2027 Medicare Part D Changes: What the $2,400 Out-of-Pocket Cap Means for DFW Seniors

Medicare Part D will have two important standard benefit changes in 2027. The standard deductible will increase to $700, and the annual out-of-pocket cap for covered Part D drugs will increase to $2,400.

These figures are the standard benefit parameters finalized by the Centers for Medicare & Medicaid Services (CMS) for calendar year 2027. They apply to stand-alone Part D prescription drug plans and Medicare Advantage plans that include prescription drug coverage, although individual plan designs may differ.

The changes matter for Dallas-Fort Worth seniors reviewing coverage during the Medicare Annual Enrollment Period (AEP), which runs from October 15 through December 7, 2026. A plan that worked well in 2026 may have different premiums, formularies, pharmacy networks, or total annual costs in 2027.

2026 vs. 2027 Medicare Part D costs

The table below shows the two standard Part D parameters changing for 2027.

Part D parameter	2026	2027
Standard deductible	$615	$700
Annual out-of-pocket cap for covered Part D drugs	$2,100	$2,400

These are CMS-defined standard benefit amounts. Some plans may offer a lower deductible or use a different cost-sharing structure, but the plan must provide benefits that are actuarially equivalent to the defined standard benefit.

The CMS CY 2027 Rate Announcement confirms these final parameters.

What the $2,400 out-of-pocket cap means

The annual out-of-pocket cap is the maximum amount a member’s true out-of-pocket spending can reach for covered Part D drugs during the calendar year.

Once a member’s qualifying true out-of-pocket spending reaches $2,400, the member enters the catastrophic phase. At that point, the member pays $0 for covered Part D drugs for the rest of that calendar year.

The cap does not mean that every Medicare prescription drug cost is limited to $2,400. It applies to covered Part D drugs and qualifying out-of-pocket spending under the member’s plan. Premiums, non-covered medications, and certain other expenses are handled separately.

The cap is a hard limit created by the Inflation Reduction Act and indexed annually. This means the amount can change from year to year based on the required statutory formula. The increase from $2,100 in 2026 to $2,400 in 2027 does not remove the protection provided by the cap. It establishes the new annual threshold for the 2027 plan year.

For seniors using expensive specialty medications or several ongoing prescriptions, the cap can be an important part of annual budgeting. However, the cap does not eliminate the need to compare plans. A plan’s premium, deductible, drug tiers, pharmacy network, and formulary can affect what a member pays before reaching the cap.

The deductible will increase to $700

The 2027 standard Part D deductible will be $700, compared with $615 in 2026.

The deductible is the amount a member may pay before the plan begins its regular cost-sharing structure for covered prescriptions. Plan designs vary. Some plans may have a lower deductible, while others may apply a deductible only to certain drug tiers.

Seniors should review how their prescriptions are treated under each plan. A plan with a higher monthly premium may have a lower deductible or lower costs for specific medications. A plan with a lower premium may have higher costs for prescriptions.

The deductible alone does not show the full cost of coverage. The more useful comparison is the estimated total annual cost based on the member’s actual medication list.

Medicare Prescription Payment Plan: spreading costs across 12 months

The Medicare Prescription Payment Plan provides a way to spread covered prescription drug out-of-pocket costs across the calendar year.

Instead of paying the full cost share at the pharmacy when a prescription is filled, a participating member may receive a monthly bill from the Medicare drug plan. The payment amount is calculated based on the member’s prescription costs and the number of months remaining in the year.

This option can smooth out-of-pocket expenses for a member who has high prescription costs early in the year. It can also make monthly budgeting more predictable.

The payment plan does not reduce total prescription drug costs. It only spreads those costs across monthly payments. The member still pays the same underlying cost-sharing amount that would otherwise apply under the Part D plan. The $2,400 annual out-of-pocket cap also applies whether or not the member uses the payment plan.

More information is available through the official Medicare Prescription Payment Plan resources.

Part D premiums vary across DFW counties

Part D premiums are not the same everywhere. They vary by plan and county, so local comparison matters for seniors in the Dallas-Fort Worth area.

Plan options and premiums can differ in:

• Dallas County
• Tarrant County
• Collin County
• Denton County
• Johnson County
• Parker County

A plan available in Dallas County may not have the same premium, network, or benefit structure in Tarrant or Denton County. Seniors who moved within North Texas should update their address and confirm that their current plan remains available in the new county.

Local plan comparisons should also account for preferred pharmacies, mail-order options, drug coverage rules, and the location of in-network pharmacies. A plan’s pharmacy network can affect the cost of each prescription.

