Expansion revenue is the cheapest growth an agency has, but heavy-handed upsells cost trust. The trick is to upsell from results, not quotas.

Earn the right first

Upsell after you have delivered, not before. A win is the best setup for “here is what is next.”

Tie it to their goals

Frame the add-on as the next step toward an outcome they already want — not a new line on the invoice.

Make the margin work

Confirm the margin on the added service before you pitch it, so expansion does not erode profit.

Bill it cleanly

Add-ons should flow into recurring billing immediately. HubWho handles plan changes without manual reconciliation.