“How much should we spend on Google Ads?” is usually answered with a guess, a round number or whatever a competitor says they spend. A better answer comes from your own numbers: what a customer is worth to you, how many leads you close, and what clicks cost in your market. This guide walks through the method we use for Jacksonville businesses, step by step, so you can work out a budget that fits your goals instead of guessing.

We deliberately don’t quote typical costs here. Costs per click vary enormously by industry, area and season, and any “typical” number would mislead more businesses than it helped. The method works with your real numbers.

Step 1: Work out what a new customer is worth

Start with the gross profit from a typical first sale, not the revenue. If customers come back or sign up for recurring service, you can use a conservative estimate of their value over a year or two instead. Call this number P.

Then decide how much of that you’re willing to spend to win a new customer. A common starting point is somewhere between a quarter and a half of first-sale profit; recurring-service businesses can often afford more. Call this share S. Your maximum cost per customer is P × S.

Step 2: Use your close rate to find a target cost per lead

Not every lead becomes a customer. If you close one in four leads, your close rate is 25%. Your target cost per lead is your maximum cost per customer multiplied by your close rate:

Target cost per lead = P × S × close rate

If you don’t know your close rate, track it for a month: count calls and form leads, and count how many become paying jobs. It’s the most overlooked number in local advertising, and it changes everything downstream.

Step 3: Estimate your conversion rate

Your conversion rate is the share of ad clicks that become leads (a call, form or booking). It depends heavily on your landing page, your offer and how well the ad matches the search. A fast, focused service page converts far better than a general homepage. If you’ve run ads before, use your own data; if not, start with a cautious estimate and replace it with real numbers after the first few weeks.

Step 4: Find the most you can pay per click

Maximum cost per click = target cost per lead × conversion rate

Now compare that with what clicks actually cost in your market. Google’s Keyword Planner shows estimated bid ranges for your keywords in Jacksonville or any area you choose. If the market rate is well above your maximum, you have three levers before giving up: improve your conversion rate (better landing pages), improve your close rate (faster follow-up, better sales process), or narrow targeting to the most profitable searches and areas.

Step 5: Set the monthly budget from the customers you want

Leads needed = customers wanted ÷ close rate

Monthly budget = leads needed × target cost per lead

Then sanity-check it: is the budget enough to buy a meaningful number of clicks at market rates? A budget that only buys a handful of clicks a day won’t give Google’s bidding enough data to learn, and you won’t learn much either.

A worked example

Imagine a Jacksonville home service company. Using P for the gross profit on one typical job:

In plain terms: this company should budget about 2.4 times the gross profit of one typical job each month to win six new customers, and it can afford clicks up to 0.8% of one job’s profit. If the Keyword Planner shows clicks in its trade cost more than that, the first fix is the landing page: lifting conversion from 8% to 12% raises the affordable cost per click by half without changing anything else.

How Google spends a daily budget

Google Ads budgets are set as an average daily amount. On busy days Google can spend up to twice your average daily budget, but over a month it won’t charge more than your daily budget multiplied by the average number of days in a month (30.4). Set the daily budget as your monthly target divided by 30.4, and don’t be alarmed by individual high days.

Splitting the budget

• Put most of it on your most profitable services first. A separate campaign for each core service keeps one expensive keyword from swallowing everything.
• Keep brand searches separate. They’re cheap and convert well, and mixing them in hides how non-brand campaigns are really doing.
• Consider Local Services Ads if you’re eligible; they’re priced per lead, which makes the cost-per-lead math above even more direct. See Google Ads vs Local Services Ads.
• Follow the season. In Northeast Florida that might mean more for AC and roofing in summer and storm season, or around holidays and events for St. Augustine tourism.

Review it after 60–90 days

Your first budget is an informed estimate. After two to three months of clean conversion tracking, replace every assumption with real data: actual cost per click, actual conversion rate, actual close rate. Then raise the budget on campaigns hitting your target cost per lead and cut or fix the ones that aren’t. If spend isn’t turning into leads, check for the common Google Ads mistakes before adding more money.

Getting help

We build every Google Ads account around a target cost per lead worked out this way, and our team holds every current Google Ads certification. If you already run ads, a Google Ads audit will show whether your current budget is doing its job. For businesses in premium markets like Ponte Vedra Beach, tight targeting can make a smaller budget go further than expected. Comparing channels too? See SEO vs Google Ads and Google Ads vs Facebook ads.

Frequently asked questions

Get help setting your budgetCall (904) 574-9775