GLP-1 monthly vs. 28-day billing: compare the real cost

A GLP-1 plan billed every 28 days has 13 billing periods in 364 days. A plan billed once per calendar month has 12 charges a year. Before comparing the price beside two providers, check the period it buys, the total charged today and any separate care fee. The examples below are fictional calculations, not current provider offers.

The extra billing period changes the comparison

Suppose Plan A costs $200 per calendar month. Twelve charges total $2,400. Plan B costs $200 every 28 days. Thirteen periods total $2,600 and cover 364 days. Dividing that total by 12 gives a calendar-month budgeting equivalent of about $216.67. The advertised dollar amount is identical; the annualized spending is not.

For a quick 52-week comparison, multiply a four-week charge by 13. For calendar-month billing, multiply by 12. A precise cash-flow calendar still needs your start date and actual renewal dates: a 365-day year is not exactly 13 four-week periods, and charges near the edges of your chosen window can change the total.

Write down both the service period and the payment date. A charge taken today may pay for treatment over several months. Conversely, paying each month might be an installment on a longer contract. The checkout schedule should answer which arrangement you are considering.

Separate the medicine from the membership

Use three lines for each quote: medication, required care or membership, and other mandatory charges. Add them before comparing providers. A fictional $150 medication charge plus a required $75 monthly care fee is $225 per month, not $150. If a first visit costs another $50, the first month's total is $275.

Keep optional purchases on a separate line. An optional coaching package should not inflate the minimum price, but a service you cannot decline belongs in the required total. If the page does not say whether a fee is optional, ask for a written quote rather than assuming it disappears at checkout.

The FTC advises checking renewal amounts and the terms of a subscription before signing up, including when a promotional rate ends.¹ For a GLP-1 program, the useful question is specific: “What will you charge me for the second and third billing periods at the dose my clinician prescribes?”

An annual average is different from a monthly payment

A fictional annual plan advertised as $100 per month may require $1,200 today. That is a valid monthly equivalent if the full year costs $1,200, but it is not a $100 monthly payment option. Record both numbers: effective monthly price, $100; cash due now, $1,200.

Then compare the exit terms. If you leave after two months, do not assume the remaining $1,000 comes back. Ask whether unused time is refundable, whether medication already dispensed is excluded and whether cancellation stops renewal only. A lower annual average may fit someone who can commit; it may be a poor fit for someone still deciding whether the service works for them.

Compare the same treatment and time window

Put the product name, form, dose and quantity beside each price. A starter offer and an ongoing treatment quote answer different questions. A compounded tablet is not simply an interchangeable budget version of an approved injection; our brand versus compounded guide explains the distinction.

Next choose a window: first payment, first three months or a full year. For each provider, total every required payment in that window and note any treatment time prepaid beyond it. This avoids making a twelve-month commitment look cheaper than a cancellable one-month trial without showing the tradeoff.

A useful quote request

Ask: “Please confirm the exact medication and form, quantity per shipment, total due today, every renewal date and amount, required care fees, minimum commitment and refund terms. Which amounts can change with the prescribed dose?” Keep the response with a dated copy of the checkout summary.

Bring those figures to our provider comparison, semaglutide cost guide or tirzepatide cost guide. A price comparison is most useful when it describes something you can actually buy on terms you understand.