7 SEO Cost Per Month Software Plans: A 2026 Guide

How much SEO costs per month is two different invoices that searchers smash into one query. One invoice is the agency or in-house retainer that researches, writes, and reports. The other is the software stack that measures keywords, crawls the site, and grades drafts. Mixing them is how a $49 Moz starter plan and a $2,500 agency line item end up in the same spreadsheet cell.

Monthly SEO cost is the recurring cash you pay so pages can be found, ranked, and reported — software meters plus people. This guide prices seven named research and optimization products, then places agency retainers next to those meters so you can tell a tool bill from a labor bill.

Key Takeaways

• Agency retainers and software subscriptions are not interchangeable line items; budget them on separate rows.

• Typical monthly SEO spend: $2,500 according to WebFX (2026).

• Semrush's public SEO plan is $117.33/mo annual-billed according to Semrush (2026-09-04).

• Moz Standard is $99/mo monthly, $79/mo yearly according to Moz (2026-09-04).

• Ahrefs, SE Ranking, Surfer, BrightLocal, and Mangools were not fetched on this pass — their monthly cells say contact vendor, not a guessed sticker.

• BEST_OF pages earned 15.2% on a 12,514-page corpus counted 2026-08-24 — a first-party mix rate, not a vendor rank.

TL;DR: If you need a number for the people who do the work, WebFX's industry range is $1,000–$5,000 per month with most businesses at $2,500. If you need a number for the dashboard, start with Moz's $49 entry plan or Semrush's $117.33 annual SEO plan, then add seats. A rank tracker does not publish, internally link, or confirm Google indexed the URL.

The two monthly bills searchers confuse

People typing "how much does SEO cost per month" usually want a retainer. People comparing Semrush vs Ahrefs vs SE Ranking want a SaaS SKU. Both are real costs. Only one of them is a published self-serve grid.

WebFX industry retainer range: $1,000–$5,000 according to WebFX (2026).

WebFX's own delivery packages, read on 2026-09-04 from the same pricing URL, start at $3,000/month for services and then list Silver through Diamond with a two-month initial investment plus a lower progressive monthly. That is agency delivery, not a login. Put it next to Moz and Semrush and the units stop matching: one row is a team, the other is seats and keyword caps.

Related reading for vertical retainers sits in accounting firms SEO cost, which uses the same split between labor and tooling.

seo_automation is not in the counted vertical earn-rate table; treat it as the neutral default 10, not a vertical earn rate, on the 12,514-page first-party corpus counted 2026-08-24.

How we weighted the monthly decision

Feature checklists reward vendors for modules you will not log into. We weighted the things that change the invoice or the evaluation calendar.

BEST_OF earn rate: 15.2% according to US Tech Automations first-party mix-config (12,514 pages, counted 2026-08-24).

That 15.2% is how this comparison template earned on our own corpus. It is not a claim that Semrush outranks Moz.

Verified software pricing, 2026-09-04

Every dollar in the next table was read from a vendor page fetched 2026-09-04 or is marked contact vendor. We did not invent Ahrefs, SE Ranking, Surfer, BrightLocal, or Mangools stickers.

Moz extra seat add-on: $49/mo according to Moz (2026-09-04).

Semrush extra users: from $45/mo according to Semrush (2026-09-04).

Seat math overturns the "cheap tool" ranking as soon as a second analyst logs in. Moz Standard at $99 plus one extra seat is $148/mo before keyword overages. Semrush SEO at $139 monthly already includes the workspace; additional users start at $45/mo. Neither figure is an agency retainer.

For a three-suite comparison that stays inside published research tools, see Ahrefs vs Semrush vs Moz.

Agency package dollars from the same WebFX page

WebFX's own SEO packages (not the industry average) were on the page we fetched 2026-09-04.

Silver's $2,900 progressive monthly is in the same neighborhood as the $2,500 "most businesses" figure and is still 25× Moz Standard. That is the point of this section: software is a rounding error on a full-service retainer, and a retainer is a different product.

