Chasing Late Invoices: A Follow-Up System That Gets You Paid

Most small businesses have unpaid invoices sitting in their inbox right now. The trouble isn't that money is owed — that's normal — it's that nobody built a system to nudge those invoices forward. Without a cadence, invoices drift from "due soon" to "60 days late" to "awkward" without anyone noticing.

A simple aging-receivables routine fixes that. It's the cheapest collections tool you own, and it works whether you bill a handful of clients a month or hundreds.

What an Aging Report Actually Tells You

An aging report sorts every unpaid invoice into buckets based on how late it is: 0–30 days, 31–60, 61–90, and over 90. Pull it up in your bookkeeping software (QuickBooks, Xero, Wave, and most others build it in) and you'll see, at a glance, who owes you what and how long they've had it.

If most of your receivables live in the 0–30 bucket, you're healthy. If a chunk has slipped into 61–90 or beyond, you have a collections problem disguised as a cash-flow problem. The buckets tell you where to spend your attention.

Run this report the same day each week — Monday morning works for most owners. Pick a day and stick with it.

A Follow-Up Cadence That Works

The mistake most owners make is sending one reminder and then giving up out of awkwardness. Or the opposite: pestering every invoice on day three. Neither works. A predictable, escalating cadence does.

Here's a simple one to start with:

Day 1 (invoice sent): A clear, friendly email confirming what was sent, when it's due, and how to pay. Don't assume the invoice was opened.
Day 7–10 (past due): A short "just checking in" note. Friendly, no drama. Reference the invoice number and amount.
Day 30: A firmer message. State the balance, the original due date, and ask for a specific payment date.
Day 45: A phone call. Email stops working here. Keep the call short and assume good faith — people miss invoices, get busy, have their own cash crunch.
Day 60: A final written notice that mentions the late-fee policy and a date by which you expect payment.
Day 90: Decision time. Either send to collections, write off, or hand off to an attorney if the amount justifies it.

Write these templates once. Save them in a "collections" folder. Customize the invoice number and amount each time, send, move on.

When Late Fees Make Sense

Late fees work best when they're written into your original agreement or invoice terms, not introduced after the fact. If your contract has a late-fee clause and the client signed it, charging that fee is straightforward. If your terms are silent, adding a fee mid-stream feels like a surprise and can sour the relationship.

A reasonable, disclosed late-fee policy also acts as a filter: clients who intend to pay on time don't mind the clause. Clients who don't intend to pay on time reveal themselves early.

Writing Off Bad Debt

At some point, you'll decide an invoice isn't going to get paid. When you do, record it in your books as a write-off rather than letting it sit on your aging report forever.

The mechanics:

Create an expense account called "Bad Debt" (or use "Allowance for Doubtful Accounts" if you do accrual accounting).
Move the invoice amount from Accounts Receivable into that expense account.
Keep documentation — the original invoice, your follow-up emails, any response you got. If the debt ever gets paid later, you reverse the write-off and record the income.

This keeps your aging report honest and your books accurate. It also matters at tax time: in most cases, a debt you actually write off is the moment it becomes deductible for accrual-basis businesses. Cash-basis businesses generally only deduct amounts that have already been included in income and are clearly uncollectible, so the timing of the write-off matters — worth a quick conversation with your tax preparer if it's a meaningful amount.

Make the System Automatic

The real win is making the cadence part of how your business runs, not something you remember when cash gets tight. Turn the day-7 and day-30 messages into saved email templates. If your software supports automatic invoice reminders, turn them on — a polite nudge from the system is often more effective than one from you personally.

Then check the aging report weekly, glance at anything past 30 days, and act on it the same day.

That's it. No spreadsheets, no debt collectors for the small invoices, no awkward emails drafted from scratch at 11 p.m. Just a predictable rhythm that keeps money moving and lets you focus on the work that earned the invoice in the first place.

If staying on top of aging invoices, follow-ups, and write-offs feels like one more thing on a list that's already too long, that's exactly the kind of monthly work TwoDayBooks handles for small-business owners every month — clean books, a steady cadence, and money coming in on time.