These calculators are for informational purposes only and do not constitute financial, legal, or tax advice.

This calculator provides simplified coverage and premium estimates for educational purposes only. It is not an insurance quote, offer of coverage, or substitute for advice from a licensed insurance agent. Actual rates and coverage needs vary by insurer, underwriting, and state.

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COBRA Cost Calculator

Find out exactly what your health coverage will cost after leaving your job — before you have to decide.

Estimate My COBRA Cost

COBRA insurance lets you keep your employer’s group health plan after you leave your job — but the price tag catches most people off guard. While employed, your employer typically covers a large share of the premium; under COBRA, you suddenly pay the full amount yourself, plus a 2% administrative fee. This COBRA Cost Calculator, also usable as a general COBRA coverage calculator, shows you your real COBRA health insurance cost upfront, in both monthly and annual terms, so you’re not blindsided when the enrollment paperwork arrives.

Estimating your COBRA insurance cost matters because you typically have only 60 days to elect coverage after a qualifying event, and that decision affects your budget for months. Knowing the real number — not just a guess — lets you compare it fairly against Marketplace plans, a spouse’s employer coverage, or other options before the deadline passes.

This tool is built for anyone recently laid off, furloughed, reducing work hours, going through a divorce that affects dependent coverage, or otherwise facing a COBRA qualifying event and needing health insurance after job loss. Enter your former employer’s total plan premium, the contribution split, and your coverage type, and this COBRA premium calculator returns your estimated COBRA monthly premium and annual COBRA continuation coverage cost instantly — everything you need to estimate COBRA insurance before your election deadline.

Quick Answer

COBRA generally costs the full group premium your employer used to help pay, plus up to a 2% administrative fee — often 3-4x more than what came out of your paycheck as an employee.

What Is a COBRA Cost Calculator?

A COBRA Cost Calculator is a tool that estimates what you’ll actually pay per month and per year to continue your former employer’s group health plan under the federal COBRA law, once you’re responsible for the full premium instead of just your payroll-deducted share.

Who benefits: anyone who just left a job — voluntarily or not — anyone whose hours were reduced below eligibility thresholds, and dependents losing coverage due to divorce, a covered employee’s death, or aging out of a parent’s plan.

Inputs required: the total monthly premium your employer’s plan actually costs, how much you and your employer each contributed, the administrative fee percentage (typically 2%), and your coverage type — individual or family.

Estimated results: your projected COBRA monthly premium, annual cost, and — optionally — a side-by-side comparison against an estimated Marketplace plan cost.

Important assumptions: the calculator assumes your former employer’s total premium and contribution split stay flat for the estimate period, and it uses a standard 2% administrative fee unless you specify otherwise.

When estimates may differ from actual premiums: your actual COBRA notice may reflect a mid-year plan cost change, a different administrative fee (some employers charge less than 2%, and extended disability coverage can allow up to 50%), or annual premium increases your former employer applies at renewal.

How to Use the Calculator

1Enter your employer health insurance cost. This is the full monthly premium your plan actually costs, not just what was deducted from your paycheck — check your benefits summary or ask HR for the exact figure.
2Enter your employee contribution. The portion you personally paid via payroll deduction each month while employed.
3Enter your employer contribution. The portion your employer paid on your behalf — this becomes your responsibility under COBRA.
4Set the COBRA administrative fee. Federal law caps this at 2% of the total premium (up to 50% for certain disability extensions) — leave at the 2% default unless your notice says otherwise.
5Choose your coverage type. Individual coverage for just yourself, or family coverage if you’re continuing coverage for dependents too.
6Set your coverage duration. Standard COBRA lasts 18 months for most qualifying events, or up to 36 months in certain situations.
7Optionally compare against a Marketplace plan estimate to see which option is more cost-effective for your situation.

Formula Used

Employee Total Premium

Total Premium = Employee Contribution + Employer Contribution

Your employee contribution is what came out of your paycheck; your employer contribution is what your employer paid on top of that. Added together, they equal the plan’s full monthly premium.

