Does Data Migration Cost Extra, and What Does the Fee Cover?

“A one-time onboarding fee may apply depending on your plan and firm size” is LeanLaw’s published policy, and it exists because migration scope varies more than a flat number could reflect. What drives the fee is the size and condition of what’s moving, not a fixed line item.

The published policy, in full

That’s the exact wording on LeanLaw’s pricing page, and it’s worth reading closely: the fee “may apply,” it’s tied to plan and firm size, and it’s described as one-time rather than recurring. There isn’t a single published number attached to it, because two firms on two different plans, at two different sizes, aren’t buying the same amount of setup work.

What actually drives the scope

The books stay in QuickBooks Online either way. Migration moves clients, matters, rates, and current work forward into LeanLaw — it doesn’t move historical invoices or past financial transactions, because those already live in QuickBooks Online and stay there. What does drive scope is how many active clients and matters need to be set up, how many timekeepers and rate structures come with them, and how much cleanup the existing QuickBooks Online chart of accounts needs before it can support matter-level reporting. None of that is a number this post can hand you, because it’s specific to your firm’s own data.

Why plan and firm size are the two levers, not one

The published wording names both for a reason. A firm on Core with straightforward hourly billing and a handful of timekeepers is a smaller setup job than a firm on a plan that includes matter-based accounting and multiple custom invoice templates, even before firm size enters the picture. Add more timekeepers, more active matters, or a messier starting chart of accounts, and the same plan gets more expensive to set up. Plan and size aren’t substitutes for each other; they move independently, which is exactly why a flat rate wouldn’t describe either variable well.

Picture a three-attorney firm on Core, billing hourly, with a clean QuickBooks Online file already organized by client. Now picture a fifteen-attorney firm on a plan with matter-based accounting, several custom templates, and a chart of accounts that’s never separated trust from operating cleanly. The second firm’s setup involves meaningfully more decisions and more cleanup before go-live, which is what “firm size” in that published sentence is actually pointing at.

What this depends on

• Which plan the firm lands on, and what that plan’s capabilities require to set up correctly.
• How many active clients, matters, and timekeepers need to be configured in LeanLaw.
• How much cleanup the existing QuickBooks Online chart of accounts needs before matter-level reporting works.
• Whether trust balances need to be reconciled before the cutover happens.

The number worth asking for is what scope, specifically, is driving the fee for a firm your size on the plan you’re choosing, not a flat “what’s the migration fee” answer — a conversation that also touches how long it takes to go live, since the same variables shape both.

Related questions

“What’s your standard migration or setup cost, and are there data limits or time limits?” There’s no flat, published rate; the fee depends on plan and firm size, and scope is what moves it, not a data or time cap.

“Are there any charges tied to data migration, and what does that process cost?” A one-time onboarding fee may apply depending on your plan and firm size; what it costs a given firm follows from the scope of what’s moving.

“Who actually does the work during migration — us or LeanLaw?” That split is worth understanding on its own, since it also shapes scope — see who handles data migration to LeanLaw for how the work is divided.