Wave Payment Reminders Not Sending? Common Causes and Fixes

You set up automatic reminders in Wave so you would never have to send another awkward "just checking in" email, and then an invoice quietly slid past its due date with no nudge, no payment, and no idea what went wrong. It is a frustrating place to be, because the whole point of turning reminders on was to stop thinking about this.

The good news is that when Wave reminders are not sending, it is almost always one of a small handful of fixable causes, not a mysterious bug. Wave's reminder system has a few specific requirements, and if any one of them is missing, the reminder silently never goes out. Once you know what those requirements are, the fix usually takes a couple of minutes.

This guide walks through the most common reasons Wave payment reminders stop sending, in roughly the order worth checking them, plus a quick checklist you can run the next time an invoice goes quiet. The aim is to get your reminders flowing again and, just as importantly, to help you trust that they will keep firing without you watching.

The Short Answer

If your Wave reminders are not sending, check these four things first: your plan and payment setup (reminders require Wave's Pro Plan or having online payments enabled), whether the invoice was actually marked as sent, whether the customer has a valid email saved on their profile, and whether you switched reminders on before the invoice went out rather than after. One of those four is the culprit the vast majority of the time.

How Wave's Automatic Reminders Are Supposed to Work

Before troubleshooting, it helps to know what "working" looks like. Inside Wave you can schedule automatic reminders that go out a set number of days before and after an invoice's due date, with common options at three, seven, and fourteen days on either side. You turn these on from Settings, under Invoices and estimates in the Sales and Payments area, where you check the boxes for the timing you want, according to Wave's own help documentation.

Two details from that setup matter for troubleshooting. First, reminders are only sent to the primary email saved on the customer's contact profile, so anyone you normally cc by hand will not be reminded automatically. Second, changes you make to your reminder settings apply to new and existing invoices that have not yet been marked as sent. That single rule is behind a surprising number of "why didn't it send" moments, and we will come back to it.

Common Cause 1: Your Plan Doesn't Include Scheduled Reminders

Scheduled, automatic reminders are not available on every Wave setup. To schedule and send them, your business needs to either accept online payments through Wave or be on Wave's Pro Plan. If you are on the free Starter experience and have not switched on online payments, the reminder checkboxes may appear unavailable, or reminders simply will not fire even if the rest of your setup looks correct.

This is the first thing to rule out because it explains the most baffling version of the problem, where everything seems configured but nothing ever sends. Open your plan and payments settings and confirm that you are either on the Pro Plan or have online payments enabled. If you are not, that is your answer, and you can decide whether upgrading or a separate reminder approach makes more sense for how you bill.

Common Cause 2: The Invoice Was Never Marked as Sent

Wave only schedules reminders against invoices it considers sent. If you created an invoice but delivered it some other way, by downloading a PDF and emailing it yourself, or handing it over in person, Wave does not know the clock has started, so it never queues a reminder.

The fix is to open the invoice and mark it as sent, or to send it through Wave in the first place so the reminder schedule attaches automatically. Going forward, the simplest habit is to let Wave deliver the invoice email rather than sending it from your own inbox, which keeps the reminder timeline tied to the invoice without any extra steps from you.

Common Cause 3: The Customer Has No Email (or the Wrong One) on File

Reminders go to the primary email on the customer's profile, and only that address. If a client was added without an email, or the address has a typo, or it points to an inbox nobody checks, the reminder has nowhere useful to land. Wave will not warn you that the message bounced into the void.

Open the customer profile and confirm the primary email is present and correct. If your contact at the client has changed, or the invoice really needs to reach the accounts team rather than your day-to-day contact, update the primary email so the automatic reminder reaches the person who can actually approve the payment. For any extra recipients beyond the primary address, you will still need to follow up manually.

Common Cause 4: You Switched Reminders On After the Invoice Went Out

This is the rule from earlier, and it trips up almost everyone at least once. Reminder settings apply to invoices that have not yet been marked as sent. So if you sent an invoice on Monday, then turned reminders on Wednesday because it was already overdue, that particular invoice will not pick up the new schedule. The setting only governs invoices going forward.

