A legal article on the incidence, liability, shifting of burden, contractual allocation, and practical treatment of Documentary Stamp Tax in Philippine loan and mortgage transactions

In the Philippines, one of the most misunderstood parts of a loan transaction is Documentary Stamp Tax (DST). Borrowers often assume that because they are the ones receiving the loan, they must automatically pay all documentary stamp tax. Lenders, on the other hand, sometimes assume the opposite: that DST is always the borrower’s burden because the borrower requested the loan and signed the promissory note and mortgage papers. Both assumptions are too simple.

The correct legal answer is this:

Under Philippine tax law, Documentary Stamp Tax is imposed on the document or instrument and on the transaction evidenced by it, and legal liability depends on the nature of the taxable instrument. In practice, however, the economic burden may be shifted by contract, so the person who is legally liable for DST and the person who ultimately shoulders it are not always the same.

That is the controlling principle.

This article explains who pays DST on a loan mortgage agreement and a promissory note in the Philippine setting, how the tax applies to each instrument, the difference between statutory liability and contractual shifting, what happens in bank and private loans, how DST interacts with real estate mortgages and chattel mortgages, whether both the note and the mortgage may be taxed, and the practical consequences of nonpayment.

I. What Documentary Stamp Tax is

Documentary Stamp Tax is a tax on documents, instruments, loan agreements, and papers evidencing the acceptance, assignment, sale, transfer, or obligation arising from a transaction. It is not primarily a tax on income. It is not a VAT. It is not a withholding tax. It is a tax imposed because a legally significant instrument or transaction exists in a form recognized by tax law.

In loan practice, DST commonly appears because the parties execute one or more of the following:

a promissory note;
a loan agreement;
a deed of real estate mortgage;
a chattel mortgage;
ancillary credit documents.

The tax treatment depends on which document or transaction is being examined.

II. The first major distinction: legal liability versus economic burden

Before discussing specific instruments, one distinction must be kept clear:

A. Legal liability

This is the question: Who is the taxpayer or person liable under tax law for the DST?

B. Economic burden

This is the question: Who actually ends up paying the amount in practice?

These are not always identical.

For example, the law may treat the lender, issuer, or executing party as the one responsible for the DST in a particular transaction. But the loan documents may validly state that the borrower will shoulder or reimburse the DST as part of the cost of obtaining the loan.

Thus, in actual transactions, the party who remits or accounts for the DST may not be the same as the party who economically bears it.

This is why people often speak loosely and say “the borrower pays DST,” when what they really mean is that the borrower was contractually required to shoulder the cost, not necessarily that the borrower was always the statutory taxpayer in the strictest sense.

III. Why the promissory note and the mortgage must be analyzed separately

A common mistake is to think of a “loan mortgage agreement” as one single taxable object. In law and tax practice, however, there are often multiple instruments in the same loan transaction.

The most common structure is:

a promissory note, which evidences the debt or promise to pay; and
a mortgage, which secures that debt with property.

These are related, but not identical.

The promissory note creates or evidences the personal obligation to pay. The mortgage creates a security interest over property to secure that obligation.

Because they perform different legal functions, DST treatment must be considered separately for each.

IV. DST on the promissory note or debt instrument

A promissory note is generally a taxable instrument for DST purposes in the Philippines. This is because it is a written promise to pay money and falls within the class of debt instruments subject to documentary stamp taxation.

In substance, the promissory note is evidence of:

a borrowing;
a promise to repay;
a debt obligation.

As a result, the promissory note or equivalent debt instrument typically attracts DST based on the applicable law and rate structure.

Who is legally liable?

In practical tax administration, the party associated with the issuance or making of the debt instrument is generally involved in the DST treatment. But because the transaction is a loan, the lender often handles the compliance, especially institutional lenders such as banks and financing companies, and then passes the cost on to the borrower by contract.

Who usually shoulders it in practice?

In many bank and commercial loan transactions, the borrower usually shoulders the DST on the promissory note economically, because the loan documents commonly provide that all taxes and expenses incident to the loan documentation shall be for the borrower’s account.

So for the promissory note, the practical answer is often:

the lender computes and handles the DST, but
the borrower reimburses or shoulders it under the contract.

That is the common pattern, though the exact drafting matters.

V. DST on the mortgage instrument

A mortgage is not the same as the debt. It is the security for the debt.

If the loan is secured by a real estate mortgage or chattel mortgage, the mortgage instrument may itself also be subject to DST, because it is a taxable security instrument distinct from the promissory note or debt evidence.

