Home>Migrations & Replatforming>Lightspeed>Cash Rounding Changes After a Shopify POS Cutover

Does migrating from Lightspeed to Shopify change how we handle price rounding and cash transactions in physical stores?

Cash rounding changes hands from your configuration to Shopify's. Shopify POS applies Swedish rounding automatically in nine countries, including Canada at $0.05 CAD and Australia at 0.05 AUD, on cash payments and refunds only (Shopify Help Center, September 2026). Lightspeed made you set rounding per payment type, defaulting to 0.01.

The two products make opposite default assumptions

This is the clearest example in the whole migration of a setting that does not move and does not need to, but that changes behaviour at the till on day one.

Lightspeed Retail X-SeriesShopify POS
DefaultSales round to 0.01, meaning no practical rounding, and rounding applies only to payment types where it is explicitly enabled (Lightspeed, Sep 2026)Automatic in nine countries with a set denomination per country (Shopify, Sep 2026)
ConfigurationPer payment type; you pick a denomination and a rule such as "Round midpoint up"Store-level; you may "select No rounding" or choose nearest denomination, always round up, or always round down
MethodConfigured"The Swedish rounding method to round to the nearest denomination"
Applies toThe payment types you enable it on"All cash payments or refunds," and "non-cash payments aren't rounded"
WhenOn the amount owed"After discounts and taxes are applied"

Shopify's automatic countries and denominations: Australia 0.05 AUD, Belgium €0.05, Canada $0.05 CAD, Denmark 0.50 DKK, Finland €0.05, New Zealand 0.10 NZD, Norway 1.00 NOK, Sweden 1.00 SEK, Switzerland 0.05 CHF. From 26 July 2026 it also applies automatically to new stores in fourteen further countries including Chile, the Czech Republic, Iceland, Israel, Jamaica and Peru (per Shopify Help Center, September 2026).

Who this actually changes, and who it does not

  • A US-only retailer: nothing changes. The United States is not on Shopify's automatic list, and the US has no cash-rounding convention to apply. Take this page as a check, not a task.
  • A Canadian retailer: likely nothing changes in outcome, because you were almost certainly already rounding to $0.05 in Lightspeed. What changes is who decides. Shopify applies it; you no longer configure it per tender.
  • A retailer in one of the nine with rounding switched off in Lightspeed: behaviour changes on day one. Cash totals will start landing on a different final digit and your cashiers will notice before your finance team does.
  • A retailer in the fourteen new countries: read the wording carefully. The 26 July 2026 expansion applies automatically to new stores. An existing store is a different case and should be checked in the admin rather than assumed.

The accounting consequence nobody stages for

In Lightspeed, the rounding difference is an explicit line you map to an account. Its Xero guidance states that "you must map the correct Xero expense account to cash rounding expense" (per Lightspeed X-Series support, September 2026). Rounding lives in your chart of accounts because you put it there.

After cutover, the rounding difference arrives through Shopify's order and payout data instead, and if your accounting integration was mapping a Lightspeed-specific cash-rounding expense account, that mapping has nowhere to land. The symptom is a recurring few-dollars-a-day variance on the cash account that nobody can source. It is small enough to ignore for a month and annoying enough to consume a week when someone finally chases it.

Stage for it: have your bookkeeper name the destination account for rounding differences before go-live, and check it on day three rather than at month-end.

Other in-store tender behaviours worth checking in the pilot, not in production

  • Store credit as a tender. Shopify's native store credit works in POS, but it "can't be active as a payment method on Shopify POS without it also being active on your online store" (per Shopify Help Center, September 2026). A retailer who wanted store credit in-store only has a decision to make.
  • Cash discounting. Lightspeed X-Series has a dedicated cash-discounting setup. If you are running one, confirm how it is reproduced in Shopify before cutover rather than after.
  • Split tenders and partial store credit. Shopify's store credit applies in full amounts only; "partial amounts aren't permitted" (per Shopify Help Center, September 2026).
  • Register closure reports. Lightspeed surfaces the rounding difference on register closure. Confirm which Shopify report your store managers will use for the same check, and tell them before day one.

When NOT to change the rounding setting

  • On cutover week. Take Shopify's default, watch it for a fortnight, then change it if the till counts say so. Changing two variables at once makes the variance unattributable.
  • To match Lightspeed exactly for its own sake. If the outcome is the same to the customer, matching the configuration is nostalgia.
  • Without telling the store managers. This is the one change on the whole migration that a cashier notices within an hour, and they should hear it from you rather than from a customer.

The Deploi point of view

Our own position, from building on Shopify. Separate from the facts above.

  • Our take: This is a small change with an outsized ability to erode confidence in a cutover. The money at stake is a few dollars a day. The cost is that a store manager who finds an unexplained variance in week one stops trusting every other number the new system produces, and that mistrust is expensive to rebuild.
  • What we tell clients to do first: Name the destination account for rounding differences before go-live, and check it on day three rather than at month-end. The mapping that pointed at a Lightspeed-specific cash-rounding expense account has nowhere to land after cutover, and an unowned few-dollars-a-day variance is small enough to ignore for a month and expensive enough to consume a week.
  • Where we disagree: Migration checklists file rounding under configuration. It belongs under change management. The configuration takes ten minutes; briefing the people at the till is the actual task.
  • What this page adds: that Shopify applies Swedish rounding automatically in nine named countries while Lightspeed defaults to 0.01 per payment type, that the US is not on the list and so US retailers see no change, and that the recurring cash variance after cutover is usually an unmapped rounding-expense account rather than a till error.

Reviewed by Martin Dejnicki, Director of SEO & AI Search. Facts verified 2026-09-14.