Rates and Billing Practices

Need to make a payment?

Please pay using the link on the invoice, or send us a check.


We offer both hourly or flat-rate billing, depending on the details of your project. We never charge for the initial 30-minute consultation or for any broad research and training we may need to complete in order to serve you. However, if you have a very uncommon request that requires project-specific learning, this will be billed at our regular rate as “Research.” We do not charge for correspondence related to billing or payments, but we do bill for correspondence and meetings in which we discuss the details of your project.

If you request a meeting at your location and it requires a special trip, we do not charge a fee, but our travel time will be billable unless otherwise negotiated in advance.


Note that invoice practices may vary depending on the type of project. Feel free to ask for clarification any time! We value transparency, predictability, and practicality in our invoicing practices so please let us know how we’re doing. We are happy to provide a summary of your past invoices and services rendered upon request.

We try to bill at regular intervals but we may use our discretion to avoid excessive paperwork or to accommodate the eccentricities of your cash flow. Once an invoice is issued, please pay within 15 days. If your invoice is outstanding after 15 days and we have not come to an agreement about a payment plan, we reserve the right to halt work on your project. We prefer payment by check but we also accept PayPal, credit cards, and cash. If you have chosen a 10-hour pre-paid block or a retainer plan in order to access a reduced rate, you must pay your bill before we begin work.