How much should a marketing retainer cost?

For full-service B2B agency engagements: $5,000-$15,000/month is typical for SMB clients (under $5M revenue), $15,000-$50,000/month for mid-market, $50,000+ for enterprise. The fee should reflect the team size (account manager + 1-3 specialists) and the deliverable volume. Boutique specialists (single channel — paid, SEO, content) often run $2,500-$8,000/month for focused work. Pass-through media budget is separate from retainer.

What KPIs should a marketing proposal commit to?

Lead generation engagements: MQLs/month, cost-per-MQL, MQL-to-SQL conversion (with sales-team caveat), pipeline contribution. Awareness engagements: organic traffic growth, brand search volume, social engagement, share of voice. SEO engagements: organic traffic, ranking positions for target keywords, organic-sourced leads. Specific numbers tied to dates ("150 MQLs/month by month 6, $80 cost-per-MQL by month 6") win deals; vague "we'll grow your traffic" doesn't.

Should marketing proposals include the media budget or pass it through?

Pass-through, always. Combining retainer fee + ad spend into one number obscures both. Clients want to see: this is what we're paying the agency for their work ($8,500/mo), this is what's going to Facebook/Google/LinkedIn ($5,000/mo, billed at cost, agency does not mark up). Some agencies do mark up media (5-15%); if you do, disclose it. Transparency on this point builds trust.

How long should a marketing engagement run?

6 months minimum is the marketing-agency standard for content + SEO + paid integrated engagements. Content and SEO compound over 4-6 months; paid optimizes over 3-4 months. Clients cancelling at month 3 haven't seen the work compound. Some specialized retainers (PR, influencer) can run shorter (3 months); strategy-only engagements often run 8-12 weeks fixed. State the minimum term explicitly in the proposal.

What if the client doesn't hit the KPIs?

Marketing proposals should acknowledge that KPIs depend on factors outside agency control: sales-team follow-up, market conditions, product-market fit, seasonality. The agency owns the marketing activity (leads delivered to sales); the client owns conversion (sales closing those leads). Some agencies offer performance guarantees with credits (e.g., "if we don't hit MQL target, you get the next month at 25% off") — these work for confident agencies on tight scopes but limit upside otherwise.

Proposal Generator

Build a winning sales proposal in minutes

ToolsFeedback

Details

Cover Letter

Scope

Pricing

Next Steps

Review

Proposal Details

Cover the basics — who, when, and how long it's valid

Proposal Number *

Currency *

Proposal Date *

Valid Until

Prepared by

Logo (Optional)

Click to upload logo

PNG, JPG up to 2MB

Prepared for

Sales Proposal

Proposal #PROP-001

Issued May 17, 2026

Prepared by

Beacon Marketing Studio

Prepared for

Cover Letter

Dear [Client name],

This proposal covers a 6-month digital marketing engagement focused on driving qualified leads to your sales team through content and paid advertising.

KPIs we own: 30+ MQLs per month by month 3, $50 cost-per-MQL by month 6.

Scope of Work

6-month digital marketing engagement covering content, paid ads, and monthly reporting. Channels: LinkedIn, Google Ads, email.

Deliverables

•Content calendar (4 posts/week, LinkedIn + blog)
•Paid ad management (LinkedIn + Google, $5K/mo budget)
•Monthly performance reports with recommendations
•Quarterly strategy review

Investment

Description	Qty	Rate	Total
Monthly retainer × 6 months	6	$4,500.00	$27,000.00
Initial setup & onboarding	1	$2,500.00	$2,500.00

Subtotal:$29,500.00

Total Investment:$29,500.00

Next Steps

How to accept: Reply YES to this email, or sign below.

Within 24 hours, we send the contract. After signing, we schedule a kickoff call within the week.

Accepted by Client

Date: ___________________

Submitted by

Beacon Marketing Studio

Date: May 17, 2026

Sales Proposal

Proposal #PROP-001

Issued May 17, 2026

Prepared by

Beacon Marketing Studio

Prepared for

Cover Letter

Dear [Client name],

This proposal covers a 6-month digital marketing engagement focused on driving qualified leads to your sales team through content and paid advertising.

KPIs we own: 30+ MQLs per month by month 3, $50 cost-per-MQL by month 6.

Scope of Work

6-month digital marketing engagement covering content, paid ads, and monthly reporting. Channels: LinkedIn, Google Ads, email.

Deliverables

•Content calendar (4 posts/week, LinkedIn + blog)
•Paid ad management (LinkedIn + Google, $5K/mo budget)
•Monthly performance reports with recommendations
•Quarterly strategy review

Investment

Description	Qty	Rate	Total
Monthly retainer × 6 months	6	$4,500.00	$27,000.00
Initial setup & onboarding	1	$2,500.00	$2,500.00

Subtotal:$29,500.00

Total Investment:$29,500.00

Next Steps

How to accept: Reply YES to this email, or sign below.

Within 24 hours, we send the contract. After signing, we schedule a kickoff call within the week.

Accepted by Client

Date: ___________________

Submitted by

Beacon Marketing Studio

Date: May 17, 2026

Step-by-step

How to write a winning marketing proposal

1

Lead with the client's growth challenge

"Northwind Studios needs to scale from 50 to 200 qualified leads per month in 6 months to support sales hiring." Show that you understand the business problem, not just the marketing tactics. Clients buy agencies that understand the why, not the what.

2

Propose the strategic approach

"Three-pillar strategy: (1) Content marketing for organic lead generation. (2) LinkedIn paid for direct-response capture. (3) Account-based outreach for top-100 target accounts." Strategy first, tactics second. The proposal that opens with "we'll post on LinkedIn 5x/week" loses to the one that explains why.

3

Specify channels and monthly deliverables

Per channel: "Content (4 articles/month + 2 case studies/quarter), Paid (LinkedIn + Google budget $5K/mo managed), Email (2 nurture sequences + monthly newsletter), SEO (technical fixes + 4 keyword targets)." Specific deliverables make the scope visible and pricing defensible.

4

State KPIs and how you'll measure them

"Month 3: 75 MQLs/month. Month 6: 150 MQLs/month. Cost per MQL under $80 by month 6." Specific numbers + dates. Marketing agencies that won't commit to numbers are selling activity, not outcomes. State KPIs you'll own, and acknowledge variables outside your control (sales follow-up, market conditions) without using them as cover.

5

Price the engagement clearly

"$8,500/month retainer × 6 months = $51,000 total. Includes all deliverables above. Paid media budget passed through at cost ($5,000/month, not included in retainer)." Separate your fee from pass-through ad spend; clients want to see both clearly.

6

Explain your reporting cadence

"Weekly Slack updates on deliverables. Monthly performance report (delivered by 5th business day): traffic, leads, cost-per-lead by channel, content performance, recommendations for next month. Quarterly strategy review (60-min call)." Clients churn when they don't see progress; clear reporting cadence prevents the "what are we paying you for?" call.

7

End with next steps and validity

"Accept by [date] to lock the planning window. We'd kick off with a 60-min strategy workshop in week 1, ramp content in week 2, paid live in week 3. Proposal valid through [30 days out]." Marketing proposals expire because agency capacity is finite; 30-day validity is industry standard.