Marketing Budget Planning 2025: CLV Strategy:CAC, 60/40 & Marginal Analysis

I. Strategic Landscape 2025: Budget Planning in an Era of Turbulence

Marketing budget planning in a volatile market context is no longer an administrative task, but has become a strategic problem to determine the direction and sustainable profitability of the business. In 2024, Chief Marketing Officers (CMOs) are already facing unprecedented pressure. A report from Gartner indicates that the ratio of marketing budget to total revenue is trending downward, forcing 75% of CMOs to tackle the challenge of "doing more with fewer resources".

1.1. Pressure to Optimize and Shift Investment Paradigm

Pressure to reduce costs forces the marketing department to change its core perception: converting from a cost center position (Cost Center) to a capital investment center (Capital Investment). This spend should be considered as an investment that creates long-term intangible assets such as Brand Equity and Customer Lifetime Value (CLV).

This shift is a direct result of financial pressure from the executive level (Top-Down). When capital is tight, traditional budgeting methods such as Percentage-of-Revenue become ineffective because they lack flexibility and are not directly linked to specific business goals. This lack of flexibility can lead to negative consequences: long-term investments like Branding, which do not provide immediate ROI, will be cut first. This, in the long run, will increase future customer acquisition costs (CAC), placing a greater burden on sustainable growth.

To maximize performance in the context of tight budgets, the application of advanced MarTech (Marketing Technology) is mandatory. AI and Big Data-based tools enable marketers to perform automation, more accurate forecasting, and real-time performance analysis, enabling more agile, data-driven planning models.  

1.2. Technology Platform: Tan Phat Digital's Role in Digitalization

The application of complex budget planning frameworks such as Multi-Touch Allocation (MTA) and Marginal Analysis requires a solid digital infrastructure, especially an effective data collection and analysis system.

Businesses need a reliable digital platform, from high-speed, SEO-standard websites to integrated systems. helps track the customer journey throughout. In this context, partners like Tan Phat Digital play an important role. With expertise in designing professional websites with SEO standards and providing business digitalization solutions, Tan Phat Digital helps companies build a solid foundation to collect and analyze performance data, thereby supporting all budget planning decisions based on accurate data. This is a prerequisite for transitioning from manual budget planning to strategic and data-driven planning.  

II. Financial Performance Evaluation Framework: The Foundation of Every Budget Decision

Every effective marketing budget plan must start with an assessment of core financial metrics to determine current performance and profitability potential.

2.1. Core Financial Value Analysis (CAC and CLV)

The two most important metrics that shape the spending ceiling and sustainability of a business model are Customer Acquisition Cost (CAC) and Customer Lifetime Value (CLV).

• CAC (Customer Acquisition Cost): Is the total marketing and sales costs needed to attract a customer new.

• CLV (Customer Lifetime Value): Is the total average profit value that a customer brings throughout the relationship with the business.  

For a more in-depth assessment, CLV should be analyzed based on advanced components, including Average Purchase Value (AOV), Average Purchase Frequency (APF), and Average Customer Lifespan. Analyzing these factors helps marketers identify strategic levers to add value (for example, increasing AOV through Upselling, or increasing APF through customer care programs).  

Financial goals are considered reasonable when CLV is greater than 3 times CAC (CLV > 3x CAC). This ratio not only ensures profitability but also shows that the business model is sustainable and scalable, while also providing a clear financial ceiling for any investment decisions that attract customers.

2.2. Optimize ROI with Multi-Touch Attribution (MTA)

Relying solely on single ROI or single-touch models (like Last-Click Attribution) is a common financial mistake. The Last-Click model only gives credit to the last interaction before conversion, skewing the assessment of the effectiveness of top-of-funnel (TOFU) channels such as content, SEO, or branding. As a result, branding activities, despite their vital role in generating demand, are often undervalued and vulnerable to budget cuts.  

