When a sole proprietorship “becomes” a corporation in the Philippines, the most important thing to understand is this: the contracts do not automatically move to the corporation just because the business owner registered a new company with the SEC. In legal terms, the old sole proprietorship and the new corporation are treated differently. The sole proprietorship is essentially the owner doing business under a trade name, while the corporation is a separate juridical person. This affects leases, supplier contracts, customer agreements, loans, employment arrangements, permits, invoices, receivables, and even pending disputes.

For many small business owners, this comes up during growth. A person starts as “Juan Dela Cruz doing business as ABC Trading,” then later registers “ABC Trading Corporation” or an One Person Corporation (OPC) with the Securities and Exchange Commission (SEC). Customers may still know the business by the same brand. Employees may report to the same store. The bank account, receipts, and contracts, however, need careful handling because the law does not treat the change as automatic.

The short answer: contracts usually stay with the sole proprietor unless properly transferred

A contract signed by a sole proprietor generally remains the contract of the individual owner, even if the business later operates through a corporation.

For example:

Maria signed a lease in 2023 as “Maria Santos doing business under the name MS Café.” In 2026, she registered “MS Café OPC.” Unless the landlord agrees to transfer, assign, or novate the lease, the tenant under the original lease is still Maria, not the OPC.

This matters because:

The landlord may still collect unpaid rent from Maria personally.
The corporation may have no legal right to occupy the premises unless accepted by the landlord.
The BIR and LGU may require new or amended registration documents.
Customers or suppliers may question why invoices are now issued by a different legal entity.
Banks and lenders may treat the corporation as a new borrower.

Under Article 1159 of the Civil Code, obligations arising from contracts have the force of law between the parties and must be complied with in good faith. Article 1311 also provides that contracts generally take effect only between the parties, their assigns, and heirs, except where the rights or obligations are not transmissible by nature, stipulation, or law. (Lawphil)

Sole proprietorship vs. corporation under Philippine law

A sole proprietorship is not separate from the owner

A sole proprietorship has no legal personality separate from its owner. The Supreme Court has stated this clearly: a sole proprietorship does not possess a juridical personality separate and distinct from the personality of the owner of the enterprise. (Lawphil)

This means that when a sole proprietor signs a contract, the real contracting party is usually the person, not the business name.

So if the contract says:

“ABC Trading, represented by Juan Dela Cruz”

and ABC Trading is only a DTI-registered sole proprietorship, the obligation is generally Juan Dela Cruz’s personal obligation.

A DTI business name registration helps identify the trade name used by the sole proprietor, but it does not create a separate legal person.

A corporation has a separate legal personality

A corporation is different. Under the Civil Code, corporations granted juridical personality are separate and distinct from their shareholders, partners, or members, and juridical persons may own property, incur obligations, and sue or be sued. (Lawphil)

Under Republic Act No. 11232, or the Revised Corporation Code of the Philippines, a private corporation begins its corporate existence and juridical personality only from the date the SEC issues the certificate of incorporation. (Supreme Court E-Library)

That is why the timing matters. A contract signed before SEC incorporation cannot automatically be treated as a corporate contract unless the corporation later adopts it and the other party accepts that arrangement.

Why “conversion” is not automatic in the Philippines

Many business owners use the phrase “convert my sole proprietorship into a corporation.” In everyday language, that makes sense. Legally, however, the usual process is not a true conversion.

What normally happens is:

The owner registers a new corporation or OPC with the SEC.
The sole proprietorship transfers assets, business operations, or contracts to the corporation.
The owner updates or closes DTI, BIR, LGU, and other registrations.
Contract counterparties sign assignments, amendments, or novation agreements where needed.

This is different from a statutory merger or consolidation. Under the Revised Corporation Code, merger or consolidation applies to corporations, and the surviving or consolidated corporation receives rights and liabilities through the approved merger process. (Supreme Court E-Library)

A sole proprietorship is not a corporation, so it does not merge into a corporation in the same automatic way.

