Brock Hartzler runs ProMover Accounting, a bookkeeping firm that exclusively serves local moving companies across the country. When we started working together, he was doing about $30,000 a month. Twelve months later, he crossed $92,000 a month in recurring revenue.

This is the story of the exact moves he made at each level — marketing, sales, and service delivery — to triple his firm in a year.

The Decision to Invest in Growth

Brock had built something solid. His product was good, his clients liked working with him, and he was growing organically. But he hit the point that most firm owners hit — the realization that improving your product by one or two percent was not going to deliver the growth he wanted.

He needed to start working on the firm instead of in it. And that meant figuring out how to build a real lead funnel.

Brock saw one of our ads at a moving industry conference, reached out, and we started building his first paid ad campaign. His mindset was simple: “I just needed to get in front of people.” He knew his service sold itself once prospects experienced it. The bottleneck was awareness.

What Happened When the Ads Launched

We built out a Facebook ad funnel and launched it in January. The results came fast — maybe a little too fast. Within the first month, we added roughly $7,000 in new monthly recurring revenue on about $4,000 to $5,000 in ad spend.

And then Brock had to shut the ads off.

Not because they weren’t working. Because they were working too well. He was getting 10 leads coming in but could only handle three or four onboardings a month. His SOPs weren’t built out, his hiring processes weren’t ready, and he didn’t have the capacity to service everyone.

This is the part nobody talks about. Your marketing can absolutely outpace your delivery if you’re not ready for it. And that’s exactly what happened.

Fixing the Path of Most Resistance

Brock used a phrase that stuck with me — “the path of most resistance.” As an entrepreneur, you’re always identifying and fixing whatever your biggest bottleneck is. First, it was lead flow. Once the ads solved that, the path of most resistance shifted to hiring and capacity.

So he went and fixed that. He built out better SOPs, got a CRM in place to manage the onboarding process, and started hiring. The talent shortage in the accounting industry made this harder than it needed to be, but he worked through it.

Once capacity was no longer the bottleneck, the path of most resistance shifted again — this time to sales. And then to pricing. And then to team management. That’s the cycle of scaling a firm. You solve one constraint and the next one reveals itself.

The Numbers That Matter

Here are the numbers that stand out from Brock’s story:

  • Monthly revenue: $30,000 to $92,000+ in 12 months
  • Monthly fee per client: $549/month for bookkeeping
  • Annual churn rate: Less than 1% per year — meaning virtually no clients leave voluntarily
  • Churn reason: The clients who do leave are almost always closing their businesses, not leaving because of service issues

Let’s do the math on that churn number. At less than 1% annual churn with a $549/month fee, the average client is worth over $6,500 a year and stays for years. One of Brock’s clients has been with him since inception — six years, somewhere between $30,000 and $45,000 in lifetime revenue from a single client.

That means Brock can afford to spend a lot to acquire a customer. When your lifetime value is that high, paying $1,000 to $3,000 to acquire a new client is a no-brainer.

The Ad Spend Reality Check

One thing Brock was candid about: the early days of ad spend are uncomfortable. You’re going to burn $5,000 to $10,000 while the algorithm learns who your ideal client is and where to find them.

He compared it to hiring a new employee. You spend money training them before they start producing. Meta ads work the same way. You’re investing upfront so the system can learn, and then it starts working for you.

The mistake most firm owners make is pulling the plug too early. They put $100 in, don’t get $200 back immediately, and decide ads don’t work. That’s like hiring someone, watching them struggle through their first week of training, and firing them because they haven’t generated revenue yet.

The Lesson for Every Firm Owner

The biggest takeaway from Brock’s story is this: your product doesn’t sell itself if nobody knows it exists. Brock had a phenomenal service — less than 1% annual churn proves that. But he was limited to organic growth and whatever referrals trickled in.

Paid advertising was the fastest way to buy awareness. And once he had awareness, his product did the rest.

But here’s the part that matters: he had to fix things in order. Marketing first to generate demand. Then capacity and hiring to fulfill that demand. Then sales processes to close at a higher rate. Then pricing to increase revenue per client.

You can’t do all of that at once. You find the path of most resistance, fix it, and move on to the next one.

If you’re an accounting firm owner sitting at $30,000 or $50,000 a month and you know your service is solid but your growth has stalled, the bottleneck is almost certainly not your product. It’s the fact that not enough of the right people know you exist. Fix that first, and be ready for what comes after.

Frequently Asked Questions

How much should a bookkeeping firm spend on Facebook ads?

Plan to invest $4,000 to $5,000 per month to start. Expect the first $5,000 to $10,000 to go toward training the algorithm — similar to training a new employee. Don’t pull the plug early. Once the system learns who your ideal client is, the returns compound quickly.

How do I scale a bookkeeping business past $30k per month?

The bottleneck is almost never your product — it’s awareness. Paid advertising is the fastest way to buy that awareness. But be ready: once leads start flowing, you’ll need to fix capacity, hiring, and sales in sequence. Solve one constraint at a time in the order they appear.

What is a good churn rate for a bookkeeping firm?

Brock Hartzler’s ProMover Accounting runs at less than 1% annual churn, which is exceptional. At that rate, clients stay for years and lifetime value climbs into the tens of thousands. Low churn means you can afford to spend more to acquire each new client, which fuels faster growth.

How long before Facebook ads work for accounting firms?

Give it at least 60 to 90 days. The first few weeks are about the algorithm learning who your ideal client is and where to find them. Most firm owners quit too early — they spend $100, don’t see $200 back immediately, and decide ads don’t work. That’s like firing a new hire after their first day of training.

Can bookkeeping firms use paid ads to get clients?

Absolutely. Brock Hartzler added $7,000 in new monthly recurring revenue in his first month of ads on about $4,000 to $5,000 in spend. The key is having a solid service first — paid ads buy awareness, but your product has to close and retain the clients once they show up.