How Much Does Rehab Cost in 2026?

Rehab costs $1,500 to $8,000 for medical detox, $6,000 to $22,000 for a 30-day inpatient program with PPO insurance, and $15,000 to $50,000 without insurance. Outpatient programs cost $3,000 to $10,000 per month self-pay. Your actual out-of-pocket is capped by your plan’s 2026 out-of-pocket maximum, typically $7,000 to $9,500 per person.

Program	Without Insurance	With PPO Insurance	With Medicaid
Medical detox (5–14 days)	$1,500 – $8,000	$800 – $5,000	$0 – $50
Inpatient rehab (30 days)	$15,000 – $50,000	$6,000 – $22,000	$0 – $100
Partial hospitalization (30 days)	$6,000 – $20,000	$2,500 – $10,000	$0 – $50
Intensive outpatient (30 days)	$3,000 – $10,000	$1,200 – $5,000	$0 – $30
Outpatient therapy (session)	$100 – $200	$30 – $75	$0 – $5
Medication-assisted treatment (monthly)	$300 – $1,500	$50 – $250	$0 – $10

This guide answers the cost questions searchers ask but that most pages skip: how much is a 28-day stay, who actually pays for inpatient rehab, what the deductible-and-out-of-pocket-max math looks like on a real bill, and what your options are if you can’t pay in full. All figures reflect 2026 national averages at accredited facilities.

How Much Is 28 Days of Rehab?

A 28-day inpatient rehab stay — the standard “30-day program” billed on a 28-day insurance cycle — costs $14,000 to $47,000 without insurance and $5,500 to $20,500 out-of-pocket with PPO insurance. The spread depends on the facility tier, whether medical detox is included, and the substance being treated.

28-Day Cost Breakdown

Component	Self-Pay	With PPO Insurance
Medical detox (days 1–7, if needed)	$1,500 – $8,000	$800 – $5,000
Residential inpatient (days 8–28)	$12,500 – $39,000	$4,700 – $15,500
Total 28-day stay	$14,000 – $47,000	$5,500 – $20,500
Total capped by OOP max (typical PPO)	N/A	$7,000 – $9,500

The critical number for insured patients: your out-of-pocket maximum. Once your deductible, copays, and coinsurance add up to the OOP max, your plan pays 100%. For a 28-day stay at an in-network facility, most patients hit that cap within the first two weeks, so the second half of the stay is effectively free.

Why 28 Days (Not 30)?

Most “30-day programs” are billed on a 28-day insurance cycle. Insurance concurrent reviews typically re-authorize at 5, 7, and 14 days. If clinical necessity is documented, extensions to 35–45 days are common and billed as an extension, not a new stay. Some facilities advertise “30-day” but bill the final two days as outpatient step-down.

Who Pays for Inpatient Rehab?

This is the payment-source breakdown most cost guides skip. Understanding which of these applies to you determines your actual out-of-pocket.

1. Private Commercial Insurance (Most Common)

PPO, HMO, and EPO plans through Aetna, Cigna, Blue Cross Blue Shield, UnitedHealthcare, Kaiser, and Humana pay the majority of inpatient rehab stays in the United States. The Mental Health Parity and Addiction Equity Act of 2008 requires plans to cover substance use treatment at the same level as medical/surgical care, and the ACA made it one of 10 essential health benefits. See does insurance cover rehab for carrier-by-carrier detail.

2. Medicaid

Income-based eligibility (up to 138% of federal poverty level in expansion states). Molina, Aetna Better Health, and state-run Medicaid plans cover inpatient SUD treatment with $0 to nominal copays. Only in-network facilities accept it, and availability varies by state. See Molina rehab coverage for plan specifics.

3. Medicare Advantage

Available to adults 65+ or those with qualifying disability. Part A covers inpatient stays with a deductible (~$1,676 per benefit period in 2026) and coinsurance. Medicare Advantage plans from Humana and UnitedHealthcare often use copay structures ($350/day for days 1–5, then $0).

4. Employer EAP (Employee Assistance Program)

Many large employers offer EAP benefits that cover a short-term inpatient stay or provide facility referrals with negotiated rates. EAP benefits are separate from your medical insurance and do not count against your OOP max.

