Stop the Klaviyo tier jump before your renewal.

Klaviyo bills on active profiles, so subscribers who never open and bots who filled in your popup push you into a pricier plan. 48 hours before each renewal, TierBrake suppresses the profiles that cost you money and never buy, and your next invoice lands a tier lower.

$170

less a month on Klaviyo, $2,040 a year, if 13,000 profiles are suppressed before renewal.

30k$55035k40k45k$72050k55k
Billed now
Up to 50,000 profiles, $720/mo
Cold or bot profiles
16,800 profiles
After the trim
Up to 35,000 profiles, $550/mo

Have TierBrake make this cut before your renewal Store Starter covers a list this size.

Klaviyo email plan list prices, October 2026. Your contract price may differ.

  • Anyone who ordered in the last 365 days is left alone.
  • You see a dry-run preview and get a CSV backup before anything changes.
  • Your Klaviyo export never leaves your browser while you check it.

Founding cohort: your first dry-run preview and pre-renewal trim run within 24–48 hours of signup, with a CSV backup.

Why the bill climbs on its own

You pay for everyone you could email
Klaviyo prices email plans on active profiles, not on who opens. A subscriber from 2022 who never opened costs the same as your best customer. Klaviyo billing FAQ
Plans move up, not down
When active profiles outgrow your tier, Klaviyo moves you up at the end of the billing cycle. It only moves you back down if you turn on auto-downgrade or downgrade by hand. Billing preferences
Black Friday signups count at renewal
Every popup signup and bot form fill becomes an active profile. A November list spike shows up on the next invoice, whether those profiles ever open or not.

What happens before each renewal

  1. Dry-run preview

    We read your cold-profile segment, take out anyone with an order in the last 365 days, and flag likely bot signups. You see the exact count, the tier it lands you on, and the monthly saving. Nothing changes yet.

  2. Trim, 48 hours out

    Once you approve, we suppress those profiles through Klaviyo's API in batches of 100 and keep a CSV backup of every one. Klaviyo checks for a lower tier 24 hours before your billing cycle ends, so the smaller count is in place in time.

  3. Renewal receipt

    After renewal you get the before and after: profiles billed, the tier you landed on, and what it saved. Agencies get one per client to show their work.

Why a flow webhook isn't billing protection

Klaviyo's Solution Recipe 9 suppresses profiles from a segment-triggered flow, and Klaviyo now suggests suppressions on its own. Both help with list hygiene. Neither knows what your plan costs or when it renews.

QuestionTierBrakeFlow webhook (Recipe 9)Klaviyo suppression suggestions
When it runs48 hours before every renewalOnce, when a profile first enters the segmentWhen you open the banner and click suppress
Knows your plan ceilingWorks out the exact cut that drops you a tierNoNo
Recent buyersNever touches anyone with an order in the last 365 daysOnly if your segment excludes themKeeps profiles with recent clicks or orders
Bot signupsFlags throwaway domains, link-stuffed names and random-string addressesOnly if your segment catches themNot targeted
Before anything changesDry-run preview and a CSV backup of every profileNothingA review screen
After renewalA receipt: profiles billed, tier and dollars savedNothingNothing
Your private API keyStored encrypted, scoped, revocable any timePasted into a flow's webhook headerNot needed

Turn on auto-downgrade, or a smaller list won't shrink your invoice

Suppressing profiles lowers your count. Klaviyo only lowers your plan if your billing preferences allow it. Do these three steps once, as the account owner or an admin.

  1. In Klaviyo, open Billing > Preferences and set the email upgrade preference to None or Flexible overages. Auto-downgrade can't run alongside Automatically upgrade. Source
  2. In the Profiles auto-downgrade section, select Auto-downgrade profiles and click Update.
  3. Don't upgrade by hand before renewal. An upgrade before the downgrade takes effect cancels it. Source

Pricing

Monthly, in US dollars. Cancel any time by emailing us, and you won't be charged again.

Store Starter

$29/month

Up to 50,000 Klaviyo profiles

  • Trim 48 hours before every renewal
  • Bot signup check on each trim
  • Dry-run preview and CSV backup
  • Savings receipt each renewal

Agency Partner

$149/month

Up to 10 client Klaviyo accounts

  • Pre-renewal trim for each client account
  • Unbranded client overpayment audits
  • A savings receipt per client to show your work

If your first renewal with us doesn't land on a lower Klaviyo tier, we refund Month 1.

Applies when the 3-step Klaviyo billing checklist is done before that renewal.

Questions

Does my export get uploaded?

No. The export check reads the file inside your browser tab. We log only totals, such as how many rows were checked and how many were flagged, so we know the tool is being used.

Will you suppress a customer?

Not anyone who ordered in the last 365 days. Before every trim we check each Placed Order event in that window and take those people out of the list. You approve the dry-run preview before anything is suppressed.

What does suppressing a profile do?

Suppressed profiles stay in your account with their history, but they can't receive marketing email and don't count toward your plan limits. Klaviyo explains it here.

Can I undo a trim?

Yes. Every trim comes with a CSV backup, and you can unsuppress profiles in Klaviyo. Know Klaviyo's 90-day rule first: once a manually suppressed profile is unsuppressed, Klaviyo won't let it be manually suppressed again for 90 days. We warn you before any undo.

What access does the API key need?

A custom private key with Profiles (full access), Subscriptions (full access), Events (read access), Metrics (read access), Lists (read access), Segments (read access). You can revoke it in Klaviyo at any time.

What if my bill doesn't drop?

If your first renewal with us doesn't land on a lower Klaviyo tier, we refund Month 1. Applies when the 3-step Klaviyo billing checklist is done before that renewal.

Is TierBrake part of Klaviyo?

No. TierBrake is an independent tool that works through Klaviyo's public API with a key you create and control.

Something else? Email support@tierbrake.com.