For invoices already out the door, your options are to send a manual reminder for that one or to adjust the reminders directly on the individual invoice where possible. The lasting fix is to switch your reminder defaults on once, before you start sending, so every future invoice inherits the schedule automatically and you never have to remember again.

Common Cause 5: The Reminder Sent, But Landed in Spam

Sometimes the reminder is doing its job and the client genuinely never saw it. Automated emails can land in spam or promotions folders, especially if the client's mail system is strict or has never received mail from your Wave address before. From your side it looks like nothing sent; from theirs it looks like you never followed up.

Check the invoice's activity to confirm whether the reminder was actually sent. If it was, ask the client to check their spam folder, and consider a short personal note from your own inbox as a backup. A reminder that delivered but was never opened is, in practice, the same as one that never went.

A Quick Checklist to Get Reminders Flowing Again

The next time a Wave reminder does not show up, run through this short list in order. Most of the time you will find the cause before you reach the bottom:

Confirm you are on the Pro Plan or have online payments enabled.
Open the invoice and make sure it is marked as sent.
Check that the customer profile has a correct primary email.
Verify reminders were switched on before the invoice was sent.
Look at the invoice activity to see whether a reminder already went out.
Ask the client to check spam or promotions if Wave shows it as sent.

If you have worked through all six and reminders still are not behaving, it is worth contacting Wave support with the specific invoice in hand, because at that point you are likely looking at an account-level detail rather than a settings mistake. For a fuller walkthrough of getting the feature configured cleanly from the start, see our guide to setting up payment reminders in Wave.

When the Problem Isn't Wave, It's the Gap Wave Leaves

Once you have fixed the immediate issue, it is worth noticing the pattern behind most of these causes. Wave reminders only work on invoices created and sent inside Wave, only reach the one primary email, and only fire on the fixed schedule you set in advance. That covers the tidy invoices and quietly skips the messy ones: the client you billed through a contract tool, the project you tracked in a spreadsheet.

If you bill through more than one tool, or you have noticed that a templated, no-reply email rarely moves your slowest payers, the real fix may not be inside Wave's settings at all. It may be a dedicated follow-up layer that watches every invoice regardless of where it was created. A reminder tool like DueDrop sits alongside Wave and your other billing tools and sends friendly, human-sounding follow-ups on the invoices you choose, so a gap in one system's automation does not turn into a gap in your cash flow. You can read more about closing that gap in how to automate invoice follow-ups without switching accounting software.

Frequently Asked Questions

Why are my Wave invoice reminders not sending at all?

The most common reasons are that your plan does not include scheduled reminders (you need the Pro Plan or online payments enabled), the invoice was never marked as sent, the customer has no valid primary email on file, or you turned reminders on after the invoice had already gone out. Check those four first, because one of them is almost always the cause.

Does Wave require a paid plan to send automatic reminders?

To schedule and send automatic payment reminders, your business needs to either accept online payments through Wave or subscribe to Wave's Pro Plan. If you are on the free experience without online payments, scheduled reminders may not be available, which is why they can appear configured but never fire.

Will Wave send a reminder for an invoice I sent before turning reminders on?

No. Reminder settings apply to invoices that have not yet been marked as sent, so an invoice that went out before you enabled reminders will not automatically pick up the new schedule. You will need to send a manual reminder for that invoice, and switch your reminder defaults on before sending future invoices.

Can Wave remind more than one contact at a client?

Automatic reminders are only sent to the primary email saved on the customer's profile. If you need to reach an additional contact, such as a separate accounts payable address, you will need to send that reminder manually or update the primary email to the person who can approve the payment.

Key Takeaways

Wave reminders silently fail when a requirement is missing, so the fix is usually a quick settings check, not a bug report.
Scheduled reminders need the Pro Plan or online payments enabled, an invoice marked as sent, and a valid primary email on the customer.
Reminder settings only apply to invoices not yet marked as sent, so switch them on before you send, not after.
If a reminder shows as sent but nothing happened, check the client's spam folder before assuming the feature is broken.
Because Wave only chases invoices created inside it and only on a fixed schedule, a separate follow-up layer can cover the invoices it leaves out.