FEHB Self Plus One vs Self & Family: Which Enrollment Costs Less in 2027?

Published

Oct 5, 2026

Last Updated

Oct 5, 2026

FEHB Self Plus One vs Self & Family: Which Enrollment Costs Less in 2027?

  • FEHB Self Plus One and Self & Family are both available when you need coverage for yourself and one eligible family member.
  • Self Plus One is often cheaper for a two-person household, but Self & Family can cost less in some plans.
  • For 2027, the maximum government contribution is $767.53 biweekly for Self Plus One and $843.82 for Self & Family.
  • Your exact plan premiums, deductibles, out-of-pocket costs, and prescription coverage matter when deciding which enrollment tier costs less.
  • Comparing both enrollment rates during every FEHB Open Season can help you identify the lower-cost option as premiums and household needs change.

FEHB Self Plus One vs Self & Family is a choice between two coverage tiers in FEHB, the Federal Employees Health Benefits Program. Self Plus One is often, but not always, the lower-cost tier for a two-person household. For a broader look at 2027 premiums, benefit changes, and plan availability, see our 2027 FEHB changes and key updates. In 2027, some plans charge less for Self & Family. Updated October 2026. 
‍

Your cheaper tier depends on your exact plan option, even when only two people need coverage.
‍

Self Plus One covers the enrollee and one eligible family member. Self & Family covers the enrollee and all eligible family members who qualify under FEHB rules. OPM, the U.S. Office of Personnel Management, lets enrollees with just one family member choose either tier.
‍

That flexibility creates a pricing gap worth checking before Open Season closes on December 14, 2026.
‍

This guide explains how 2027 premiums split between you and the government, compares plan examples, and walks through a step-by-step method for choosing the right coverage. If you need additional support evaluating how your FEHB decisions fit into your broader retirement strategy, you can learn more about Federal Employee Advisor Network and its retirement planning resources.

‍

What Are FEHB Self Plus One and Self & Family Enrollments?
‍

FEHB Self Plus One is an enrollment type that covers a federal employee or annuitant and one eligible family member, such as a spouse or a child. FEHB Self & Family covers the enrollee and all eligible family members who qualify under FEHB rules. For retirees, understanding these healthcare costs alongside potential changes in retirement income is also important when planning for the year ahead; see our 2027 FERS COLA estimate for the latest projections and what they could mean for your annuity.
‍

OPM states that all FEHB plans offer Self Only, Self Plus One, and Self & Family enrollment. Each plan prices each tier separately. In some plans, the Self & Family premium is lower than the Self Plus One premium.
‍

OPM confirms that enrollees who want to cover one eligible family member may elect either tier. If you are eligible for both enrollment types, you can generally choose whichever has the lower enrollee premium for your plan and circumstances. Married couples and parents with one dependent child both have this choice. For a broader look at important OPM retirement considerations, you can also review this OPM retirement quick guide.
‍

How FEHB Premiums Work: The Government Contribution Behind Each Tier
‍

According to OPM, the government contribution is the lesser of two amounts. One is 72% of the program-wide weighted average premium for your enrollment type. The other is 75% of your chosen plan's total premium.
‍

You pay the rest. The 72% weighted-average contribution limit differs by enrollment type, so your tier choice changes the government's maximum share before plan-specific pricing enters the picture. For background, see our guide to how FEHB coverage works for federal employees.
‍

The table below shows the 2027 maximum government contribution for each tier, from OPM's premiums page. If you're also preparing for retirement, understanding the OPM online retirement application process can help you organize the required documents and benefit information before filing.

‍

Enrollment Type 2027 Biweekly Maximum 2027 Monthly Maximum Change from 2026 (Biweekly)
Self Only $352.04 $762.75 +8.4%
Self Plus One $767.53 $1,662.98 +7.9%
Self & Family $843.82 $1,828.28 +8.5%

‍

According to OPM, the 2027 program-wide weighted average premium is $1,066.02 biweekly for Self Plus One and $1,171.97 biweekly for Self & Family. OPM reports that the average FEHB enrollee share of premiums will increase 10.9% in 2027, while overall average premiums rise 9.3%. The change varies by plan and option.
‍

