A legal article on the governing rules, formulas, interactions, and practical payroll treatment

In Philippine labor law, pay computation for work rendered beyond the normal workday, during nighttime hours, and on holidays is governed mainly by the Labor Code, its implementing rules, and settled administrative practice under the Department of Labor and Employment. The subject becomes complicated not because each concept is difficult by itself, but because they overlap. A single shift may simultaneously involve overtime, night work, a regular holiday, a special non-working day, a rest day, or several of these at once. The correct pay then depends on stacking the legally required premiums in the proper order.

This article explains the full framework in Philippine context: who is covered, what each premium means, what the standard rates are, how the premiums interact, how to compute them, and what common errors employers and employees should avoid.

I. The governing concepts

At the core are four separate pay ideas:

First, the basic wage for ordinary working time. This is the employee’s wage for work performed within eight hours on an ordinary working day.

Second, overtime pay. This is the additional compensation for work performed beyond eight hours in a workday.

Third, night shift differential. This is the premium for work performed during the legally defined nighttime window.

Fourth, holiday pay or holiday premium pay. This is the additional or substitute compensation required when a worker does not work on a regular holiday, or when the worker does work on a regular holiday or on a special day.

These are legally distinct. Night differential is not a substitute for overtime. Holiday premium is not a substitute for night differential. Overtime on a holiday is not computed the same way as overtime on an ordinary day. Each rule must be identified first before the final pay can be computed.

II. Coverage: who is entitled

The usual statutory rules on overtime pay, night shift differential, holiday pay, and premiums for work on rest days and holidays generally apply to rank-and-file employees in the private sector.

As a general rule, these benefits do not apply in the same way, or may not apply at all, to the usual categories of employees exempted from hours-of-work rules, such as:

managerial employees;
officers or members of a managerial staff who meet the legal tests for exemption;
field personnel, in the strict legal sense;
family members dependent on the employer for support in certain arrangements;
domestic workers under their own governing law;
workers paid by results in some circumstances, depending on the specific rule involved;
government employees, who are covered by civil service and government compensation rules rather than the Labor Code provisions for private employment.

The question of exemption is critical. Many payroll disputes begin with an employer casually calling someone “supervisor” or “manager” without meeting the legal standards for exemption. Job title alone does not control. Actual duties do.

III. Ordinary hours of work as the starting point

The normal working time benchmark is eight hours a day. Once work exceeds eight hours, overtime rules usually attach, unless the employee is in an exempt class.

To compute any premium, payroll usually needs a base hourly rate. A common way is:

Hourly Rate = Daily Rate ÷ 8

If monthly-paid, payroll may first determine the equivalent daily rate under the company’s pay structure, then divide by eight.

IV. Overtime pay in the Philippines

A. Basic rule

Work performed beyond eight hours on an ordinary working day is paid at the employee’s regular wage plus at least 25% thereof for the overtime hours.

That means the overtime hourly rate on an ordinary day is:

Ordinary Day Overtime Hourly Rate = Hourly Rate × 1.25

B. Overtime on rest day or special day

If the overtime work is rendered on a day that already carries a premium, the overtime premium is not simply 25% of the basic hourly rate. The law generally requires an additional 30% of the hourly rate on said day.

That means the overtime computation is done using the already premium-adjusted rate for that day.

Examples:

on a rest day;
on a special non-working day;
on a regular holiday;
on a rest day that is also a holiday;
on a rest day that is also a special day.

So the practical method is:

identify the day type;
identify the first eight-hour rate for that day;
compute overtime hourly pay as that hourly rate × 1.30.

This point is often misunderstood. Payroll sometimes incorrectly applies 30% directly to the ordinary-day hourly rate. The more accurate legal method is to apply it to the hourly rate of the day in question.

V. Night shift differential

A. Legal window

Night shift differential generally applies to work performed between 10:00 p.m. and 6:00 a.m.

B. Rate

The statutory premium is not less than 10% of the employee’s regular wage for each hour of work performed during that period.