Multi-Touch Attribution (MTA) solves this problem by assigning conversion credit to every interaction a customer makes along the purchase journey. This allows businesses to better understand the collaborative role of each channel—for example, whether a social media post is the first touch point that leads to a subsequent Paid Search conversion.  

MTA provides a comprehensive view, helping marketers optimize budget allocation. Without using MTA, Brand Building programs (60% of the recommended budget) will not be able to prove their ROI value, leading to marketers being forced to put their budget into Performance (40%) to prove short-term results, risking long-term brand weakness.  

By using strategic MTA models (like Linear, Time Decay, or W-Shape), marketers can accurately determine which channels are helping to reduce overall CAC, thereby allocating appropriate resources to top and middle of the funnel activities.

Marketing Financial Performance Analysis Framework (List Form)

• Only number: CAC (Customer Acquisition Cost)

  • Measurement Objective: Total cost to attract a new customer.

  • Target Rate: The lower the better.

  • Planning Application: Short-term cost control and conversion efficiency channels.

• Metrics: CLV (Customer Lifetime Value)

  • Measurement Objective: Total customer value delivered throughout the life cycle.

  • Target Rate: The higher the better.

  • Planning Application: Determine CAC investment ceiling and Long-Term Business Value.

• Metric: CLV:CAC Ratio

  • Measurement Objective: Relationship between Value and Acquisition Cost.

  • Target Ratio: > 3:1 (Ideal).

  • Planning Application: Confirmation sustainability of the business model; Capital allocation guidance.

• Indicators: Attribution Model

  • Measurement Target: Method for assigning credits to touch points.

  • Target Rate: Multi-Touch Attribution.

  • Planning Application: Assessment Accurately evaluate the ROI of Brand (TOFU) and Performance (BOFU) channels.

III. Modern Marketing Budget Planning Models

In a changing context, choosing the appropriate planning model is a key factor. Currently, there are two main approaches: Top-down (From top down) and Bottom-up (From bottom up).

3.1. Analyzing the Budgeting Model

• Top-down Budgeting (Top-down): Management or the finance department produces the overall budget. This method is suitable when businesses need to strictly control costs. Typical examples are Percentage of Revenue and Competitive Parity.  

• Bottom-up Budgeting (Bottom-up): The marketing department proposes a budget based on specific costs to carry out the necessary actions to achieve the goals. This method facilitates creative and flexible thinking, and is suitable for businesses with a strong growth orientation. A typical example is Objective-based budgeting.  

3.2. In-depth Analysis of 5 Popular Methods

1. Based on Percentage of Revenue

This top-down method determines the budget as a fixed percentage of total expected revenue (for example, 5% or 10%). Common investment ratios range from 5% to 20% of total revenue, of which 5-10% is usually used to maintain market share, and 11-20% to promote growth.  

• Advantages:

  • Easy to forecast and calculate, suitable for businesses with limited resources.

  • Ensure spending is proportional to actual scale of operations.  

• Limitations:

  • Inflexibility: If revenue declines, the budget is also cut, making it difficult to reverse the trend.

  • Not tied to specific goals, easy to miss breakthrough opportunities if not investing enough.

2. Objective-based budgeting

This is the most strategic Bottom-up method, requiring marketers to calculate backwards from the final goal (for example, generating 500 leads) to determine the necessary budget.  

• Advantages:

  • Budgets are directly linked to business goals, ensuring all spending is targeted.  

  • Easy to control investment effectiveness and prove the value of marketing.

• Limitations:

  • Requires performance data system (CPA, ROAS, Conversion Rate) to be accurate to estimate the required investment.

3. Competitive parity

This Top-down method is based on referencing the spending or media presence of competitors of similar size to ensure the brand is not "sunk".

The core principle of this method is the relationship between Share of Voice (SOV) – the ratio of media investment – and Share of Market (SOM) – actual market share. This relationship is called Excess Share of Voice (eSOV), which is a leading indicator of future performance:  

• If SOV > SOM (positive eSOV): The brand is overinvesting in communications to dominate the market, expected to grow its market share over the long term.  