Our breakdown of 2027 FEHB premium changes covers the full picture. Our guide to FEHB Open Season deadlines lists the key dates.
‍

The government maximum for Self & Family is $76.29 higher biweekly than for Self Plus One. That equals about $1,984 per year across 26 pay periods. These are maximum government contributions, not necessarily the amount the government pays toward every plan.
‍

A higher maximum does not mean Self & Family will always cost you less. What you pay depends on how each plan's own Self Plus One and Self & Family premiums interact with the government contribution formula. For federal employees comparing overall retirement costs, it is also important to understand how other benefits and investment decisions fit into the bigger picture. Learn more about the TSP Mutual Fund Window and the costs, eligibility rules, and investment considerations that come with it.
‍

Here is what that looks like using the 2027 program-wide weighted-average premiums. At that level, the figures imply 298.49biweeklyforSelfPlusOne(1,066.02 minus $767.53) and 328.15forSelf&Family(1,171.97 minus $843.82). At the weighted-average level, Self Plus One is cheaper. These are not the premiums of an actual plan.
‍

Why Self & Family Sometimes Costs Less than Self Plus One
‍

Self & Family costs less when a plan prices Self Plus One at or near its family rate. Premium differences vary by plan and enrollment experience, so Self Plus One can sometimes cost more than Self & Family.
‍

A family enrollment can cover just two people. If you are a couple, you can use it to pay less when the family rate is lower.
‍

FedTools reported that its analysis of OPM's 2026 premium data found that 196 of 478 plan, option, and location rate combinations (41%) had a higher enrollee premium for Self Plus One. This is a third-party analysis of 2026 data, not an OPM statistic.
‍

For 2026, Federal News Network found 39 plan options where Self & Family was cheaper and nine where the premiums were the same.
‍

One example shows the size of the gap. Federal News Network reported a 2026 example from one Kaiser High Option (E3) plan, based on OPM's 2026 rates. In that report, enrollees paid $66.86 less biweekly, or $1,738 per year, by choosing Self & Family.
‍

As an illustration, not an actual plan, consider a hypothetical 2027 plan that charges identical total premiums for both tiers, where the government pays its maximum on both. The Self & Family enrollee would pay $76.29 less biweekly, about $1,984 per year. Our guide to family member eligibility rules explains who counts as an eligible family member.
‍

According to FedTools, 5 CFR 890.301 (Title 5 of the Code of Federal Regulations) requires only one eligible family member for Self & Family. A married couple with no children can therefore enroll in the family tier.
‍

Check your own plan's two rates before you assume either tier costs less.
‍

FEHB Self Plus One vs Self & Family: 2027 Plan Examples
‍

Three 2027 rate comparisons show that the cheaper tier changes from plan to plan. According to 2027 premium data compiled by FERS Ready and MyFederalRetirement from OPM's published rate information, the Mail Handlers Benefit Plan (MHBP) Standard Option charges $442.77 biweekly for Self Plus One. The same plan charges $400.78 for Self & Family.
‍

These differences are worth considering alongside other major financial decisions, such as how you use your TSP when buying a home. If you're considering borrowing from your retirement savings for a primary residence, learn more about TSP loan rules for buying a house before making a decision.
‍

The same compilations list the Government Employees Health Association (GEHA) high deductible health plan (HDHP) at $175.47 for Self Plus One and $215.63 for Self & Family. These figures are reproduced from third-party compilations of OPM's published 2027 rate data, so confirm each amount in OPM's official 2027 rate chart for your plan, option, and location.
‍

Plan Option Self Plus One (Biweekly) Self & Family (Biweekly) Lower-Cost Tier Approximate Annual Difference
MHBP Standard Option $442.77 $400.78 Self & Family $1,092
GEHA HDHP $175.47 $215.63 Self Plus One $1,044

‍

Rates are as compiled by third-party sources from OPM's published 2027 rate data. Confirm each figure in OPM's 2027 FEHB rate charts for your plan option. Annual differences multiply the biweekly gap by 26 pay periods and apply to non-Postal active employees.
‍

The gap can also run wide. MyFederalRetirement reports that the Foreign Service Benefit Plan High Option charges $46.70 more biweekly for Self Plus One than for Self & Family in 2027. That is roughly $1,214 per year.
‍

Verify every figure against OPM's rate charts and your plan brochure for your plan option and rate area before you decide.
‍

OPM's 2027 premiums page publishes a chart of plans where the Self Plus One enrollee share is higher than Self and Family. Start there to check your own plan.
‍

Self Plus One vs Self & Family: Side-by-Side Comparison
‍

Self Plus One covers one eligible family member at a tier priced for two-person households. Self & Family covers all eligible family members at one enrollment-tier premium.

