You can move off spreadsheets without abandoning your history, but only if you decide up front how far back you are migrating and accept that the answer is probably not all of it. The usual failure is attempting a full historical rebuild, stalling three weeks in, and running both systems in parallel indefinitely. A deliberate cutover with a defined historical boundary takes about two weeks and finishes.
First, separate two questions that get merged
Preserving history and migrating history are different projects with different costs.
Preserving means the records remain accessible and defensible if a tax authority or a buyer asks. A locked, dated, exported spreadsheet archive satisfies this completely. It requires no software and no migration.
Migrating means the transactions live inside the new accounting system, where you can run comparative reports against them. This is expensive, and the value drops off sharply past about two years.
Most sellers need the first and assume they need the second. Deciding which you actually want determines the scope of everything that follows.
How far back is worth migrating
A practical boundary: migrate the current fiscal year in transaction level detail, the prior fiscal year as monthly summary journals, and preserve everything before that as an archive.
That gives you year over year comparison for the period where it informs decisions, keeps the data volume manageable, and leaves older records in a form that satisfies retention obligations. IRS guidance on how long to keep records sets retention periods that generally run three to seven years depending on circumstances, and an exported archive meets that requirement as well as a live system does.
There is one case for going deeper. If you intend to sell the business within two years, a buyer will want three years of consistent monthly statements, and producing those later from spreadsheets is materially harder than producing them now.
The constraint most sellers hit
The tool caps how far back you can go, and that cap usually tracks the plan you pay for rather than what the marketplace still holds.
A2X publishes this directly on its pricing page: three months of history on its entry Mini plan at US$29 per month, twelve months on Starter at US$59, twenty four on Standard at US$79, and maximum available history on premium plans. It documents the standard workaround, which is to subscribe to a higher plan long enough to pull the history and then move down afterward. It also notes that Amazon Pay data is capped at 24 months regardless of plan.
Check this before you commit, because it can invert the decision. If your plan is to migrate two years and your chosen tool gives you three months at the tier you were going to buy, you are choosing between a bigger subscription, a different tool, and a smaller migration.
Choosing the destination
Three categories, and the right one depends on what your spreadsheet was failing to do.
If the spreadsheet was failing at bookkeeping
You need a general ledger. QuickBooks Online or Xero, with a sync layer that decomposes marketplace settlements into their components. A2X and Link My Books both do this, posting summarized journals that reconcile to the deposit.
This is the lightest migration and the one most sellers should choose. It also has the largest pool of accountants who already know the output.
If the spreadsheet was failing at inventory and product margin
Spreadsheets break down at inventory before they break down at anything else, because valuing stock at landed cost across hundreds of SKUs with moving freight rates is genuinely hard to maintain by hand.
Platforms carrying automated cost of goods sold, real-time inventory and SKU-level profit and loss address this directly. ConnectBooks operates in this category, syncing Amazon, Shopify, Walmart, TikTok Shop and eBay into QuickBooks Online, QuickBooks Desktop Enterprise or Xero. Sellers comparing the field can work through a rundown of options aimed at marketplace sellers before committing.
The tradeoff is real. More capability means more configuration during migration, and channel coverage in this category is often narrower. A2X supports Etsy, PayPal and NetSuite, which several inventory-focused alternatives do not, so a seller with meaningful Etsy volume may find the choice made for them.
If the problem is that nobody is doing the work
Software does not solve an ownership problem. A full-service bookkeeping firm is the honest answer, and it costs more than any subscription. Ask any candidate how they record a settlement spanning two months before you sign.
The migration sequence
Six steps, in order.
Lock the spreadsheet. Pick a cutover date on a settlement boundary rather than a month end, save a read-only copy, and stop editing the original. Every subsequent correction happens in the new system.
Take a physical inventory count. Value it at landed cost, including freight, duty and inbound handling. This becomes your opening inventory balance and it is the number that makes the first close defensible.
Build the chart of accounts first. Including the clearing accounts that ecommerce requires: marketplace clearing, unpaid reserve, inventory in transit. Write a one line description of each before any data loads.
Enter opening balances as at the cutover. Cash, inventory, accounts payable, loans, owner equity. If they do not balance, resolve it now. An unexplained opening difference never gets easier to investigate.
Load history to your chosen depth. Transaction detail for the current year, monthly summary journals for the prior year. Reconcile each loaded month against the marketplace settlement totals as you go, not at the end.
Run one month in parallel. Record the first full month in both the spreadsheet and the new system, then compare. Differences here are cheap. The same differences found in March are not.
What to keep permanently
Archive the final spreadsheet, every marketplace settlement report you used, your supplier invoices, and the opening balance working papers. Store them outside any vendor’s system.
Marketplaces retain seller reports for limited periods and accounting vendors retire products with a few months of notice, which is exactly what happened to GoDaddy Bookkeeping users in 2022. GoDaddy’s own retirement FAQ records the sequence: the product went read-only on June 23, 2022, and the window to migrate or download data closed on September 30 that year. Records that exist only inside a subscription you might cancel are not preserved history, they are borrowed history.
For sellers rebuilding from the marketplace side, Amazon’s Seller Central reports documentation covers which historical reports remain available and over what periods, and the U.S. Small Business Administration guidance on managing business finances is a reasonable reference for what a small business should be retaining beyond tax records.
