Terms and Conditions

Scope of These Terms

These terms apply to all translation, interpretation, localization, and related language services provided by Bangkok Translation and Interpretation Service (BTIS), operating from Bangkok and Chiang Mai since 2008.

1. By submitting documents or project requests to BTIS, you agree to these terms. Submissions can be made through our online quote form, email, WhatsApp or LINE, LINE, or in person at our offices.
2. These terms cover all services: certified translations, interpretation services, website localization, and MFA legalization.
3. If you do not agree with any provision listed below, do not use our services.
4. BTIS may modify these terms at any time. Changes take effect upon publication on this page. Continued use of our services constitutes acceptance.

Last updated: 2 February 2026.

Payment Terms

Payment conditions for all translation and language service engagements with BTIS.

Standard Payment

1. Payment is due upon delivery unless agreed otherwise in writing.
2. Projects exceeding 10,000 THB may require 50% advance payment.
3. Invoices unpaid within 14 days may incur a late payment fee.
4. BTIS may withhold delivery until outstanding balances are settled.

Accepted Payment Methods

1. Thai bank transfer (all major banks).
2. PayPal.
3. Credit card.
4. Cash (at our Bangkok or Chiang Mai offices).
5. International wire transfer (for large projects).

Client Responsibilities

Translation quality depends on clear communication and complete source material.

Source Material Quality

1. Provide legible, complete source documents. BTIS cannot guarantee accuracy from poor-quality scans, partially visible text, or illegible handwriting.
2. Accepted formats include PDF, Word, Excel, JPG, and PNG.

Accurate Instructions

1. Provide clear instructions: target language, intended use (legal submission, immigration, personal reference), and any terminology preferences.
2. This information helps BTIS assign the right specialist to the project.

Timely Communication

1. When BTIS requests clarification on ambiguous source content, the client should respond promptly.
2. Delayed responses may affect the agreed delivery timeline.

Legal Compliance

1. All materials submitted for translation must be lawfully obtained.
2. The client must hold the legal right to have the documents translated.
3. BTIS accepts no liability for unlawful content submitted by the client.

Quality Guarantee and Certification

Every project follows our multi-step quality process, including rush orders.

Quality Process

1. All translations undergo a mandatory two-person review: one translator produces the initial translation, and a second specialist reviews it for accuracy, consistency, and natural flow.
2. A project manager performs a final check before delivery.
3. BTIS uses native speakers only — translators work into their mother tongue.
4. No machine translation is used for client deliverables. This process has been applied across 20,000+ projects since 2008.

Certified and Notarized Translations

1. Certified translation includes a translator statement, signature, and company seal. This format is prepared for submission to Thai government agencies, immigration, and embassies in Bangkok.
2. BTIS prepares certified translations to the format Thai authorities require. Acceptance remains at the discretion of the receiving authority. If a certified translation is rejected specifically because of a BTIS translation error, the correction policy below applies.
3. Notarized translation adds verification by a Notarial Services Attorney. Required for certain legal and embassy submissions. Available as an add-on service.

Cancellation and Termination

Provisions for project cancellation by either party, including interpretation-specific cancellation fees.

Translation Project Cancellation

1. Cancellation before work begins: full refund of any advance payment.
2. Cancellation after work has started: the client pays for work completed up to the cancellation date.
3. Rush or express projects cancelled after translator assignment may incur a minimum handling fee.

Interpretation Service Cancellation

1. Cancellation 10 or more days before the agreed date: no charge.
2. Cancellation 7 days before the agreed date: 30% of the agreed rate.
3. Cancellation 5 days before the agreed date: 50% of the agreed rate.
4. Cancellation 3 days before the agreed date: 70% of the agreed rate.
5. Cancellation less than 48 hours before the agreed date: 100% of the agreed rate.

Contract Shortening

1. If an interpretation contract is shortened by the client, the client will be charged 50% of the reduced-date rate as compensation.

Overrun and Overtime — On-Site Interpretation

1. Hourly booking: exceeding 20 minutes beyond the booked time will be charged at the full hourly rate.
2. Half-day booking: exceeding 20 minutes beyond the booked time will be charged at the full-day rate.
3. Full-day booking: exceeding 20 minutes beyond the booked time will be charged at 1.5× the hourly rate per additional hour.

BTIS Termination Rights

1. BTIS may decline or discontinue a project if the source material contains illegal content.
2. BTIS may terminate if the client repeatedly fails to respond to clarification requests within a reasonable time.
3. In case of BTIS-initiated termination, any advance payment for uncompleted work will be refunded.

Governing Law and Dispute Resolution

1. These terms and conditions are governed by the laws of the Kingdom of Thailand.
2. Disputes arising from or related to these terms are subject to the exclusive jurisdiction of the courts of Bangkok, Thailand.
3. Before initiating legal proceedings, both parties agree to attempt resolution through good-faith negotiation. If unresolved within 30 days, either party may proceed with formal legal action.
4. BTIS has operated under Thai law since 2008 with zero legal disputes arising from translation errors. Our company profile provides full details about our operations and credentials.