This means a loan transaction may produce DST on the note and DST on the mortgage, because they are different taxable documents serving different legal purposes.

Why this matters

Borrowers are often surprised when they see two separate DST-related charges:

one connected to the loan or note, and
another connected to the mortgage.

This is not automatically duplication in the improper sense. It may reflect taxation of two distinct instruments.

VI. Real estate mortgage versus chattel mortgage

The nature of the collateral matters.

A. Real estate mortgage

A real estate mortgage secures the loan with immovable property, such as land or a condominium unit.

B. Chattel mortgage

A chattel mortgage secures the loan with movable property, such as vehicles, machinery, equipment, or certain personal property.

Both kinds of mortgage may have DST consequences as security instruments. The precise rate or computational framework depends on the applicable tax provisions, but the legal point is the same: the mortgage is its own taxable instrument separate from the note or loan obligation.

VII. Can both the promissory note and the mortgage be subject to DST?

Yes, in principle.

This is one of the most important practical answers in Philippine loan documentation:

The promissory note and the mortgage may each give rise to DST because they are separate instruments with separate legal functions.

The note evidences the debt. The mortgage secures it.

Thus, a person asking “Who pays DST on a loan mortgage agreement and promissory note?” must be prepared for the answer that there may be more than one DST incidence in the transaction.

VIII. The promissory note is not eliminated by the mortgage

Another common misunderstanding is that once a loan is secured by mortgage, the promissory note somehow becomes secondary or disappears for DST purposes. That is incorrect.

The mortgage does not replace the debt instrument. It secures it. The promise to pay still exists independently. If the borrower defaults, the lender may pursue remedies tied to both the personal obligation and the security, subject to the governing law and the terms of the loan documents.

Thus, from a DST perspective, the existence of a mortgage does not generally erase the taxable character of the promissory note or debt instrument.

IX. Statutory payer versus contractual borrower-charge in bank practice

In banking and formal financing practice, what usually happens is this:

the lender prepares the loan documents;
the lender computes the DST and related charges;
the lender remits or accounts for the tax as part of compliance;
the lender charges the amount to the borrower under the loan agreement or disclosure statement.

That is why borrowers often experience DST as a loan charge deducted from proceeds or billed as part of documentation expenses.

Legally, however, this arrangement is not simply a statement that “borrowers are always the statutory taxpayers.” It is better understood as:

the transaction is taxable,
the lender commonly handles compliance,
and the borrower commonly bears the cost by contractual allocation.

X. In private loans, the answer may be less organized but the same principles apply

In private loans between individuals, families, friends, or small businesses, DST is often ignored in practice until trouble arises. But the tax principles still apply.

If the parties execute:

a promissory note,
a notarized loan agreement,
a real estate mortgage,
a chattel mortgage,

DST issues may still exist even if the parties do not think like banks.

Who pays in a private loan?

If the contract is silent, the legal and tax analysis becomes more technical, and the parties may later dispute who should have borne the tax. In practice, however, the safest course is to address allocation expressly in the contract.

A private lender may insist that:

the borrower shoulder all taxes and documentation expenses.

A borrower may insist on:

splitting the costs, or
requiring the lender to absorb taxes related to the lender’s own documentation.

Without express agreement, confusion is likely.

XI. If the contract expressly says the borrower shall shoulder DST

If the promissory note, loan agreement, or mortgage documents clearly state that:

all documentary stamp taxes, registration fees, notarial fees, and incidental expenses shall be for the account of the borrower,

then the borrower will usually bear the economic burden as a contractual matter.

This is extremely common in:

bank loans;
financing company loans;
secured real estate loans;
vehicle financing;
commercial credit facilities.

In that situation, even if the tax compliance is operationally handled by the lender or its counsel, the borrower is typically the one ultimately paying for it.

XII. If the contract is silent

If the contract does not say who shoulders DST, the matter becomes less clear in practical allocation even though the tax law still applies.

In such cases, one must distinguish:

who had the legal obligation to account for and pay the tax under the nature of the instrument and transaction, and
whether one party can later recover or charge that amount against the other.

In private dealings, silence often leads to disputes. One party may argue:

the borrower should shoulder because the borrower needed the money.

The other may argue:

the lender should shoulder because the lender drafted and imposed the instrument.

This is why express allocation is strongly recommended.

XIII. Loan agreement versus promissory note

Sometimes parties execute both a loan agreement and a promissory note. This can create additional DST analysis because the law may focus on whether separate taxable instruments were issued or whether the note is the operative debt instrument.

