Billing

Plans and pricing for transactional email and marketing, invoices, overage, and subscription management

Lettr has two products you can subscribe to, and they are priced differently because they measure different things:

Product	What it covers	Billed by
Transactional email	Emails sent through the API and SMTP (receipts, notifications, password resets, and so on)	Emails sent per month
Marketing	Audience features: contacts, lists, segments, and campaigns	Number of contacts you store

Most accounts use both. They share one subscription and one invoice, but each has its own plan and its own allowance. The sections below explain each product, then how they fit together.

Every account starts free. The transactional product includes a free tier (3,000 emails/month), and the marketing product includes a free tier (500 contacts). You can use Lettr without entering a card, and only pay when you outgrow the free allowances.

Transactional Email Plans

Transactional plans are billed by the number of emails you send each month. There are three plan families, plus custom Enterprise pricing.

Plan	Emails / month	Sending domains	Price / month
Free	3,000 (100/day)	1	$0
Pro	50,000	10	$15
Pro	100,000	10	$30
Business	200,000	Unlimited	$110
Business	500,000	Unlimited	$250
Business	1,000,000	Unlimited	$450
Enterprise	2,000,000+	Unlimited	Custom

What each plan includes

Free

• 3,000 emails per month, with a 100 emails per day limit
• 1 sending domain
• Email API and SMTP access
• Basic analytics
• 7-day data retention
• Best for testing, development, and low-volume apps

Pro

• 50,000 or 100,000 emails per month
• Up to 10 sending domains
• 1 inbound route, up to 10 webhook endpoints
• No daily sending limit
• Advanced analytics
• 30-day data retention

Business

• 200,000, 500,000, or 1,000,000 emails per month
• Unlimited sending domains
• 10 inbound routes, unlimited webhook endpoints
• Advanced analytics
• 30-day data retention
• Priority support and a dedicated account manager
• Dedicated IPs available as an add-on

Need more than 1,000,000 emails a month, dedicated IPs, an SLA, or SSO/SAML? Contact sales for Enterprise pricing built around your sending volume.

Transactional Overage

If you send more emails than your plan allows, you are not blocked. Extra emails are charged at $0.80 per 1,000 emails, rounded up to the nearest thousand. Overage is tracked in real time and added to your next invoice.

Overage examples

• 1 extra email: rounded up to 1,000 → $0.80
• 1,500 extra emails: rounded up to 2,000 → $1.60
• 10,001 extra emails: rounded up to 11,000 → $8.80

Overage applies to transactional emails only. Marketing campaign sends do not draw from your transactional allowance, and the marketing plan has no overage. See How the two products work together below.

Marketing Plans

Marketing plans cover the Audience features: contacts, lists, segments, and campaigns. They are billed by the total number of contacts you store, not by how many campaign emails you send.

Tier	Contacts	Price / month
500	500	Free
2K	2,000	$10
5K	5,000	$30
10K	10,000	$50
15K	15,000	$75
20K	20,000	$100
30K	30,000	$140
40K	40,000	$180

Every plan includes unlimited campaigns, the drag-and-drop editor, lists and segments, and advanced analytics. Storing more than 40,000 contacts moves you into custom Enterprise pricing.

The 500-contact tier is free and included on every account, so you can build lists and send your first campaigns before paying for a marketing plan.

Unlike transactional email, the marketing plan has no overage. If you reach your contact limit, campaign sending is paused until you upgrade to a higher tier or remove contacts. You are never charged a surprise fee for going over.

Downgrading to a lower marketing tier is blocked while your contact count is above the target tier’s limit. Remove contacts first, then downgrade.

How the Two Products Work Together

This is the part people ask about most, so here is the short version:

• Transactional emails and campaign emails are counted separately. Sending a campaign to your audience does not use up your transactional email allowance, and it never triggers transactional overage.
• Transactional is priced per email. Marketing is priced per contact. A large audience with infrequent campaigns is cheap; a small audience receiving heavy API traffic is priced on the transactional side.
• One subscription, one invoice. Both products live on a single subscription as separate line items, so you get a single monthly invoice covering your transactional plan, any transactional overage, and your marketing plan.

Do I need a marketing plan?

Only if you use Audience features (contacts, lists, segments, campaigns). If you send transactional emails through the API or SMTP and nothing else, you do not need a paid marketing plan. Every account includes the free 500-contact tier, so you can try Audience features at no cost.

Do campaign emails count toward my transactional email limit?

No. Campaign sends are tracked in a separate pool from transactional emails. They do not reduce your transactional allowance and do not cause transactional overage charges.

Can I have a marketing plan without a paid sending plan?

Yes. The marketing plan attaches to your subscription alongside a transactional plan, but that transactional plan can be the Free tier. You can pay for marketing contacts while staying on free transactional email.

How Billing Works

All subscriptions use calendar-month billing cycles. They are aligned to the 1st of each month regardless of when you signed up.

1. Subscribe

   Subscribing mid-month charges a prorated amount for the rest of the current month. For example, signing up on January 15th charges roughly half the monthly rate for January.

2. Monthly renewal

   On the 1st of each month, your subscription renews at the full plan price and your email counter resets to zero.

3. Overage billing

   Transactional overage emails (sent beyond your plan limit) are tracked in real time and reported throughout the billing period. The overage charge appears on your next invoice.

4. Invoice issued

   Your invoice covers the transactional plan fee, the marketing plan fee, and any transactional overage from the previous period. Invoices are available in your dashboard and sent by email.