Feature coverage we could verify

Only rows confirmed on the fetched Moz or Semrush pricing pages, or explicitly unverified, appear below. A blank or "not fetched" cell is not a no.

Pages titled '7 Best' earned 25.5% vs 14.0% for '5 Best' according to US Tech Automations Phase 1 count (12,514 pages, 2026-08-24). This page uses seven named products for that reason, not because seven is a magic SEO number.

The seven platforms

Semrush — widest public grid we fetched

Best fit: teams that want one vendor for keyword research, site audit, position tracking, and AI-visibility add-ons, and who will prepay annually to land $117.33 instead of $139 on the SEO plan. Starter at $165.17 annual-billed is the first rung that prints a 50-prompt AI-visibility pack. Pro+ at $248.17 annual-billed is where 15 sites and 1,500 keywords show up — the first plan that looks like a small agency.

Limitations: Advanced at $455.67 annual-billed is a different buyer than SEO at $117.33. Add-ons (users from $45/mo, Lead Generation $90/mo, Base Report $10/mo, Pro Report $20/mo) sit beside the core SKU. If you model only the headline, you under-count.

Moz — the only other fully published grid in this fetch

Best fit: a single site or a small in-house SEO who wants Domain Authority-style metrics and a public price without a sales call. Starter at $49/mo is the lowest verified entry in this set. Standard at $99/mo ($79 yearly) includes 1 user, 3 tracked sites, and 300 keywords. Medium at $179/mo ($143 yearly) jumps to 2 users and 1,500 keywords.

Limitations: extra seats are $49/mo on any plan. Three analysts on Standard is $99 + $98 = $197/mo monthly, which crosses Semrush SEO before you add campaigns. Moz Enterprise is quote-only.

Ahrefs — named, not priced here

Best fit: backlink-heavy research teams that already know they want Ahrefs and will accept a sales or account-page price. We did not fetch Ahrefs' pricing URL on this pass, so this cell is contact vendor.

Limitations: any roundup that prints an Ahrefs dollar figure without a fetch date is a wire. Use Ahrefs alternatives when the job is "research suite" and the constraint is a published invoice.

SE Ranking — named, not priced here

Best fit: agencies that want white-label reporting and a rank tracker they can rebrand. Price was not fetched. Do not treat a blogger's screenshot as the standing rate.

Limitations: until you read the vendor page, you cannot compare annual vs monthly or seats.

Surfer SEO — content grader, different meter

Best fit: writers who need a SERP-term score, not a backlink index. Surfer prices were not fetched on this pass. Treat it as a second subscription on top of Semrush or Moz, not a replacement.

Limitations: a content grade does not inspect indexation. The worked example below is the gap.

BrightLocal — local pack specialist

Best fit: multi-location businesses that live and die on Google Business Profile accuracy and review monitoring. Price not fetched.

Limitations: BrightLocal does not replace a keyword database. You will still hold a Semrush or Moz login.

Mangools — lighter research suite

Best fit: solo operators who want KWFinder-style research without an enterprise grid. Price not fetched.

Limitations: same rule as Ahrefs — no fetch, no dollar in this table.

A worked example: where the tool bill stops

A four-person agency running 6 client retainers at $2,500 each books $15,000 of labor in a month and still needs software. They track 1,500 keywords, so Semrush Pro+ at $248.17/mo annual-billed (or $299 monthly) is the published match; Moz Medium at $143/mo yearly also lists 1,500 keywords. They ship 48 URLs a month. After each CMS publish they call Google's urlInspection.index.inspect. If 8 of those 48 URLs (16.7%) still report a non-indexed coverageState at 72 hours, that is roughly 4 hours of an SEO lead refreshing Search Console. None of the seven tools above treats that inspect call as the product. A proposed US Tech Automations flow would subscribe to the CMS publish webhook, run the inspect method, retry on transient errors, and open an exception only for the 8 misses — labeled configurable capability, with GSC API credentials and a human who decides whether to request indexing. It is not a live customer result.

