The Hidden HighLevel Rebilling Trap That Can Cost HighLevel White Label Agencies Thousands

Most HighLevel agency owners focus on:

• Selling sub accounts
• Recurring revenue
• White labelling
• Automation
• AI tools
• Client retention

But there is another side to running a SaaS-mode agency that people do not talk about enough:

Hidden billing traps.

And the scary part is that many of these issues remain invisible until the numbers become painful.

Recently, I experienced one of these problems personally when a client generated approximately $2,700 in WhatsApp marketing messaging revenue.

The client was happy.
The system worked perfectly.
Messages were sending exactly as intended.

But when I checked the actual rebilling setup and profit margins, I realised something alarming:

After costs, fees, and VAT, I had effectively made almost nothing.

In fact, I was arguably out of pocket.

That experience made me realise there are actually three separate hidden billing dangers that HighLevel agencies need to understand.

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Part 1. The Hidden SaaS Subscription Billing Trap

This is probably the most fundamental billing danger of all.

The client uses the platform.
But they are not actually paying correctly for the SaaS subscription itself.

How This Happens

This can happen surprisingly easily for a sub account when:

• SaaS mode was not fully configured
• Stripe integration was incomplete
• A sub account was manually created outside the SaaS configurator
• A trial expired but never converted properly
• Failed payments were missed
• A “temporary” free account accidentally stayed active
• Subscription products were not mapped correctly

The result?

The client either:

• Pays nothing
• Pays the wrong amount
• Or continues on old pricing that no longer makes commercial sense

One of the Biggest Dangers. Inconsistent Sub-Account Creation

One thing I have personally found with HighLevel is that there are multiple ways a sub-account can be created.

Some accounts may be created:

• Manually by staff
• Automatically through SaaS mode
• Via snapshots
• Through onboarding workflows
• Directly inside Agency View
• Using different team processes over time

And this is where things can become dangerous.

If you have team members who are not fully experienced with:

• HighLevel SaaS mode
• Stripe integration
• SaaS configurator settings
• Subscription products
• Rebilling configuration

Then it becomes very easy to accidentally create a live client sub-account that is not correctly connected to the monthly subscription billing.

The result?

The client happily uses the platform every month while the agency unknowingly absorbs the cost.

And because HighLevel is so flexible, these inconsistencies can quietly creep into agencies over time, especially as teams grow.

My Recommendation. Standardise the Entire Process

My solution to avoid this problem is simple:

Create one standardised way of setting up sub-accounts and do not deviate from it.

In other words:

Create a Standard Operating Procedure (SOP) for new sub-account creation.

That SOP should include:

• How sub-accounts are created
• How SaaS subscriptions are attached
• How Stripe is verified
• How rebilling is configured
• How snapshots are applied
• How onboarding is handled
• How accounts are tested before going live

The key is consistency.

Because if different staff members create accounts in different ways, eventually billing inconsistencies will appear.

And often you do not discover the problem until months later when reviewing subscriptions, failed payments, or agency costs.

For agencies scaling beyond just one person, having a documented and repeatable setup process becomes essential.

Not just for operational efficiency, but for protecting profitability.

Why This Is Dangerous

Because it is easy to miss.

Agencies get busy:

• Onboarding clients
• Building automations
• Running campaigns
• Supporting customers

Meanwhile, a sub-account quietly continues costing the agency money every single month.

If you have dozens or hundreds of accounts, even a few incorrectly configured subscriptions can quietly destroy margins over time.

I heard one example of a company with thousands of subscriptions being collected each month. The owner of the company assumed the accounting staff understood the subscription billing system and that they were keeping an eye on it. They were not – and the system broke and was not collecting payments for a year. The first the business owner knew about it was when there was a £750,000 hole in the bank account and the tax man was waiting to get paid. So it is very important to keep and eye on subscription payments coming in.

What Agencies Should Audit

At least monthly, agencies should check:

• Active SaaS subscriptions
• Failed payments
• Trial conversions
• Legacy pricing
• Stripe connection status
• Manual sub-accounts
• Cancelled accounts still left active

Because recurring revenue only works properly if the recurring billing is actually functioning correctly.