So:

NSD Hourly Premium = Applicable Hourly Rate × 10%

The phrase “regular wage” is important, but in actual payroll interaction, when night work also falls on a holiday, rest day, or overtime hour, the premium is ordinarily computed based on the rate legally applicable to that hour. In practice, the night differential attaches to the relevant hourly wage for the covered night hours.

C. NSD is separate from overtime

A worker who performs work from 10:00 p.m. onward is not automatically on overtime. NSD applies because the work is at night; overtime applies only if the work is beyond eight hours.

A worker may therefore be entitled to:

NSD only;
overtime only;
both NSD and overtime;
both NSD and holiday premium;
all three together.

VI. Holiday pay and holiday premium pay

The term “holiday pay” in the Philippines is used in two related but distinct senses:

Pay for an unworked regular holiday when the employee is entitled to 100% of daily wage even if no work is performed, subject to the usual conditions.
Premium pay for work performed on a holiday.

It is essential to distinguish between regular holidays and special days.

VII. Regular holidays

A. Unworked regular holiday

If the employee is entitled and does not work on a regular holiday, the usual rule is payment of 100% of the daily wage.

B. Worked regular holiday

If the employee works on a regular holiday within the first eight hours, the employee is entitled to 200% of the regular daily wage.

Equivalent hourly rate for first eight hours:

Regular Holiday Hourly Rate = (Daily Rate × 2.00) ÷ 8

C. Overtime on regular holiday

Hours worked beyond eight on a regular holiday are paid at an additional 30% of the hourly rate on that day.

Thus:

Regular Holiday OT Hourly Rate = Regular Holiday Hourly Rate × 1.30

Since the regular-holiday hourly rate is already 200% of the ordinary hourly rate, the overtime hour becomes:

Ordinary Hourly Rate × 2.00 × 1.30 = 2.60 times the ordinary hourly rate

D. Regular holiday falling on rest day

If the employee works on a regular holiday that also happens to be the employee’s rest day, the first eight hours are usually paid at 260% of the daily wage.

Equivalent hourly rate:

Regular Holiday on Rest Day Hourly Rate = (Daily Rate × 2.60) ÷ 8

If overtime is worked beyond eight hours:

OT Hourly Rate = that hourly rate × 1.30

This yields:

Ordinary Hourly Rate × 2.60 × 1.30 = 3.38 times the ordinary hourly rate

VIII. Special non-working days

Special days are not treated exactly like regular holidays.

A. Unworked special day

The common rule is no work, no pay, unless there is a favorable company policy, practice, contract, or collective bargaining agreement granting pay.

B. Worked special day

For work within eight hours on a special non-working day, the usual rate is 130% of the daily wage.

Equivalent hourly rate:

Special Day Hourly Rate = (Daily Rate × 1.30) ÷ 8

C. Special day falling on rest day

If the special day also falls on the employee’s rest day, the first eight hours are usually paid at 150% of the daily wage.

Equivalent hourly rate:

Special Day on Rest Day Hourly Rate = (Daily Rate × 1.50) ÷ 8

D. Overtime on special day

Overtime beyond eight hours on a special day is paid at an additional 30% of the hourly rate on said day.

So:

Special Day OT Hourly Rate = Special Day Hourly Rate × 1.30

This yields:

Ordinary Hourly Rate × 1.30 × 1.30 = 1.69 times ordinary hourly rate

If the special day is also a rest day:

Special Day + Rest Day OT Hourly Rate = Ordinary Hourly Rate × 1.50 × 1.30 = 1.95 times ordinary hourly rate

IX. Rest day premium apart from holidays

Work on a scheduled rest day, where the day is not also a holiday or special day, generally carries a 30% premium for the first eight hours.

So:

Rest Day Rate for First 8 Hours = Daily Rate × 1.30 Rest Day Hourly Rate = Hourly Rate × 1.30

Overtime beyond eight hours on a rest day:

Rest Day OT Hourly Rate = Rest Day Hourly Rate × 1.30 = Hourly Rate × 1.69

X. The interaction rule: how premiums stack

This is the heart of the subject.