‍

Feature Self Plus One Self & Family
Who is covered You plus one eligible family member You plus one or more eligible family members
Maximum family members One All who qualify under FEHB rules
2027 maximum government contribution (biweekly) $767.53 $843.82
Typical cost pattern Often lower for two-person households Often higher, but lower in some plans
Adding a family member later May require switching to Self & Family Already covers additional eligible family members
Best fit Two people when Self Plus One is priced lower Three or more people, or two people when the family rate is lower

‍

Household changes matter here. If you expect a child, or if your covered child will age out of eligibility, you may need to change tiers later. Our guide to qualifying life events explains when FEHB allows a mid-year change.
‍

Self & Family already covers additional eligible family members, but it may cost more than Self Plus One in plans that price the two tiers conventionally. Timing and eligibility rules still decide when you can change enrollment.
‍

Compare FEHB Self Plus One vs Self & Family Step by Step
‍

Comparing the two tiers takes five steps: confirm who is eligible, pull both premiums, convert them to annual cost, compare cost sharing, and repeat every Open Season.

  1. Confirm your household. List everyone eligible for coverage. If you need coverage for one eligible family member, either tier works. If you need coverage for more than one, Self & Family is the applicable enrollment type.
  2. Pull both premiums. Find both rates for your plan option on OPM.gov or on the brochure's last page.
  3. Convert to annual cost. Multiply biweekly premiums by 26 and monthly premiums by 12, then subtract to find the gap.
  4. Compare cost sharing. Review the plan's deductible, out-of-pocket maximum, and prescription coverage in the brochure.
  5. Repeat every Open Season. Rates change yearly, so the cheaper tier can flip. Federal News Network advises rechecking every option each year.

Try step 3 with the MHBP Standard Option rates. Self Plus One at $442.77 biweekly comes to about $11,512 per year, and Self & Family at $400.78 comes to about $10,420.
‍

In step 4, check the deductible, out-of-pocket maximum, prescription costs, and other cost-sharing provisions for the enrollment tier you are considering. For example, the GEHA HDHP's 2027 figures show the same $3,600 deductible and $12,000 in-network out-of-pocket maximum for Self Plus One and Self & Family, although the premiums differ. Our guide to comparing FEHB plans shows what to check.
‍

What to Weigh Besides Premium Before You Choose a Tier
‍

Premiums are only one part of the cost, according to OPM's 2026 Open Season highlights for plan year 2027. Compare the plan's deductible, out-of-pocket maximum, prescription costs, and other cost-sharing provisions in its brochure before choosing a tier.For broader retirement and financial planning considerations, you can also connect with a certified financial planner for federal employees who can help you evaluate how these decisions fit into your overall financial strategy.
‍

A new family member eligibility verification requirement applies to 2027 Open Season elections. According to OPM, the FEHB Protection Act of 2025 requires stronger verification, so anyone adding a new family member to an FEHB or PSHB plan during Open Season must submit supporting documentation.
‍

If you add a new family member for 2027, be ready to document that person's eligibility. OPM publishes the details in its 2027 Open Season highlights.
‍

Plan changes also affect the decision. According to OPM's Open Season Highlights, nine FEHB plans will not be available in 2027. OPM says enrollees in those plans must choose a new plan during Open Season or they will be enrolled automatically in the designated default plan, Compass Rose Standard. If your plan is one of them, compare both tiers in each replacement option.
‍

Our guide to 2027 FEHB changes and discontinued plans explains the default enrollment rules. OPM's news release says the 2027 FEHB Program has 45 participating carriers offering 118 plan options, so the replacement choices are broad. OPM also lists 2027 rates in its Open Season announcement.
‍