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Part 2. The Hidden Rebilling Trap for Agency Usage Costs

This was the issue that triggered this article.

One of our clients had started heavily using WhatsApp marketing messaging inside HighLevel.

Everything appeared fine.

Until I checked the numbers.

The client had generated approximately $2,700 in WhatsApp messaging revenue.

Yet the actual margin I made was tiny – the default 1.05x mark up.

And because I am VAT registered here in the UK, HMRC also takes 20% VAT from the money the client pays me.

So when you combine:

• HighLevel service usage costs
• Transaction fees
• VAT
• Small rebilling margins

I was effectively making almost nothing.

Possibly even losing money.

The Problem With Rebilling in HighLevel SaaS Mode

This is where many agencies get caught out.

There is often an assumption that when HighLevel introduces new billable services, older sub-accounts automatically inherit the latest rebilling markup settings.

But that does not always happen.

So when HighLevel launches services such as:

• WhatsApp Messaging
• Voice AI
• Workflow AI
• Conversation AI
• Email Verification
• Premium Actions
• Reviews AI

Older sub-accounts may not automatically have rebilling markups correctly configured.

That means:

• The agency wallet gets charged
• The client uses the service
• But the agency does not fully recover the costs

Why Older Sub-Accounts Become Dangerous

The dangerous accounts are often the older ones.

You assume:

“The SaaS configurator already handled that.”

But older sub-accounts can quietly retain old default rebilling markups (1.05x) from when they were first created.

So clients actively using:

• WhatsApp
• SMS
• AI tools
• Phone systems
• Premium workflow actions

May not actually be rebilled the correct markup rate.

And because usage can grow rapidly, the financial leak can become substantial before the agency notices.

The VAT Problem Makes It Worse for UK Agencies

This is particularly painful for UK agencies.

Because even if the client pays you, HMRC still takes 20% VAT from the revenue.

So if your rebilling margins are incorrect, you can end up in the absurd situation where:

• The client paid you
• HighLevel charged you
• HMRC taxed you
• And you lose money

That is why checking on your rebilling numbers is not just an admin setting.

It is a profitability protection system.

The Bulk Rebilling Tool Saved Me Hours

One feature I found incredibly useful was HighLevel’s Bulk Rebilling Tool.

When I discovered one older account was still using an outdated 1.05x markup instead of the newer 1.5x markup structure, alarm bells started ringing.

Because if one account had outdated settings, there was a good chance many other older sub-accounts did too.

And when you have dozens or hundreds of accounts, manually checking each one becomes unrealistic.

So instead, I used the bulk rebilling functionality.

I selected all sub-accounts and applied the updated 1.5x markup across the board.

That was significantly faster and dramatically reduced the risk of older accounts quietly sitting on outdated rebilling structures.

How to Use the Bulk Rebilling Tool

In the past, fixing this meant painstakingly clicking into Manage Client for every single sub-account to toggle the new feature on. Fortunately, HighLevel introduced a Bulk Rebilling feature to solve exactly this problem.

You can now push rebilling updates for new services to all of your existing sub-accounts at once.

How to Bulk-Enable Rebilling for New Services:

1. Navigate to the Agency View: Go to your Sub-Accounts tab.

2. Select Your Clients: Check the boxes next to the sub-accounts you want to update (you can use filters or just click “Select All” for a large batch).

3. Open Bulk Actions: Click the Bulk Actions menu in the upper-right corner and select Enable Rebilling.
4. Configure the Markups: A modal will pop up listing all usage-based services (Phone, Email, AI, Premium Triggers, etc.). You can now find the new service that was recently introduced and set your markup slider specifically for that feature.

5. Confirm: Click Enable Rebilling to push the update.

Note: If a client already has a card on file, the new rebilling rule takes effect immediately. If they don’t have a card on file yet, the markup is saved and will automatically trigger the moment they add one.

