When a federal workforce shrinks, one of two machines does the cutting, and they are not interchangeable. Voluntary separation — deferred resignation offers, voluntary early retirement authority, and voluntary separation incentive payments — removes people who choose to leave, typically the most mobile employees with the best outside options. A reduction in force under 5 CFR 351 removes people by formula, from the bottom of retention registers built on tenure, veterans' preference, service length, and performance. The Office of Personnel Management's guidance on both tools, sharpened by the deferred-resignation programs of 2025, makes the trade explicit: buyouts are fast and quiet but untargeted; RIFs are slow, documented, and legally contestable, but they can be aimed at specific functions.
How the voluntary side works
The established toolkit runs through OPM authority. Voluntary Early Retirement Authority lets an agency offer immediate annuities to employees above minimum age and service thresholds, usually during restructuring or RIFs; Voluntary Separation Incentive Payments — buyouts, historically up to $25,000 — sweeten the exit. The 2025 deferred-resignation programs added a different shape: continued pay and benefits for a fixed period in exchange for a resignation commitment, structured around paid administrative leave rather than an annuity. Every variant shares two properties. Participation is voluntary, which removes most litigation risk. And the agency cannot choose who takes it — a buyout offer open to a whole directorate loses exactly the people who can most easily get hired elsewhere, which is why OPM's own guidance has long warned agencies to pair incentives with functional planning rather than treat them as savings in themselves.
How the involuntary side works
A RIF is a data exercise with legal teeth. The agency defines the competitive area, builds retention registers, and applies the four retention factors: tenure group, veterans' preference within tenure, length of service including military credit, and performance ratings averaged over specified cycles. Employees reached can bump or retreat to positions they hold rights to, which is why real RIFs take months of position mapping before the first notice goes out. Notice periods — 60 days for competitive-service RIFs, per 5 CFR 351.801 — and full MSPB appeal rights follow. The payoff for the agency is precision: unlike a buyout, a RIF can abolish a specific function and the specific positions attached to it, with retraining and reassignment rights running through the process rather than around it.
What the mix reveals
The composition of a downsizing tells you its real goal. Buyout-heavy programs maximize speed and minimize conflict, at the cost of losing high-mobility staff and paying salary for months of reduced output. RIF-heavy programs maximize structural control — and generate the document trail that courts, the MSPB, and the Government Accountability Office audit afterward. Programs that combine them, using incentives to thin the register before a RIF lands, get both costs. What no mix escapes: severance obligations under 5 CFR 351 and 550, unemployment insurance charges, and the rehiring costs documented in GAO workforce reviews whenever separated functions turn out to be statutorily required.
What to watch in any announcement
Ask three questions of every workforce-reduction announcement. Who is eligible to volunteer — the whole agency, or named functions? What happens to positions vacated — abolished, or frozen and refilled? And is a RIF expressly reserved as the backstop if targets are missed? Precise answers to those three questions predict how the reduction lands better than any headline number.
FAQ
What is a deferred resignation?
An agreement in which an employee commits to resign in exchange for pay and benefits continuing for a fixed period — a voluntary tool distinct from both early retirement and reduction in force.
Who is released first in a RIF?
Employees at the bottom of the retention register for their competitive area: shortest tenure, least veterans' preference, lowest average performance ratings, with bumping and retreat rights layered on top.
Can a buyout program target specific offices?
Eligibility can be limited by function or location, but it cannot choose individuals — whoever accepts leaves, which is the built-in selection problem OPM guidance warns about.
For more context, read Probationary Periods: The Two-Year Clock That Decides Federal Careers.
For more context, read pendleton act 1883.
For more context, read Government Shutdowns: What They Actually Cost.