The key legal tools: assignment, assumption, and novation

When moving contracts from a sole proprietorship to a corporation, three concepts usually appear.

1. Assignment of rights

An assignment transfers a right from one person to another.

Example:

A customer owes the sole proprietor ₱200,000. The sole proprietor assigns that receivable to the new corporation.

Under Article 1624 of the Civil Code, assignment of credits and other incorporeal rights is perfected according to the rules on sale. Article 1625 adds that an assignment has no effect against third persons unless it appears in a public instrument or is recorded in the Registry of Property if real property is involved. Article 1626 protects a debtor who pays the original creditor before learning of the assignment. (Lawphil)

In practical terms, this means the debtor should be notified in writing that payment must now be made to the corporation.

2. Assumption of obligations

An assumption means the corporation agrees to pay or perform the sole proprietor’s obligations.

Example:

The corporation agrees to take over unpaid supplier invoices of the sole proprietorship.

But the supplier is not automatically forced to accept the corporation as the new debtor. The supplier may still hold the sole proprietor liable unless the supplier agrees to release the sole proprietor.

3. Novation

Novation is the replacement of an old obligation with a new one. It may change the object or principal terms, substitute the debtor, or subrogate a third person in the creditor’s rights.

Articles 1291 to 1293 of the Civil Code are important here. Novation may substitute the debtor, but when a new debtor replaces the old one, the creditor’s consent is required. Article 1292 also says that extinguishing the old obligation must be declared in unequivocal terms, or the old and new obligations must be incompatible on every point. (Lawphil)

In plain English: if you want the corporation to replace the sole proprietor as the party liable under the contract, get the other party’s clear written consent.

What happens to common types of contracts?

Type of contract	Does it automatically transfer to the corporation?	Practical treatment
Office or store lease	Usually no	Ask landlord to sign an amendment, assignment, or new lease
Supplier contract	Usually no	Notify supplier and obtain written consent if liabilities are being transferred
Customer contract	Depends on terms	Check anti-assignment clauses and data/privacy obligations
Bank loan	No	Bank approval is usually required; personal guaranty may remain
Employment contracts	Not automatically in a simple asset transfer	Handle employee continuity, separation, or absorption carefully
Franchise agreement	Usually no	Franchisor consent is usually required
Government permits	Usually no	Apply for amendment, new permit, or transfer if allowed
Receivables	Can often be assigned	Notify debtors and document the assignment
Intellectual property	Not automatic	Execute IP assignment or license; update IPOPHL records if registered

Step-by-step guide to transferring contracts properly

1. Make a contract inventory

List every active contract of the sole proprietorship, including:

Leases
Supplier agreements
Purchase orders
Customer contracts
Service agreements
Loans and credit lines
Franchise or distributorship agreements
Employment contracts
Insurance policies
Software subscriptions
Equipment leases
Government permits and accreditations

For each contract, identify:

Who signed it
Exact legal name of the contracting party
Contract term and renewal date
Assignment clause
Change-of-control clause
Required consent
Outstanding payables or receivables
Security deposits, guarantees, or collateral
Penalties for unauthorized transfer

2. Check if the contract prohibits assignment

Many commercial contracts say:

“Neither party may assign this agreement without the prior written consent of the other party.”

If this clause exists, do not simply start issuing invoices through the corporation and assume everything is fine. Ask for consent.

For leases, landlords often care because the financial risk changes. A sole proprietor may have personally owned assets. A new corporation may have limited capital. The landlord may require:

A new lease
A board resolution from the corporation
Updated post-dated checks
A personal guaranty from the former sole proprietor
Additional security deposit
Updated mayor’s permit and BIR registration

3. Decide whether you need assignment or novation

Use this simple guide:

Situation	Usually appropriate document
Only rights are transferred, such as receivables	Deed of Assignment
Corporation will perform future services, but owner remains liable for old obligations	Assignment and Assumption Agreement
Corporation fully replaces the sole proprietor and the other party releases the owner	Novation Agreement or Amendment with express release
Contract terms are changing significantly	Amended and Restated Agreement
Counterparty prefers a clean start	New contract

The safest language for novation usually states that the counterparty accepts the corporation as the new contracting party and releases the sole proprietor from obligations arising after a stated effective date, while clearly identifying whether pre-transfer liabilities remain with the owner or are assumed by the corporation.

