Back to guides
Retirement & benefits

FERS vs TSP: federal retirement from Puerto Rico

Updated: September 5, 202612 min read

FERS and TSP are not the same, and confusing them is costly

Many people working for the federal government use the two words as synonyms. They are not, and the difference decides how much money you end up with.

**FERS** is the complete retirement system for federal civilian employees, and it stands on three legs: a defined-benefit **pension** the government pays, **Social Security**, and the **TSP**. The **TSP** (Thrift Savings Plan) is only the third leg: an individual defined-contribution account, the federal equivalent of a 401(k).

The first two legs walk on their own: money is deducted and, if you meet the age and service requirements, you collect. The third depends on your decisions, and it is the only one where you can leave money on the table without noticing.

If you work for the VA in San Juan, at Fort Buchanan, at the IRS or at any federal agency on the island, this applies to you exactly as it does to a federal employee in Texas. Social Security is paid in Puerto Rico exactly the same, so all three FERS legs work here in full.

What gets deducted: it depends on the year you started

This is the fact almost nobody explains in Spanish, and it produces awkward conversations in the office: two colleagues with the same job and the same salary can have completely different retirement deductions, and both are correct.

The statute (5 U.S.C. § 8422) does not set the deduction directly. It sets an **applicable percentage** and then **subtracts** the current Social Security rate, the 6.2% in section 3101(a) of the federal Internal Revenue Code. What remains is what comes out of your check for the pension:

  • **«Classic» FERS**, if you were already a covered federal employee as of December 31, 2012, or already had 5 years of creditable service: applicable **7%**, minus 6.2%, equals **0.8%** of your basic pay.
  • **FERS-RAE** (*revised annuity employee*), if you started between January 1 and December 31, 2013 without those 5 prior years: applicable **9.3%**, minus 6.2%, equals **3.1%**.
  • **FERS-FRAE** (*further revised annuity employee*), if you started after December 31, 2013 without those 5 prior years: applicable **10.6%**, minus 6.2%, equals **4.4%**.
  • **Federal law enforcement officers, federal firefighters and air traffic controllers** pay more in each category, because their pension is also better: applicable 7.5%, 9.8% and 11.1% respectively; that is **1.3%**, **3.6%** and **4.9%** after subtracting Social Security.

You pay five times more for the same pension

And here is what is worth knowing before you sign: the person paying 4.4% **does not get a better pension** than the one paying 0.8%. The computation formula is the same for all three groups. What changed in 2012 and 2013 was not the benefit, it was who funds it.

The formula is in 5 U.S.C. § 8415(a) and it is simple: **1% of your «average pay» multiplied by your total years of service**. Thirty years of service yields 30% of your average salary, whatever deduction you pay.

There is a better formula for the special categories. Under § 8415(e), federal law enforcement officers, firefighters and air traffic controllers get **1.7% for each of the first 20 years**, plus 1% for each year beyond those 20.

Knowing which of the three groups you fall into is not trivia: it is what lets you estimate your retirement realistically and decide how much to put into the TSP to compensate.

When you can retire with an immediate annuity

Section 8412 gives three doors to an immediate annuity, and you only need to pass through one:

  • **MRA + 30 years**, the minimum retirement age plus thirty years of service.
  • **Age 60 + 20 years** of service.
  • **Age 62 + 5 years** of service. This is the door people forget: with only five years of federal service there is already a pension at 62.
  • **Special categories** (federal law enforcement, firefighters, Capitol and Supreme Court Police, nuclear materials couriers, and customs and border protection officers): **25 years** of covered service at any age, or **age 50 + 20 years** of covered service.

Your MRA comes from your birth year

The «minimum retirement age» is not a single number: section 8412(h) tiers it by when you were born. If you were born **after December 31, 1969**, your MRA is **57**. Between 1953 and 1964, it is **56**. Those born between 1965 and 1969 fall on an intermediate ladder of months, just as those born between 1948 and 1952 climbed from 55 toward 56.

For nearly anyone entering federal service today, the short answer is 57.

There is a lesser-known fourth route, the so-called MRA+10: retiring at your MRA with at least 10 years of service. You can, but it costs. Section 8415(h) reduces the annuity by **five-twelfths of 1% for each full month** the annuity begins before your 62nd birthday. That is 5% per year. Retiring at 57 instead of 62 cuts the pension by roughly a quarter, and the cut is permanent.

The TSP match: the part you can actually lose

Here is the heart of the TSP for a FERS employee, and the statute gives exact numbers in 5 U.S.C. § 8432(c).

First, your agency contributes **1% of your basic pay even if you put in nothing at all**. It is automatic, and the statute gives it up to 12 days after the end of the pay period to deposit it.

Second, the match, which has two tiers and therefore confuses people: the agency matches **dollar for dollar the portion of your contribution that does not exceed 3%** of your basic pay, and then adds **half of the portion above 3% but not above 5%**.

Run the math at 5%: you contribute 5%, the agency puts in 1% automatic + 3% from the first tier + 1% from the second tier (half of that 2%) = **5% from the agency**. Contributing 5% turns your 5% into 10%. Contributing less than 5% is leaving salary uncollected, and it is the easiest part of your compensation to lose by not checking a screen.

