Thundthornthep Yaem-Uthai, Ph.D. | LAS Legal | 3 April 2026 | ภาษาไทย
When multiple debtors owe the same debt, who exactly can the creditor demand payment from? The answer depends on whether the obligation is "joint and several" or "several only" — a distinction with enormous practical consequences for creditors protecting their claims and for debtors understanding the scope of their exposure. SME operators who co-invest, co-borrow from banks, or co-contract must understand this principle thoroughly.
Thai law divides the liability of multiple debtors into two main categories, which have completely different legal effects:
Joint and Several Liability (Solidary Obligation) is the situation where multiple debtors are liable for the same debt, and the creditor has the right to demand full payment from any one debtor or from all debtors simultaneously, under the Thai Civil and Commercial Code (TCCC), Section 291.
Several Liability is the situation where each debtor is liable only for their own share. The creditor cannot demand more than each debtor's individual portion. If there is no agreement or statutory provision to the contrary, Thai law presumes all obligations to be several by default.
The Thai Civil and Commercial Code, Book 2, Title 1, Chapter 4, Sections 290–302, provides a comprehensive framework for obligations with multiple debtors, divided into external rules (debtor–creditor relationship) and internal rules (relationship among joint debtors).
| Section | Key Content | Type |
|---|---|---|
| 290 | Defines solidary obligation (Joint and Several Liability) | External |
| 291 | Creditor may demand full payment from any one debtor or all, until the debt is fully discharged | External — core creditor right |
| 292 | Events that extinguish the obligation for all joint debtors: payment, set-off, deposit, novation | External — extinction |
| 293 | Notice or demand to one joint debtor is effective against all joint debtors | External — notice |
| 294 | Partial payment or assignment of rights does not release remaining joint debtors | External — partial payment |
| 295 | Personal events (e.g., release of one debtor, individual prescription) affect only that debtor, not others | External — personal events |
| 296 | Paying joint debtor is subrogated to creditor's rights and may seek contribution from others pro rata; if one is insolvent, the shortfall is shared among the rest | Internal — contribution |
| 297 | Debtor released by the creditor does not release others from their remaining liability | External + Internal |
| 298 | Partial payment by the creditor reduces the remaining debt for all joint debtors | External |
| 299 | Defences available to joint debtors — each may raise personal defences and common defences available to all | External — defences |
| 300 | Judgment against one joint debtor does not bind others (unless beneficial to them) | External — judgment |
| 301 | Extension of prescription for one joint debtor does not affect others | External — prescription |
| 302 | Provisions on joint debtors apply mutatis mutandis to joint creditors | Joint creditors |
Under TCCC Section 291: "If several persons are bound to perform an obligation in such a manner that each is bound to perform it in full, the obligee may require performance in full from any one or all of the obligors, at his option; but the obligors remain bound until the performance is completed."
The mechanism operates on two levels:
Several liability means each debtor is responsible only for their own share. Thai law does not codify several liability in a single section; instead, it is inferred from the general law of obligations and from TCCC Section 295, which provides that personal events affecting one joint debtor do not affect others.
Key characteristics of several liability:
In practice, business lawyers encounter three formulations that must be distinguished: Joint Obligation, Several Obligation, and Joint and Several Obligation. Under Thai law (TCCC Sections 290–291), "joint obligation" (หนี้ร่วม) encompasses the joint-and-several concept.
| Issue | Joint and Several (Sec. 291) | Several Only | Joint Only |
|---|---|---|---|
| Creditor's right | Demand full amount from any one debtor | Demand only each debtor's share | Must demand from all debtors together |
| Effect of full payment | Obligation extinguished for all (Sec. 292) | Extinguished only for the paying debtor's share | Obligation extinguished for all |
| Effect of insolvency | Creditor may still demand full amount from others | Creditor loses that debtor's share | Creditor must file in insolvency proceedings |
| Contribution right | Yes — pro rata (Sec. 296) | No — each is independently liable for own share | Yes — through civil law contribution |
| Effect of personal events | Affects only that debtor (Sec. 295) | Affects only that debtor | May affect all, depending on the nature of the event |
| Creditor's risk | Very low — can target the debtor with most assets | Higher — must pursue each debtor for their share | Medium — must sue all debtors together |
| How created | By agreement or statute | Default under Thai law | Must be expressly agreed |
| Examples in law | Joint tortfeasors (Sec. 432), director liability (Sec. 1169), partnerships | Individual personal loans | Indivisible obligations |
| Best used when | Creditor needs maximum certainty of recovery | Debtors receive different benefits; clear apportionment desired | The obligation can only be performed by all debtors acting together |
When one joint debtor pays the full amount on behalf of others, the law provides a contribution right (right of recourse) to ensure fairness. TCCC Section 296, paragraph 1 states: "A joint obligor who has performed the obligation is entitled to be subrogated to the rights of the obligee against each of the other joint obligors, to the extent of that obligor's share."