5. Veterans Affairs (VA)

Eligible veterans receive SUD treatment through VA medical centers or VA-contracted community care providers at no cost or minimal copay. The VA operates residential SUD programs and covers community inpatient stays when clinically indicated.

6. Self-Pay With Financing

Uninsured patients pay the facility’s billed rate, but most facilities negotiate. Facility-level financing options include:

• Sliding-scale fees indexed to income and household size
• Scholarship funds (often donor- or alumni-funded) for patients in financial hardship
• Single-case agreements where the facility negotiates a one-time contract with your insurer at in-network rates even if they’re out-of-network
• Medical loans through partners like Prosper Healthcare Lending or CareCredit, typically 12–84 month terms
• HSA/FSA accounts for pre-tax payment
• Payment plans directly with the facility, usually 6–24 months at 0% interest

For uninsured users specifically, obtaining a compliant health plan before treatment is usually far cheaper than self-pay. See rehab cost without insurance for the full calculation.

What You’ll Actually Pay: Deductible and Out-of-Pocket Max Math

Most cost guides quote ranges. This section shows the math using a real example.

Scenario: In-network facility bills $35,000 for a 30-day inpatient stay. You have a PPO plan with:

• Deductible: $2,000 (individual)
• Coinsurance: 20% after deductible
• Out-of-pocket maximum: $8,700 (individual)
• You’ve met: $0 of deductible this year

Step-by-step calculation:

Step	Amount	Running Total (Your Cost)
1. Pay deductible first	$2,000	$2,000
2. Remaining billed amount	$33,000	—
3. Your 20% coinsurance on remaining	$6,600	$8,600
4. Compare to OOP max ($8,700)	Below cap	$8,600

If the facility bills $55,000 instead:

Step	Amount	Running Total
1. Deductible	$2,000	$2,000
2. Remaining	$53,000	—
3. 20% coinsurance	$10,600	$12,600
4. OOP max caps you at $8,700	—	$8,700

Key insight: Once the facility bill exceeds roughly $35,500 on this plan, your out-of-pocket is capped. Staying longer or picking a more expensive facility doesn’t cost you more — it costs the insurer more.

Plug in your own numbers: Deductible + (20% × (facility bill − deductible)) = your cost, capped at your OOP max.

Use our calculator to plug in your specific plan, carrier, and substance for an estimate tailored to you.

30 Days vs 60 Days vs 90 Days: Cost and Outcome Tradeoff

The National Institute on Drug Abuse (NIDA) research consistently shows 90+ days of treatment produces significantly better long-term outcomes than 30-day programs. The cost tradeoff is less severe than it first appears, because of the OOP max cap.

Program Length	Self-Pay	PPO Out-of-Pocket	OOP Max Behavior
30 days	$15,000 – $50,000	$6,000 – $22,000	Usually hits OOP max by end
60 days	$30,000 – $100,000	Typically $7,000 – $9,500	Almost always hits OOP max
90 days	$45,000 – $150,000+	$7,000 – $9,500	Hits OOP max; rest is $0 to you

The insight: For insured patients, going from 30 to 60 to 90 days often costs the same out-of-pocket once you’ve hit your OOP max. Self-pay patients face a linear increase. This is why NIDA’s recommended minimum of 90 days is most realistic for insured patients.

Appropriate program length depends on substance (fentanyl and methamphetamine often require 90+ days), severity of use disorder, co-occurring mental health conditions, prior treatment attempts, and recovery support system.

The Cost of Waiting: Untreated Addiction vs One 30-Day Program

The dollar value of not entering treatment is rarely calculated. Using conservative estimates for a person with moderate-to-severe substance use disorder:

Cost Category	Annual Estimate
Substance spend (heroin/fentanyl at $50–$100/day)	$18,000 – $36,000
Emergency department visits (2–4 per year, avg $1,500–$3,000)	$3,000 – $12,000
Lost wages (partial or full, 6 months impact)	$15,000 – $40,000
Legal costs (DUI, possession — if applicable)	$5,000 – $25,000
Healthcare for addiction-related conditions	$5,000 – $20,000
Conservative annual total	$46,000 – $133,000

Compare to one 30-day inpatient program:

• With insurance: $6,000 – $22,000 out-of-pocket (capped at ~$8,700 OOP max)
• Without insurance: $15,000 – $50,000

The Centers for Disease Control reported 107,543 drug overdose deaths in the 12-month period ending in September 2023. The CDC estimates the annual economic cost of the U.S. opioid crisis alone at over $1.5 trillion. At the individual level, the math almost always favors entering treatment sooner.

