One rule decides it, and it is printed in every announcement you have ever read. Here is how to find it, how education changes it, and why the rank conversion chart you were sent is not a hiring document.
Almost everything people believe about GS grades is noise. Rank charts. Years-of-experience rules of thumb. The idea that a degree buys you a grade, or that a job title does. The real rule is short, it is public, and it sits in the Qualifications section of every announcement on USAJOBS.
Your occupational series sets the grade rules, not you. Every series has an OPM qualification standard behind it. At GS-5 and above, that standard almost always asks for the same thing. You need one year of specialized experience equivalent to at least the next lower grade level, in the normal line of progression for that work.
That one sentence carries the whole page. For GS-12 you need a year of work equivalent to GS-11. For GS-9 in a two-grade-interval series you need a year equivalent to GS-7. There is no seniority test. No total-career-years test. No title test.
OPM is clear about what that year buys you. If you have the year of appropriate specialized experience, the standard doesn't also require general experience, education above high school, or extra specialized experience. If the year is there, the grade is open — degree or no degree.
The header. Series and grade sit at the top of every posting. "0343-09" is the Management and Program Analysis series at GS-9. 2210 is IT. 1811 is investigations. That four-digit code is the family the standard belongs to, and it is the best thing you can search on.
The Qualifications section. Inside Requirements, the part that decides your fate is Specialized Experience. A good one does three things at once. It names a grade level. It says one year. It lists the tasks that count. All three matter, and the tasks are the part people skim.
The multi-grade posting. Announcements often advertise two or three grades at once — GS-9/11/12. When the posting shows no promotion potential, each grade is filled separately. So one announcement is really several jobs, and you get considered at the grades your experience supports.
The agency contact. Every announcement lists an HR specialist at the bottom. If you truly can't tell which grade a statement is describing, that is a fair thing to ask before the closing date.
Equivalent means equal in level of work. Scope, complexity, how much you did on your own, and what happens if you get it wrong. It doesn't mean you held a GS job. Work at a company, at a contractor or in uniform gets held against the same description. HR reads the description, not the employer's name or the title on your badge.
Two mechanics decide whether that year even counts:
This page is about whether you have the specialized experience. Writing it up so an HR specialist can find it in six seconds is a different craft, and it lives in the federal resume format guide.
Education is a real second route into a grade. It runs out earlier than most people expect. Here is OPM's table of the education that can qualify you on its own:
Superior Academic Achievement. This is what turns a bachelor's into GS-7 eligibility, and there are three routes to it. Standing in the upper third of your graduating class. Membership in a qualifying national honor society. Or a grade-point average of 3.0 or higher, figured over four years or over your last two — 3.5 or higher when it is figured on the required courses in your major. The credit has to come from a curriculum that fits the job being filled.
Experience and education combined. When neither one is complete on its own, they can often be added together. Only the graduate education above what the next lower grade already required counts toward the total. Half the experience plus half the surplus education makes a whole. The announcement says whether that option is open for that job.
The practical shape of all this: below GS-11, a transcript can carry you. From GS-12 up, and flat out from GS-13 up, the only currency is work you have actually done.
Search "military rank to GS grade" and you get a dozen sites running the same conversion table. E-7 equals this, O-3 equals that. It spreads because it looks official. Part of it is official — just not for this.
The chart's actual job. That military-and-civilian equivalent grades table comes out of protocol material. The version most often reposted is from the Navy's Social Usage and Protocol Handbook, hosted by the Naval History and Heritage Command as "Comparison of Military and Civilian Equivalent Grades." Tables like that exist to settle order of precedence. Who sits where at an official dinner. Who gets which courtesies at a ceremony. Whose name is read in what order. It is a table about honors and manners.
What it is not. OPM publishes no military-rank-to-GS conversion, and no HR specialist rates an application against one. The General Schedule and the military pay grades are two separate systems built on two separate laws. Nothing turns a rank into a qualification.
What HR compares instead. The specialized experience statement, held against your documented duties. That is why two people who wore the same rank for the same years can qualify two grades apart. A senior NCO who ran a multi-million-dollar supply program and led thirty people has a very different record from one who spent those years in a narrow staff billet. The record gets read, not the rank.
