Why Your Final Pay Withholding Isn't Just Your Usual Monthly Rate: BIR's Annualization Rule on Resignation

When an employee resigns or is otherwise separated before December 31, their employer doesn’t simply apply the usual per-payroll withholding rate to the final paycheck — it must annualize the tax, recomputing the total income tax due on the employee’s cumulative compensation for the year as of the last day worked. This is why a final paycheck’s withholding tax can look larger (a deficiency collected) or smaller (an excess refunded) than a routine month’s withholding, under Revenue Regulations (RR) No. 2-98, Section 2.79(B).

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What actually happens to withholding tax when someone resigns mid-year? #

The employer treats the last payment of wages the same way it would treat the ordinary year-end annualization for a continuing employee — just done early, on the employee’s actual last day rather than waiting for December. For a continuing employee, an employer normally waits until the final payroll of the calendar year to true up withholding: total taxable compensation for the whole year is computed, the tax due on that total is calculated using the graduated tax table, and that figure is compared to everything already withheld payroll by payroll. Whatever the difference is — usually small, from rounding across the year — gets collected or refunded in that last December payroll.

RR No. 2-98, Section 2.79(B) requires the same recomputation to happen as of a separating employee’s actual last payment of wages, because their compensation for the year effectively stops accumulating once they leave. As tax practitioner summaries of the rule describe it, the taxable regular and supplementary compensation used in the computation is the amount paid since the beginning of the current calendar year up to the termination of employment — not a full year’s worth, since the year hasn’t finished, but everything actually paid up to that point.

How does a two-employer year factor in? #

If the separating employee had a prior employer earlier in the same calendar year, the current employer’s annualized computation must include that prior compensation and withholding too — not just what it paid. The employee surrenders the BIR Form 2316 issued by their previous employer, and the current employer folds those figures into the cumulative computation, so the annualized tax due reflects the employee’s true combined income for the year, not an artificially low figure based only on the current employer’s shorter period of employment.

This is also why BIR Form 2316 for Resigned or Separated Employees requires issuance within 30 days of separation, not the standard January 31 deadline — the certificate the departing employee receives needs to reflect this same annualized computation promptly, both to support their own return if they don’t qualify for substituted filing, and to give a new employer the correct starting figures for the balance of the year.

Worked example: a mid-year resignation with a withholding deficiency #

An employee who resigns in August after receiving a large mid-year bonus can end up owing additional tax on their final pay, even though every individual payroll withheld correctly at the time.

An employee earning ₱50,000 monthly resigns effective August 31, having received a ₱100,000 mid-year performance bonus in June that was withheld using the standard supplementary compensation method rather than a full annualized recompute:

The employer performs this comparison as of the August 31 separation date rather than waiting until December, collects any deficiency from (or refunds any excess in) the final pay, and issues BIR Form 2316 reflecting the annualized figures within 30 days.

Frequently asked questions #

Why does an employee’s final pay sometimes have a different withholding amount than a normal payroll? #

Because when employment ends before December 31, the employer must recompute the total income tax due on all taxable compensation paid since the start of the calendar year, compare it to tax already withheld, and collect any deficiency or refund any excess through the final pay, under RR No. 2-98, Section 2.79(B).

What is annualized withholding tax computation? #

It recalculates an employee’s total tax due on cumulative taxable compensation using the applicable tax table, then compares that to tax actually withheld so far. For a separating employee, this happens as of their last day rather than at year-end.

Does this annualization use a different tax table than the monthly withholding table? #

No — it applies the same graduated income tax rates, just computed on a compressed, year-to-date basis.

What happens if an employee had a previous employer earlier in the same year? #

The current employer includes the compensation and tax withheld shown on the BIR Form 2316 surrendered by the employee from their prior employer, so the computation reflects true combined compensation for the year.

When must BIR Form 2316 be issued to a separated employee? #

Within 30 days of separation, reflecting the annualized computation performed as of the last payment of wages.

Summary #

A resigning employee’s final pay withholding is recomputed through annualization under RR No. 2-98, Section 2.79(B) — total year-to-date compensation is tested against total tax already withheld, with any deficiency or excess settled in the final paycheck. See BIR Form 2316 for Resigned or Separated Employees and Year-End Withholding Tax Adjustment for the related certificate deadline and the standard year-end version of this same computation.