Not Sure You Billed Your Retainer Client? The Lido Café

2026-10-22

It is 12:40 on a Wednesday, and you are standing in the queue at the lido café with a tray and a lukewarm cheese toastie. The pool is half empty. It is the last warm week before they drain it, and you promised yourself an hour of daylight.

Your phone buzzes in your tote bag. You ignore it. Then you think of something else.

Did I send Hartmann's invoice this month?

The retainer. Same client, same amount, same arrangement for fourteen months. The one thing in your business that is supposed to be easy.

And you honestly cannot remember.

The easiest invoice is the one you lose

You picture last month's invoice. You can see it clearly, with the number in the corner. But is that last month's, or the month before? They look identical. That is the whole problem.

The tray is getting heavy. The person ahead of you is ordering for four children and changing their mind about the chips.

You run through the evidence, like a detective with very little to go on.

The work was done. The calls happened. The newsletter drafts went out on the 6th and the 20th. Nothing about the month feels unfinished.

But the invoice has no event attached to it. Nobody rang. Nobody asked. A normal invoice comes with a project ending, a final delivery, a small ceremony. A retainer just drifts along, month after month, and so does the paperwork.

You have the odd thought that being reliable is exactly what makes it easy to forget.

The two bad answers

You know the two ways this usually goes.

You can assume you sent it. If you are wrong, you find out in three weeks, when you are checking your account and the usual amount is not there. Then you send it late, with an apologetic line about "a small oversight on my side," and you quietly pay for the delay with your own cash flow.

Or you can assume you didn't, and send it again. If you are wrong, you have just invoiced a client twice for the same month. You will spend a very awkward afternoon writing an email that begins "Please ignore my previous message."

Neither of these is a disaster. Neither is something you want to be doing.

What bothers you is the feeling underneath. Fourteen months of a steady client, and you are guessing. A professional would know. A professional would have a way of knowing.

You look at the toastie and decide you are not hungry.

The bench by the shallow end

You pay, carry the tray outside, and sit on the bench by the shallow end. A lifeguard is rolling up a rope. The water is perfectly still and very blue, and you are not looking at it.

You open your sent folder on your phone. You scroll. Subject lines slide by. "Invoice 2026-031." "Invoice 2026-044." There is one in September. There is one in August. You tap into October and the screen shows… a draft.

A draft. Saved on the 1st. Never sent.

You laugh, a small dry one, because the relief is real and so is the irritation. You almost missed it. You did not miss it, but only because of a wobble in a queue for a toastie. That is not a system. That is luck.

You send the invoice from the bench, with sun on your knees. It takes ninety seconds. You eat half the toastie.

What you really wanted

Afterwards, you think about what you actually wanted in that queue. It was not a better memory. It was not more discipline either; you have plenty of that.

You wanted to be able to glance at one place and see: October, Hartmann, sent, due on the 14th. Or: October, Hartmann, not yet. A plain, quiet answer, without scrolling and without detective work.

You wanted the retainer to be as visible as the loud jobs. The ones with deadlines and panicked messages already get attention. The calm ones are the ones that slip.

You can picture a different Wednesday. The same queue, the same children ordering chips, and your phone staying in the bag. Because the answer is already known. Somewhere on a screen at home, a row is green, and you simply don't need to think about it.

No knot, no scrolling, no little spike of dread in the middle of your lunch hour. Just a free hour that is actually free.

The rest of the afternoon

You stay by the pool longer than planned. You watch a man in a swim cap do slow, careful lengths. You think about how much of self-employment is not the work itself, but carrying a quiet list of small questions in your head. Did I? Have they? Is it due yet?

Those questions are cheap one at a time. Together they follow you into the swimming pool.

On the walk home, you decide that the next month's invoice will not depend on a lucky draft. Not because you've failed, but because you've now seen how thin the thread was, and thin threads are worth replacing with something sturdier.

If this was a little too familiar

If you recognise the queue, the guess, and the held breath while you scroll your sent folder, a simple tracker may take that question off your mind for good. Get Paid On Time – Freelance Invoice, Hours & Client Tracker (Excel) keeps your clients, projects, hours and invoices in one calm place. It numbers your invoices automatically, shows due dates, flags what is overdue, and gives you a dashboard to glance at. It comes with sample data and a PDF guide, and a 30-day money-back promise: if it doesn't help, you get a full refund, no questions.

Take a look at the tracker here.

An illustrative story, written with AI assistance.