Fringe Benefits Tax on Interest-Free and Below-Market Loans to Employees

An employer that lends money to a managerial or supervisory employee interest-free, or at a rate below the BIR’s benchmark, creates a taxable fringe benefit on the interest it gave up — Revenue Regulations (RR) No. 3-98 treats that “foregone interest,” measured against a 12% benchmark rate, as the monetary value of the benefit, grossed up and taxed at the 35% final fringe benefits tax (FBT) rate.

This guide explains the foregone-interest mechanism behind loan-related fringe benefits, who it applies to, how the monetary value is computed, and how the employer remits it. For the broader FBT framework this rule sits inside, see What Is Fringe Benefits Tax and How Do You File BIR Form 1603Q?, and for how the managerial/supervisory threshold is drawn against rank-and-file employees generally, see Fringe Benefits Tax: Rank-and-File vs. Managerial Employees.

Who does the employee-loan FBT rule apply to? #

A loan an employer extends interest-free or below market rate is only an FBT issue when the borrower is a managerial or supervisory employee — the same rank-based threshold that governs every fringe benefit category under NIRC Section 33. A rank-and-file employee who receives the identical interest-free loan is not subject to fringe benefits tax on it at all; the loan sits outside the FBT regime entirely. That does not mean it is automatically tax-free — if the “loan” is not a genuine loan with a real expectation of repayment but functions as disguised additional pay (for example, amounts routinely written off rather than collected), the BIR can treat it as ordinary compensation income subject to withholding tax on compensation instead. A bona fide loan to a rank-and-file employee, with real repayment terms, generally raises no separate income tax issue for either party.

What is the “foregone interest” fringe benefit mechanism? #

The taxable fringe benefit on a below-market employee loan is not the loan principal — it is the interest the employer chose not to charge, measured against a benchmark rate the BIR treats as the market rate. RR No. 3-98 addresses this directly. Secondary tax-practice sources that reproduce the regulation’s wording state the rule as:

“If the employer lends money to his employee free of interest or at a rate lower than twelve percent (12%), such interest foregone by the employer or the difference of the interest assumed by the employee and the rate of twelve percent (12%) shall be treated as a taxable fringe benefit.”

In practice, this means the BIR does not ask whether the employer actually collected any interest income — it imputes interest at the benchmark rate regardless, and taxes the gap between that imputed amount and whatever the employee was actually charged. A loan at exactly 12% or higher produces no foregone-interest fringe benefit; a loan below 12%, including a fully interest-free loan, produces one sized to the shortfall.

What is the current benchmark interest rate under RR No. 3-98? #

The regulation fixes the benchmark at twelve percent (12%) per annum, and states that this rate remains in effect until the BIR issues a subsequent regulation revising it. Because the benchmark is set by regulation rather than tied automatically to a market index, it does not move with prevailing bank lending rates on its own — a change requires the BIR to issue a new revenue regulation. Employers relying on this rule for a current loan should confirm, at the time they compute the benefit, that no more recent regulation has superseded the 12% figure, since RR No. 3-98 itself contemplates that a future issuance could adjust it.

How do you compute the fringe benefit and the FBT? #

Computing the tax runs in three steps: find the foregone interest on the outstanding balance, gross up that amount, then apply the 35% final FBT rate. The mechanics mirror every other FBT category — only the way the monetary value itself is derived differs.

1. Compute the foregone interest. Multiply the outstanding loan balance by the difference between the 12% benchmark rate and the rate the employer actually charged (12% minus 0% for a fully interest-free loan). This is the monetary value of the fringe benefit.
2. Gross up the monetary value. Divide the monetary value by 65% (since the 35% FBT is computed on a grossed-up base, the monetary value represents the after-tax 65% portion).
3. Apply the 35% FBT rate. Multiply the grossed-up value by 35% to get the fringe benefits tax due.

Worked example: a ₱500,000 interest-free loan to a branch manager #

A company extends a ₱500,000 loan to a branch manager — a supervisory employee — at 0% interest, with the full principal outstanding for the year and no interim repayments. Using the 12% benchmark rate under RR No. 3-98:

Because BIR Form 1603Q is filed quarterly, the employer would not wait until year-end to remit this — it computes and reports the benefit each quarter the loan balance is outstanding. On a flat ₱500,000 balance for a full quarter, the quarterly foregone interest is ₱500,000 × 12% × (3/12) = ₱15,000.00, grossed up to ₱23,076.92, producing quarterly FBT of ₱8,076.92. Across four full quarters at a constant balance, that totals the same ₱32,307.69 computed above. If the branch manager instead makes principal repayments during the year, each quarter’s foregone interest is recomputed on the balance actually outstanding for that period, not the original ₱500,000.

