Medicare Part D Plans
Common 75% exampleMedicare Part D plans commonly use a 75% timing example for many non-controlled maintenance medications. The final date can still depend on the plan, claim history, pharmacy processing, and exception rules.
Insurance Refill Rules: Common Timing Examples by Plan
Last reviewed: July 2026
Insurance refill timing is usually based on days-supply math plus plan-specific claim edits. Use these examples to understand common timing windows, then confirm the actual refill date with your pharmacy or plan.
Next step by refill problem
Use this insurance page for plan timing examples. Use the calculator for date math, or the refill-too-soon guide when a claim message is already showing.
Estimate a refill dateUse fill date, days supplied, and a timing percentage.Open refill calculatorCalculate days supplyUse quantity dispensed and daily use to estimate duration.Open days supply calculatorUnderstand refill too soonReview what to ask when a pharmacy or plan shows a timing message.Read refill-too-soon guideCompare plan timing examplesSee common Medicare, commercial, Medicaid, and mail-order examples.Review insurance timingEstimate pills leftCheck expected pills used, pills remaining, and run-out date.Open pill count calculatorTrack refills on paperPrint a monthly calendar for run-out dates and reminders.Print refill calendarPlan controlled-substance timingUse conservative date math with clear safety limits.Open controlled-substance estimator
Private Commercial Plans
Common 75% - 80% examplesCommercial plans often use claim-timing edits designed by pharmacy benefit managers. Many users see 75% or 80% examples, such as around Day 23 or Day 25 for a 30-day supply, but plan documents and pharmacy systems control the real date.
State Medicaid Programs
State-specific examplesMedicaid timing is state-managed. Some programs use 75% examples for common maintenance medications, while other edits depend on state rules, drug class, prior authorization status, emergency policy, or pharmacy support.
Controlled Substances (DEA Schedules II–V)
Stricter timing examplesControlled-substance timing can be stricter and may require a valid new prescription, PDMP review, prescriber instructions, pharmacy policy review, and state or federal rule checks. Use calculator output as planning math only.
Mail-Order Regimens (90-Day Supply)
Common 85% - 90% examplesMail-order timing may account for shipping and processing lead time. Some users see 85% or 90% examples for a 90-day supply, but the actual shipment date depends on the mail-order pharmacy and plan.
Cash Pricing & Discount Cards
Not an insurance claimCash pricing or discount cards may avoid an insurance timing edit because the claim is not billed to your plan. This still does not decide whether a pharmacy can or should dispense a medication.
Understanding PBM Claim Gatekeeping
Pharmacy Benefit Managers (PBMs) often administer prescription benefits and real-time pharmacy claims. If a refill claim is submitted before the plan's timing example has elapsed, the pharmacy system may return a refill-too-soon message.
To learn the exact mathematical formulas used to round fractional days and how pick-up day definitions shift eligibility calculations, check our technical Prescription Refill Math Explainer.
What to Do During a Rejection
If your insurance rejects a claim as "Refill Too Soon" and you have a travel, lost medication, or dose-change situation, ask the pharmacy or plan which exception process applies. Read our guide on understanding Rejection Code 79 messages for general planning questions to ask.
Use These Examples In The Calculator
Skip the math spreadsheet. The refill calculator includes common timing percentages for Medicare-style, commercial-style, and stricter planning examples.