Recurring vs one-time service fees

A recurring fee repeats every billing period. A one-time fee is charged once, when the service is ordered or starts. The difference changes what appears on the first invoice and what appears on every invoice after it, so the same offer can look very different in its first month. This guide explains the calculation step by step, with a worked example.

Quick answer

The first invoice for a recurring service usually contains the recurring price for the first billing period, plus any one-time fees and one-time add-ons chosen at checkout. Later invoices contain only the recurring price for that period and any recurring add-ons still active. A one-time setup fee or one-time add-on is not repeated. Changes follow the same split: an upgrade can add a prorated amount immediately, while a downgrade normally takes effect at the next renewal. Check the amounts before you publish the offer, because the first invoice is the one customers compare with the price you advertised.

First invoice and later invoices

Charge First invoice Every later invoice
Recurring package price Included for the first period Included for each period
One-time setup fee Included once Not included
One-time add-on chosen at checkout Included once Not included
Recurring add-on Included for the first period Included for each period
Upgrade during a period Prorated charge now New price from the next period
Downgrade Not on the first invoice Takes effect at renewal

Where the recurring fee sits

The recurring fee is one amount per billing period, such as the monthly price of a package. It appears on the first invoice for the first period and then on each renewal. A monthly figure is accurate only when the billing period is shown next to it.

What the first invoice adds

The first invoice adds the one-time setup fee and any one-time add-ons selected at checkout to the first recurring period. Tax is calculated for the customer's billing country, so when you check the figures, keep tax as a separate line.

What later invoices contain

From the second period onward, the invoice contains the recurring package price and any active recurring add-ons. One-time items are not repeated, so the total falls by their amount. Agree this with your team before you explain a renewal to a customer.

How add-ons and changes are priced

A recurring add-on is charged every period, like the package itself. A one-time add-on belongs to the purchase it was sold with. An upgrade applies immediately with a prorated charge; a downgrade takes effect at renewal, so it changes the next invoice rather than one already issued.

A worked calculation with illustrative values

Care Plus is the example package at $190 per month. The setup fee is $150, charged once, and the Extra pages add-on is $30 per month. Taxes are left out of these figures. The table below shows what each invoice contains when the customer takes Care Plus with Extra pages from the start.

What each invoice contains

Illustrative values, before tax

Item First invoice Second invoice
Care Plus package, monthly $190 $190
Setup fee, once $150 $0
Extra pages, monthly $30 $30
Total before tax $370 $220

first invoice = first-period recurring price + that period's recurring add-ons + one-time setup fee + one-time add-ons; later invoice = recurring price + active recurring add-ons

Three mistakes that confuse the first invoice

  1. Only the monthly price is quoted

    A monthly figure without the one-time items understates the first invoice. Show the setup fee and any one-time add-on next to the price.

  2. The first invoice is treated as typical

    The first invoice is usually the largest, so a customer who compares it with the second can think the price changed. Explain both before they pay.

  3. A one-time add-on is modelled as recurring

    Modelled as recurring, it is charged again at every renewal, which overstates the later invoices.

How Komashi fits

In Komashi a service can be recurring or one-time. Each package has its own billing period and price, setup and other one-time charges are added as one-time items, and add-ons can be recurring or one-time. The checkout summary shows the recurring total, any one-time services and the total before the customer pays, so the first invoice matches what they saw. A one-time service, unlike a one-time add-on, is sold for a fixed access period and does not renew.

See usage and add-ons

What to check before you publish the offer

  • The first invoice total is built from the same items as the checkout summary.
  • Each recurring price states its billing period.
  • Setup fees and one-time add-ons are marked as one-time and do not repeat.
  • Upgrade and downgrade timing is confirmed in your terms and with your provider.
  • Tax is shown the way the checkout and your tax settings calculate it.

Ready to put this into practice?

Create a service with Komashi.