The exact documentary arrangement matters. Some transactions use:

only a promissory note,
a detailed loan agreement plus note,
a note plus separate mortgage,
or a consolidated credit document package.

The safer legal approach is not to assume that “the whole loan package is taxed only once no matter what documents exist.” The actual instruments executed matter.

XIV. DST on renewal, restructuring, or extension

DST questions also arise when the original loan is:

renewed,
restructured,
extended,
increased,
or refinanced.

A new promissory note, amended mortgage, or restructured obligation may create fresh DST consequences depending on the legal effect of the new instruments.

Thus, the question “who pays DST?” is not only for new loans. It can reappear when old loans are modified and new papers are signed.

In practice, lenders often again shift these costs to the borrower unless negotiated otherwise.

XV. Mortgage registration fees are different from DST

Another common misunderstanding is the failure to distinguish DST from:

Registry of Deeds fees,
annotation fees,
transfer taxes,
notarial fees,
legal documentation fees.

For example, in a real estate mortgage, the borrower may be charged for:

DST on the note,
DST on the mortgage,
registration or annotation fees,
notarial fees,
documentary processing fees.

These are not all the same thing. A person asking “Who pays DST?” should not confuse tax with registration cost.

XVI. Does notarization create DST by itself?

Not exactly.

Notarization does not itself create DST in the sense that every notarized document is automatically taxed just because it is notarized. Rather, DST arises because the instrument belongs to a taxable class under tax law.

A promissory note is taxed because it is a debt instrument. A mortgage is taxed because it is a mortgage instrument. Notarization may be practically necessary or common, especially for enforceability and registration, but the tax is tied to the instrument’s legal character, not merely to the notarial act.

XVII. If the lender deducts DST from loan proceeds

In many loans, especially consumer and bank loans, borrowers do not hand over DST separately. Instead, the lender deducts it from the loan proceeds upon release.

For example:

approved loan amount: ₱1,000,000
net proceeds received: less DST and charges

This is common and often contractually authorized. Economically, the borrower has still paid the DST because the amount was withheld from the funds that would otherwise have been released.

This is one of the most common practical answers to “who pays?” In real life, the borrower often pays by receiving less net proceeds.

XVIII. If the lender absorbs the DST

It is legally possible for the lender to absorb the economic burden if the lender wants to, especially as a commercial incentive or policy choice.

For example, a lender may advertise:

“zero documentation charges,”
“free processing,”
or “DST waived by the bank.”

In such a case, this usually means the lender is absorbing the cost commercially, not that the transaction somehow ceased to be taxable.

So yes, the lender may shoulder DST in practice—but usually because it chooses or agrees to do so, not because that is always the mandatory economic result of every loan.

XIX. Can the parties agree that the borrower will pay all DST and mortgage taxes?

As a matter of commercial practice, yes, parties commonly agree that the borrower will shoulder:

DST,
notarial fees,
registration expenses,
annotation fees,
and other costs of documenting and securing the loan.

This is especially common where:

the borrower is the party seeking credit,
the lender is imposing standard loan conditions,
the security documents are being created mainly for the borrower’s access to financing.

Such clauses are routine and generally enforceable unless some separate legal issue exists.

XX. If the borrower refuses to pay the DST-related charges

If the borrower refuses to pay the DST burden allocated under the contract, several consequences may follow depending on timing:

the lender may refuse to release the loan;
the lender may deduct the amount from proceeds anyway if authorized;
the lender may treat the borrower as in default of documentation conditions;
the mortgage may remain unregistered until charges are settled;
disputes may arise about who should have borne the cost.

In a bank setting, the lender usually solves this by deducting the charges before release. In a private setting, refusal to allocate the tax may delay the transaction or produce later reimbursement disputes.

XXI. Nonpayment of DST does not automatically erase the loan, but it creates problems

A crucial tax-law point is that failure to pay DST does not necessarily mean the underlying loan obligation never existed. The borrower may still owe the money. The note and mortgage may still have legal significance.

However, nonpayment of DST can create:

tax penalties;
surcharge and interest exposure;
documentary and compliance problems;
evidentiary or registration complications;
issues in enforceability or formal processing.

Thus, the question is not only who pays, but also ensuring that someone actually complies properly.