Upgrading

Upgrading to a higher tier mid-month gives you a prorated credit for your current tier and charges a prorated amount for the new tier. The change takes effect immediately, and your new limit applies for the rest of the billing period. This works the same way for both transactional and marketing tiers.

Downgrading

Downgrades take effect at the end of your current billing period. You keep your current limits until the 1st of the next month, when the lower tier becomes active. No prorations are applied for downgrades.

Manage Your Plan

Check your current subscription and usage at Settings → Billing.

The billing page displays:

• Current transactional plan and monthly price
• Current marketing plan and contact count
• Emails sent this billing period
• Email limit for your current plan
• Overage emails sent beyond your limit (if any)
• Days remaining in the current billing period

Upgrade

1. Go to Settings → Billing
2. Click Upgrade Plan
3. Select your new transactional or marketing tier
4. Confirm the prorated charge

Your new limit applies immediately.

Downgrade

1. Go to Settings → Billing
2. Click Change Plan
3. Select a lower tier
4. Confirm the change

The downgrade takes effect on the 1st of next month.

Payment Methods

Lettr accepts all major credit cards via Stripe. Payment methods are managed through the Stripe billing portal.

Add or update a payment method

1. Go to Settings → Billing
2. Click Manage Subscription to open the Stripe portal
3. Select Payment methods
4. Add a new card or update your default

Billing portal

Access the full Stripe billing portal from Settings → Billing → Manage Subscription for:

• Updating payment methods
• Viewing and downloading invoices
• Updating billing address
• Managing tax IDs (VAT numbers)

Invoices

Invoices are generated monthly on the 1st and include:

• Transactional plan fee: your sending tier’s monthly price
• Marketing plan fee: your contact tier’s monthly price (if on a paid tier)
• Overage charges: any transactional emails sent beyond your limit in the previous period
• Taxes: automatically calculated based on your billing address

View invoices

1. Go to Settings → Billing
2. Click View Invoices or access via the Stripe portal
3. Download PDF invoices for your records

Tax handling

Lettr uses Stripe Tax for automatic tax calculation:

Region	Tax treatment
EU (with VAT ID)	Reverse charge (0%)
EU (without VAT ID)	Local VAT rate
Non-EU	No tax

Add your VAT ID in the Stripe billing portal to enable reverse charge for EU business customers.

Usage Tracking

Email usage is tracked in real time. Your counter resets to zero on the 1st of each month when your subscription renews.

What counts as usage

Each accepted recipient on each API request counts as one email toward your transactional limit:

• Sending to 3 to addresses and 2 cc addresses counts as 5 emails
• Email size, content type, and tracking settings do not affect the count

Emails that fail validation before being queued do not count toward your limit. Emails that bounce after delivery do count, because they were already accepted for sending.

Campaign recipients are counted in a separate pool and do not affect this transactional total.

Usage alerts

Set up alerts to notify you when approaching your limit:

1. Go to Settings → Billing
2. Configure usage threshold alerts (for example, 80% or 90%)
3. Add notification email addresses

Cancel Subscription

To cancel your subscription:

1. Go to Settings → Billing
2. Click Manage Subscription
3. Select Cancel subscription in the Stripe portal

Cancellation takes effect at the end of your current billing period. You keep full access and your current limits until then. After cancellation, your account reverts to the free tiers: 3,000 transactional emails per month (100/day) and 500 marketing contacts.

If you change your mind before the billing period ends, you can resume your subscription from the same page. Resuming keeps your current tiers and prevents the downgrade to the free tiers.

Enterprise

For teams with high-volume needs or custom requirements, contact us for Enterprise pricing:

• Volume above 1,000,000 emails per month or 40,000 contacts
• Dedicated IP addresses
• SSO/SAML
• Dedicated account manager
• SLA guarantee
• 90-day data retention
• Everything in Business

Contact [e-mail] for Enterprise inquiries.

Frequently Asked Questions

What happens if I exceed my transactional email limit?

You can keep sending. Extra emails are charged at $0.80 per 1,000, rounded up to the nearest thousand, and added to your next invoice.

What happens if I exceed my marketing contact limit?

Campaign sending is paused until you upgrade to a higher marketing tier or remove contacts. There is no marketing overage charge.

Do campaign emails use my transactional email allowance?

No. Campaign sends are tracked separately and never reduce your transactional allowance or trigger transactional overage.

When does my email counter reset?

On the 1st of each month when your subscription renews, regardless of when you originally subscribed.

Can I change tiers mid-month?

Yes. Upgrades take effect immediately with prorated billing. Downgrades take effect at the start of the next billing period. This applies to both transactional and marketing tiers.

Can I resume a cancelled subscription?

Yes. If you cancel, you can resume any time before the current billing period ends. Your tiers and limits are preserved.

What payment methods do you accept?

All major credit cards (Visa, Mastercard, American Express) via Stripe. Some regions may have additional payment options through Stripe.

Do you offer refunds?

We don’t offer refunds for partial months. If you cancel mid-month, you keep access until the end of your billing period. Contact support for exceptional circumstances.

How do I get a VAT invoice?

Add your VAT ID in the Stripe billing portal. Your invoices will then include your VAT number and apply reverse charge for EU business customers.

How is each email counted?

Each accepted recipient on each API request counts as one email. Sending to 5 recipients in a single request uses 5 emails from your quota, regardless of email size or whether tracking is enabled.

Integrate with Stripe

Lettr uses Stripe for billing, but you can also use Lettr to send emails from your own Stripe account. The Lettr Stripe App lets you send payment receipts, invoices, and subscription notifications directly from the Stripe dashboard.

Stripe Integration

Send emails and templates from Stripe