On how much you may contribute: the statute lets you go up to **100% of your basic pay** from fiscal year 2006 onward (§ 8432(a)(2)). The real ceiling that stops you is not that one, it is the annual contribution limit set by the federal Internal Revenue Code, which changes every year. That number has to be looked up fresh each year at the IRS or in your TSP account; we do not publish it here because a stale figure is worse than none.

You are enrolled automatically, and that default is not 5%

Section 8432(b)(2) requires automatic enrollment for everyone entering a position where they can contribute to the TSP. The **default percentage is 3%**, and the Board may set another **between 2% and 5%**.

Read that again: the statutory default is 3%, and the full match requires 5%. If you leave what they set you at without touching anything, you are very likely leaving about 1% of your salary uncollected every year, every year, for your whole career.

You can change the percentage or amount, and you can also decline automatic enrollment entirely. The statute says an election to contribute **may be made at any time**, takes effect as soon as administratively feasible, and stays in effect until you modify or terminate it.

The first day of a federal job comes with a thousand forms. This is the one worth money: log into your account and raise the contribution to at least 5%.

Vesting: three years, and only for the automatic 1%

The previous version of this guide said «generally a few years». The statute gives the exact number, and it is worth knowing if you are thinking of leaving government.

Section 8432(g)(1) starts with the general rule: **all contributions are fully nonforfeitable when made**. Your contributions and the agency match are yours immediately, with no waiting period.

There is exactly one exception: the agency's **automatic 1%** contributions (and everything they earned) are forfeited if you separate from government before completing **3 years of civilian service**. For certain senior and confidential positions (noncareer Senior Executive Service appointments, Executive Schedule positions, and positions excepted for their confidential or policy-determining character) the requirement drops to **2 years**, as it does for members of the uniformed services.

In short: if you leave federal service at two and a half years, you take all your money and all the match, but you forfeit the automatic 1%. If you hold on to three years, you take it all. That is a real consideration if you are weighing a private-sector offer near that mark.

The funds, and what happens if you leave

The TSP invests through a deliberately short menu: the G Fund (government securities, the most conservative), F (bonds), C (large U.S. stocks), S (small and mid-cap stocks) and I (international), plus the L («Lifecycle») funds that blend all five automatically based on your estimated retirement year.

You can contribute traditional (pre-tax, taxed at withdrawal) or Roth (after-tax). The agency match always goes in as traditional, even if you contribute Roth.

If you leave government, the account stays yours: it can remain in the TSP or move to another qualified plan. And if you leave before qualifying for an immediate annuity but with at least 5 years of service, the FERS pension does not disappear; it is deferred until you reach the age. They are two separate things and each deserves its own decision.

This is general guidance based on the statute, not investment or tax advice. For your situation (and especially for how it intersects with Puerto Rico income tax when you retire) talk to your agency's human resources office and to a professional.

Frequently asked questions

What is the difference between FERS and TSP?

FERS is the complete federal retirement system and has three parts: the pension, Social Security and the TSP. The TSP is only one of those three, your individual defined-contribution account. You do not choose between them: if you are under FERS, the TSP comes with it.

Why is less deducted from my coworker's check than from mine?

Almost certainly because of when each of you started. Under 5 U.S.C. § 8422, someone already covered as of December 31, 2012 pays 0.8%; someone who started in 2013 pays 3.1%; someone who started later pays 4.4%. The pension both of you will receive is computed with the same formula.

How much do I have to contribute to the TSP not to lose money?

At least 5% of your basic pay. At 5% you receive the agency maximum: 1% automatic plus 4% matching, for a total of 5%. The statute's automatic enrollment starts at 3%, so if you never touched it you are probably leaving money uncollected.

If I resign before 3 years, do I lose the TSP?

You forfeit only the agency's automatic 1% and whatever it earned. Your own contributions and the match are nonforfeitable from the moment they are made, under section 8432(g)(1), and you keep them in full.

What is my minimum retirement age (MRA)?

It depends on your birth year, under section 8412(h). Born after December 31, 1969, it is 57. Between 1953 and 1964, it is 56. Those born between 1965 and 1969 sit on an intermediate ladder of months between 56 and 57.

I work federally in Puerto Rico. Do I contribute to Social Security?

Yes. In Puerto Rico, Social Security is paid the same as in the states, which is why all three FERS legs work here in full. In fact, computing your pension deduction starts by subtracting that 6.2% rate from your category's applicable percentage.

Official sources

MyPRjobs is an independent job discovery platform. MyPRjobs does not process this application. You will be redirected to USAJOBS or the appropriate official website to complete your application.

Before you decide anything with your money

This guide explains how the law works and where every figure comes from, but it is not financial or legal advice and it does not replace what your agency tells you. Amounts and requirements change, and your case may have specifics no guide can anticipate. Before deciding anything that affects your retirement or your account, confirm it with the retirement system, with your agency's HR, or with a qualified advisor.

Who writes this

MyPRjobs is made by one person in Puerto Rico who went through these processes: worked for a private agency, for the Government of Puerto Rico, and for the federal government. The guides are written from the official sources above and corrected when an agency changes a requirement.

More about the project

Federal jobs available now

Paralegal Specialist

Customs and Border Protection

Aguadilla, PR $89,508 – $116,362 / year Full Time Posted Sep 23 Closes Oct 6
🇺🇸 Federal
Grants Management Specialist

Maritime Administration

San Juan, PR $85,447 – $158,322 / year Full Time Posted Sep 23 Closes Sep 29
🇺🇸 Federal

Related guides