Ecommerce Marketing Budget Calculator

Turn a share of revenue into a monthly marketing budget, split across paid, content, email, influencer and affiliate spend.

Your numbers

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Budget

Store stage

For your own reference. Use the presets below to load a starting split for each stage, then adjust it.

Monthly revenue

Marketing budget (% of revenue)

There's no official rule for this. Younger stores usually spend more of revenue to build awareness; established stores spend less once search and repeat customers cover more of their sales.

Split by channel (shares, not fixed %)

Paid ads

Content and SEO

Email and SMS

Influencer and affiliate

Other (tools, agency, events)

Your result · updates as you type

Monthly marketing budget

$4,000

10% of $40,000 in monthly revenue. The largest share, 50%, goes to paid ads.

Paid ads: $2,000 (50%)
Content and SEO: $800 (20%)
Email and SMS: $600 (15%)

There's no official percentage that applies to every store. Use this to plan cash flow, then shift the split toward whichever channel is currently producing the best return: check it with the [MER calculator](/tools/mer-calculator) or [ROAS calculator](/tools/roas-calculator) by channel.

Budget split by channel

Paid ads

$2,000

Content and SEO

$800

Email and SMS

$600

Influencer and affiliate

$400

Other (tools, agency, events)

$200

Breakdown

Monthly revenue: $40,000
× budget share (10%): $4,000
Paid ads: $2,000 (50%)
Content and SEO: $800 (20%)
Email and SMS: $600 (15%)
Influencer and affiliate: $400 (10%)
Other (tools, agency, events): $200 (5%)

There's no official percentage, so this is a planning tool

You'll see specific percentages of revenue quoted as “the” marketing budget rule online. There's no single official standard behind them, so this calculator treats the percentage and the channel split as your own inputs to plan cash flow with, not a rule to follow blindly.

Monthly budget = monthly revenue × budget %, split across channels by the shares you set

Example: the default numbers

Monthly revenue × 10%: $40,000 × 10% = $4,000
Paid ads (50%): $2,000
Content and SEO (20%): $800
Email and SMS (15%): $600

Monthly marketing budget: $4,000. The largest share, 50%, goes to paid ads.

Setting the split by stage

Newer stores usually lean more heavily on paid ads and a bigger overall percentage, since there's no repeat-customer base or organic search history yet to lean on.
Established stores often shift toward email, SMS and content, which cost less per sale once there's a returning-customer base and organic traffic to work with.
Revisit the split once you can see which channel is producing the best return, using the MER calculator or ROAS calculator channel by channel.

Questions people ask

What percentage of revenue should I spend on marketing?

There's no official rule. Start with a figure you can sustain in cash flow, then adjust it based on which channels are actually producing a return.

How should I split budget across channels?

Weight it toward whatever is currently working best, checked with tools like the ROAS or MER calculator, rather than a fixed formula that ignores your own results.

Should ad spend and content spend come from the same budget?

Track them together for planning, but expect very different paybacks: paid ads pay back per order, content and SEO pay back slowly over months as it builds organic traffic.

How often should I revisit the marketing budget?

Monthly is reasonable for most stores, more often around major sales events when spend usually needs to flex.

Last reviewed 30 September 2026.