COBRA Monthly Cost

COBRA Cost = Total Premium × (1 + Administrative Fee)

The Administrative Fee is the extra percentage — typically 2%, sometimes called the COBRA 102% rule — that federal law allows plan administrators to charge on top of the full premium to cover processing costs.

Annual Cost

Annual COBRA Cost = Monthly COBRA Cost × 12

Multiplying your monthly COBRA cost by 12 gives you the full-year figure — useful for comparing against annual Marketplace plan costs or budgeting a full coverage period.

Example Calculation

Employer Premium (Total)	$900/month
Employee Pays	$250
Employer Pays	$650
Administrative Fee	2%

Step 1 — Total Premium. $250 (employee) + $650 (employer) = $900/month.

Step 2 — COBRA Premium. $900 × 1.02 = $918/month.

Step 3 — Annual Cost. $918 × 12 = $11,016/year.

What This Means

This employee paid $250/month while working, but the plan itself actually cost $900/month. Under COBRA, they now owe the full $918/month — nearly 3.7 times what came out of their paycheck previously. That gap is exactly why running the numbers before your election deadline matters.

Benefits of Using This Calculator

✓Estimates post-employment healthcare costs before you’re locked into a decision.
✓Helps you budget after job loss, when income is already reduced or paused.
✓Compares COBRA with Marketplace insurance so you can pick the genuinely cheaper option.
✓Supports financial planning during an already stressful transition.
✓Quick and easy premium estimation — no spreadsheet or math required.
✓Useful during open enrollment decisions, not just immediately after a job loss.
✓Clarifies your COBRA benefits and COBRA eligibility in plain numbers, so you know exactly what you’re signing up for before you commit to a COBRA premium payment schedule.

What Affects COBRA Costs?

Employer-sponsored plan cost. The total premium your former employer’s plan actually costs is the single biggest driver of your COBRA bill.

Family vs. individual coverage. Continuing coverage for a spouse and dependents costs substantially more than individual-only coverage.

Administrative fee. Most plans charge the maximum 2%, though some employers charge less; disability extensions can allow up to 50%.

Employer size. Federal COBRA generally applies to employers with 20+ employees; smaller employers may fall under state “mini-COBRA” laws with different rules and costs.

Dental and vision coverage. If you elect to continue these alongside medical, they add their own premiums to your total COBRA bill.

Plan selection. If your employer offered multiple plan tiers, your COBRA cost reflects whichever tier you were enrolled in at the time of your qualifying event.

State continuation laws. Some states extend COBRA-like protections and pricing rules beyond federal requirements, particularly for smaller employers.

Inflation and annual premium increases. If your COBRA period spans a plan renewal date, your premium can increase mid-coverage to match the new plan year’s rate.

COBRA vs Marketplace Insurance

Choosing between COBRA and an Affordable Care Act Marketplace plan is one of the biggest decisions you’ll make after losing job-based coverage — the table below breaks down the key differences.

Factor	COBRA	Marketplace (ACA)
Monthly Premium	Full group premium + up to 2% fee	Varies by plan; subsidies can lower it significantly
Provider Network	Same as your former employer’s plan	Depends on the plan you select
Deductibles	Same as your former employer’s plan	Varies widely by plan tier
Coverage Continuity	No gap — same plan, same providers	Possible gap or need to switch providers
Enrollment Timing	60-day election window after qualifying event	Special Enrollment Period, also roughly 60 days
Subsidy Eligibility	Not subsidized	Eligible for ACA premium tax credits based on income
Flexibility	Limited to your former plan, no other choice	Choice of multiple plans and coverage tiers
Out-of-Pocket Costs	Same as your former employer’s plan	Varies; can be lower with cost-sharing reductions
Best Use Case	Mid-treatment care, keeping the exact same doctors	Lower income, cost-sensitive, willing to switch providers

Tips to Reduce Healthcare Costs After Job Loss

1Compare Marketplace plans before defaulting to COBRA — a lower-cost tier may still meet your needs.
2Check ACA subsidies, since losing employer income often qualifies you for meaningful premium tax credits.
3Evaluate a spouse’s employer plan — a job loss is typically a qualifying event to join their coverage mid-year.
4Consider Medicaid eligibility, which varies significantly by state income thresholds.
5Use HSA funds if available to help cover COBRA or Marketplace premiums tax-efficiently.
6Review plan benefits before electing COBRA — don’t assume it’s automatically the best clinical fit.
7Avoid gaps in coverage, since even a short lapse can leave you exposed to a major unexpected medical bill.
8Compare total annual costs, not just monthly premiums, since deductibles and out-of-pocket maximums matter just as much.

