The most common question businesses ask about PPC is “How much should we spend?” The honest answer: it depends on your goals, industry, competition, and target metrics. But there is a structured approach to determining the right budget — one that starts with your business goals and works backwards to the required ad spend.
The Goal-Based Approach
Start with your revenue goal and work backwards. If you need 20 new clients per month, and your average close rate from leads is 25%, you need 80 leads. If your landing page converts at 5%, you need 1,600 clicks. If your average CPC is ₹30, you need a monthly budget of ₹48,000. This framework makes your budget a math problem, not a guess.
Industry Benchmarks for India
Average CPCs in India vary by industry: IT services ₹15-50, education and training ₹10-30, real estate ₹20-80, e-commerce ₹5-25, legal services ₹30-100, healthcare ₹15-45, financial services ₹25-80, and travel ₹10-35. These are Google Search averages — actual CPCs depend on competition, quality score, and targeting.
Average conversion rates: search ads 3-5%, display ads 0.5-1%, landing pages (well-optimised) 5-15%. Use these as starting benchmarks, then optimise based on your own data.
Minimum Viable Budget
To collect meaningful data for optimisation, you need at least 100 clicks per campaign per month. With an average CPC of ₹25, that is ₹2,500 per campaign. If you run 4 campaigns (4 service lines), that is ₹10,000/month as a bare minimum. However, this minimum generates just enough data to begin learning — not enough to be profitable from day one.
For a realistic starting budget: ₹25,000-50,000/month for a local service business, ₹50,000-1,50,000/month for a B2B company targeting India, ₹1,00,000+ for an e-commerce business.
Allocating Budget Across Channels
Google Search (50-60%): Your primary conversion channel. Allocate the majority of budget here because search traffic has the highest intent. Google Display/YouTube (10-20%): For remarketing and brand awareness. Lower intent but lower cost. Meta Ads (20-30%): For prospecting and retargeting on Facebook/Instagram. LinkedIn Ads (optional, 10%): For B2B targeting if your service targets specific industries or roles. LinkedIn CPCs are higher (₹80-200) but targeting is precise.
Testing Phase vs Scaling Phase
Month 1-3 (Testing): Allocate budget across multiple campaigns, ad groups, and keywords to discover what works. Expect higher CPAs during this phase — you are buying data. Do not judge ROI on the first month. Focus on collecting conversion data and identifying winning keywords, audiences, and landing pages.
Month 3-6 (Optimisation): Shift budget toward winning campaigns and pause underperformers. Refine targeting, improve Quality Scores, and optimise landing pages. CPAs should decrease as you focus on what works.
Month 6+ (Scaling): Increase budget on profitable campaigns. Expand to new keywords, audiences, and platforms. As you scale, expect diminishing returns — you have already captured the easiest conversions, so each additional rupee works slightly harder. Monitor CPA closely as you scale and find your efficiency ceiling.
ROI Calculation
Calculate PPC ROI as: (Revenue from PPC – PPC Cost) / PPC Cost × 100. If you spend ₹50,000 and generate ₹2,00,000 in revenue, your ROI is 300%. For services with long sales cycles, also track pipeline value — the total value of leads generated, even if they have not closed yet. This justifies continued investment while leads progress through your sales process.
When to Increase Budget
Scale spending when: CPA is below your target for 30+ consecutive days, campaigns are limited by budget (impression share lost to budget), you have identified winning audiences/keywords with room to grow, and your conversion infrastructure (sales team, delivery capacity) can handle more leads. Scale gradually — increase by 20-30% at a time and monitor CPA impact.
When to Pause or Reduce
Pull back when: CPA exceeds your maximum for 2+ consecutive weeks, conversion quality is poor (leads are not becoming customers), seasonal trends reduce demand, or your delivery capacity is maxed out. Reducing spend temporarily is better than burning budget on unprofitable traffic.