| Scenario | Contribution Rule | Numerical Example |
|---|---|---|
| No special agreement | Equal shares (Sec. 296, para. 1) | Debt THB 300,000 / 3 persons = THB 100,000 each |
| Agreed proportion | Per agreed ratio | If A:B:C = 50:30:20, then contribution follows ratio |
| One debtor insolvent | Shortfall shared among remaining debtors (Sec. 296, para. 2) | If C is insolvent, C's shortfall of THB 100,000 is split equally between A and B |
| Debtor had no share in the debt | Not liable for contribution | Guarantor who became joint debtor by operation of law |
Under TCCC Section 295, events affecting one joint debtor personally do not affect the other joint debtors, unless the law provides otherwise. This is known as the "principle of independence" (หลักเอกเทศ).
| Personal Event | Effect on That Debtor | Effect on Other Joint Debtors |
|---|---|---|
| Creditor releases that debtor | Released from personal liability | No effect — others still liable for their shares |
| Prescription expires for that debtor alone | May raise prescription as a defence | No effect — others may still be sued |
| Debtor dies | Liability passes to the estate proportionately | No effect on other joint debtors |
| One debtor pays in full | Released — has contribution right against others | Obligation extinguished for all (Sec. 292) |
| One debtor defaults | Default interest runs against that debtor | If all must perform simultaneously, all are in default |
Under TCCC Section 1025, partners in a general partnership are jointly and unlimitedly liable for all debts of the partnership. A creditor may demand full payment from any one partner, regardless of that partner's actual ownership share in the partnership.
Three directors co-guarantee a THB 5,000,000 corporate credit facility without specifying individual shares. If the guarantee is structured as joint and several liability, the bank may demand THB 5,000,000 from any one director. The paying director then has a contribution right against the others under TCCC Section 296.
Company A and Company B jointly undertake a construction project. If the contract makes A and B jointly and severally liable, the employer may claim full damages from either A or B without having to sue both simultaneously — considerably simplifying enforcement.
In share or asset purchase agreements (SPA/APA), multiple sellers are typically made jointly and severally liable for representations and warranties. This allows the buyer to recover full indemnification from whichever seller has sufficient assets, without chasing every seller at once.
TCCC Section 432 provides: "If several persons have committed a tortious act jointly, they are all jointly liable to make compensation for the damage thereby caused. This provision applies also where it is impossible to determine which of several persons has caused the damage."
Three key principles of Section 432:
| Issue | Joint Tortfeasors — Sec. 432 | Contractual Joint Debtors — Sec. 291 |
|---|---|---|
| Source | Tortious act | Contract or statute |
| Agreement required? | No — arises automatically by law | Yes — must be expressly stated in the contract or provided by statute |
| Scope of liability | Full damages, including cases where causation is uncertain | Full debt amount as specified in the contract |
| Defences | Personal defences available (Sec. 299) | Personal defences available (Sec. 299) |
| Prescription | 1 year from knowledge of tortfeasor, or 10 years from the act (Sec. 448) | Depends on the type of contract obligation |
When a joint debtor pays the full debt on behalf of others, the law grants a right of subrogation to the paying debtor under TCCC Section 296, paragraph 1: "A joint obligor who has performed the obligation is entitled to be subrogated to the rights of the obligee against each of the other joint obligors, to the extent of that obligor's share."