Frequently Asked Questions

What is COBRA insurance?

COBRA (the Consolidated Omnibus Budget Reconciliation Act) is a federal law that lets you temporarily keep your former employer’s group health plan after a qualifying event like job loss, reduced hours, divorce, or a covered employee’s death. You pay the full premium yourself, plus up to a 2% administrative fee, since your employer no longer subsidizes any portion of the cost.

How is COBRA cost calculated?

COBRA cost equals your former plan’s full monthly premium — your prior employee contribution plus the employer’s contribution — multiplied by 1.02 to add the standard 2% administrative fee. Multiply that monthly figure by 12 for your annual cost. This calculator automates that math using your specific plan numbers.

Why is COBRA more expensive than employer coverage?

While employed, your employer subsidizes a large share of the premium — often 70% or more. Under COBRA, that subsidy disappears entirely, and you become responsible for both the employee and employer portions, plus a 2% administrative fee. This is why COBRA premiums frequently come as a shock, sometimes costing three to five times the payroll-deducted amount.

Is the 2% administrative fee mandatory?

Federal law sets 2% as the maximum administrative fee plan administrators can charge — it’s a ceiling, not a requirement. Most plans charge the full 2%, but some employers charge less or waive it. For certain disability-based extensions beyond 18 months, the law allows up to 50% for months 19-29 of that extended coverage.

Can COBRA cost change during coverage?

Yes. If your COBRA period spans your former employer’s plan renewal date, your premium can increase to match the new plan year’s rate, just as it would for active employees. Plan administrators are generally required to notify you in advance of any premium change so you can adjust your budget accordingly.

How long can COBRA coverage last?

Standard COBRA coverage lasts 18 months for job loss or reduced hours. Certain qualifying events — like divorce, a covered employee’s death, or a dependent aging out — can extend coverage up to 36 months. Disability determinations can also extend an initial 18-month period by an additional 11 months in specific circumstances.

Who qualifies for COBRA?

You generally qualify if you were enrolled in your employer’s group health plan and experience a qualifying event — voluntary or involuntary job loss (except for gross misconduct), reduced work hours, divorce, a covered employee’s death, or a dependent losing eligible status. Federal COBRA typically applies to employers with 20 or more employees; smaller employers may fall under separate state continuation laws.

Can I switch from COBRA to a Marketplace plan?

Yes. Losing job-based coverage, including COBRA ending, triggers a Special Enrollment Period that lets you enroll in a Marketplace plan outside the standard open enrollment window. You can also switch from COBRA to Marketplace coverage during any annual open enrollment period, even if your COBRA hasn’t run out yet.

Is COBRA cheaper than ACA plans?

Usually not, once ACA premium tax credits are factored in. COBRA has no subsidy, so you pay the full group premium plus the administrative fee. Marketplace plans, by contrast, often qualify for income-based subsidies that can dramatically lower the effective monthly cost, sometimes to a fraction of the equivalent COBRA premium — though the exact comparison depends heavily on your household income.

Does COBRA cover dental and vision insurance?

Yes, if you were enrolled in employer-sponsored dental or vision plans, COBRA generally lets you continue those separately or alongside medical coverage. Each continued plan carries its own premium plus the administrative fee, so electing dental and vision in addition to medical will raise your total monthly COBRA cost.

What happens if I miss a COBRA payment?

COBRA plans are required to offer at least a 30-day grace period after the due date. If payment still isn’t received by the end of that grace period, coverage is typically terminated retroactively to the last paid period, and reinstatement usually isn’t possible. Setting up automatic payments is a practical way to avoid an accidental lapse.

Can employers subsidize COBRA?

Yes, some employers voluntarily subsidize part or all of a former employee’s COBRA premium, often as part of a severance package. This isn’t required by federal law, so it’s worth explicitly asking your HR or benefits team whether any subsidy is included before assuming you’ll owe the full premium yourself.

