In the Philippine real estate market, an Assumption of Mortgage (informally known as "Pasalo") is a legal arrangement where a property owner (the mortgagor) transfers their rights and obligations under an existing mortgage to a third party (the buyer). The buyer then steps into the shoes of the original borrower, becoming responsible for the remaining balance and the conditions set by the lending institution.

While common, this process is governed by specific provisions under the Civil Code of the Philippines and the requirements of financing institutions like banks or Pag-IBIG Fund.

The Legal Framework: Why Consent is Key

Under Article 1293 of the Civil Code, a substitution of the debtor (novation) cannot be made without the express consent of the creditor. In the context of a mortgage, this means the bank or the lender must formally approve the buyer.

Most mortgage contracts in the Philippines contain a "Due-on-Sale Clause." This provision states that if the property is sold or transferred without the lender’s written consent, the lender has the right to demand full and immediate payment of the entire loan balance (acceleration) or initiate foreclosure.

Essential Documents for the Process

To formalize the transfer, several legal and financial documents must be executed and submitted:

Deed of Sale with Assumption of Mortgage: The primary legal contract between the seller and buyer outlining the purchase price, the remaining mortgage balance, and the buyer's commitment to assume the debt.
Deed of Assignment and Transfer of Rights: Used specifically to transfer the contractual rights held by the seller to the buyer.
Formal Written Consent from the Lender: A letter or certification from the bank or Pag-IBIG Fund explicitly approving the buyer as the new mortgagor.
Assumption of Mortgage Application: The buyer must undergo a credit investigation and submit income documents (ITR, Payslips, COE) similar to a new loan application.

Step-by-Step Process

Review the Original Loan Contract: Check for any restrictive covenants regarding transfers or specific penalties for early "substitution of collateral."
Preliminary Agreement: The buyer and seller agree on the "equity" (the amount the buyer pays the seller to take over the property) and the assumption of the remaining debt.
Lender Notification and Qualification: The buyer applies with the lender to assume the mortgage. The lender evaluates the buyer’s financial capacity.
Execution of Legal Documents: Once the lender gives a "conditional approval," the parties sign the Deed of Sale with Assumption of Mortgage. This document should be notarized.
Payment of Taxes:

Capital Gains Tax (6%): Usually based on the selling price or fair market value.
Documentary Stamp Tax (1.5%): Based on the consideration or value.

Administrative Update: The lender updates their records. Future billing statements and the eventual release of the Cancellation of Mortgage (upon full payment) will now be in the buyer's name.

Risks and Pitfalls

1. The "Secret" Pasalo

Many parties attempt to bypass the bank by signing a private "Deed of Sale with Assumption of Mortgage" without informing the lender. This is legally risky:

For the Seller: If the buyer stops paying, the seller’s name is still on the loan, leading to a ruined credit score and potential legal action.
For the Buyer: The bank may refuse to release the Title (TCT) to the buyer even after the loan is fully paid because the bank only recognizes the original borrower.

2. Redomestication of Terms

Banks may occasionally require a new appraisal or adjust interest rates when a mortgage is assumed, potentially increasing the monthly amortization for the buyer.

3. Tax Compliance

Failure to pay the required taxes within the Bureau of Internal Revenue (BIR) deadlines can lead to heavy surcharges and interest, making the eventual transfer of the Title difficult.

Distinguishing Assumption from "Subject To"

It is important to distinguish a formal Assumption of Mortgage from a sale "Subject to Mortgage." In a "Subject to" deal, the buyer takes the title but does not formally assume personal liability for the debt. In the Philippines, because of the standard "Due-on-Sale" clauses, the formal Assumption route is the only legally protected method for the buyer to ensure they will eventually own the property outright.