New USPS Employee Guide: Your First 90 Days

You made it through the application, the background check, the drug screening, and the waiting. Now you’re a USPS employee — whether that’s a CCA, PSE, MHA, RCA, or a direct career hire. The next 90 days are the most important of your postal career. Here’s everything you need to know about probation, benefits, pay, union membership, and the things nobody tells you during orientation.

The Probation Period: What It Actually Means

Every new postal employee goes through a probation period. How long it lasts depends on your position:

During probation, management can let you go without the full grievance protections that career employees have. You can be terminated for performance issues, attendance problems, or conduct concerns with minimal process. After probation, your union can file grievances on your behalf and the termination process becomes much more involved.

Week 1: Orientation

Your first week is mostly classroom orientation. You’ll cover safety procedures, workplace policies, an overview of how mail processing works, and a lot of paperwork. Carriers will typically have additional days of carrier academy training before going to their assigned office.

During orientation, you’ll complete your SF-1199A (direct deposit form), W-4 (tax withholding), and employment eligibility documents. Pay attention to the benefits enrollment information — you have limited windows to sign up, and missing them means waiting until the next Open Season.

You’ll also receive your employee ID number (EIN) and instructions for accessing LiteBlue (liteblue.usps.gov), the employee self-service portal where you can view your pay stubs, leave balances, and benefits information. Set up your LiteBlue access as soon as possible — you’ll use it constantly.

Your Pay: What to Expect

USPS pays biweekly (every two weeks on Friday). Your first paycheck will likely be smaller than expected because it may only cover a partial pay period. Don’t panic — it normalizes by your second or third check.

Your earnings statement (pay stub) will show your base pay, any overtime or premium pay, and all deductions. Common deductions include federal and state taxes, FICA (Social Security and Medicare), retirement contributions (FERS for career employees), health insurance premiums, and union dues (if applicable). See our pay stub guide for a line-by-line breakdown.

As a new hire, you’re at the bottom of the pay scale for your position. But postal pay includes built-in raises: step increases come automatically based on time in service, and cost-of-living adjustments (COLAs) and general wage increases come through your union’s contract. See our step increases guide to understand your raise schedule.

Benefits Enrollment: Don’t Miss the Windows

Health insurance

Career employees can enroll in the Postal Service Health Benefits (PSHB) program within 60 days of their appointment date. If you miss this window, you’ll have to wait until the annual Open Season (November–December) to enroll. PSHB offers a range of plans from different carriers — take time to compare premiums, deductibles, and provider networks before choosing. See our PSHB guide for details.

Non-career employees (CCAs, PSEs, MHAs) are eligible for the USPS Health Benefits Plan, a more limited plan for pre-career employees. Enrollment must happen within 60 days of hire. The Postal Service contributes toward the premium, but the employee share is higher than what career employees pay. Once you convert to career, you’ll be able to enroll in the full PSHB program.

Thrift Savings Plan (TSP)

This is the federal equivalent of a 401(k), and it’s one of the best retirement benefits in the country. Career employees hired under FERS are automatically enrolled at a 5% contribution rate. The Postal Service matches your contributions up to 5% of your base pay — that’s free money you leave on the table if you opt out or reduce your contribution below 5%.

Non-career employees can also contribute to TSP but do not receive the agency automatic contribution or matching. Once you convert to career, the matching kicks in — but any money you save through TSP as a non-career employee still grows tax-deferred in your account.

Life insurance (FEGLI)

Career employees are automatically enrolled in Basic FEGLI (Federal Employees’ Group Life Insurance) coverage at no cost to you. You can also purchase optional additional coverage for yourself, your spouse, and dependent children. You have 60 days from appointment to make your FEGLI elections.

Dental and vision (FEDVIP)

The Federal Employees Dental and Vision Insurance Program is available to career employees. You can enroll during your first 60 days or during Open Season. This is separate from your health insurance plan.