The proper payroll sequence is usually:

Step 1: Determine the day classification

Ask first:

Is it an ordinary working day?
Is it a rest day?
Is it a regular holiday?
Is it a regular holiday that falls on a rest day?
Is it a special day?
Is it a special day that falls on a rest day?

This determines the base rate for the first eight hours.

Step 2: Determine whether the work is beyond 8 hours

If yes, compute overtime based on the hourly rate of that day classification.

Step 3: Determine which hours fall between 10:00 p.m. and 6:00 a.m.

For each such hour, add night shift differential.

Thus, the hourly compensation for a given hour may be:

ordinary hourly rate;
ordinary hourly rate + 10% NSD;
holiday hourly rate;
holiday hourly rate + 10% NSD;
holiday OT hourly rate;
holiday OT hourly rate + 10% NSD.

The law does not collapse these into one premium. They remain layered entitlements.

XI. Core statutory multipliers commonly used in payroll

Below are the standard multipliers commonly used for minimum legal compliance for covered private-sector employees.

A. First 8 hours

Ordinary day: 100%
Rest day: 130%
Special day: 130%
Special day on rest day: 150%
Regular holiday: 200%
Regular holiday on rest day: 260%

B. Overtime hourly multipliers

These are multipliers of the ordinary hourly rate:

Ordinary day OT: 1.25
Rest day OT: 1.30 × 1.30 = 1.69
Special day OT: 1.30 × 1.30 = 1.69
Special day on rest day OT: 1.50 × 1.30 = 1.95
Regular holiday OT: 2.00 × 1.30 = 2.60
Regular holiday on rest day OT: 2.60 × 1.30 = 3.38

C. Night shift differential

For each hour between 10:00 p.m. and 6:00 a.m.:

add 10% of the applicable hourly rate for that hour.

This means that if the applicable hourly rate is already a holiday rate or an overtime rate, the 10% is computed from that applicable rate for that hour.

XII. The formulas

Let:

DR = daily rate
HR = hourly rate = DR ÷ 8

Then:

Ordinary day

First 8 hours: HR × 1.00
OT hour: HR × 1.25
Night hour within first 8: HR × 1.10
Night OT hour: (HR × 1.25) × 1.10

Rest day

First 8 hours: HR × 1.30
OT hour: (HR × 1.30) × 1.30 = HR × 1.69
Night hour within first 8: (HR × 1.30) × 1.10 = HR × 1.43
Night OT hour: (HR × 1.69) × 1.10 = HR × 1.859

Special day

First 8 hours: HR × 1.30
OT hour: HR × 1.69
Night hour within first 8: HR × 1.43
Night OT hour: HR × 1.859

Special day on rest day

First 8 hours: HR × 1.50
OT hour: HR × 1.95
Night hour within first 8: HR × 1.65
Night OT hour: HR × 2.145

Regular holiday

First 8 hours: HR × 2.00
OT hour: HR × 2.60
Night hour within first 8: HR × 2.20
Night OT hour: HR × 2.86

Regular holiday on rest day

First 8 hours: HR × 2.60
OT hour: HR × 3.38
Night hour within first 8: HR × 2.86
Night OT hour: HR × 3.718

These are minimum statutory floors. A contract, CBA, or established company practice may grant higher rates.

XIII. Worked examples

Example 1: Overtime on an ordinary day

Daily rate: ₱800 Hourly rate: ₱100

Employee works 10 hours on a normal workday.

First 8 hours = ₱800
2 OT hours = 2 × (₱100 × 1.25) = ₱250

Total = ₱1,050

Example 2: Night differential on an ordinary day, no overtime

Daily rate: ₱800 Hourly rate: ₱100

Shift: 2:00 p.m. to 10:00 p.m. No night differential, because 10:00 p.m. is the end of shift.

If shift is 3:00 p.m. to 11:00 p.m., then 1 hour falls within 10:00 p.m. to 11:00 p.m.