• If SOV < SOM (negative eSOV): Risk of narrowing market share due to insufficient presence to maintain competitive position. Businesses are required to consider increasing their budget.  

• Limitations:

  • Easily leads to dependent thinking, lack of proactive market leadership.

  • Does not properly reflect internal strategy or own financial potential.

Successful budget planning requires optimal combination. Marketers need to ensure that the costs necessary to achieve KPI (Objective-Based) goals are also enough to maintain or expand eSOV (Competitive Parity).

4. Allocating budget according to Marketing Funnel (TOFU - MOFU - BOFU)

This is a strategic Bottom-up approach, allocating budget according to each stage of the customer journey to optimize channel efficiency:

• TOFU (Top of Funnel - Awareness): Accounts for about 40-50% of the budget. Focus on display and exposure through channels such as social organic, ads awareness, and PR.

• MOFU (Middle of Funnel - Consideration): Accounts for about 30-40% of the budget. Focus on lead generation, email nurturing, and remarketing.

• BOFU (Bottom of Funnel - Conversion): Accounts for about 10-20% of the budget. Focuses on orders, paid search revenue, direct sales, and sample products.

This model requires the ability to use Multi-Touch Attribution to demonstrate the indirect value of TOFU/MOFU spend to BOFU KPIs.

5. Hybrid/Flexible budgeting model

This is a solution that combines the control of Top-down methods (Percentage of Revenue) with the flexibility of Objective-Based (Bottom-up).

• Advantages:

  • Flexibly adapt to market changes.

  • Allows to optimize resources at the right time, for example: promoting performance during peak season and investing in branding during the branding stage.

  • Suitable for industries with rapid change or highly competitive environments.

IV. ROI Optimizing Budget Allocation Strategy (The 60/40 Rule & Marginal Analysis)

4.1. Balancing Long-Term and Short-Term: 60/40 Rule

To achieve sustainable growth, businesses need to balance Brand Building (long-term brand building) and Sales Activation (stimulating short-term sales). Research by Les Binet and Peter Field has determined the golden ratio for long-term effectiveness to be 60% Brand Building and 40% Sales Activation.  

• Impact of Brand Building (60%): Does not create an immediate sales boost, but raises the revenue base over time, while reducing acquisition costs (CAC) in the long term.  

• Impact of Sales Activation (40%): Creates quick sales peaks, but the effect declines quickly if not maintained.

Short-term pressure from management can cause marketers to put 80-90% of their budget into Performance. While this provides immediate ROI, it weakens Brand Equity, causing customer acquisition costs to skyrocket over the following 1-2 years, creating a major financial risk for sustainable growth.

4.2. Contextual Flexing Framework

The 60/40 ratio is a baseline and should be flexibly adjusted based on the strategic and industry context.  

Adjust Brand/Performance Budget Ratio according to Context

• Context 1: Long-term Growth Goal (Baseline)

  • Priority Ratio (Brand : Performance): 60% : 40%

  • Reason for Adjustment correction: Build Mental Availability to reduce switching costs later.  

(Brand) is higher when customers make decisions.  

4.3. Marginal Analysis: The Key to 40% Performance

Marginal Analysis is the most effective optimization tool for 40% Performance budget. It evaluates the costs and benefits of a small incremental change (e.g. spending an extra marketing dollar).  

The core difference is that Marginal Analysis focuses on the tipping point, where diminishing returns begin. Marketers must continually monitor to determine when the Marginal Cost of generating an additional unit of profit begins to exceed Marginal Revenue.  

Applying Marginal Analysis allows businesses to stop investing in a channel or campaign as soon as it reaches saturation point, ensuring that every dollar spent on Performance brings maximum ROI, avoiding wasting resources.