Your Union: What You Need to Know

USPS is a unionized workplace. Which union represents you depends on your craft:

Union membership is not required — you can choose whether to join and pay dues. However, the union negotiates the contract that determines your pay, benefits, overtime rules, and workplace protections regardless of whether you’re a member. During probation, union protections are limited, but once you pass probation, your steward can represent you in disputes with management.

If you choose to join, union dues are deducted from your paycheck. The amount varies by union and local, but typically ranges from $25 to $40 per pay period.

Leave: What You Earn and When You Can Use It

Career employees begin earning annual leave (vacation) and sick leave from day one. You accrue 4 hours of annual leave and 4 hours of sick leave per biweekly pay period. However, there’s a catch: you typically need to complete a 90-day qualifying period before you can actually use annual leave. Sick leave can be used if you’re genuinely ill, but using it during probation is risky (see the attendance warning above).

Non-career employees have different leave rules depending on your union’s contract. CCAs, PSEs, and MHAs generally earn leave but at different rates and with different usage restrictions. Check with your shop steward or union representative for the specifics of your situation.

Uniform Allowance

If your position requires a uniform (letter carriers, window clerks, mail handlers in public-facing roles), you won’t get your uniform allowance immediately. The allowance kicks in after you complete 90 working days or 120 calendar days, whichever comes first.

Until then, you’ll need to dress appropriately for your role. CCAs typically wear plain clothes plus their USPS ID badge until their allowance is available. Once activated, the allowance is loaded onto a Citibank uniform card that you use to purchase approved uniform items from authorized vendors. The annual allowance amount is set by your union’s contract — roughly $487–$499 per year for letter carriers as of the most recent agreements.

The Things Nobody Tells You

Your schedule will be unpredictable at first

Non-career employees (CCAs, PSEs, MHAs) should expect irregular schedules, especially in the beginning. You may work different start times, different days, and different assignments from week to week. Management assigns work based on operational needs, and as the newest person, you’re the most flexible resource they have. This gets better as you gain seniority, but early on, flexibility is the name of the game.

Overtime is real — and it adds up

USPS overtime rules are generous compared to the private sector. You earn time-and-a-half after 8 hours in a day or 40 hours in a week. In many offices, especially during peak seasons, new employees work significant overtime. This is great for your paycheck but can be exhausting. Pace yourself. See our overtime rules guide for the full breakdown.

Get to know your shop steward

Your shop steward is the union representative in your office. Even if you’re not sure about joining the union yet, introduce yourself. They know the local office culture, they understand what management can and can’t require of you, and they’re the first person to call if something goes sideways after you pass probation.

LiteBlue and PostalEASE are your tools

LiteBlue is where you access your pay stubs, leave balances, and HR information. PostalEASE is where you manage your benefits elections, TSP contributions, and other enrollment changes. Learn both systems early. When something is wrong with your pay or benefits, these are where you go first.

Your PS Form 50 is your career record

Every personnel action — your initial hire, conversion to career, promotions, step increases, reassignments — generates a PS Form 50. These accumulate in your official personnel folder and are the legal record of your employment history. Always verify that the information on your PS Form 50 is correct, especially your pay grade, step, and service computation date. Errors on your 50 can affect your pay and retirement for years. See our PS Form 50 guide for how to read every block.

The Path Forward: Non-Career to Career

If you were hired as a CCA, PSE, MHA, or RCA, your goal is conversion to career status. Career conversion brings full PSHB health benefits, TSP matching, FERS retirement coverage, higher pay, and full union protections.

Conversion timelines vary by craft, office, and staffing needs. In some offices, CCAs convert in under two years. In others, it can take longer. Your union’s contract sets the rules for conversion, and your local steward can tell you where you stand on the list. The key is to stay in good standing: maintain good attendance, do your job competently, and avoid disciplinary issues.

Related: How to Read Your USPS Pay Stub · Step Increases Explained · TSP Funds Guide