First 8 hours basic = ₱800
NSD for 1 hour = ₱100 × 10% = ₱10

Total = ₱810

Example 3: Night differential with overtime on ordinary day

Daily rate: ₱800 Hourly rate: ₱100

Shift: 2:00 p.m. to 12:00 midnight

Breakdown:

First 8 hours: 2:00 p.m. to 10:00 p.m. = ₱800
2 OT hours: 10:00 p.m. to 12:00 midnight OT pay = 2 × (₱100 × 1.25) = ₱250
NSD for those 2 OT night hours = 2 × (₱125 × 10%) = ₱25

Total = ₱800 + ₱250 + ₱25 = ₱1,075

Another way: Each night OT hour = ₱100 × 1.25 × 1.10 = ₱137.50 2 hours = ₱275 Plus first 8 hours ₱800 Total = ₱1,075

Example 4: Work on a regular holiday, no overtime

Daily rate: ₱800 Hourly rate: ₱100

Employee works 8 hours on a regular holiday.

Holiday pay for work performed = ₱800 × 2.00 = ₱1,600

Total = ₱1,600

Example 5: Work on a regular holiday with overtime

Daily rate: ₱800 Hourly rate: ₱100

Employee works 10 hours on a regular holiday.

First 8 hours = ₱800 × 2.00 = ₱1,600
OT hourly rate = ₱100 × 2.60 = ₱260
2 OT hours = ₱520

Total = ₱2,120

Example 6: Regular holiday with night differential and overtime

Daily rate: ₱800 Hourly rate: ₱100

Shift: 4:00 p.m. to 2:00 a.m. on a regular holiday

Breakdown:

First 8 hours: 4:00 p.m. to 12:00 midnight Of these, 2 hours are night hours: 10:00 p.m. to 12:00 midnight
Overtime: 12:00 midnight to 2:00 a.m. = 2 hours, both night hours

Computation:

First 8 holiday pay = ₱1,600
NSD on 2 holiday night hours within first 8 = 2 × (₱100 × 2.00 × 10%) = 2 × ₱20 = ₱40
OT on holiday: 2 × (₱100 × 2.60) = ₱520
NSD on 2 holiday OT night hours = 2 × (₱260 × 10%) = ₱52

Total = ₱1,600 + ₱40 + ₱520 + ₱52 = ₱2,212

Example 7: Special day on rest day with overtime and NSD

Daily rate: ₱800 Hourly rate: ₱100

Shift: 6:00 p.m. to 4:00 a.m. The day is a special non-working day and also the employee’s rest day.

Breakdown:

First 8 hours: 6:00 p.m. to 2:00 a.m. Night hours within first 8: 10:00 p.m. to 2:00 a.m. = 4 hours
OT: 2:00 a.m. to 4:00 a.m. = 2 hours, both night hours

Computation:

First 8 hours = ₱800 × 1.50 = ₱1,200
NSD on 4 hours within first 8 = 4 × (₱100 × 1.50 × 10%) = 4 × ₱15 = ₱60
OT hourly rate = ₱100 × 1.95 = ₱195
2 OT hours = ₱390
NSD on 2 OT night hours = 2 × (₱195 × 10%) = ₱39

Total = ₱1,200 + ₱60 + ₱390 + ₱39 = ₱1,689

XIV. Double holidays and successive holidays

Sometimes two regular holidays fall on the same date by law or proclamation. In practice, this can create special computation issues. Historically, Philippine labor advisories have treated double regular holidays differently from an ordinary single regular holiday, often applying a higher multiplier for work performed and separate treatment for unworked pay entitlement. Because this area can turn on the exact holiday issuance and labor advisory for the year concerned, payroll should check the specific rule then applicable.

Where holidays are on successive days, the employee’s entitlement to holiday pay for the second holiday may depend on whether the employee was present or on leave with pay on the workday immediately preceding the first holiday, or on the holiday itself if the holidays are successive, under the implementing rules. In payroll disputes, these attendance qualifiers matter.

