Switching Bookkeeping Software Without Losing Your History

Changing accounting systems is sold as an import. In practice the data moves and the context does not, and the context is what you need when someone asks about a transaction from two years ago.

Most of the damage is done in the first week, by decisions that look administrative.

Pick a cut-over date and respect it

Moving mid-month means two systems hold part of the same period, and neither reconciles cleanly. The end of a quarter is better, the end of a financial year is better still.

Running both systems in parallel for one full period is the only reliable way to know the new one produces the same numbers. Skipping that step is how discrepancies get discovered in an audit instead of a test.

Opening balances are the whole migration

If opening balances are wrong, every report after the cut-over is wrong, and the error is invisible because the new system has nothing to compare against.

Check the trial balance on the last day of the old system against the first day of the new one. They must match exactly. Not approximately, and not after an adjustment nobody wrote down.

Most migrations do not bring reconciliations with them

Transactions usually import. The record of which ones were reconciled against which statement usually does not, which means the new system shows a long list of apparently uncleared items.

Knowing that in advance is the difference between an expected inconvenience and a week of confusion. A consistent month-end close is far easier to re-establish than to invent after the move.

Keep the old system readable

Cancel the old subscription and you may lose the ability to open historical years at all. Export the full history first: trial balances, general ledger detail, and the reports you would actually be asked for.

Keep those exports with your tax records rather than in the account you are closing. The retention clock on the underlying documents does not reset because you changed software.

How Exemplary Helps

Exemplary runs the parallel period and reconciles both systems before the old one is switched off, so the history is still readable the year after the migration.

A migration is only finished when you can answer a question about last year.