Subrogation operates in two stages:
| Scenario | Result |
|---|---|
| A, B, C jointly borrow THB 600,000 (1:1:1). A pays in full. | A may claim contribution of THB 200,000 each from B and C. A also inherits the creditor's mortgage over B's and C's assets. |
| A, B jointly borrow THB 1,000,000 (A:B = 60:40). A pays in full. | A may claim contribution of THB 400,000 (B's share) from B. |
| A, B, C are joint tortfeasors. Damages = THB 900,000. B pays in full. | B may claim contribution of THB 300,000 each from A and C (Sec. 432 + Sec. 296). |
| A, B, C jointly borrow. C is insolvent. B pays B's share plus C's shortfall (THB 100,000). | B may claim half of C's shortfall = THB 50,000 from A (Sec. 296, para. 2). |
Three levels must be addressed when drafting a contract with multiple debtors: defining the type of liability, specifying internal proportions, and establishing the contribution mechanism.
| Objective | Recommended Contract Language | Notes |
|---|---|---|
| Create Joint and Several Liability | "Each Obligor shall be jointly and severally liable for all obligations, indebtedness, and liabilities hereunder, including principal, interest, penalties, and all related costs." | Must be express; avoid ambiguity; use both Thai and English |
| Specify internal proportions | "As between the Obligors themselves, each party shall bear liability in the proportions set out in Schedule [A] attached hereto." | Critical for internal contribution — must attach the proportion schedule |
| Create Several Liability | "Each Obligor shall be liable only for their own respective share as set out in the Schedule. The Creditor shall have no right to demand payment from any Obligor in excess of that Obligor's specified share." | Must specify shares clearly; otherwise, court may interpret as joint and several |
| Individual liability cap | "The maximum liability of each Obligor to the Creditor shall not exceed THB [___], regardless of the total amount of the debt." | Common in M&A / SPA — sets the R&W liability cap |
| Contribution clause | "Any Obligor who pays more than their proportionate share shall have the right to seek contribution from the other Obligors for the excess amount within [___] days from the date of payment." | Set a contribution notice period to prevent future disputes |
| Insolvency of one debtor | "If any Obligor is placed under receivership or adjudicated bankrupt, their unpaid share shall be borne by the remaining Obligors in proportion to their respective shares." | Mirrors TCCC Sec. 296, para. 2 — advisable to state expressly |
LAS applies the Eliminate → Distribute → Mitigate framework to joint liability risk analysis:
| Level | Strategy | How to Apply |
|---|---|---|
| 🔴 Eliminate | Avoid joint debtor status entirely | Convert to limited company, use an SPV to absorb risk, separate contracts per individual |
| 🟡 Distribute | Accept joint debtor status but define proportions clearly | Specify proportions in the contract, set individual caps, purchase R&W Insurance |
| 🟢 Mitigate | Reduce impact when payment is demanded | Prepare subrogation rights in advance, define contribution procedure, set up an Escrow reserve |
The following Supreme Court judgments establish key legal principles on joint and several liability that business lawyers and SMEs should know. All are sourced from actual cases decided by Thailand's Supreme Court.
Krung Thai Bank sought to have a partnership and its guarantors adjudicated bankrupt, even though some guarantors had made partial payments. The Court held that the creditor retained the right to sue any remaining joint debtor for the balance.
Key Principle: Under Section 291, the creditor may choose to sue any joint debtor at any time without first exhausting the assets of the other debtors, and may immediately petition for bankruptcy once the judgment debt meets the statutory threshold.
A construction worker caused a pile to fall and damage the plaintiff's property. The plaintiff sued only the employer (not the employee). The Supreme Court held the employer liable.
Key Principle: An employer and employee are joint debtors under Sections 425 + 291. The creditor may sue either one; an employer who pays the damages has a right of recourse against the employee under Section 426.
Several guarantors who had accepted liability as joint debtors under Section 682 para. 2 argued that the release of one guarantor by the creditor discharged all of them entirely.
Key Principle: Under Section 293, a release granted to one joint debtor in their personal capacity benefits the others only to the extent of that debtor's released share. The remaining joint debtors are still liable for the balance (in this case, THB 13,851,790.57).
One co-guarantor made a partial payment, interrupting the prescription period running against them. The issue was whether that interruption affected the other co-guarantors.
