Guides

Month-end on Xero, explained.

In-depth guides to closing the books on Xero, plus quick how-tos for the app itself.

In-depth guides

The month-end close, in detail.

Quick how-tos

Using the app.

01

Run your first close

  1. Open the app and connect your Xero (read-only).
  2. Pick the month and year, then Open close.
  3. Work down each balance-sheet line - set a status and write what the balance is.
  4. That note carries forward to every future month automatically.
02

Lock a period & catch changes

  1. When you sign off, click Lock period - Postlock snapshots every balance.
  2. Any time after, click the locked period to run an integrity check.
  3. If something moved, Postlock names the document, who posted it and when.
  4. Open it straight in Xero, re-date or reverse it, and re-check until clean.
03

Build a movement schedule

  1. On a line like Prepayments, click + schedule and choose Movement.
  2. Add each item: its total, start month and number of months.
  3. Postlock straight-lines the release and ties the total to the GL.
  4. Next month it rolls forward on its own; expired items drop off.
04

Guard a board-pack figure

  1. Lock the period your board pack is based on.
  2. On the integrity check, declare your headline figure (e.g. Net Assets).
  3. Postlock confirms it still agrees with Xero - or flags the exact change.
  4. If it moved: update the pack, or restore the closed month in Xero.
05

Read the Excel pack

  1. From any close, click Download Excel pack.
  2. Cover summarises the close and your board-pack figures.
  3. Balance Sheet, Rec Index (with memos) and Schedules are your working papers.
  4. Post-Lock Changes is the audit trail of anything that moved after sign-off.
FAQ

Common questions.

Can Postlock change anything in my Xero?
No. It connects read-only and has no write access - it can never post, edit or delete. See Security.
Which accounting systems do you support?
Xero today. We focus on doing one integration properly.
Do I need to install anything?
No: Postlock runs in your browser. You connect Xero with a few clicks.
What happens when I disconnect?
Your Xero token is removed and Postlock stops pulling data.
What happens if I cancel?
You keep everything. Export your full account (every rec, memo, snapshot and change log) in one click, and the Excel packs you've downloaded roll forward on their own (the schedules carry live formulas). We'd rather earn next month than lock you in for it.
Do you use AI?
No: none, anywhere. Every check is deterministic logic written by an accountant: the same inputs give the same answer every time, and a reviewer can re-perform it by hand. Your ledger is never read by, sent to, or used to train a model. Why that's deliberate →

Read the full Xero month-end close checklist →

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