4. Get corporate authority

Once the SEC issues the certificate of incorporation, the corporation should authorize the transfer or contract adoption through proper corporate action.

For an ordinary stock corporation, this usually means a board resolution authorizing:

Acceptance of assigned assets and contracts
Assumption of specified liabilities
Opening of bank accounts
Appointment of authorized signatories
Execution of deeds, amendments, and notices

For an OPC, the single stockholder should prepare written resolutions and record them properly. The Revised Corporation Code allows an OPC to document actions through written resolutions recorded in its minutes book. (Supreme Court E-Library)

5. Execute the transfer documents

Common documents include:

Deed of Assignment of Contract Rights
Assignment and Assumption Agreement
Novation Agreement
Deed of Sale of Assets
Deed of Assignment of Receivables
Deed of Assignment of Intellectual Property
Board resolution or secretary’s certificate
Written notices to customers, suppliers, and debtors

Important documents are commonly notarized so they become public documents. Notarization also helps with banks, LGUs, the BIR, landlords, and counterparties that require formal proof.

6. Notify counterparties

Send written notices to:

Landlord
Customers with active contracts
Suppliers
Lenders
Insurers
Payment processors
Marketplace platforms
Franchise or licensing partners
Collection clients
Debtors who owe receivables

A practical notice should include:

Old contracting party
New corporation name and SEC registration details
Effective date of transfer
Whether the corporation assumes obligations
New billing name, TIN, invoice details, and bank account
Request for written acknowledgment or consent where required

7. Update government registrations

The SEC registration does not automatically update the DTI, BIR, barangay, or mayor’s permit records.

For a corporation, SEC registration is the basic proof of business registration. The SEC’s eSPARC system covers OPCs and domestic corporations, and applicants submit proposed company names and articles of incorporation for SEC review. (esparc.sec.gov.ph)

For the old DTI business name, DTI says cancellation may be applied for in cases such as cessation of business, sale or transfer of the business, or transfer beyond the registered territorial scope. (BNRS)

For BIR purposes, a corporation generally uses BIR Form No. 1903 and submits documents such as the SEC Certificate of Incorporation or Digital Certificate of Incorporation. For closure of a business registration, BIR’s listed requirements include BIR Form No. 1905, inventory of unused invoices or supplementary invoices, and the BIR Certificate of Registration. (Bureau of Internal Revenue)

At the LGU level, requirements vary by city or municipality. For example, Quezon City’s business permit amendment guide distinguishes DTI registration for sole proprietors from SEC registration for corporations, and requires the SEC-registered corporate name and business activity to match the business permit application. It also requires lease or address documents to show that the business owner is allowed to use the premises. (Quezon City Government)

What happens to debts and liabilities?

Existing debts of the sole proprietor

Existing debts do not disappear when the owner forms a corporation.

If Juan’s sole proprietorship owed ₱500,000 to a supplier before incorporation, the supplier may still collect from Juan unless there is a valid agreement releasing him and accepting the corporation as the new debtor.

This is especially important because a sole proprietor is personally liable for business debts. Incorporation may protect future operations if handled properly, but it does not erase old obligations.

Debts assumed by the corporation

The corporation may assume old debts, but assumption alone does not always release the sole proprietor. To fully replace the debtor, creditor consent is needed under the rules on novation.

A good novation clause should answer:

Who is released?
Who remains liable?
What happens to unpaid invoices before the transfer date?
Are guarantees, penalties, or interest carried over?
Are securities, deposits, or collateral also transferred?
From what exact date does the corporation become liable?

