START WITH TWO INVOICES
Compare the last normal bill with the first higher bill. Split the difference into the base tier, sends or credits, add-ons, discounts, tax, and currency conversion. Then investigate the line that actually moved.
The subscriber count is not necessarily the billing count
Klaviyo distinguishes active from suppressed profiles; suppressed profiles do not count toward email-plan billing. Omnisend’s standard billable total includes subscribers and non-subscribers, excluding unsubscribed contacts. These are different definitions—not equivalent labels for a newsletter list. See the Klaviyo explanation and Omnisend plan documentation.
Billing eligibility is not permission to send marketing. Preserve consent and opt-out records. Do not change a person’s subscription status just to make an import or cost comparison look cleaner.
A 20-minute invoice reconciliation
- Separate the price change from the workload change.
Did the provider change a rate, or did your account enter another tier? Save the notice, invoice date, billing period, and account count used.
- Check what entered the database.
Review new integrations, imports, store customers, and sync behavior. Count records using the provider’s actual billing rules, not a convenient marketing segment.
- Count automated sends as well as campaigns.
Inventory welcome, cart, browse, post-purchase, and reactivation flows. Look for duplicate live flows and unexpected re-entry.
- Check everything outside the base plan.
SMS, extra features, seats, a finished promotion, taxes, and exchange rates can change the total without adding subscribers.
- Reconcile to the invoice total.
If the items still do not add up, ask support to identify the count, period, and terms behind the charge. Do not migrate to solve a bill you cannot yet explain.
Use this message with billing support
My subscriber count appears unchanged, but my bill increased. Which billing count, tier, add-on, or rate changed for this period? Please show the previous and current values and when any adjustment takes effect.
Attach redacted invoice lines through the provider’s secure support channel. Do not send your customer database, passwords, or payment details to us.
A cheaper bill can still be an expensive cut
Removing or suppressing contacts may affect automations and the customers they reach. Investigate duplicate records and genuinely obsolete processes, but do not equate “does not open campaigns” with “has no customer value.” Keep a recoverable export and follow the platform’s consent and suppression instructions.
Your first target is avoidable cost: redundant tools, unused features, or capacity that does not serve an operating need. Review the effect on the next full bill before declaring a saving.
Stay, change plan, or compare providers?
Fix the current setup first
The cause is a duplicate flow, unused add-on, temporary peak, or misunderstood charge. A new provider would inherit the same operating problem.
Compare a different setup
The workload is stable and understood, but the ongoing quote is no longer good value. Test equivalent functionality and the full cost of moving.
Already on Omnisend? Use the plan guide to check Standard, Pro, and contract-generation differences. Considering a move? Read the switching cost guide.
Now compare a like-for-like year.
Use the corrected bill, not the number you expected the bill to be.
Open the cost calculator →Sources and scope
Document-based research checked September 5, 2026. The reconciliation sequence is our editorial worksheet, not account-specific billing advice.