Are COBRA premiums tax deductible?

COBRA premiums may be deductible as a medical expense if you itemize deductions and your total qualifying medical costs exceed the applicable threshold of your adjusted gross income. If you’re self-employed, different rules may apply. Because eligibility depends on your specific tax situation, confirm your exact deduction with a licensed tax professional rather than assuming automatically.

Can I cancel COBRA early?

Yes, COBRA is voluntary and you can cancel it at any time, typically by simply stopping payment or submitting a written cancellation request per your plan’s instructions. Canceling early makes sense if you’ve secured alternative coverage — a new job’s plan, a Marketplace plan, or a spouse’s employer plan — since there’s no benefit to paying for coverage you no longer need.

What alternatives exist to COBRA?

Common alternatives include Marketplace (ACA) plans, often with income-based subsidies; a spouse’s employer plan, joinable through a special enrollment period; Medicaid, for those who qualify based on income; and short-term health plans, though these typically offer more limited coverage. Comparing all available options against your specific COBRA estimate is the best way to find the most cost-effective fit.

Does COBRA start immediately after I lose my job?

COBRA coverage, once elected, is retroactive to the date your employer coverage actually ended, so there’s no true gap in coverage even if you take the full 60 days to decide. This retroactive feature is valuable if you need care during the decision window, since claims from that period can still be covered once you formally elect and pay.

How much notice will I get before my COBRA rights?

Employers generally must notify their plan administrator within 30 days of a qualifying event, and the plan administrator must then send you a COBRA election notice within 14 days after that. In practice, this means you should receive your official election paperwork within about 44 days of your qualifying event, starting your 60-day election clock.

Is this calculator free to use?

Yes, completely free with no signup or payment required. Enter your former plan’s premium details to get an instant estimated monthly and annual COBRA cost, plus an optional Marketplace comparison. You’re welcome to run it as many times as needed while you weigh your coverage options before your election deadline.

Common Mistakes

•Assuming your payroll deduction equals your COBRA cost, when it’s actually just a fraction of the full premium.
•Ignoring the employer contribution when estimating what you’ll actually owe.
•Forgetting the administrative fee, which adds up meaningfully over a full year.
•Missing the 60-day election deadline, which permanently forfeits your COBRA rights for that qualifying event.
•Not comparing Marketplace plans before defaulting to COBRA out of familiarity.
•Overlooking subsidy eligibility, since a lower-income year often qualifies you for meaningful ACA tax credits.
•Failing to budget for the full annual healthcare expense, not just the first month’s premium.

Related Calculators

Health Insurance Cost Calculator
Emergency Fund Calculator
HSA Savings Calculator
Net Cash Flow Calculator
Medicare Premium Calculator
Financial Health Score Calculator

Note: Health Insurance Cost and Medicare Premium Calculators are planned but not yet live on FinanceNavigatorPro.com, so they’re listed without links. Emergency Fund, Net Cash Flow, and Financial Health Score Calculators are live and linked directly.

Authoritative Sources

For official, up-to-date COBRA rules and your specific rights, refer directly to the U.S. Department of Labor, the IRS, Healthcare.gov, and the Centers for Medicare & Medicaid Services (CMS) — the federal agencies that jointly administer and enforce COBRA continuation coverage law.

Conclusion

Losing job-based health coverage is stressful enough without also being surprised by the actual cost of keeping it. Estimating your COBRA premium ahead of time — before your 60-day election window closes — puts you in control of a decision that will affect your monthly budget for months, not weeks.

Use the calculator above to see your real monthly and annual COBRA cost, then compare it honestly against Marketplace plans, a spouse’s employer coverage, and any other options available to you. The cheapest choice isn’t always the obvious one, and a few minutes of comparison now can save you hundreds of dollars a month during an already difficult transition.

This calculator and article are for educational purposes only and provide estimates only. They do not replace your official COBRA election notice, employer benefit documents, insurance carrier information, or professional financial or legal advice. Confirm exact figures with your plan administrator, and consult a licensed professional for guidance specific to your situation.