Fraudulent transfers and creditor concerns

If the sole proprietor transfers all assets to the corporation to avoid creditors, that can create serious legal risk.

For businesses involving inventory, goods, merchandise, fixtures, or equipment, the Bulk Sales Law may be relevant. Act No. 3952 covers certain transfers of stock of goods or all or substantially all of the business or trade, and requires steps such as a sworn statement of creditors, inventory, and notice to creditors at least 10 days before the transfer. Non-compliance may make the transaction fraudulent and void as to creditors. (Lawphil)

Even outside the Bulk Sales Law, transferring assets without fair consideration while leaving creditors unpaid can invite claims, injunctions, collection cases, or attempts to pierce the corporate veil.

What happens to employees?

Employment issues need careful handling because workers are not just “assets” that can be transferred like equipment.

If the sole proprietorship closes and the corporation hires the workers, document whether:

Employment is continuous or new
Length of service is recognized
Benefits are carried over
Unused leave, 13th month pay, commissions, and incentives are paid or assumed
SSS, PhilHealth, Pag-IBIG, and BIR withholding records are updated
The corporation becomes the employer of record

The Supreme Court has recognized that in asset sales, a good-faith buyer is generally not obliged to absorb employees unless it assumes that obligation, while the seller may be liable for separation pay if employees are lawfully separated. In stock sales, the corporation remains the same employer because only the shareholders change. (Supreme Court E-Library)

Although a sole proprietorship-to-corporation transition is not exactly a corporate stock sale, the practical lesson is the same: do not use the restructuring to force resignations, avoid earned benefits, or defeat security of tenure. In another case, the Supreme Court upheld employee absorption by a successor employer where the absorbed employees enjoyed continuity of employment status and rights. (Supreme Court E-Library)

What happens to leases?

Leases are one of the most common problem areas.

A landlord may reject the idea that the corporation has automatically replaced the sole proprietor, especially if:

The lease prohibits assignment
The corporation is newly registered
The rent checks come from a different bank account
The BIR-registered taxpayer has changed
The building requires updated occupancy or business permit documents
The lessor wants a new security deposit or guaranty

For rented premises, LGUs may require a valid and notarized lease or similar document showing that the business owner is allowed to use the location. Quezon City’s guide, for example, requires lease or agreement documents to be duly notarized and to show the complete business address and permission to use the premises. (Quezon City Government)

A practical solution is a short lease amendment signed by the landlord, the sole proprietor, and the corporation. It should state whether the corporation is replacing the sole proprietor, whether the sole proprietor remains as guarantor, and how deposits and unpaid rent are handled.

What happens to customer contracts and receivables?

Customer contracts need a case-by-case review.

For existing customer contracts

Check if the customer agreement allows assignment. If it does not, obtain written consent.

This matters for:

Long-term service contracts
B2B supply contracts
Construction or fit-out contracts
Retainer agreements
Subscription agreements
Data processing or outsourcing arrangements
Contracts with foreign clients

For foreign clients, they may ask for:

SEC Certificate of Incorporation
Articles of Incorporation
BIR Certificate of Registration
Board resolution or secretary’s certificate
Updated invoice details
W-8BEN-E or tax residency forms, depending on the foreign jurisdiction
Apostilled or authenticated corporate documents in some cases

If documents are issued in the Philippines for use abroad, DFA apostille processing is handled through its online appointment system, and DFA Aseana and consular offices with authentication services accept applicants through online appointments only. (DFA Appointment System)

For receivables

If customers owe money to the sole proprietorship, the receivable may be assigned to the corporation. But notify customers clearly. Under Article 1626 of the Civil Code, a debtor who pays the original creditor before knowing of the assignment is released from the obligation. (Lawphil)

What happens to permits, licenses, and registrations?

Many permits are tied to a specific legal person. A permit issued to a sole proprietor is usually not automatically usable by the corporation.

