Formulas, boundaries and tests

Overtime Calculation Methodology

The source-dated sequence used to define time boundaries, build the regular rate, classify hours, and keep wage and deduction estimates separate.

Sources reviewed
August 27, 2026
Engine
1.0.0
Coverage
Federal + California general rules

What the method can answer

Wage path
Estimated gross earnings from daily time entries and supported pay components.
Deduction path
Estimated qualified overtime compensation after filing-status, cap, and MAGI limits.
Not calculated
Take-home pay, withholding, payroll tax, a refund, damages, or tax savings.

The method assumes a nonexempt worker subject to the selected general rule. It does not decide exemption, employee classification, legal work time, or whether a payment meets a statutory exclusion. A missing fact that changes the formula stops the estimate.

Define the workweek and workday

Overtime is evaluated in fixed workweeks, not averaged across a month or pay period. The workweek start—and, for California, the workday start—must be known before hours are classified. Negative, duplicated, non-finite, or ambiguous entries are rejected instead of silently repaired.

Current boundary limit The interface aggregates entries by date rather than storing shift timestamps. Workweek and workday boundaries must therefore use the same local time; a schedule that needs hours split across different boundaries requires record-level verification outside this interface.

Build the regular rate

regular rate = included workweek remuneration ÷ hours worked

The regular rate can differ from the base hourly rate. Straight-time earnings at multiple rates and shift differentials are combined from actual earnings—not by selecting the last or highest rate. Under the supported federal path, included nondiscretionary bonuses and commissions can also change the numerator after allocation to the correct earning period.

A label such as “discretionary” does not prove a statutory exclusion. Unknown inclusion or allocation treatment stops the regular-rate calculation. California estimates with included bonuses or commissions remain blocked because that recalculation method is not automated in this engine version.

Classify hours without stacking

Federal general rule

Hours actually worked beyond 40 in one workweek are federal overtime. Paid leave and other non-worked hours do not automatically count toward the threshold. Alternative federal regimes, including healthcare 8-and-80 and public-safety periods, are outside this method.

California general rule

For a covered worker, the method considers hours beyond eight and up to twelve in a workday at one and one-half times, hours beyond twelve at two times, weekly hours beyond 40, and the separate seventh-consecutive-day thresholds.

One hour receives one controlling classification even when daily, seventh-day, and weekly tests overlap. California exceptions, alternative workweeks, collective bargaining rules, and occupation-specific rules are not folded into the general calculation.

Calculate gross pay and paid premium

Base earnings for every worked hour are counted once. When base earnings are already included, a one-and-one-half-times hour generally adds a one-half-times premium and a two-times hour adds a one-times premium. Gross pay combines base earnings, supported included compensation, and the applicable premium.

PayClocked displays base earnings, the extra paid premium, and total gross pay separately. “Compensation attached to overtime hours” can include base pay as well as the extra premium; that broader amount must not be confused with the federal deduction candidate.

Isolate the FLSA-qualified premium

FLSA hours over 40 × 0.5 × federal regular rate

Current IRS guidance ties qualified overtime compensation to the premium required by section 7 of the FLSA—not every dollar labeled overtime. California-only daily overtime before the federal weekly threshold can increase gross pay without increasing the derived qualified amount. A double-time or contractual premium can also exceed the federal minimum.

An employer-reported qualified amount and a timesheet-derived amount stay separate. A mismatch is a warning to investigate, not permission to overwrite the reported number automatically.

Apply deduction limits

Cap
$12,500 for an eligible non-joint filer; $25,000 for married filing jointly.
MAGI threshold
$150,000, or $300,000 for married filing jointly.
Reduction
$100 for each full $1,000 above the applicable threshold under the reviewed method.
Floor
The result cannot fall below zero; MAGI exactly at the threshold has no reduction.

A married person must file jointly to claim the deduction under the reviewed material. The calculator asks only for confirmation of a valid Social Security number requirement, never the number itself. The 2025 path follows the reviewed Schedule 1-A and Form 1040 instructions; the 2026 path is an estimate based on current IRS guidance and reporting references.

The deduction does not remove overtime from gross wages and does not by itself eliminate withholding, Social Security, Medicare, or employment taxes. California does not conform to this federal deduction under the reviewed FTB material, so no California tax saving is inferred.

Precision and public checks

Intermediate values retain decimal precision; money is rounded for display. A payroll system that rounds an earlier component can differ by a few cents. The method shows that difference instead of truncating an intermediate value merely to match an example.

  • $20 × 50 hours under the federal general rule produces $1,000 base earnings, a $100 extra premium, and $1,100 gross pay.
  • Exactly 40 worked hours produces no federal overtime under the general weekly rule.
  • Single-filer MAGI of $150,000 produces no phase-out; $151,000 reduces the available amount by $100 under the reviewed 2025 method.
  • California-only daily overtime before 40 federal hours does not create a derived FLSA premium for those hours.
  • A two-times paid premium is not treated wholly as qualified federal overtime compensation.

Canary tests inspect representative requests, browser storage, history, console, caches, and unrequested exports for calculator values. A configuration change to measurement, advertising, hosting, or error reporting requires the same privacy boundary to remain true.

Cases outside coverage

The method does not automate exempt-status tests; salary, piece-rate, day-rate, or fluctuating workweek methods; healthcare, public-safety, compensatory-time, or agricultural special regimes; alternative California workweeks; collective bargaining; prevailing wage or public works; meal, rest, travel, on-call, rounding, or off-the-clock disputes; minimum wage, penalties, damages, interest, limitations periods; other states; or a full tax return.

Stop the estimate for those facts. Consult the relevant DOL or state agency, actual payroll records, and a qualified professional. The official source register contains the documents underlying the supported rules.