Retirement changes the math too. For annuitants under FERS, the Federal Employees Retirement System, and CSRS, the Civil Service Retirement System, FEHB premiums generally are deducted from monthly annuity payments, so your enrollment tier affects retirement cash flow.
‍

If you also draw from the TSP, or Thrift Savings Plan, include the expected FEHB cost in your withdrawal planning. See our guide to FEHB in retirement for more.
‍

Choosing Between Self Plus One and Self & Family
‍

Self Plus One is often, but not always, the lower-cost tier for a two-person household. Self & Family can win in plans that price the two tiers closely. For 2027, OPM caps the government contribution at $767.53 biweekly for Self Plus One and $843.82 for Self & Family. If you're unsure which option best fits your household and retirement needs, you can contact a federal retirement planning professional for personalized guidance. 
‍

Pull both rates for your plan option, convert them to annual cost, and check deductibles before Open Season closes on December 14, 2026.
‍

If FEHB premiums are part of your retirement budget, include the expected premiums in your FERS, CSRS, and TSP cash-flow planning. Confirm plan-specific costs and eligibility rules with OPM and your agency benefits office. For a broader view, read our FERS retirement planning guide. If you’d like personalized guidance on your federal retirement plan, you can book a free retirement consultation.
‍

FEHB Self Plus One vs Self & Family: Frequently Asked Questions
‍

Is FEHB Self Plus One cheaper than Self and Family?
‍

Self Plus One is often cheaper for a two-person household, but not always. For plan year 2026, Federal News Network's review of OPM rates found 39 plan options where Self & Family cost less and nine where premiums matched. Compare both rates for your exact plan option each Open Season.
‍

Can I enroll in Self and Family if I only have a spouse?
‍

Yes. According to FedTools, 5 CFR 890.301 requires only one eligible family member for Self & Family, so a married couple can enroll. Compare the enrollee premiums for both tiers before choosing. Self & Family may still make sense if you expect your coverage needs to change during the year.
‍

How much does the government pay toward FEHB premiums?
‍

The government pays the lesser of 72% of the program-wide weighted average premium or 75% of your plan's total premium, according to OPM. For 2027, the maximum biweekly government contribution is $767.53 for Self Plus One and $843.82 for Self & Family. You pay the remainder.
‍

When can I change from Self Plus One to Self and Family?
‍

You can change enrollment types during Open Season, which runs November 9 through December 14, 2026, according to OPM. Changes generally take effect January 10, 2027, for most non-Postal employees and January 1, 2027, for annuitants. Outside Open Season, you generally need a qualifying life event. Confirm timing with your agency benefits office.
‍

Does Self Plus One cover a spouse and a child?
‍

No. Self Plus One covers the enrollee and one eligible family member. A household with a spouse and a child needs Self & Family. Self & Family covers the enrollee plus all eligible family members who qualify under FEHB rules, so it also fits larger households at one enrollment-tier premium.
‍

Where can I find the 2027 FEHB premium for Self Plus One and Self and Family?
‍

OPM.gov publishes 2027 FEHB premiums for every plan in biweekly and monthly charts, including the enrollee share for Self Only, Self Plus One, and Self & Family. Each plan brochure also lists enrollee premiums on its last page. Compare both tiers for your exact plan option.

‍

Disclaimer: 

This article is for informational purposes only and does not provide individualized financial, retirement, insurance, or legal advice. FEHB rates, benefits, eligibility requirements, and enrollment rules can change. Verify all current information with OPM and your agency’s benefits office.

‍

+
 newsletter
Federal pension logo

Get Updated

Subscribe to our weekly updates for the latest on retirement planning, federal benefits, exclusive webinars, and more!

Keep Me Updated

Stuart Hunsicker

Stuart Hunsicker is a retirement planning professional with over two decades of experience in the financial industry. His work focuses on helping federal employees, educators, and families better understand their retirement options and build strategies designed around long-term financial stability.

linkedin icon

Download Federal Retirement: Step-by-step Checklist

This comprehensive guide will help you understand your federal benefits, optimize your savings, and plan for a comfortable future.

Thank you for downloading the checklist
Oops! Something went wrong while submitting the form.

Request An Appointment