Rehab Cost by Level of Care

Level of care is the single biggest cost driver. For a direct side-by-side, see inpatient vs outpatient rehab cost.

Inpatient/Residential Treatment

24/7 residential care with round-the-clock medical and clinical supervision.

• 30 days: $15,000–$50,000 self-pay; $6,000–$22,000 with PPO
• Includes: Medical detox, individual therapy, group therapy, MAT, psychiatric care, housing, meals, discharge planning
• When needed: Severe SUD, withdrawal risk, co-occurring mental health conditions, unsafe home environment, prior outpatient failure

Partial Hospitalization Program (PHP)

Day treatment 6+ hours/day, 5–7 days/week. Return home each evening.

• Per day: $200–$650 self-pay; $75–$350 with insurance
• 30 days: $6,000–$20,000 self-pay
• When needed: Step-down from inpatient, stable housing, need for intensive treatment

Intensive Outpatient Program (IOP)

Structured treatment 3–5 days/week, 3–4 hours/day. Live at home, continue work or school.

• Per session: $100–$350 self-pay; $30–$150 with insurance
• Monthly: $3,000–$10,000 self-pay
• When needed: Step-down from PHP, moderate SUD, work/family obligations

Standard Outpatient Therapy

Individual or group therapy 1–2 times per week.

• Per session: $100–$200 self-pay; $30–$75 copay
• When needed: Ongoing support after IOP, mild SUD, maintenance phase

See types of rehab programs for the full continuum of care.

Rehab Cost by Substance

The specific substance changes medical detox duration and MAT availability, which drives cost.

Substance	Detox Days	MAT Available	Typical 30-Day Self-Pay
Alcohol	5–7	Yes	$15,000 – $45,000
Opioids/fentanyl	5–10	Yes (highly recommended)	$18,000 – $55,000
Heroin	5–7	Yes	$17,000 – $50,000
Benzodiazepines	10–14+	No	$16,000 – $52,000
Cocaine	3–7	No	$14,000 – $45,000
Methamphetamine	5–10	No	$15,000 – $48,000
Marijuana	3–7	No	$11,000 – $35,000

Benzodiazepines cost more because detox requires the longest medical supervision — abrupt cessation can cause seizures, so tapering runs 10–14+ days. Stimulants and cannabis cost less because withdrawal is not medically dangerous and there are no FDA-approved MAT medications. See opioid rehab cost for the opioid-specific breakdown.

Factors That Affect Your Final Bill

Beyond the primary drivers (level of care, length, substance, insurance), several other factors move the needle:

Facility Type

• Standard accredited facility: Ranges above
• Luxury/executive rehab: $40,000 – $100,000+ for 30 days (private rooms, gourmet meals, equine/art/adventure therapy, higher staff-to-client ratios). Insurance typically covers the medically necessary portion; you pay the amenities difference.

Geographic Location

• High-cost areas (California, Northeast, Hawaii): 15–30% above national average
• Lower-cost areas (Midwest, South, rural): 10–20% below national average
• Out-of-state in-network treatment: Typically no cost difference on PPO plans

Dual Diagnosis

Treatment for co-occurring substance use and mental health conditions adds 10–20% to costs — psychiatric care, additional medications, specialized therapies, longer length of stay.

Hidden and Ancillary Costs

See hidden costs of rehab for a full inventory. Common line items: medication copays, lab work, transportation, aftercare and sober living, drug testing after discharge.

Ways to Pay When You Can’t Pay in Full

If the out-of-pocket math doesn’t work, these are the levers to pull. Most admissions teams won’t volunteer all of them — you have to ask.

1. Single-Case Agreement

If the facility you want is out-of-network on your plan, ask admissions to pursue a single-case agreement (SCA). The facility negotiates a one-time contract with your insurer at in-network rates. SCAs are granted most often when no in-network facility offers the specialized care you need. This is the most underused cost-reduction tool.

