Set it once, it bills every month

Recurring Invoice AgentRetainers that invoice themselves

Define the client, amount, and send date once and the same invoice goes out every month on schedule. It pro-rates partial months when a retainer starts mid-cycle and gives you a heads-up before each one sends.

Try it free
Ideal for Retainer freelancers
Recurring: Lindy retainer
Time comparison
Traditional way
15-20 min/mo
Remembering the date, duplicating last month, and recalculating any pro-rated period.
With Accordio
0 min/mo
Set it once and the invoice sends itself, with a heads-up the day before.
Average time saved
99%
Across recurring retainers managed by Accordio agents in 2026.
Why Accordio

Set Once, Runs Forever

Define the client, amount, and send day a single time. The same invoice goes out every month with no further input.

Pro-Rates Partial Months

When a retainer starts mid-cycle it bills the right fraction of the month, then the full amount from the next one on.

Heads-Up Before Sending

You get a reminder the day before each invoice goes out. Adjust the amount or pause it before anything reaches the client.

Predictable Cash Flow

Knowing exactly when each retainer bills makes income easy to forecast. Recurring revenue stops being a guessing game.

Many Clients At Once

Run a separate schedule for every retainer client in parallel. Each keeps its own amount, date, and terms.

Nothing Forgotten

No more missed months because billing slipped your mind. The agent never forgets a send date.

Get started

Runs your retainers on autopilotSo recurring revenue never needs a reminder.

Import your files
Gmail, Google Calendar, Slack
Retainer agreements
Send schedules
Fixed amounts
Start dates
Client records
Payment terms
Monthly amount
Send date
Pro-rated total
Days in period
Next run date
Payment terms
Client email
Invoice number

It works from the schedule and amount you set once.

Configure the retainer a single time and it repeats itself.

Calculates each cycle, including partial ones, on its own.

Works everywhere

One message.
Every action.

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