A federal salary number by itself understates total compensation more than almost any private-sector offer — the benefits package is substantial, and comparing base pay alone will lead you to undervalue a federal offer. Here’s a rough sense of what the major benefits are actually worth.
Retirement: FERS (this is the big one)
Federal employees hired in recent years are covered by the Federal Employees Retirement System, which has three parts:
- A defined-benefit pension — a guaranteed monthly payment in retirement based on years of service and salary, something increasingly rare in the private sector. This alone is commonly estimated to be worth somewhere in the range of 10–15% of salary in present value, though the exact figure depends on your age, years of service, and retirement timing.
- Social Security — federal employees pay into and receive Social Security like most private-sector workers.
- The Thrift Savings Plan (TSP) — essentially a 401(k) equivalent, and the government automatically contributes 1% of your salary even if you contribute nothing, then matches your own contributions up to an additional 4% (for a total of up to 5% employer contribution if you contribute at least 5% yourself). That match alone, at 5% of a moderate federal salary, is real money that many private-sector employers don’t match.
Health insurance (FEHB)
The Federal Employees Health Benefits program offers a wide range of plan choices, with the government typically covering roughly 70–75% of the premium. Federal health plans are generally considered solid relative to private-sector offerings, and — notably for career planning — FEHB coverage can often continue into retirement, which is a meaningfully different proposition than most private employer health coverage.
Leave
Federal employees earn both annual (vacation) and sick leave, accruing at increasing rates with tenure, plus 11 paid federal holidays per year. Combined, this is generally more generous than the private-sector average, particularly for employees who haven’t been at their employer long enough to earn seniority-based vacation increases elsewhere.
Job security and predictability
This one’s harder to put a precise dollar figure on, but it’s real: federal employment (outside of politically appointed or probationary positions) has historically involved significantly more job security than at-will private employment, along with predictable, transparent pay progression through the GS step system rather than discretionary annual raises.
Putting it together
When you’re comparing a federal offer’s GS salary to a private-sector offer, a reasonable rule of thumb many career advisors use is to mentally add somewhere in the range of 20–30% to the federal base salary to account for the pension, TSP match, and superior health/leave benefits — the exact number depends heavily on your personal circumstances (how long you plan to stay, your age, your health needs), but the base salary number alone significantly understates what the job is actually worth.
The caveat
None of this is financial advice specific to your situation — the value of any benefit depends on your age, health, family situation, and career plans. But if you’re weighing a federal offer against a higher-base-salary private offer and stopping the comparison at the salary line, you’re very likely undervaluing the federal side of the equation.