Switching Accounting Software in Switzerland: How to Get It Right

Switching accounting software feels a little scary, and that is normal: the company’s numbers live inside it. Prepared properly, though, a migration is a manageable project, not a leap into the void. Here is how to approach it in Switzerland, step by step.

Pick the right moment

The cleanest moment is year-end close: the old tool ends on a closed balance sheet, the new one starts from crisp opening balances, and comparing the two stays simple. Failing that, the end of a quarter or of a VAT period also draws a clear line.

That said, do not let the calendar decide alone. If your current tool costs you hours every week, waiting eight months for the next close often costs more than migrating mid-year.

Take inventory of what comes with you

A successful migration starts with a list. In practice there are five families of data to consider:

• The chart of accounts: bring your own, or use the change to restart on the standard SME chart.
• Opening balances: the starting balance sheet in the new tool, validated by your fiduciary.
• Open items: unsettled customer and supplier invoices, so collections and payments continue without a gap.
• Master data: customers, suppliers, products, everything that keeps day-to-day invoicing running.
• Documents: contracts, receipts, and records you will want at hand.

Not everything is mandatory. Some companies deliberately restart light, others want their full history. Both work; what matters is deciding it consciously rather than discovering it afterwards.

The ten-year rule

The Code of Obligations requires books and accounting records to be kept for ten years. Concretely: do not cancel your old tool before that access is secured. Export the journals, annual accounts, and records, or check that the old provider offers archive access. It is the point people most regret neglecting, and it takes an afternoon to settle.

Involve your fiduciary early

Your fiduciary has probably accompanied dozens of migrations already. Bring them in before the switch, not after: validating opening balances, handling the running VAT, planning the takeover. If your new tool gives them direct access to your books, checking happens along the way instead of in one block at the end.

Cut over cleanly

On the day, the recipe is three points: a clear cutoff date the team knows about, a short period of checking that payments and invoices flow correctly out of the new tool, and a checkpoint with your fiduciary after the first month. If you are cautious, keep the old tool open read-only for one full cycle; not to work in, just to compare against.

How it works at Mast

We wanted migration to be a conversation, not an ordeal: your data comes with you, and our team supports you at every step of the takeover. How much history to bring over is decided together, and your fiduciary can work directly in your books from day one. To see what the destination looks like, explore our Swiss accounting software.

Want to talk it through from your actual starting point? Book a demo or get in touch.