XV. Required work on holidays and overtime: management prerogative versus premium pay

An employer may, in proper cases, require holiday work or overtime work when legally justified, subject to the conditions of the Labor Code. But once the work is legally performed by a covered employee, the corresponding statutory premium must be paid. Employer necessity does not erase the premium.

Likewise, employees cannot simply waive statutory overtime, holiday, or NSD premiums in advance where the law makes them mandatory. A waiver of labor standards is generally looked upon with suspicion and may be invalid if it results in a reduction of minimum legal entitlements.

XVI. The role of company policy, CBA, and established practice

Philippine labor standards set the minimum. Employers may always grant more.

So while the law may require 10% NSD, a company may grant 15% or 20%. While the law may require 200% for a regular holiday, a CBA may provide more. While a special day is generally no-work-no-pay if unworked, the employer may voluntarily pay it.

Once a benefit becomes part of an established company practice and meets the legal tests for non-diminution, it may no longer be withdrawn unilaterally.

XVII. Monthly-paid versus daily-paid employees

A common confusion is whether monthly-paid employees are still entitled to holiday pay, overtime pay, or NSD.

The answer depends on the nature of the benefit:

Overtime pay and NSD are not eliminated simply because a worker is monthly-paid. If the employee is covered by hours-of-work rules, these remain due when earned.
For holiday pay, the payroll treatment of monthly-paid workers depends on how the monthly salary was structured and whether the holidays are already considered paid in the monthly equivalent. But work rendered on a regular holiday still requires the proper premium if the employee is covered.

Monthly salary is not a universal defense against premium pay claims.

XVIII. Piece-rate, task-based, and commission workers

Entitlement can become more complicated for employees paid by results, piece-rate, pakyaw, or commission. Some may still be entitled to certain labor standards if they are not genuinely exempt and are under employer control as to time and method of work. The legal label alone is not enough. Actual pay scheme and work arrangement must be examined.

For payroll compliance, employers should not assume that “commission-based” automatically means “not entitled to overtime or holiday premium.”

XIX. Meal breaks, waiting time, and compensable hours

Another frequent issue is whether the employee truly worked more than eight hours.

Not every hour spent in the workplace is necessarily compensable, but many are. If an employee is required to remain on duty, on standby under restrictive conditions, or continuing work through meal periods, those hours may count. An unpaid meal break is generally excluded only if it is a genuine off-duty period. If the employee continues working, the meal period may become compensable, potentially creating overtime liability.

This matters because many payroll disputes arise not from the legal rate but from undercounting the hours actually worked.

XX. Night shift differential: practical time-splitting

NSD only applies to the portion of work performed between 10:00 p.m. and 6:00 a.m.

Examples:

9:00 p.m. to 6:00 a.m.: NSD applies only from 10:00 p.m. to 6:00 a.m.
8:00 p.m. to 5:00 a.m.: NSD applies from 10:00 p.m. to 5:00 a.m.
10:00 p.m. to 7:00 a.m.: NSD applies from 10:00 p.m. to 6:00 a.m.; the 6:00 a.m. to 7:00 a.m. hour has no NSD, though it may still be overtime if beyond eight hours.

Payroll should therefore split the shift hour by hour if necessary.

XXI. Overtime must usually be actual work beyond 8 hours

NSD is hour-specific. Overtime is threshold-specific. A shift from 10:00 p.m. to 6:00 a.m. is an eight-hour shift with NSD, but not overtime. A shift from 10:00 p.m. to 8:00 a.m. is an eight-hour shift plus two overtime hours, with NSD only up to 6:00 a.m.

XXII. Holiday crossing midnight: which day governs

One of the hardest payroll questions is a shift that starts on one day and ends on another, such as 10:00 p.m. on the eve of a holiday until 6:00 a.m. on the holiday itself, or vice versa.