2. Sliding-Scale Fees

Income-indexed pricing. Bring pay stubs, tax returns, and proof of household size. Reductions of 30–70% are common for patients below 300% of federal poverty level.

3. Scholarship Funds

Many accredited facilities maintain alumni- or donor-funded scholarships covering partial or full cost. Ask specifically about “financial aid” or “scholarship funds” — terminology varies by facility.

4. Medical Loans

Prosper Healthcare Lending, CareCredit, and hospital-partner lenders offer 12–84 month terms at rates typically 6–15% APR. Pre-approval takes 24–48 hours.

5. HSA/FSA

Pre-tax dollars from Health Savings Accounts or Flexible Spending Accounts pay for qualified SUD treatment at in-network or out-of-network facilities.

6. Payment Plans

Direct with the facility, usually 6–24 months at 0% interest if paid on schedule.

7. Obtain Coverage First

If you’re uninsured and not in acute crisis, a qualified insurance plan (marketplace, COBRA, short-term ACA-compliant) usually costs less over 3–6 months of premiums than one month of self-pay treatment. See how to get insurance to cover rehab for the sequence.

For the state- and federal-level rights that force insurers to cover treatment, see Mental Health Parity Act protections.

Insurance by Carrier

Out-of-pocket varies by carrier based on network size and pre-authorization policies. Carrier-specific pages:

• Aetna rehab coverage — 1,800+ contracted facilities
• Blue Cross Blue Shield coverage — varies by state company
• Cigna rehab coverage — 1,900+ via Evernorth
• UnitedHealthcare coverage — 2,200+ via Optum
• Kaiser Permanente — integrated HMO
• Humana — strong Medicare Advantage SUD benefits
• Molina Medicaid — 15 states

Ongoing MAT Costs

Medication-Assisted Treatment continues after residential care ends. NIDA recommends minimum 12–24 months; many people remain on MAT indefinitely.

Medication	Monthly Self-Pay	Monthly Insured
Generic buprenorphine	$150 – $350	$10 – $75
Brand Suboxone	$400 – $600	$25 – $150
Sublocade injection	$1,600 – $1,800	$50 – $300
Methadone (OTP)	$300 – $500	$50 – $200
Vivitrol injection	$1,200 – $1,500	$50 – $250

MAT reduces overall healthcare costs by preventing overdose, ED visits, and criminal justice involvement — offsetting the ongoing medication cost many times over.

Next Steps: Calculate Your Actual Cost

Your real out-of-pocket depends on your specific plan, deductible status year-to-date, the substance, the facility, and the length of stay. Five steps to a real number:

1. Identify the substance and appropriate level of care
2. Pull your plan’s Summary of Benefits (deductible, coinsurance, OOP max)
3. Confirm year-to-date deductible progress
4. Contact 2–3 accredited facilities for benefits verification
5. Ask each about single-case agreements if out-of-network

If you don’t have insurance, a licensed specialist can evaluate whether enrolling in a marketplace or short-term plan before treatment saves money versus self-pay.

Sources

• National Institute on Drug Abuse (NIDA). “Principles of Drug Addiction Treatment: A Research-Based Guide.” 2024. https://nida.nih.gov/publications/principles-drug-addiction-treatment-research-based-guide-third-edition
• Substance Abuse and Mental Health Services Administration (SAMHSA). “National Survey of Substance Abuse Treatment Services (N-SSATS).” 2024. https://www.samhsa.gov/data/
• Centers for Disease Control and Prevention. “Drug Overdose Deaths.” 2024. https://www.cdc.gov/nchs/products/databriefs/db491.htm
• Healthcare.gov. “Mental Health and Substance Use Disorder Coverage.” 2026. https://www.healthcare.gov/coverage/mental-health-substance-abuse-coverage/
• Kaiser Family Foundation. “Health Insurance Coverage and Costs.” 2025. https://www.kff.org/
• U.S. Department of Labor. “Mental Health Parity and Addiction Equity Act.” https://www.dol.gov/agencies/ebsa/laws-and-regulations/laws/mental-health-and-substance-use-disorder-parity
• Centers for Medicare & Medicaid Services. “2026 Part A Deductible and Coinsurance.” https://www.cms.gov/