None of that makes military experience weak. It is often the strongest evidence a candidate has. Military work is documented, dated and measurable, which is exactly what a specialized experience statement asks for. It just converts through duties, one announcement at a time, instead of through a chart.
These two get mixed up more than anything else on this page, and they are not related. Specialized experience asks whether you have done the work. Time-in-grade asks how long you have held your current grade.
Who time-in-grade covers. It applies when someone is moving up into a competitive-service General Schedule job and held a General Schedule position under a nontemporary appointment in the past 52 weeks. In plain terms: people already inside the federal system. Someone applying from outside is not covered.
What it requires. Fifty-two weeks. Moving up to GS-12 and above takes 52 weeks in a position no more than one grade lower. Moving up to GS-6 through GS-11 takes 52 weeks in a position one or two grades lower. Which one depends on whether the work is classified at one-grade or two-grade intervals. Up to GS-5 there is no time restriction, as long as you stay within two grades above the lowest grade you held in the past year.
The exclusions. The rule doesn't attach to selection from a competitive examination register or under direct hire authority. It doesn't attach to a grade you already held under a nontemporary appointment. It doesn't attach to a move from a non-General-Schedule job when you had no General Schedule service in the prior year, or after service that was all temporary. Direct hire is the exclusion most people can use on purpose, and the doors it belongs to are in the hiring authorities guide.
The difference, stated once. Time-in-grade is a ceiling on how fast a current federal employee can move up. Specialized experience is the bar every applicant clears to be qualified at all. Serving the 52 weeks doesn't make you qualified. Being qualified doesn't release an inside candidate from the 52 weeks.
The whole exercise is four steps and takes an afternoon.
The most common wasted application. Applying a grade or two above your ceiling. HR screens minimum qualifications before it looks at anything else, so the application ends at the first gate. The email that follows says the specialized experience requirement was not met. It reads like a verdict on you. It is a verdict on the arithmetic. Decoding the "not referred" notice covers what each version of that message is telling you, including the ones that have nothing to do with your qualifications.
The mirror-image mistake. Applying only at the safe bottom of the band. Nothing in federal hiring rewards under-shooting. There is no penalty for being found qualified at a grade you didn't get, and grades compound.
The grade you are hired at is often not the grade you end at, and the announcement says which. Promotion potential is the highest grade a job automatically promotes to. A GS-13 with promotion potential to GS-15 becomes a GS-14 after 52 weeks, then a GS-15 after another 52. No reapplying, no competing. That is a full grade each time, not a step. Where promotion potential reads "None," the grade is where you stay, and you climb steps instead.
Steps and grades move at very different speeds. Each grade is worth roughly 20% more pay, around $19,000. Each step inside a grade is worth about 3%, around $3,000. Steps come with time, automatically: yearly through step 4, every two years through step 7, every three years to step 10. Your paycheck is base pay plus locality pay, so the same grade is worth more in an expensive metro.
In the Washington, DC area, 2026 step 1 pay runs $57,736 at GS-7 and $70,623 at GS-9. It runs $85,447 at GS-11, $102,415 at GS-12 and $121,785 at GS-13. At the top, GS-14 pays $143,913 and GS-15 pays $169,279. Locality tables for other areas come out every year.
Which is why the math sometimes favors the lower posting. A GS-9 with promotion potential to GS-12 reaches GS-12 in about two years. A GS-11 with no promotion potential is a GS-11 until you win another announcement. The ladder is usually worth more than the starting grade. And it is a line in the Overview section that most applicants skip right past.
Knowing your grade is the front half of the problem. The back half is getting your application past the screen that checks it. Then getting it into the less crowded lanes, where fewer people stand between you and a hiring manager.
All of that is in the free USAJOBS Playbook. It covers how to read an announcement end to end, the resume format HR is looking for, the questionnaire, and every hiring path most applicants leave on the table. It costs nothing, and it is the same process I ran from a $40,000 help desk job to GS-14. More about that on my background.
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