Once you upgrade to a paid Omnisend plan (Standard or Pro), your billing cycle runs every 30 days from your upgrade date. You're charged based on your billable contact count (subscribers + non-subscribers) and billed upfront each cycle.

This article explains how billing works, tier upgrades, prorated charges, and what counts as a billable contact.

Omnisend offers monthly subscriptions billed every 30 days. Your credit card is charged automatically every 30 days.

Your billing cycle runs every 30 days from the date you first upgraded, not from the 1st of each month. For example, if you upgraded on the 12th, your next billing date will be the 12th of the following month. Check your next billing date in the Profile menu (top left).

You're charged based on billable contacts – this includes:

To check your billable contacts, create a segment. Go to Audience → Segments → Create segment → Create from Scratch → Add filters:

You can also see your pricing plan details under Store Settings → Pricing and usage.

Non-subscribers can still receive automated transactional messages like order confirmations and cart abandonment reminders. Because they use Omnisend's system for these messages, they count toward your billable contacts.

This is why your billable contact count may be higher than your subscriber count.

SMS subscriptions are optional add-ons charged separately from your email plan. SMS access depends on when you subscribed:

Free and Standard users who subscribed before May 4, 2026:

If you subscribe to SMS credits, this appears as an additional charge on your billing history. Your email plan and SMS subscription are billed independently. 

To manage both, go to Store Settings → Pricing and usage.

Omnisend pricing is based on billing tiers. Your billing tier adjusts automatically as your contact list grows or shrinks.

After your first payment, your tier is based on your current number of subscribers and non-subscribers.

If you import contacts mid-cycle or your list grows, you'll be prompted to upgrade your tier immediately when you try to send a campaign that exceeds your current limit.

For example, if you upgraded your account with a small number of contacts and imported additional contacts before the end of the billing cycle, you'll see a prompt to upgrade when you try to send a campaign to more contacts than your current billing tier allows in the Send step.

You must click Upgrade to confirm the charge before the campaign sends. This prevents campaigns from being blocked due to insufficient tier limits.

When you upgrade mid-cycle:

Why am I being charged twice in one month?

You may see two charges if you have both an email subscription and a separate SMS subscription. SMS credits are an optional add-on and are billed independently from your email plan. Check Store Settings → Pricing and usage to see both subscriptions. You can cancel your SMS subscription anytime if you don't need it.

Learn more: Manage Your Omnisend SMS Credits & Subscription

Why did my monthly price suddenly increase?

Price increases usually happen for two reasons:

Why am I charged for more contacts than my subscriber count?

You're billed for both subscribers (opted-in for marketing) and non-subscribers (customers who placed orders, abandoned carts, or created accounts without opting in). Non-subscribers can still receive automated messages like order confirmations and cart reminders, so they count toward your billable contacts.

To check your exact breakdown, create a segment: Audience → Segments with filters for subscribed and non-subscribed statuses. Learn more: Understand Contact Statuses by Channel

What does "upgrade your billing tier immediately" mean?

If you try to send a campaign to more contacts than your current tier allows, you'll see a prompt to upgrade immediately. This happens when you import contacts mid-cycle or your list grows.

You must click Upgrade to confirm the charge. The amount is prorated based on the days remaining in your cycle. Your invoice is generated immediately and can be accessed under Store Settings → Pricing and usage → Billing history.

Why can't I send a campaign even though I have enough contacts in my plan?

You may have exceeded your monthly contact reach limit. This is the total number of unique contacts you can reach across all campaigns and automations during your billing cycle. It's separate from your email credit balance.

For example, if your tier allows 11.5K contacts per month, but you've already reached 12.3K contacts through earlier campaigns, you'll need to upgrade or wait until your cycle resets.

Check Store Settings → Pricing and usage for your next billing date and current contact reach.

How do I calculate my prorated charge when upgrading mid-cycle?

Prorated charges are based on the number of days left in your billing cycle.

Formula: 
Divide your current payment by 30 days, then multiply by the remaining days to find your unused credit. Subtract that from your new plan's price.

Example:
You paid $70 for Standard 15 days ago (30-day cycle). You have ~$35 credit left. Upgrading to Pro ($105) will cost you ~$70 ($105 - $35).

You can always check your next billing date in your Profile menu (top left).

Why am I seeing international transaction fees on my invoice?

If your bank or credit card is issued outside the United States, you may see international transaction fees added by your financial institution. These fees are not charged by Omnisend – they're applied by your bank for processing foreign currency transactions. To avoid these fees, consider using a payment method that doesn't charge international transaction fees, or contact your bank to understand its fee structure.