FastClose℠ Advisory Retainer
A new close process, designed and overseen by me.
A monthly retainer. I design a strategic process for managing your company’s financials, then oversee your finance and engineering teams as they put it in place.
The intro call is free, and just to make sure the retainer is right for you.
At a glance
Your team is drowning in transactions.
- Reconciliations take days, if they happen at all. The close takes weeks.
- Reliable financial data has been scarce as long as you can remember.
- Mishandled purchases and refunds are hurting the customer experience and slowing growth.
- The only fix anyone has proposed is hiring an army of accountants.
A prolonged close isn’t just annoying, it’s bad for business. And it could lead to…
…error-ridden, misleading financial data
Decisions based on bad data can lead you in the wrong direction, further compounding the problem.
…terrible customer experience metrics
The buzz around your online marketplace will cool as customers flee your platform.
…the inability to provide core services
As transactional volume increases, at a certain point you will have no choice but to limit the number of users and/or transactions on your platform.
How it works
Five steps, from understanding your close today to a close that runs in three days.
- 01
Research
I learn your monthly close from your finance team: every step, its impact, and how it’s done.
- 02
Design
I write a roadmap of new processes and, where it pays off, scripts to automate the slow, error-prone work.
- 03
Review
Your finance and engineering teams weigh in. I adjust.
- 04
Kickoff
Your accounting team implements the processes. Engineering builds or changes code with my coordination.
- 05
Finalize
I stay on until the close is signed, sealed and delivered by the end of Day 3, every month.
What you get
- A solution to your transactional backlogs, and the oversight to see it implemented flawlessly.
- Unlimited access to me by email or video call, Monday to Friday.
- Strategic guidance on every finance-related item on your product roadmap, before it becomes a bottleneck.
- Confidence to move forward without finance surprises, and without hiring a team of program managers.
Still have questions?
How do I know if this is right for me?
If a material part of your monthly accounting is out of control and you want an expert to turn it into a system other CFOs will envy, this is for you.
How is it different from your other services?
More comprehensive than the one-off Strategy Consult. Less involved than the Implementation Project, because I don’t write the code myself; I guide your team.
Can other people join our calls?
Yes. Invite your accounting or finance team and any other stakeholders.
What happens after we talk?
If it’s a fit, we agree on a start date. You’ll get confirmation and receipts from my scheduling and payment software.

Who is this guy, anyway?
I’m Jonah Purinton, an accountant and a software developer. Since founding Reflex Accounting in 2018 I’ve run the financial side of marketplaces including Urbandoor (acquired by Airbnb) and Streamlabs (acquired by Logitech), and helped Silicon Valley CFOs stop fighting fires and get back to higher-level work.
I don’t hand clients off to junior contractors. When we work together, you work with me.
Limited Availability
I don’t shuffle clients off to junior contractors. When we work together, you work directly with me. To maintain a high level of service, I can only take on one new advisory retainer client per quarter. Book a call now to secure my earliest available opening.
Don’t worry — this is just a chance for us to talk so I can be sure the advisory retainer is the right solution for you.