The Philippine income tax system for individuals is principally governed by Title II of the National Internal Revenue Code of 1997 (NIRC), as amended. The most significant reform affecting exemptions and deductions occurred with the enactment of Republic Act No. 10963, otherwise known as the Tax Reform for Acceleration and Inclusion (TRAIN) Law, which took effect on 1 January 2018. This legislation repealed long-standing personal and additional exemptions previously available to taxpayers, including married individuals supporting dependents. The reform replaced those exemptions with a restructured progressive tax schedule featuring a uniform zero-rate bracket, thereby eliminating distinctions based on marital status or the number of dependents for income tax purposes.

Pre-TRAIN Regime (Prior to 1 January 2018)

Under the original Section 35 of the NIRC (as amended by Republic Act No. 8424), individual taxpayers enjoyed two categories of exemptions deductible from gross income:

Basic personal exemption of ₱50,000 for every individual taxpayer, regardless of marital status.
Additional exemption of ₱25,000 for each qualified dependent child, limited to a maximum of four (4) dependents.

Married individuals were subject to separate taxation on their respective incomes. The additional exemption for qualified dependents could be claimed by only one spouse; the other spouse could not duplicate the claim for the same dependent. There was no separate exemption granted merely for the non-earning spouse. Employers applied graduated withholding tax tables that reflected the taxpayer’s status (single or married) and the number of claimed dependents, reducing the amount withheld from compensation income.

A “qualified dependent” was defined under the same provision as a legitimate, illegitimate, or legally adopted child who satisfied all of the following conditions at the close of the taxable year:

Not more than twenty-one (21) years of age;
Not married;
Not gainfully employed;
Chiefly dependent upon the taxpayer for support; and
Living with the taxpayer (except when the child was pursuing education away from home).

If the child was over twenty-one years of age but physically or mentally incapacitated and incapable of self-support, the additional exemption continued indefinitely. These rules provided measurable tax relief to families, reducing taxable income by up to ₱150,000 (₱50,000 basic + ₱100,000 for four dependents) in addition to any other allowable deductions.

Abolition of Personal and Additional Exemptions under the TRAIN Law

Section 4 of RA 10963 expressly repealed the entire Section 35 of the NIRC. Effective 1 January 2018, neither the basic personal exemption nor the additional exemption for qualified dependents exists for any individual taxpayer. Married individuals with any number of dependents are now taxed under exactly the same rules as single persons or childless couples. The legislative purpose was simplification of compliance, broadening of the tax base, and redistribution of relief through lower tax rates rather than status-based exemptions.

The definition of “qualified dependent” previously found in Section 35 has lost its operative effect for income tax computations, although the concept may retain limited relevance in non-tax statutes (for example, social security benefits or labor law entitlements).

Current Tax Rate Schedule and Uniform Zero Bracket

In place of repealed exemptions, the TRAIN Law introduced a new set of rates under Section 32 of the NIRC that applies uniformly to all resident citizens, non-resident citizens, and resident aliens. The first ₱250,000 of taxable income is taxed at zero percent (0%), creating an effective minimum threshold identical for every individual irrespective of family circumstances. The complete schedule is:

Not over ₱250,000 — 0%
Over ₱250,000 but not over ₱400,000 — 15% of the excess over ₱250,000
Over ₱400,000 but not over ₱800,000 — ₱22,500 + 20% of the excess over ₱400,000
Over ₱800,000 but not over ₱2,000,000 — ₱102,500 + 25% of the excess over ₱800,000
Over ₱2,000,000 but not over ₱8,000,000 — ₱402,500 + 30% of the excess over ₱2,000,000
Over ₱8,000,000 — ₱2,202,500 + 35% of the excess over ₱8,000,000

For taxable income ( TI ) falling in the second bracket (( 250000 < TI \leq 400000 )) the tax liability is given by the formula:

[ \text{Tax due} = 0.15 \times (TI - 250000) ]

Higher brackets follow analogous piecewise linear functions. Because the zero bracket and rate schedule are status-neutral, the presence of a spouse or dependents produces no additional reduction in tax liability.

Allowable Deductions under the Current Regime

Although family-based exemptions have been eliminated, taxpayers may still reduce gross income through the following deductions, none of which are enlarged by marital status or dependents:

Compensation Income Earners (Employees)
Deductions are strictly limited to mandatory contributions: Social Security System (SSS), Government Service Insurance System (GSIS), Philippine Health Insurance Corporation (PhilHealth), Home Development Mutual Fund (Pag-IBIG), and labor union dues. No further personal or family deductions are permitted.
Optional Standard Deduction (OSD)
Individuals engaged in trade or business or the practice of a profession may elect a standard deduction equal to forty percent (40%) of gross sales or receipts (business) or forty percent (40%) of gross income (profession). The OSD is in lieu of itemized deductions and requires no supporting documentation. Pure compensation earners are ineligible.
Itemized Deductions (Section 34, NIRC)
Taxpayers who do not elect OSD may claim actual ordinary and necessary expenses directly connected with the conduct of trade, business, or the practice of profession. Allowable items include salaries and wages paid to employees, rent, travel expenses, interest, taxes (other than income tax), losses, bad debts, depreciation, depletion, charitable contributions, and research and development costs. Substantiation and documentation requirements apply strictly.

No provision in the current NIRC increases or creates any deduction category based solely on the taxpayer being married or supporting dependents.

Computation of Taxable Income for Married Individuals

For a married compensation earner the steps are:

Gross compensation income
minus mandatory contributions and union dues
= Taxable compensation income

The applicable rate schedule is then applied to the taxable amount. Example (annual figures):

Gross compensation: ₱480,000
Mandatory contributions: ₱20,000
Taxable income: ₱460,000

Tax computation:

₱250,000 at 0% = ₱0
Excess ₱210,000 at 15% = ₱31,500
Total income tax due: ₱31,500

The same computation applies regardless of the number of dependents or the spouse’s employment status.

Filing Requirements

Section 51 of the NIRC mandates separate filing for married persons. Each spouse files an individual income tax return (BIR Form 1700 for compensation income only, or BIR Form 1701 for mixed income) reporting only his or her own income. Joint returns are not permitted. If one spouse derives no income, the earning spouse files solely on his or her own account. The existence of dependents does not alter filing deadlines (15 April of the following year for calendar-year taxpayers), required forms, or payment obligations.

Employers apply the BIR’s withholding tax tables (issued under relevant Revenue Regulations) directly to taxable compensation without subtracting any personal or additional exemptions. The tables are status-neutral post-TRAIN.

Other Related Tax and Non-Tax Considerations

Certain fringe benefits provided by employers to employees or their dependents remain subject to fringe benefits tax (32% on the monetary value, paid by the employer), but this does not create a deduction or exemption for the employee’s income tax return. Exemptions for the 13th-month pay (up to ₱90,000) and de minimis benefits apply uniformly to all employees without regard to family size.

While income tax relief tied to dependents no longer exists, the family-home deduction of up to ₱10,000,000 under estate tax rules (Section 86(A)(5), NIRC, as amended) continues to benefit surviving spouses and heirs. These provisions lie outside the scope of annual income taxation.

The current legal framework therefore treats all individual taxpayers alike for purposes of income tax exemptions and deductions. Married individuals with dependents receive no preferential treatment beyond the uniform zero bracket and the standard allowable deductions available to every taxpayer. Compliance is governed exclusively by the amended NIRC provisions, BIR regulations, and the annual withholding and filing requirements derived therefrom.