If the employer had charged 5% interest instead of 0%, only the 7-percentage-point gap (12% − 5%) would be treated as foregone interest — the monetary value would drop to ₱500,000 × 7% = ₱35,000 annually, with FBT computed the same way on that smaller base.

How is the loan-related fringe benefit reported and remitted? #

The foregone-interest benefit is combined with any other fringe benefits the same managerial or supervisory employee received for the quarter and reported together on BIR Form 1603Q, the quarterly remittance return for fringe benefits. A branch manager with both an interest-free loan and a company car, for instance, would have each benefit valued under its own RR No. 3-98 formula, then the totals combined for that quarter’s 1603Q filing. The tax is a final withholding tax borne by the employer — it is not added to the employee’s taxable compensation and does not appear on the employee’s BIR Form 2316. For the full quarterly filing mechanics and deadlines, see What Is Fringe Benefits Tax and How Do You File BIR Form 1603Q?.

How does this differ for a rank-and-file employee? #

A rank-and-file employee who receives the same interest-free or below-market loan is outside the FBT rules entirely, because FBT under NIRC Section 33 only reaches managerial and supervisory staff. That does not automatically make the arrangement invisible to the BIR: if the loan is not a real loan — no promissory note, no realistic repayment schedule, or a pattern of the employer simply forgiving the balance — the amount can instead be characterized as additional compensation and subjected to ordinary withholding tax on compensation. The distinction between a genuine loan and disguised pay, and the fuller comparison of how rank-and-file and managerial employees are treated differently across every fringe benefit category, is covered in Fringe Benefits Tax: Rank-and-File vs. Managerial Employees.

Frequently asked questions #

Is an interest-free loan from an employer to an employee always subject to fringe benefits tax? #

No. It is a taxable fringe benefit only when the borrower is a managerial or supervisory employee. A loan on the same interest-free or below-market terms to a rank-and-file employee is not run through the fringe benefits tax rules at all; it is instead evaluated as ordinary compensation only if the arrangement functions as additional pay rather than a genuine loan.

What interest rate does the BIR treat as the benchmark for computing foregone interest? #

Revenue Regulations No. 3-98 sets the benchmark at twelve percent (12%) per annum, remaining in effect until revised by a subsequent regulation. If an employer charges an employee less than 12%, including 0%, the difference between 12% and the rate actually charged is treated as foregone interest and taxed as a fringe benefit.

How is the taxable fringe benefit computed on an interest-free employee loan? #

Multiply the outstanding loan balance by the difference between the 12% benchmark rate and the rate actually charged (12% minus 0% for a fully interest-free loan) to get the foregone interest, which is the monetary value of the benefit. That amount is then grossed up by dividing by 65% and taxed at the 35% final fringe benefits tax rate, remitted by the employer.

Who pays the fringe benefits tax on a below-market employee loan — the employer or the employee? #

The employer bears the fringe benefits tax. It is a final tax computed on the grossed-up monetary value of the foregone interest and is a liability of the employer as withholding agent, not the employee, and it does not appear as additional taxable compensation on the employee’s BIR Form 2316.

Which BIR form is used to report and remit fringe benefits tax on employee loans? #

BIR Form 1603Q, the quarterly remittance return for fringe benefits, the same form used for every other category of fringe benefit under Revenue Regulations No. 3-98. The foregone-interest benefit on an employee loan is combined with any other fringe benefits the same employee received for the quarter and reported together.

Does the fringe benefit continue every quarter for as long as the loan is outstanding? #

Yes. Foregone interest is computed on the outstanding loan balance for as long as the loan remains unpaid at less than the 12% benchmark rate, so a multi-year interest-free loan generates a recurring fringe benefit and a recurring BIR Form 1603Q liability each quarter until the loan is repaid or begins accruing interest at 12% or more.

Summary #

An employer loan to a managerial or supervisory employee at 0% or below the 12% benchmark rate set by RR No. 3-98 creates a taxable “foregone interest” fringe benefit — the gap between 12% and whatever rate was actually charged, applied to the outstanding balance, grossed up and taxed at the 35% final fringe benefits tax rate on BIR Form 1603Q each quarter the loan remains outstanding. The same loan to a rank-and-file employee falls outside FBT altogether, though a loan in name only can still be treated as ordinary compensation. See What Is Fringe Benefits Tax and How Do You File BIR Form 1603Q? for the broader filing framework, and Fringe Benefits Tax: Rank-and-File vs. Managerial Employees for how the rank threshold plays out across other benefit types.