Statute of Limitations for Oral Contract in Thailand

7 min read

Published March 22, 2026 • By DocketMath Team

Overview

In Thailand, a claim based on an oral contract (sometimes described as a contract formed by spoken agreement rather than a signed document) generally falls under the rules governing civil obligations and contractual claims. The practical challenge is that “oral contract” disputes often involve proof issues (what was agreed, when it was agreed, and whether performance or payment occurred). Alongside that evidence challenge sits a separate, time-based issue: the statute of limitations—the deadline after which a court will bar the claim.

DocketMath’s statute-of-limitations calculator helps you move from dates (e.g., the contract breach date) to a limitation outcome, without requiring you to run a manual timeline. You can also use the calculator to test scenarios—for example, what happens if the breach is argued to have occurred later because of partial performance, installment payments, or communications that mark when payment was due.

Note: This page focuses on Thailand’s general limitation framework for oral contractual claims. It does not replace legal advice, especially where classification disputes arise (for example, whether something is truly a contractual obligation or a tort-like obligation).

Limitation period

General rule for oral contracts (contractual claims)

For contract claims in Thailand—regardless of whether the contract is oral or written—the starting point is typically the date when the right to sue accrues. In common practical terms, that usually means the moment a party can demand performance and the other side fails to perform (e.g., nonpayment after the due date, non-delivery after the agreed deadline, or an anticipatory refusal).

Under Thailand’s Civil and Commercial Code, the limitation periods are set by the legal nature of the obligation, not by the “oral vs. written” label. That means an oral contract claim often uses the contract limitation timeframe rather than a special “oral-only” deadline.

Practical timeline: what to identify first

To apply the limitation rule correctly, you’ll typically need these inputs:

  • Accrual date (start date):
    The date the claimant’s right to sue arises (often breach/repudiation/payment due date).
  • Type of obligation:
    Confirm it’s a contractual claim rather than a claim treated under a different legal category.
  • Any events affecting time:
    Events such as acknowledgment of debt or certain legal steps may affect whether the clock is interrupted or reset.

How the outcome changes with the accrual date

Even when the legal limitation period is fixed, the result changes significantly if the “start date” changes by weeks or months. For example:

  • If breach is pinned to 2023-06-15, the limitation window may close earlier.
  • If you can document that performance was not actually due until 2023-09-01, the clock may start later, potentially keeping the claim within time.

Because oral agreements frequently rely on messages, witness testimony, or payment records, the accrual date can become disputed. DocketMath’s calculator is useful for scenario-testing how different “due” dates affect the deadline.

Quick reference table (what to think about)

StepWhat you determineCommon evidence sourcesWhy it matters
1The accrual/breach dateinvoices, chat logs, witness statements, payment historyControls the start of the limitation period
2The obligation typecontract terms, scope of work, agreed deliverablesDetermines which limitation rule applies
3Whether interruption appliesacknowledgments, written promises, legal actionsMay extend the time available to sue

Key exceptions

Thailand’s limitation framework includes concepts that can change the timeline, mainly by affecting:

  1. When the period starts, and/or
  2. Whether the running period is interrupted by certain events.

Below are key categories that frequently matter in contractual disputes.

1) Acknowledgment or promises affecting the clock

Where a debtor/party acknowledges the obligation or makes a promise to pay or perform, Thai limitation law may treat this as an event that affects the running of time. In practice, this often means:

  • A written acknowledgment (e.g., email admitting the debt)
  • A clear payment plan agreement
  • Correspondence that confirms the obligation and does not merely dispute liability

Oral acknowledgments can matter too, but proving them is often harder. If your situation is document-light, consider how you will establish the acknowledgment and its date.

2) When performance was actually due

For oral contracts, determining “breach” can require reconstructing the parties’ agreed performance schedule. Examples that can change accrual:

  • Delivery/payment was contingent on another condition
  • Work was accepted in stages
  • The contract contemplated installment payments, making each missed installment a separate failure within the broader relationship

3) Classification disputes: contract vs. other obligations

Sometimes a claimant labels a dispute as “contract,” but the legal characterization may differ depending on facts. The limitation period can shift when the claim is analyzed under a different statutory category (e.g., obligations arising from unjust enrichment-like theories or other civil claims).

Warning: The limitation period is tied to the legal category of the obligation. If the dispute is re-characterized, the limitation window you rely on for an “oral contract” can be incorrect.

Statute citation

Thailand’s statute of limitations for civil claims is primarily governed by the Civil and Commercial Code (ประมวลกฎหมายแพ่งและพาณิชย์).

For contractual claims, the general limitation period commonly cited for obligations arising from contracts is ten (10) years under the Civil and Commercial Code’s limitation provisions (commonly referenced in practice as Section 389 for the general contractual limitation of ten years).

Additionally, the Civil and Commercial Code includes provisions addressing how limitation periods run and when they may be interrupted (often referenced alongside Section 389 in practical materials).

  • Civil and Commercial Code (Thailand), Section 389 — general limitation for claims arising from contract (commonly described as 10 years)

Because limitation provisions can be applied with attention to accrual and interruption details, it’s wise to treat Section 389 as the anchor and then verify how the facts you have fit within the statute’s triggering conditions.

Use the calculator

DocketMath’s statute-of-limitations calculator is designed to turn your dates into a limitation deadline.

What you’ll enter

Open the tool here: **/tools/statute-of-limitations

Typically, you’ll provide:

  • Claim type: choose the option corresponding to an oral contract / contractual obligation
  • Accrual date (breach/right-to-sue date): the day you consider the clock starts
  • Optional adjustments (if your interface supports them):
    • events that may interrupt or affect the period (e.g., acknowledged debt date)
    • multiple breach dates (if you’re evaluating installment failures)

How outputs change

Use the calculator to test variations. For example:

  • If you move the accrual date from 2023-06-15 to 2023-09-01, the deadline shifts by about 2.5 months (given the ten-year baseline in common contract claims).
  • If you enter an acknowledgment date that affects interruption, the “expired vs. not expired” outcome can flip even when the breach date is the same.

Practical checklist before you click calculate

Note: DocketMath’s output is only as accurate as your selected accrual date and claim classification. The calculator helps you model deadlines; it doesn’t replace legal analysis of what the facts legally mean.

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