IRMAA may add a Part D surcharge

Some higher-income Medicare beneficiaries pay an additional Part D charge called the Income-Related Monthly Adjustment Amount, or IRMAA.

IRMAA is separate from the plan’s standard monthly premium. It is based on income information from a prior tax year and may apply to both Medicare Part B and Part D. The surcharge is collected through Medicare billing or another method established by Medicare, not necessarily through the prescription drug plan’s regular premium bill.

The 2027 Part B and Part D IRMAA amounts are separate from the $700 deductible and $2,400 Part D out-of-pocket cap. A person who owes IRMAA must account for that additional charge when reviewing total Medicare costs.

At the time of writing, the official 2027 IRMAA figures and the 2025 MAGI lookback had not yet been published. The table below uses the most recent published IRMAA amounts for 2026, based on 2024 MAGI, as a reference point so readers can see which income tiers trigger a Part D surcharge.

2024 MAGI — Single	2024 MAGI — Married Filing Jointly	Monthly Part B IRMAA surcharge	Monthly Part D IRMAA surcharge	Total Part B per month
$109,000 or less	$218,000 or less	$0.00	$0.00	$202.90
Above $109,000 up to $137,000	Above $218,000 up to $274,000	$81.20	$14.50	$284.10
Above $137,000 up to $171,000	Above $274,000 up to $342,000	$202.90	$37.50	$405.80
Above $171,000 up to $205,000	Above $342,000 up to $410,000	$324.60	$60.40	$527.50
Above $205,000 up to $500,000	Above $410,000 up to $750,000	$446.30	$83.30	$649.20
Above $500,000	Above $750,000	$487.00	$91.00	$689.90

IRMAA is a cliff, not a gradual phase-in. Crossing into a higher tier triggers the full surcharge for that bracket.

For a plain-English explanation of income-based Medicare charges, see the Medicare Part B premium and IRMAA guide.

What DFW seniors should review during AEP

The Medicare Annual Enrollment Period runs from October 15 through December 7, 2026. Coverage selected during this period generally applies to the 2027 plan year.

A practical review should include the following steps.

1. Read the Annual Notice of Change

The Annual Notice of Change (ANOC) explains how a current plan will change for the upcoming year. It may include updates to the monthly premium, deductible, copayments, drug tiers, pharmacy network, formulary, and coverage rules.

Members should compare the ANOC with their current medication list. A small formulary change can affect the annual cost of a medication.

2. Re-run the complete medication list

Use the Medicare Plan Compare tool or another reliable plan finder tool to review every prescription.

The list should include:

• Medication name and strength
• Dosage and frequency
• Quantity filled
• Preferred pharmacy
• Mail-order preferences
• Brand-name or generic status

The medication list should be reviewed again if a prescription changed during the year.

3. Check formulary changes

A formulary is the plan’s list of covered prescription drugs. Plans may change which medications they cover, the tier assigned to a drug, utilization management requirements, or the pharmacies that offer preferred pricing.

Seniors should check whether each medication is covered and whether the plan requires prior authorization, step therapy, or quantity limits. Any change should be discussed with the prescribing provider before changing medications.

4. Confirm the pharmacy network

A pharmacy that was in-network in 2026 may have different status or pricing in 2027. Review local pharmacies near the member’s home and compare preferred pharmacy options with standard in-network options.

This step is particularly important for DFW residents who use a pharmacy near work, home, or a seasonal residence.

5. Compare total annual cost

The lowest monthly premium is not always the lowest-cost option for the year. Total annual cost should include:

• Monthly plan premiums
• The deductible
• Copayments or coinsurance
• Estimated prescription costs
• Pharmacy pricing
• The potential effect of reaching the annual out-of-pocket cap

A plan with a slightly higher premium may provide lower prescription costs for a specific medication list. The correct choice depends on the member’s prescriptions, county, pharmacy preferences, and budget.

Free Medicare plan review for DFW seniors

The 2027 Part D changes make the 2026 AEP review especially important. The increase in the standard deductible and annual out-of-pocket cap should be considered alongside plan-specific changes in premiums, formularies, pharmacy networks, and cost-sharing.

DFW Health Coverage helps seniors compare Medicare options based on their prescriptions, county, budget, and coverage preferences. The agency works with plans from trusted carriers and provides no-obligation guidance for individuals in Fort Worth, Dallas, and surrounding North Texas counties.

Visit the senior health insurance page to learn more or use the contact page to request a free plan review.

Call 682-551-1221 to discuss 2027 Medicare Part D options before the December 7 AEP deadline.