Why Your PTO Balance Didn't Match What HR Showed
A mismatch usually comes from a recent PTO request not yet being reflected in a personal calculation, a rounding or accrual-timing difference between a simple per-period estimate and the employer's exact accrual schedule, or a carryover cap that limits how much unused PTO rolls over from the previous year, capping the balance below what continuous accrual alone would suggest.
A discrepancy between a manually estimated PTO balance and an official HR figure is common and usually traceable to one of these specific, checkable causes.
Recent requests not yet reflected
A PTO request submitted but not yet reflected in a personal running calculation (or vice versa, approved but not yet deducted in the HR system depending on timing) can cause a temporary mismatch — checking the specific date both figures were last updated often resolves an apparent discrepancy.
Accrual timing and rounding differences
A simple per-pay-period estimate (as covered in the accrual guide) can differ slightly from an employer's exact accrual schedule, which might accrue on a slightly different timing or round to a different precision — small discrepancies from this source are usually minor and self-correcting over time.
A carryover cap
Many PTO policies cap how much unused time can roll over from one year to the next — a personal calculation that doesn't account for this cap can overestimate the actual balance if it assumes uncapped accumulation across multiple years, when the employer's actual policy limits the maximum carryover.