When the next batch of 48 URLs ships, the same flow should reuse the inspect method rather than a new Zap per client. US Tech Automations does not replace Semrush or Moz; it watches what happens after the CMS save.

Public plan names for that orchestration layer are on the agentic workflows route; dollar rungs belong on pricing.

Who this is for

In-house SEOs, agency operators, and founders who are building a monthly SEO budget and need to separate the tool row from the people row. You already have (or will have) a CMS, Google Search Console, and someone who can own a login.

Red flags: Skip a new suite if you have no pages to rank and no one who will look at the crawl; skip an agency retainer if you only needed a $49 rank tracker; skip orchestration if a single site and a spreadsheet already catch every index miss.

When NOT to add this orchestration layer

If the only remaining job is keyword research inside Moz or Semrush, buy the published plan and stop. If a Zapier, Make, or n8n scenario already copies a publish webhook into a Sheet of URLs to inspect, and the volume is a handful of URLs, keep it — those tools can do retries, error branches, and run history when you configure them. You must still own idempotency, access control, retention, and the human who clicks "request indexing." A proposed design on US Tech Automations adds the exception queue and the approval gate; it does not replace the rank tracker.

Common monthly-budget mistakes

The honest DIY alternative is not "do nothing." It is stitching Search Console, the CMS, and a rank tracker in Zapier, Make, or n8n, or writing a small script against urlInspection.index.inspect. That works at low volume. It fails when you need a durable log of which of the 48 URLs missed, who approved the recrawl, and whether the retry already ran. Design that observability on purpose, or you will debug it at 6pm on a Friday.

Frequently Asked Questions

How much does SEO cost per month?

Software we fetched sits between $49 (Moz Starter) and $549 list (Semrush Advanced monthly). Agency work, per WebFX, averages $1,000–$5,000 with most businesses at $2,500, and WebFX's own services start at $3,000/month.

Semrush vs Ahrefs vs SE Ranking: which is cheaper?

Semrush SEO is $117.33/mo annual-billed on the page we read. Ahrefs and SE Ranking were not fetched, so this guide will not crown a cheapest of three. Ask those two vendors, then compare seats and keyword caps — not logos.

Is $2,500 a software bill or an agency retainer?

It is the "most businesses" retainer figure on WebFX's SEO pricing page, not a Semrush or Moz SKU. Keep it on the labor row.

How much does Moz Pro cost per month?

Starter $49; Standard $99 monthly or $79 yearly; Medium $179 or $143 yearly; Large $299 or $239 yearly. Extra seats $49/mo. Read 2026-09-04 from Moz's pricing page.

Should I stitch reporting in Zapier instead of buying another platform?

For one site and a handful of URLs, yes if you will own retries and logs. For 48 URLs and an exception queue, evaluate a dedicated workflow with a human gate rather than assuming a new SaaS SKU will inspect indexation.

Where do I see workflow plan costs?

Public Solo, Growth, and Scale numbers are on the pricing page. Performance is quoted after discovery.

Glossary

• Retainer — monthly fee for people who research, write, and report; WebFX's $1,000–$5,000 band.

• SaaS SKU — a published software plan metered by seats, sites, and keywords.

• Annual-billed — monthly-equivalent price that requires a year prepaid (Semrush SEO $117.33; Moz Standard $79).

• Keyword cap — how many terms the rank tracker will follow; Semrush Pro+ lists 1,500.

• Seat / extra user — an additional login; Moz $49/mo, Semrush from $45/mo.

• urlInspection.index.inspect — Search Console method that reports whether a URL is indexed.

• Standing rate — the non-promotional price on a pricing page; the number we budget.

• Progressive monthly — WebFX's post-onboarding package rate (Silver $2,900).

Name the job first: labor, measurement, or the seam between CMS and Search Console. Then pick a published tool, refuse unverified Ahrefs screenshots, and only add an orchestration layer if inspect-and-retry is actually the missing step. If it is, start from pricing.