V. Execution Factors and the Future of the 2025 Marketing Budget

5.1. Managing Strategic Flexibility and Contingency

1. Innovation Budget

To continuously update trends and explore potential growth opportunities, businesses should spend about 5-10% of their overall budget on testing new channels, creative advertising formats, or MarTech technology. This is an important investment in staying competitive.  

2. Allocation by Operating Cycle and Season

Marketing budget should not be fixed throughout the year. There should be great flexibility between quarters. During peak periods (for example: Tet holiday, Black Friday, tourist season), it is necessary to increase Performance investment to take advantage of available market demand. On the contrary, during off-peak times, you should focus on optimizing the system, content, CRM and Brand Nurturing.  

3. Track and Adjust Budgets in Real Time

Markets change rapidly, especially in the digital environment. Effective monitoring of each channel by week or month, instead of keeping it fixed for the entire quarter or year, helps businesses flexibly adjust cash flow and promptly cut ineffective spending.

5.2. The Role of Artificial Intelligence (AI) and Big Data in Planning 2025

Technology is an indispensable factor to solve the challenge of "doing more with less resources".

1. Enhance Forecasting Accuracy

AI and Big Data help forecast financial trends and planning with high accuracy, increasing forecasting efficiency up to 76%. This accuracy is the foundation for Objective-Based Budgeting, minimizing the risk of misestimating customer acquisition costs (CPA/CPL).  

2. Supports Real-Time Edge Analytics

AI is capable of processing huge amounts of data quickly (reducing data processing time by up to 50%). This allows marketers to perform real-time Marginal Analysis, continuously optimizing their marketing portfolio by identifying channels to expand and channels to reduce investment.  

2025 Marketing budget planning requires a shift from cost thinking to strategic investment thinking, driven by data. Successful marketers will be those who adopt a hybrid model, using advanced frameworks to balance short-term performance and sustainable growth.

The key to ensuring efficient use of investment capital lies in four core principles:

1. Establish and maintain financial sustainability with a CLV:CAC ratio > 3:1.

2. Prioritize the Objective-Based model (based on goals) combined with SOV/SOM analysis to ensure competitive position.

3. Adhere to a balance of 60% Brand Building and 40% Sales Activation, and flexibly adjust according to market context.

4. Perform dynamic optimization for Performance spending through Marginal Analysis to avoid yield reduction.

2025 Strategic Budget Planning with Tan Phat Digital

Applying complex frameworks such as Multi-Touch Attribution, SOV/SOM Analysis and Marginal Analysis requires a powerful digital platform and advanced data analysis capabilities. Tan Phat Digital is a partner specializing in providing professional website design solutions with SEO standards and effective digital platform systems.  

Contact our team of experts Tan Phat Digital today to receive in-depth advice on budget strategy, digital platform optimization, and turning marketing into a sustainable, profitable investment solid.

VII. Frequently Asked Questions (FAQ)

Does the 60/40 ratio apply to B2B?The 60:40 ratio is a starting point drawn from fast-moving consumer goods (FMCG) industry data. For industries with complex, high-value buying cycles like B2B and Financial Services, the ratio often needs to lean more heavily toward Brand Building (perhaps 70–80% Brand). The reason is that major purchasing decisions require deep conviction and greater mental availability when the customer makes the final decision.  

How to measure Brand Building ROI? Brand Building ROI is measured through indirect and long-term metrics, as it does not create instant conversions. Key metrics include: Share of Voice (SOV), Platform Sales Growth, and long-term customer acquisition cost (CAC) reduction. Multi-Touch Attribution is the required technical tool to accurately attribute this conversion support value.

How is the ROI-Based model different from Marginal Analysis?The ROI-Based model is often based on calculating the average or overall ROI of a campaign or channel (e.g. total ROAS > 4:1). In contrast, Marginal Analysis focuses on the efficiency of units of additional expenditure (incremental cost). It helps determine the exact investment stop point to avoid wasting budget when returns begin to decrease (diminishing returns), something that overall ROI analysis cannot do.