Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Find years of service and your next work anniversary date.
5 years
This calculator finds your exact years of service from a hire date (as of today or any other date), plus the date of your next upcoming work anniversary -- useful for HR milestone tracking, vesting schedules, or just knowing when your next anniversary lands.
Enter your hire date and, optionally, an "as of" date other than today. The result shows completed years of service and the date and days-until of your next anniversary.
Years of service = the number of full 12-month periods completed since the hire date (not just calendar-year subtraction -- it checks whether this year's anniversary date has already passed). The next anniversary is the hire date's month/day in the current (or next) year, whichever is soonest in the future.
Hired March 15, 2020, as of January 1, 2026: 5 years of service (the 2026 anniversary hasn't happened yet).
For a general milestone anniversary (not specific to employment), see the Anniversary Calculator.
Suppose someone was hired on June 10, 2019 and you check as of June 9, 2026. The anniversary in 2026 has not yet occurred, so the tool shows 6 years of service, and the next anniversary is June 10, 2026, 1 day away. Check the same person on June 10, 2026 and the result is 7 years of service, with the next anniversary one year later on June 10, 2027, 365 days away. The dates are hypothetical, but they show the rule: the anniversary counts on the day itself.
An employee hired on February 29 raises a fair question about when the anniversary falls in non-leap years. The tool builds the anniversary date from the same month and day in the target year and uses February 28 in a year without a leap day. Your HR policy may instead treat March 1 as the anniversary, so if a benefit hinges on that date, confirm the rule with your employer.
The output is whole completed years plus the next anniversary and days until it. It does not break tenure into months and days. If a program uses 90 days, 6 months, or 18 months rather than whole years, use a general date difference or anniversary calculator to measure that span instead. This is a common need for probation periods and benefit waiting periods.
Companies often tie perks such as extra vacation, service awards and retirement plan vesting to years of service. To plan for one, set the as-of date to the target milestone date and confirm the years shown is what you expect. Vesting schedules and their exact counting rules, including breaks in service and rehire credit, are defined in your plan documents and by law, so check them with your plan administrator or HR rather than relying on this simple count.
If your HR system shows a different number of years, compare the hire date it has on file. Differences usually come from a different start date, a rehire that reset the count, or a leave of absence treated differently. The calculator counts calendar time since the hire date and does not subtract unpaid leave or gaps.
Managers can enter each team member's hire date to plan recognition in advance using the days-until figure for the next anniversary, rather than discovering the date after the fact.
Because that overcounts until the anniversary date has actually occurred this year -- someone hired in November has completed fewer full years than someone hired in January of the same year, even though the calendar-year subtraction would treat them the same.
The next anniversary shown will be one year from today, since today's anniversary is the "current" one, not the "next" one.
Yes -- change the "as of" date to any future date to project years of service as of that point.
In years without a leap day, the anniversary date computed by the tool is February 28. Your employer may use March 1 instead, so confirm the policy for benefits tied to the date.
No. It counts calendar time from the hire date only. Any adjustment for leave or rehire credit is governed by your employer's policy.
No, it shows completed years, the next anniversary date and days until it. Use a general date difference tool for a months and days breakdown.
Reference: U.S. Department of Labor