The legally sound payroll method is to classify the hours according to when they are actually worked. Hours worked before midnight may belong to the pre-holiday day type; hours worked after midnight may belong to the holiday day type. This can mean a single shift must be broken into segments with different multipliers.

Example: shift from 10:00 p.m. to 6:00 a.m., where midnight starts a regular holiday.

10:00 p.m. to 12:00 midnight: ordinary day night hours
12:00 midnight to 6:00 a.m.: regular holiday night hours

If the shift continues beyond the eighth compensable hour, the later hours may also become overtime, depending on the workday reckoning used by the employer consistent with law and policy. This is an area where payroll system design matters.

XXIII. Workday concept versus calendar day concept

Some payroll systems use a “workday” or “shift day” running from shift start, while legal holiday classification is tied to the actual calendar date of the holiday. To avoid underpayment, employers should ensure that payroll logic does not erase holiday premiums simply because a shift began before midnight. The safer legal approach is to credit the hours that actually fell on the holiday with the correct holiday premium.

XXIV. Rest day determination matters

A day only becomes “rest day” for premium purposes if it is the employee’s scheduled rest day under the work arrangement. This is why schedules must be documented. If the employer changes the rest day ad hoc without proper basis, disputes may arise over whether the premium should be 130%, 150%, 260%, or another rate.

XXV. Approval of overtime versus payment of overtime

Employers often require prior authorization before overtime may be rendered. As a matter of internal control, that is generally valid. But if the employer suffers or permits the employee to work beyond eight hours, the lack of prior written approval does not automatically defeat the wage claim. Labor standards focus on work actually performed with employer knowledge or acquiescence.

The remedy for unauthorized overtime is discipline where justified, not nonpayment for work already done.

XXVI. Computation reference point: daily rate or hourly rate

For accuracy, payroll should reduce the daily premium into hourly equivalents when only part of the day is affected.

Example: an employee works only 3 hours on a regular holiday. The computation should reflect the applicable holiday rate for those 3 hours, not necessarily a flat daily amount unless the payroll policy and facts justify otherwise.

The hourly method is indispensable for partial shifts, midnight crossings, and mixed classifications.

XXVII. Sample payroll grid

Assume daily rate of ₱800, hourly rate ₱100.

Situation	Hourly pay
Ordinary hour	₱100.00
Ordinary OT hour	₱125.00
Ordinary night hour	₱110.00
Ordinary night OT hour	₱137.50
Rest day hour	₱130.00
Rest day OT hour	₱169.00
Rest day night hour	₱143.00
Rest day night OT hour	₱185.90
Special day hour	₱130.00
Special day OT hour	₱169.00
Special day night hour	₱143.00
Special day night OT hour	₱185.90
Special day + rest day hour	₱150.00
Special day + rest day OT hour	₱195.00
Special day + rest day night hour	₱165.00
Special day + rest day night OT hour	₱214.50
Regular holiday hour	₱200.00
Regular holiday OT hour	₱260.00
Regular holiday night hour	₱220.00
Regular holiday night OT hour	₱286.00
Regular holiday + rest day hour	₱260.00
Regular holiday + rest day OT hour	₱338.00
Regular holiday + rest day night hour	₱286.00
Regular holiday + rest day night OT hour	₱371.80

This kind of matrix is useful in payroll manuals and legal compliance reviews.

XXVIII. Common legal and payroll mistakes

1. Treating NSD as included in overtime

Wrong. They are separate.

2. Applying OT first, then forgetting the day premium

Wrong. OT on a holiday or rest day is based on the hourly rate of that day, not merely on the ordinary hourly rate.

3. Paying only the holiday premium but not NSD for holiday night hours

Wrong. If the holiday work falls between 10:00 p.m. and 6:00 a.m., NSD is still due.

4. Paying only first 8 holiday hours at 200% and computing OT as ordinary OT

Wrong. OT on a regular holiday is 30% more than the holiday hourly rate.

5. Ignoring partial hours across midnight

Wrong. Work should be segmented by time actually worked.