Key Principle: Under Section 295, prescription periods are personal to each joint debtor and do not affect others. The plaintiff's claim against the defendant exceeded 10 years — the claim was dismissed as time-barred.
| Judgment | Core Issue | Key Sections | Principle |
|---|---|---|---|
| 1091/2519 | Creditor filing bankruptcy against joint debtors | Sec. 291, 293 | May sue any one debtor immediately |
| 5444/2537 | Employer–employee in tort | Sec. 291, 425, 426 | Employer may claim recourse from employee |
| 12384/2558 | Release of one joint debtor reduces only their share | Sec. 229, 293, 296 | Others still liable for the balance |
| 6403/2561 | Prescription of joint debtors | Sec. 295 | Prescription is personal to each debtor |
Mr. K, Mr. L, and Mr. M jointly borrow THB 6,000,000 as joint debtors under Section 291. Mr. K subsequently goes bankrupt. Outstanding balance: THB 4,200,000.
| Issue | Legal Outcome |
|---|---|
| Bank demands payment from Mr. L or Mr. M | May demand full THB 4,200,000 immediately from either — Section 291 |
| Mr. L pays the entire balance | Mr. L may seek contribution of 1/3 (THB 1,400,000) from Mr. M — Sections 229, 296 |
| Mr. K's insolvent share | Mr. L files as a creditor in Mr. K's bankruptcy estate for Mr. K's portion |
Registered general partnership "ABC Trading" (3 partners) borrows THB 5,000,000. It is unable to repay.
| Partnership Type | Partner Liability |
|---|---|
| General Partnership (Sec. 1025–1045) | All partners — unlimited joint liability |
| Registered General Partnership | Unlimited joint liability; creditor must exhaust partnership assets first (Sec. 1051, 1070) |
| Limited Partnership | General partner — full liability; limited partner — liable only up to capital contribution (Sec. 1077) |
Company XYZ borrows THB 10,000,000. Mr. P and Mr. Q guarantee the loan and expressly accept liability as joint debtors under TCCC Section 682, paragraph 2.
| Scenario | Legal Outcome |
|---|---|
| Bank sues only Mr. P | Bank may sue immediately without first demanding payment from Company XYZ — because Mr. P is a joint debtor, not a mere guarantor |
| Bank releases part of Mr. Q's liability | Mr. P benefits only to the extent of Mr. Q's released share; Mr. P remains liable for the balance — Section 293 |
| Mr. P pays in full | Mr. P may recover the full amount from Company XYZ (Section 693) and claim half from Mr. Q (Sections 229, 296) |
| # | Checkpoint | Risk if Skipped |
|---|---|---|
| 1 | Verify the liability type in the contract — does it say Joint / Several / Joint and Several? | 🔴 Very High |
| 2 | Assess the financial standing of every joint debtor — review financial statements, credit history, pending litigation | 🔴 Very High |
| 3 | Check for an individual liability cap — ensure the contract limits principal + interest + penalties per debtor | 🟡 Medium |
| 4 | Read the partial payment terms — Section 292: payment by any one debtor reduces the balance for all | 🟢 Low if read carefully |
| 5 | Check the release conditions — personal release vs full release (Section 293) | 🟡 Medium |
| 6 | Check prescription periods — Section 193/30 (10 years) may differ for each joint debtor | 🟡 Medium |
| 7 | Plan contribution rights in advance — draft a Contribution Agreement specifying proportions | 🟡 Medium |
| 8 | Review collateral provisions — if the mortgage proceeds are insufficient, can the creditor enforce against other assets? | 🔴 High |
| 9 | Consult a lawyer before signing — review conditions, exceptions, and future liability exposure | 🟡 Medium |
| 10 | Prepare an Indemnity Agreement — a contribution agreement among joint debtors specifying shares and procedures | 🟡 Medium |
Joint and several liability gives creditors maximum protection: the right to demand full payment from any one debtor without first proving that the others are unable to pay. Several liability, by contrast, limits each debtor to their own share. Understanding this distinction is fundamental to structuring any multi-party transaction.
For SMEs who co-invest or co-borrow, understanding that they are "joint and several debtors" allows proper financial planning and avoids shock when a creditor demands payment of the entire debt. Before signing any contract with multiple debtors, always consult a lawyer to assess the scope of liability and put in place a fair contribution mechanism.
Disclaimer: This article is prepared for academic and general informational purposes only. It does not constitute specific legal advice. Readers should consult a qualified legal advisor before taking any action.