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Zelvorm Books · feature

Once a month is closed, it stays closed.

A lock date closes your books up to a day you choose. Nothing can be posted on or before it, so the figures you gave your accountant or the tax office stay the same. Only the owner can move it.

Settings · Lock dateExample
Books closed up to
31 Oct 2026
Post on 28 Oct
Refused
Post on 3 Nov
Accepted
The difference

The usual way

Old months keep moving

Someone back-dates an expense and last quarter's profit changes after you've already filed it. Now two sets of numbers exist and nobody knows why.

With Zelvorm Books

A hard line in the calendar

The rule is enforced by the database on every kind of posting, so no screen or import can get around it. Corrections go in on a later date, where they can be seen.

How it works

  1. 1

    Finish the month

    Match the bank, enter the bills, check the reports. The Month-end close board can walk you through it.

  2. 2

    Set the date

    In Settings, the owner picks the last day of the closed period.

  3. 3

    Carry on

    Anything dated on or before the lock is refused. The lock date also shows on your calendar.

What you get

01

Figures you can stand behind

Numbers you've reported can't change underneath you.

02

Enforced on every path

It's a database rule, so imports and automations follow it too.

03

Owner only

Only the owner can move the date.

04

Corrections stay visible

They go in on a later date rather than rewriting history.

Private to your business

Every row is locked to your business by the database.

Checked by the database

Entries that don't balance are refused.

No card, no trial

The core ledger is free for as long as you use it.

Questions

Lock date, answered.

Close a month once it's final, so its figures can never change.

Only the owner of the business.

Free bookkeeping, done properly.

No card, no trial, no catch. Signing up never adds you to our client list.