6. Assuming monthly salary already covers overtime

Wrong, unless the employee is lawfully exempt or there is a valid and lawful arrangement that still satisfies minimum standards.

7. Assuming all supervisors are exempt

Wrong. Exemption depends on actual duties and legal tests, not title.

8. Requiring employees to sign waivers

Generally ineffective against minimum labor standards.

XXIX. Evidence in labor claims

In disputes involving unpaid overtime, holiday pay, or NSD, the central evidence usually includes:

DTRs or biometric logs;
schedules and rest day rosters;
payslips and payroll registers;
holiday notices and work advisories;
overtime authorizations;
company handbook and payroll policies;
CBA or employment contract.

Where employer records are incomplete, ambiguities often weigh against the employer, who bears the statutory duty to keep proper payroll and time records.

XXX. Prescription of money claims

Money claims arising from employer-employee relations, including underpayment of overtime, holiday pay, and night differential, are generally subject to the Labor Code prescriptive period for money claims. Delay in filing can therefore bar part or all of a claim. This is a rights-enforcement issue separate from the merits of the computation.

XXXI. Tax treatment and statutory deductions

Premium pays are still compensation income unless a specific tax rule provides otherwise. Payroll must also consider SSS, PhilHealth, Pag-IBIG, and withholding rules where applicable. These questions, however, are separate from the employee’s gross legal entitlement under labor standards. The labor computation comes first; tax and deductions come after, subject to the governing tax and social legislation.

XXXII. Compressed workweek and alternative work arrangements

In some valid compressed workweek arrangements, employees may work more than eight hours in a day without traditional overtime liability, depending on the arrangement and approval framework, because the excess hours are meant to offset a shorter workweek. But the arrangement must be lawful and properly implemented. It cannot be used as a disguise to avoid statutory premiums. Also, night differential and holiday-related pay issues may still arise depending on the shift and day worked.

XXXIII. Legal hierarchy: minimum standards versus better benefits

When the law, contract, CBA, handbook, and company practice all interact, the controlling rule is usually the one more favorable to labor, so long as it is valid and enforceable. The Labor Code sets the floor, not the ceiling.

Thus:

if law says 10% NSD but CBA says 20%, use 20%;
if law says special day unworked is no pay but company handbook says paid special day, follow the better grant;
if the company has consistently paid a higher multiplier over time, non-diminution issues may arise if it tries to reduce it.

XXXIV. Compact guide to minimum Philippine computations

Using HR = Daily Rate ÷ 8:

Ordinary day

First 8 hours: HR
OT: HR × 1.25
NSD: Applicable hour × 10%

Rest day

First 8: HR × 1.30
OT: HR × 1.69
NSD night hours: add 10% of applicable rate

Special day

First 8: HR × 1.30
OT: HR × 1.69

Special day on rest day

First 8: HR × 1.50
OT: HR × 1.95

Regular holiday

First 8: HR × 2.00
OT: HR × 2.60

Regular holiday on rest day

First 8: HR × 2.60
OT: HR × 3.38

For any hour between 10:00 p.m. and 6:00 a.m., add:

10% of the applicable hourly rate for that hour

XXXV. Final legal synthesis

Philippine overtime, night differential, and holiday pay rules are best understood as a layered premium system.

Start with the employee’s coverage under hours-of-work rules.
Identify the day classification: ordinary day, rest day, special day, regular holiday, or combinations.
Compute the first eight hours based on that day’s statutory premium.
Compute overtime for hours beyond eight by adding 30% of the hourly rate on that day, or 25% on an ordinary day.
Add night shift differential of at least 10% for each hour between 10:00 p.m. and 6:00 a.m.
Apply any more favorable company, contractual, or CBA provisions.
Preserve records, because correct legal entitlement often turns on the actual hours and day classification.

The most important practical rule is this: holiday premium, overtime premium, and night shift differential are cumulative when their factual conditions all exist. One does not cancel the others. In Philippine labor standards, the employee must be paid for each legal character of the work actually performed.

That is the controlling principle behind proper computation.