How billing and retainers work

Invoices, payment methods, retainer cycles, and what to do if something looks wrong.

Last updated 2026-04-27

How billing and retainers work

We try to keep billing simple and predictable. Here's how it works.

Project work

For fixed-scope builds (websites, platforms, custom apps), we typically invoice in three milestones:

  1. 30% on signing — covers discovery and kicks off the build
  2. 40% at midpoint — usually tied to a specific deliverable like first usable build
  3. 30% at launch — paid before going live

Some larger engagements get split into more milestones; we'll lay out the exact schedule in your scope document.

Retainers

Ongoing work — platform maintenance, marketing operations, AI implementation rollouts — runs on a monthly retainer. Retainers are billed on the 1st of each month for that month's work, due net 7.

Each retainer comes with an agreed-upon scope (number of hours, services covered, response time guarantees). You'll find your current retainer details in your client portal under Account → Billing.

How invoices arrive

Invoices come from billing@solagon.com via Stripe. The email contains:

  • A PDF of the invoice
  • A "Pay invoice" button that opens a Stripe-hosted payment page
  • Payment method on file (if you've saved one)

You can pay by credit card, ACH transfer, or bank wire. ACH is preferred for amounts over $5,000 — it saves us both fees, which keeps our pricing where it is.

Payment terms

  • Project milestones: Net 7
  • Retainers: Net 7 from the 1st of the month
  • Late payments: A 1.5% per-month finance charge applies to invoices outstanding past 30 days

If you're going to be late on an invoice, just tell us — we'd rather work it out together than send a reminder.

Something looks wrong on my invoice

Submit a ticket with the invoice number and what you think is incorrect. We'll review and either confirm the charge or issue a corrected invoice within two business days.

Changing your payment method or billing contact

You can update your payment method any time at pay.solagon.com. For changes to the billing contact email or company info, submit a ticket and we'll update our records.

Did this answer your question?

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Tell us where the operation drags. We'll come back with what to build, how long it takes, and what it costs to run afterward. Straight answers — even if the answer is no.