Marketing Budget Planning for 2026: Benchmarks, Splits, and What Actually Works

Most marketing budget plans start with last year's numbers plus or minus a gut-feel adjustment. That is how you end up spending $150K/month on a channel that saturated at $90K and underspending on one that has room to grow.

Here is a data-grounded approach to planning your 2026 marketing budget, with real benchmarks and a framework that actually holds up when the CFO asks "why."

How Much to Spend: Industry Benchmarks

Marketing spend as a percentage of revenue varies wildly by industry. Here are 2025-2026 benchmarks from Gartner, Deloitte, and our own aggregated data:

If you are a DTC brand spending 8% of revenue on marketing, you are probably under-investing. If you are a B2B manufacturer at 12%, you might be over-allocated. These benchmarks are a starting point, not a prescription.

Channel Split Recommendations for 2026

For a mid-size DTC or SaaS company ($10M-$100M revenue), here is a reasonable starting split for paid media:

Google Ads (Search + Shopping + PMax): 30-40% of paid budget. Still the highest-intent channel for most businesses. Search captures existing demand. But watch for saturation on branded terms.

Meta (Facebook + Instagram): 20-35% of paid budget. Still strong for prospecting and retargeting despite rising CPMs. Critical for DTC brands. Slightly less important for B2B SaaS.

YouTube / Connected TV: 10-20% of paid budget. Growing fast as measurement improves. Particularly effective for brands with strong creative and consideration-stage products.

TikTok: 5-15% of paid budget if your audience skews under 40. Higher allocation for fashion, beauty, food, and fitness. Lower for B2B or financial services.

Everything else: 5-15% for programmatic display, LinkedIn (B2B), podcasts, affiliate, or emerging channels. This is your test-and-learn budget.

When to Increase Budget

Increase total budget when your blended ROAS (from MMM, not platform reporting) is above your target and your response curves show room to grow. Specifically: if your marginal ROAS on the top 2-3 channels is still above 2x at current spend levels, there is room to push.

Also increase during periods of strong product-market fit signals: organic growth accelerating, conversion rates climbing, LTV increasing. Marketing works harder when the product is pulling.

When to Decrease Budget

Cut budget when your response curves are flat (saturated) across most channels, when blended ROAS is below 1.5x, or when you have no clear path to improving creative or targeting. Throwing more money at saturated channels is burning cash.

Seasonal businesses should also scale back aggressively during off-peak periods. Running $200K/month on Meta in January for a swimwear brand is a waste. Save that budget for April-June when demand exists.

How MMM Informs Budget Planning

The problem with benchmarks is they are averages. Your business is not average. MMM gives you your specific response curves, your specific channel ROAS, and your specific saturation points.

With those curves, budget planning becomes a math problem instead of a debate. You can model scenarios: what happens if we shift $50K from Meta to YouTube? What if we increase total spend by 20%? The model shows projected outcomes for each scenario.

That is the difference between a budget plan that survives contact with the C-suite and one that gets shredded in the first finance review. Numbers beat opinions. See a sample MMM report to understand what the output looks like.