How does an SEO company handle budget overruns?

It should prevent them with three things agreed before the work starts: a written scope that says what the fee covers and what it does not, a change order for anything outside that scope, and your approval before any extra work begins. An overrun in SEO does not need a large surprise; it can build from small additions that accumulate: an extra page here, an additional report there, a fix that turned out bigger than expected. If the company also manages paid advertising for you, there is a second kind of overrun to understand, because ad spend follows Google’s rules rather than the company’s.

A scope that shows its edges

The scope of work should list what is included each month, such as the number of pages optimized, the amount of content, the technical work, and the reports, and it should also say what is excluded, such as design, development, or paid media. A scope with both sides written down makes it obvious when a request crosses the line. Without that, each new request expands the work without anyone deciding to expand the budget.

Change orders before extra work

When you ask for something outside the scope, the company should respond with a short written change order: what the extra work is, why it is needed, and what it will cost, as a fixed amount or an hourly rate with an estimate. You approve it before work starts. That turns an extra request into a separate decision rather than a surprise on the next invoice. Agree in the contract that no out-of-scope work is billed without a signed or written approval.

Caps and early warnings

For work billed by the hour, agree a cap for each month and a point at which the company must tell you it is approaching the cap. For a fixed project, agree what happens if the work proves larger than the estimate: whether the company absorbs it, asks for approval, or stops. Invoices should list each item separately, so that the base fee and any approved extras can be checked against the scope and the change orders.

If the company also runs your ads

Advertising spend behaves differently from fees, and the difference can look like an overrun. Google’s page on overdelivery and average daily budgets explains: “On a given day, your campaign might spend up to twice your average daily budget to take advantage of fluctuations of traffic.” It also sets the monthly limit: “At the end of the month, you will have spent no more than 30.4 times your average daily budget.” A day of high spend is therefore within Google’s rules, as long as the month stays within its limit. Ask the company to report ad spend and its own fees separately, and to explain daily variations against the monthly limit rather than against a single day.

This is general information, not legal or financial advice; if a dispute over charges arises, an accountant or lawyer can review the agreement and invoices with you.

Agreeing on scope before the first invoice

Ask how the company defines what is in and out of scope, how it handles requests outside it, whether every extra needs your written approval, how hourly work is capped, and how it reports fees and ad spend. Clear answers mean that any increase in cost is one you chose.