits is a common reason applications fail at immigration.
Step 1
Gather supporting financial documents (home or Thailand)
Visit embassy in Bangkok → receive income affidavit
Visit embassy in Bangkok → receive income affidavit
Apply for Non
Apply for Non-Immigrant O at Thai embassy abroad or use affidavit at immigration extension in Thailand (route-dependent)
Step 4
Submit affidavit + bank statements + TM30 + marriage certificate (if applicable) at extension
For 90-day reporting help, see 90day.in.th. For entry requirements, see Thailand entry requirements.
Before you travel or file
Use this checklist alongside the steps above. Most rejections we see at Bangkok immigration come from missing one item on this list rather than from the main visa rule itself.
- Download the current checklist from thaievisa.go.th for your nationality and visa category. Lists change without wide announcement.
- Complete TDAC within 72 hours before every flight, train, or land crossing into Thailand.
- Carry printed copies of embassy letters, insurance certificates, and financial proof, not phone screenshots alone.
- Confirm your passport has enough blank pages and validity for the full intended stay plus buffer days.
- Book embassy or district office appointments before you fly if your nationality requires in-country processing in Bangkok.
- Set calendar reminders for 90-day reporting, extension expiry, and re-entry permit dates before you leave on holiday.
Who this guide is for
This FAQ is written for foreign nationals planning travel, registration, or long-stay compliance in Thailand. The answer may differ if you hold a Thai passport, diplomatic status, or a work permit tied to a BOI-promoted company.
Short-stay tourists
Verify visa exemption or VOA eligibility, complete TDAC, and carry travel insurance even when not mandatory. Hospitals expect payment or cover before major treatment.
Long-stay visa holders
Track TM30, 90-day reporting, annual extensions, and re-entry permits. Privilege and LTR tiers may simplify some reporting but never remove TDAC or overstay rules.
Couples and families
Marriage registration at a district office is separate from ceremonies and from marriage visa applications afterward. Plan embassy documents and MFA legalisation before you book wedding venues.
Workers and employers
A B visa alone does not authorise work. Every employer change requires a new work permit. Remote work for foreign employers on tourist stamps remains high risk at immigration.
Compliance reminders
Thailand is welcoming when your paperwork matches your behaviour. These habits apply across most visa categories, whether you are visiting for two weeks or renewing a one-year marriage extension.
- Complete TDAC within 72 hours of every landing, including returns after holidays abroad.
- Confirm your landlord or hotel files TM30 address notification within 24 hours of check-in.
- File 90-day TM47 reports when you remain in Thailand 90 consecutive days without departing.
- Obtain a re-entry permit before leaving if you hold a single-entry visa with a valid extension.
- Match your visa category to your activity. Tourism stamps do not authorise employment in Thailand.
Common mistakes
These wrong assumptions appear frequently at our Bangkok office. Correct them before you book non-refundable flights or sign a lease.
- Notarising an income letter at home and assuming immigration will accept it, they will not as a replacement affidavit
- Visiting immigration without an embassy appointment, affidavits expire; check validity period
- Showing only one month of pension deposits when embassy asks for 3–6 months history
- Assuming your Thai spouse’s income satisfies your marriage visa requirement, the foreign spouse’s income must be proven separately in most cases
Frequently asked questions
General answers for planning purposes. Confirm specifics with official sources or our team before you travel.
Q:Can I use embassy income affidavit from Chiang Mai or Phuket?
A:Most affidavits are issued only at embassy offices in Bangkok (or occasionally at consulates). Plan a Bangkok trip or use the bank-deposit financial route if travel is difficult.
Q:Does the affidavit work for initial embassy visa application abroad?
A:Some Thai embassies abroad accept home-country pension letters for the first visa. Once extending inside Thailand, the Bangkok embassy affidavit is standard for the income route.
Q:How long is the affidavit valid?
A:Embassies typically stamp a validity period (often 6 months). Immigration may require a fresh affidavit at each annual extension, confirm current practice.
Q:Can I combine pension with rental income?
A:Yes, if you can document both streams, the embassy may certify combined income on one affidavit. Bring full evidence to the appointment.
Q:When was this guide last reviewed?
A:June 2026. Immigration and embassy rules change without notice. Verify on official sources before you travel, extend, or register.
Q:Can Thai Visa Centre handle this for me?
A:Our Bangkok team prepares embassy documents, files TM47 90-day reports, coordinates district office marriage registration, and manages extension season paperwork. Book an appointment or start live chat for a document review.
Q:Does this FAQ replace legal or immigration advice?
A:No. This page is general orientation for planning. Your nationality, visa history, finances, and employer structure may change the correct answer. Confirm specifics before you book non-refundable flights or sign a lease.
Official references
Official sources verified June 2026.