Common registrations to review:

Office or agency	What usually needs attention
SEC	Registration of corporation or OPC
DTI	Cancellation or non-renewal of sole proprietor’s business name if no longer used
BIR	New corporation registration; closure or update of sole proprietor registration
Barangay	New or amended barangay business clearance
LGU/BPLO	New or amended mayor’s permit/business permit
SSS, PhilHealth, Pag-IBIG	Employer registration update or new employer account
DOLE	Establishment report or employment-related updates where applicable
IPOPHL	Assignment or license of trademarks, if registered
Industry regulator	New or amended licenses, such as FDA, PCAB, LTFRB, DOE, DICT, or other sector-specific approvals

Do not assume that a license follows the brand name. Regulators usually look at the legal entity.

Special issues for foreigners

Foreigners doing business in the Philippines should pay particular attention to ownership restrictions.

Under Republic Act No. 7042, as amended by Republic Act No. 11647, the Philippines maintains a Regular Foreign Investment Negative List covering activities open to foreign investors or reserved to Philippine nationals. In 2026, Executive Order No. 113 promulgated the 13th Regular Foreign Investment Negative List, which identifies activities reserved to Philippine nationals subject to stated exceptions and conditions. (Supreme Court E-Library)

This affects incorporation and contract transfer if the business involves:

Land ownership
Retail trade
Advertising
Mass media
Educational institutions
Natural resources
Public utilities or regulated public services
Security agencies
Government procurement
Professions regulated by Philippine law

A foreigner who was operating as a sole proprietor may not always be able to place the same business into a corporation with the same ownership structure. Some businesses may allow 100% foreign ownership, while others require Filipino equity participation.

Foreign documents used for Philippine corporate transactions may also need notarization, consular acknowledgment, authentication, or apostille depending on where they were executed and where they will be used.

Common mistakes when moving from sole proprietorship to corporation

Mistake 1: Using the corporation’s invoices before the contract is transferred

This creates confusion. The customer contracted with the sole proprietor, but the invoice comes from the corporation. The customer’s accounting team may refuse payment, especially if the purchase order, contract, and invoice names do not match.

Mistake 2: Closing the sole proprietorship too early

If the sole proprietor closes the BIR or DTI registration before receivables are collected, contracts are assigned, or disputes are resolved, paperwork becomes harder. The owner may still be liable, but counterparties may be confused about who can issue receipts, collect payments, or sign documents.

Mistake 3: Assuming the SEC certificate is enough

SEC registration creates the corporation. It does not automatically transfer private contracts, permits, leases, employees, or receivables.

Mistake 4: Forgetting personal guarantees

Banks, landlords, and major suppliers often ask the owner to sign a personal guaranty. Even after incorporation, the owner may remain personally liable under those guarantees unless released in writing.

Mistake 5: Transferring assets without considering creditors

Moving all assets to a corporation while leaving unpaid creditors behind can trigger claims of fraudulent transfer, Bulk Sales Law issues, or veil-piercing arguments.

Mistake 6: Not documenting employee continuity

If employees continue working under the same management, same workplace, and same business name, but payroll suddenly shifts to the corporation, disputes may arise over tenure, benefits, and separation pay.

Practical document checklist

Document	Purpose
SEC Certificate of Incorporation	Proves corporate existence
Articles of Incorporation and bylaws	Shows corporate powers and purposes
Board resolution or OPC written resolution	Authorizes transfer and signatories
Assignment and Assumption Agreement	Transfers selected contracts and liabilities
Novation Agreement	Replaces sole proprietor with corporation with counterparty consent
Deed of Sale or Assignment of Assets	Transfers equipment, inventory, goodwill, or other assets
Deed of Assignment of Receivables	Transfers collectible accounts
IP Assignment or License Agreement	Transfers or licenses trademarks, logos, trade names, software, or content
Notice to Customers and Suppliers	Prevents payment and billing confusion
Lease Amendment or New Lease	Allows corporation to use the premises
BIR Form 1903 registration package	Registers the corporation with BIR
BIR Form 1905 closure/update documents	Updates or closes old sole proprietor registration
LGU business permit amendment or new permit	Aligns local permit with the new entity
Employee transition letters	Clarifies employer, tenure, compensation, and benefits