That single action can potentially save:

• Hours of admin
• Lost revenue
• Billing inconsistencies
• Hidden agency costs

Even so, I would still recommend manually spot-checking:

• High-volume messaging accounts
• AI-heavy accounts
• WhatsApp users
• Large database clients
• Accounts running large automations

Because those are usually where usage costs escalate fastest.

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Part 3. The Hidden SMS Cost Trap Clients Do Not Understand

There is another side to this problem.

Sometimes the agency is not the only one surprised by billing.

Sometimes the client is too.

UK SMS Costs Are Higher Than Many Clients Expect

In the UK, SMS messaging through Twilio and LeadConnector is relatively expensive compared to many other countries.

A typical UK SMS may cost the agency around:

• £0.04 per text

Now add a reasonable agency markup of 1.5x and the client pays:

• Around £0.06 per text

That may already feel expensive to some clients.

The problem is that many business owners are psychologically conditioned by:

• Unlimited personal texts
• WhatsApp
• iMessage
• Messenger apps

So they often think SMS is basically free.

But commercial SMS infrastructure works very differently.

Every message segment is billable.

The 160 Character Rule Most Clients Do Not Know About

A standard SMS message only contains:

• 160 characters

If the message goes longer than that, it gets split into multiple message segments stitched together.

For example:

• A short message under 160 characters = 1 segment
• A 500 character message = approximately 4 segments

So what the client thought was:

• One £0.06 text

Is actually:

• Four segments costing around £0.24

Emojis and Special Characters Make It Worse

Now add emojis or special characters into the mix.

This is incredibly common because clients naturally write messages the same way they text friends and family.

But emojis and certain symbols force the message into Unicode encoding.

And Unicode messages only allow:

• 70 characters per segment

Now that same 500 character message becomes:

• Approximately 8 segments

So what the client thought cost:

• £0.06

May actually cost:

• Around £0.48

And when thousands of texts are being sent through:

• Campaigns
• Automations
• Reminders
• Reactivation sequences
• Missed-call text-back workflows

The costs can escalate extremely quickly.

Why Agencies Must Educate Clients Early

This is why agencies should explain upfront:

• SMS segment billing
• Character limits
• Unicode/emojis
• Message splitting
• Automation volume
• Rebilling pricing

Otherwise:

• Clients get invoice shock
• Agencies get blamed
• Support tickets increase
• Margins disappear
• Relationships become strained

The irony is that the clients getting the best automation results are often generating the highest messaging costs.

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Thinking of Starting a HighLevel White Label Agency?

This is exactly why we created the HighLevel SaaS Entrepreneur Programme.

One of the biggest challenges new agencies face is not the software itself.

It is understanding:

• How SaaS billing works
• How rebilling works
• How to avoid hidden costs
• How to configure Stripe correctly
• How to protect agency margins
• How to standardise onboarding and setup processes

Because as this article demonstrates, small billing mistakes inside HighLevel can quietly become very expensive.

The goal of the programme is to help agency owners avoid these common pitfalls when launching and growing a HighLevel SaaS agency.

You can join the programme for free using our affiliate sign-up link below:

Learn more about the HighLevel SaaS Entrepreneur Programme and sign up here.

Whether you are just getting started or already running a white label agency, the programme is designed to help you build a more profitable and scalable HighLevel business.

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Final Thoughts

HighLevel is an incredibly powerful platform.

But SaaS-mode agencies need to understand that there are multiple hidden financial risks operating underneath the surface.

The three biggest are:

1. SaaS subscriptions not configured correctly
2. Usage rebilling not configured correctly
3. Clients not understanding SMS billing mechanics

If ignored, these problems can quietly:

• Destroy margins
• Create billing disputes
• Cause client frustration
• Turn successful accounts into unprofitable ones

So if you run a HighLevel agency, I would strongly recommend auditing:

• SaaS subscriptions
• Rebilling settings
• SMS markups
• Older sub-accounts
• AI usage
• WhatsApp usage
• Client messaging behaviour

Because sometimes the most dangerous costs are the ones you do not notice until months later.

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Written by Julian Mills. HighLevel consultant and marketing strategist.

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