You stop chasing invoices by deciding in advance when each client gets billed, putting the same payment terms on every invoice, and letting reminders go out on a schedule. Then a 20-minute check once a week replaces the Friday-evening scramble.

It's for consultants who know this feeling: you open your banking app on a Friday and wonder whether half your clients forgot to pay. Then you're trawling email threads to see who you sent what, half-writing a "just bumping this up" note, and doing it when you have the least energy of the week.

Why invoicing eats your evenings

Many ex-corporate consultants rebuild the same patchwork they left, only smaller:

Email for briefs and scope changes
Word or Google Docs for proposals
A spreadsheet for time tracking
A PDF invoice template you copy, edit and hope you don't overwrite

It works, but it leaks time. You spend twenty minutes finding the hours from one client call. You retype the same line items. You dig through old emails to remember who's on which rate. You open a folder and can't tell whether last month's invoice ever left your drafts.

The pattern underneath is the same for most people:

Invoices go out late, or not at all
Payment terms are vague or buried
Clients assume someone in their finance team dealt with it
You lose three or four evenings a month pushing cash along

The fix is a system that sends invoices on time and follows up without you, with a small amount of your attention once a week.

Part 1: set billing triggers for each type of work

Replace "I'll invoice when I remember" with a rule for each type of client. Sort your clients into buckets and give each one a trigger:

Retainers: bill monthly, for example on the last working day of the month
Fixed-price projects: bill in stages, for example 50% upfront and 50% at 80% complete
Day-rate work: bill every Friday for the days worked that week

A trigger can be a date or a stage of the work. What matters is that it's the same every cycle, so billing stops depending on your memory.

This takes an afternoon:

List your current clients and projects.
Put each one in a bucket: retainer, fixed project or day rate.
Note how you bill them today, even if it's messy.
Write down the trigger for each bucket.

Part 2: standardise your terms and wording

Stop writing each invoice from scratch. Keep three things standard:

Payment terms, such as 14 or 30 days, on every proposal and every invoice
Line item descriptions for the work you sell most often
Reminder wording that's polite and neutral

Put your payment terms and any late fee policy in plain language on every proposal and invoice, so nothing about payment is a surprise later.

Part 3: let reminders do the chasing

The invoice is rarely the hard part. The follow-up is, because nobody wants to feel like a debt collector. A reminder schedule takes that off you:

A clear due date on every invoice
An automatic reminder a few days before the due date
Another a day or so after, then at set intervals until it's paid

Use neutral wording. "This is a friendly reminder that invoice 104 is now overdue" reads as routine. "Just chasing this" reads as personal.

For clients you know well, let the automatic reminders run, then add one personal message if a payment is very late.

No system fixes a client who doesn't intend to pay. What it does is show you the problem early, so you can pause work or have a direct conversation before you're months behind.

Part 4: a 20-minute weekly money check

Swap the Friday scramble for a short check at the same time each week. Thursday morning or first thing Monday works well, while your head is clear.

Invoice last week's unbilled time.
Check who is due to be billed in the next seven days, and prepare those invoices.
Look at overdue invoices, see which reminders have gone out, and pick any that need a personal message.

Twenty minutes a week is under two hours a month, and it replaces the evenings you were losing.

How I run this system in Kiaro

I built Kiaro around this routine. Here's how each part maps to it:

Retainers bill themselves into drafts. Set up a retainer with its monthly fee and billing day, and Kiaro drafts the invoice on your billing day, with any overage included. You get a card on your Home page when it's ready. Nothing is sent until you click Send.
Fixed-price stages are milestones. Give a project milestones such as "50% upfront" and "Delivery", and when one is done, mark it complete and click Generate Invoice on the project's Milestones tab.
Day-rate and hourly work comes from tracked time. Home shows how much unbilled time you have, and a card such as "Invoice Acme · 16h" opens the invoice builder with that client's time already selected. Each entry becomes a line with its hours and rate. Schedule Send lets you prepare the invoice now and have it go out on Friday afternoon.
Payment terms set the due date. Your default terms in Invoice Settings fill in the due date on every new invoice.
Reminders are on by default. One goes 3 days before the due date, one a day after, then every 7 days up to 3 times. Change the timing, or write your own subject and message using your invoice number, amount and days overdue.
Slow payers are visible. When you pick a client on a new invoice, the Client Snapshot shows how many days they typically take to pay and what they still owe.
Online payment closes the loop. Connect your own Stripe account and clients pay from a link on the invoice. The invoice marks itself paid, and you get an email when it happens.

Accepting a proposal doesn't create invoices for you. Once a client accepts, Create Project turns the proposal into a project with its name, client and budget, and you add the milestones or track time from there.