XXII. In real estate practice, borrowers usually shoulder almost everything

As a practical matter in Philippine real estate loans—especially bank-financed housing, commercial real estate loans, and mortgage-backed loans—the borrower usually shoulders most transaction costs, including:

DST on the loan or note,
DST on the mortgage,
annotation fees,
notarial expenses,
and other related charges,

unless the lender expressly agrees otherwise.

This is so common that many borrowers think it is a universal legal rule. Strictly speaking, it is better described as standard market practice backed by contract, not merely a casual assumption.

XXIII. If the lender and borrower are both corporations

When both parties are corporate entities, allocation of DST is often handled in sophisticated loan documents. The documents commonly specify that:

all taxes and expenses relating to the credit facility, collateral documentation, and enforcement shall be for the account of the borrower.

This tends to make the practical burden even clearer. In commercial transactions, ambiguity is less tolerated, and the contract often speaks directly to DST allocation.

Thus, in business lending, the answer to “who pays?” is often simply found in the tax-and-expenses clause.

XXIV. If the note is unsecured and there is no mortgage

If the loan is evidenced only by a promissory note and no mortgage exists, then the question simplifies:

there may still be DST on the note or debt instrument,
but there is no separate mortgage DST because no mortgage instrument exists.

This shows again why one must analyze each document separately.

XXV. If there is a mortgage but no separate promissory note

Sometimes the debt terms are embedded in a broader loan document or secured instrument without a separately titled promissory note. The tax analysis then depends on the actual instrument executed and what taxable class it falls into.

The lesson is the same:

do not focus only on document titles,
focus on the legal nature of the obligation and security instrument.

XXVI. Common misconceptions

Several misconceptions repeatedly appear in practice.

Misconception 1: The borrower always pays DST because the borrower gets the money

Not always as a matter of legal incidence, though often yes as a matter of contractual burden.

Misconception 2: If the lender pays the DST to the BIR, then the lender is the true economic payer

Not necessarily. The lender may simply be the remitting party and then charge the amount to the borrower.

Misconception 3: There is only one DST in a loan transaction

Not necessarily. The note and the mortgage may each be taxable.

Misconception 4: Notarization is the tax

No. Notarization and DST are different.

Misconception 5: If DST is not paid, the borrower no longer owes the loan

Wrong. Nonpayment of DST creates tax and documentary issues, but does not automatically wipe out the debt.

XXVII. Best drafting practice in loan documents

To avoid disputes, a loan agreement should clearly state:

which party shall shoulder DST on the promissory note;
which party shall shoulder DST on the mortgage;
who handles filing and remittance;
whether the lender may deduct the amount from proceeds;
whether registration and notarial fees are also for the borrower’s account;
whether future restructuring or renewals will also be for the borrower’s account.

A clear clause avoids later debate.

XXVIII. The strongest practical answer

In ordinary Philippine lending practice, especially bank and secured loan transactions, the most practical answer is this:

The borrower usually shoulders the Documentary Stamp Tax on the promissory note and on the mortgage as a matter of contractual allocation and market practice, even though the lender often handles the computation and remittance.

That is the practical answer most borrowers experience in real life.

But the more precise legal answer remains:

You must distinguish the taxable instrument, the statutory incidence, and the contractual shifting of cost.

XXIX. The legal bottom line

The clearest Philippine legal statement on the issue is this:

Documentary Stamp Tax on a loan transaction may apply separately to the promissory note or debt instrument and to the mortgage securing it. The person who is legally responsible under tax law and the person who ultimately shoulders the amount may differ, because loan documents commonly shift the economic burden to the borrower.

So if the question is:

“Who pays DST as a practical matter?” the answer is often: the borrower.

If the question is:

“Who is treated as liable under tax law for the taxable instrument?” the answer requires instrument-specific analysis and should not be oversimplified into one sentence without examining the exact documents.

XXX. Final conclusion

In the Philippines, there is no fully satisfactory one-line answer to who pays Documentary Stamp Tax on a loan mortgage agreement and promissory note unless one distinguishes among the note, the mortgage, the statutory tax incidence, and the contractual shifting of costs. A promissory note is generally taxable as a debt instrument. A mortgage is generally taxable as a security instrument. Those are separate questions. In actual commercial practice, especially in bank lending, the lender commonly computes and remits the DST but contractually passes the cost on to the borrower, often by deduction from loan proceeds or by express reimbursement clause.

The most accurate practical conclusion is therefore this: borrowers usually end up shouldering DST on both the promissory note and the mortgage, but that result commonly comes from contractual allocation and standard lending practice layered on top of the underlying tax law.