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The money

At nine at night, the drawer balances or it does not.

And when it does not, the question is not how much is missing: it is where it went. Itzli is built so that question has an answer before anyone goes home.

See it with my numbers

Why a shared drawer never balances

When three people take payments out of the same drawer, the shortfall has no owner. Nobody lied: too much change went out, a test got charged at the old price, someone took cash for fuel and meant to write it down. At the end of the day there is a difference and an awkward conversation that leads nowhere, because there is no way to know which of the three shifts it happened in.

That is why the drawer belongs to an employee, not to a branch. Each cashier opens their own and can only have one open at a time. A shortfall stops belonging to the laboratory and starts belonging to a shift, with a name and a time on it — which is the only thing that makes it fixable.

The close

How a shift closes

Four steps, and the third one changes everything.

01

Opens with a float

The cashier declares what they start with. That time is the start of the close window, and everything charged afterwards falls inside it.

02

Takes payments through the shift

Every payment issues its receipt, can be reprinted on thermal or letter paper, and stays tied to the order it paid for.

03

Counts blind

At close, the system does NOT show what should be there. They count the physical cash first and declare it; the difference appears afterwards. If they saw the expected number, they would write it down.

04

Counted by method

Cash is reconciled separately from card and transfer. Mixing them hides exactly the shortfall you are looking for: only cash can walk out in a pocket.

A blind close is not distrust, it is method. A count taken with the answer in front of you stops being a count. Closing blind is what turns the close into a fact instead of a formality — and when it balances, the cashier has proof in their favor, not just the boss a suspicion.

The details that bite

What usually throws it off, and what Itzli does

The payment taken twice

If the network drops at the worst moment and the cashier presses again, the second attempt returns the original payment instead of duplicating it. There is no phantom charge nobody can trace later.

The order with an unpriced test

It cannot be charged, and the block says which test and what it is missing. Charging it would settle a line with no amount: the imbalance would be born there and surface weeks later.

The cash that went out for fuel

It gets recorded as a withdrawal or an expense from the same drawer, right then. It stops being a missing bill and becomes a movement with a reason.

The cash refund

A credit note can return cash, and that outflow enters the close of the shift that received the payment. Otherwise the paperwork would balance and the drawer would not.

The ranch payment that arrived at 19:40

It attaches to the close that was open when it happened, not to the one open when it uploaded. Otherwise twelve field payments would land together at the end of the day and no ranch close would ever balance.

And on to the invoice, without typing it again

The payment already knows what was paid and for which order. Invoicing is stamping it: CFDI 4.0 with its payment complements, and credit notes when something has to be returned. The tax authority concepts are neither translated nor invented — they come from the official catalog.

What Itzli does not do: it is not your accountant. It stamps, stores and lets you download; the bookkeeping, the filings and what is deductible still belong to whoever keeps your books.

If your drawer does not balance, you do not pay

Sixty days. It is the only guarantee we give and it is about this, because it is the one thing a laboratory owner can verify alone, without taking our word for anything: if after two months your drawer still does not balance, you do not pay us.

Let us close a shift with you

In the demo we open a drawer, charge a couple of orders, take an expense out and close it blind. With your prices, not with an example.

  • We migrate your catalog, at no cost
  • 30-day trial on your real operation
  • If your cash drawer does not balance in 60 days, you do not pay

No commitment. Your data is handled under Mexico’s federal data protection law (LFPDPPP).