Sample contract transfer clause

A useful novation clause may look like this:

The parties agree that effective [date], [Corporation Name], a corporation duly organized under Philippine law, shall replace [Name of Sole Proprietor] as the contracting party under the Agreement dated [date]. [Counterparty Name] expressly consents to such substitution. From the effective date, [Corporation Name] shall assume and perform all obligations arising under the Agreement, and [Name of Sole Proprietor] shall be released from obligations arising after the effective date, except for obligations expressly identified in this Novation Agreement as retained by [Name of Sole Proprietor].

The wording should be adjusted depending on whether the sole proprietor remains liable for old debts, warranties, deposits, penalties, or tax obligations.

Frequently Asked Questions

Do contracts automatically transfer when a sole proprietorship becomes a corporation?

No. In the Philippines, forming a corporation does not automatically transfer the sole proprietor’s contracts. The parties usually need an assignment, assumption agreement, novation, amendment, or new contract.

Is a DTI business name the same as a corporation?

No. A DTI business name identifies the trade name of a sole proprietor. A corporation is registered with the SEC and has a separate juridical personality from its shareholders.

Can the corporation use the same business name as the sole proprietorship?

Possibly, but the name must be accepted by the SEC and should not conflict with existing registered names, trademarks, or regulatory restrictions. The DTI business name may also need cancellation or non-renewal if the sole proprietorship will stop operating.

Who is liable for debts incurred before incorporation?

Usually, the sole proprietor remains personally liable for debts incurred before incorporation unless the creditor clearly agrees to release the sole proprietor and accept the corporation as the new debtor.

Can a lease be transferred to the corporation?

Yes, but usually only with the landlord’s consent. Many leases prohibit assignment without prior written approval. The landlord may require a lease amendment, new lease, corporate documents, and sometimes a personal guaranty.

What happens to employees when the business incorporates?

Employees do not automatically become corporate employees just because the owner registered a corporation. The transition should be documented, including whether service is continuous, whether benefits are carried over, and who is responsible for accrued obligations.

Can customers pay the corporation for invoices issued by the old sole proprietorship?

They may refuse if their contract or purchase order is with the sole proprietor. To avoid payment delays, send a written notice of assignment or ask customers to sign an acknowledgment or amended agreement.

Does incorporation protect the owner from old business liabilities?

Not automatically. Incorporation may help separate future corporate liabilities from the owner’s personal assets, but it does not erase old sole proprietorship debts, personal guarantees, unpaid taxes, or obligations already incurred.

Is a novation always required?

Not always. If only rights such as receivables are being assigned, a deed of assignment and notice may be enough. If the corporation will replace the sole proprietor as debtor and the owner wants to be released, novation with creditor consent is usually needed.

Can a foreigner transfer a Philippine sole proprietorship business to a corporation?

Yes, in many cases, but the corporation’s ownership structure must comply with Philippine foreign equity restrictions. The 13th Regular Foreign Investment Negative List under Executive Order No. 113, s. 2026 should be checked for restricted activities.

Key Takeaways

A sole proprietorship does not have a legal personality separate from its owner.
A corporation becomes a separate juridical person only upon SEC issuance of its certificate of incorporation.
Contracts of the sole proprietor do not automatically become contracts of the corporation.
Rights may often be assigned, but substituting the corporation as debtor usually requires creditor consent and clear novation.
Leases, loans, franchise agreements, supplier contracts, and customer contracts should be reviewed one by one.
Old debts, personal guarantees, and tax obligations do not disappear upon incorporation.
Employees, permits, BIR registration, LGU permits, invoices, and receivables must be handled deliberately.
For foreigners, corporate ownership must comply with the current Foreign Investment Negative List and other nationality restrictions.