If a Ally Bank month will not tie out, the answer is in the statement itself — it always is. This page is the systematic way to find it: anchor the balances, walk the rows, and read the difference as a clue.
Ally is online-only: there is no paper workflow to reconstruct, and statements exist purely as downloads from the app or website.
Reconciliation fails in instructive ways, which is why it is worth doing before import rather than after. A difference the size of one transaction means a row is missing or doubled; twice a transaction means a sign flipped; a few cents means a digit was misread somewhere. The check on this page reports which pattern a statement fell into by naming the rows where the running balance breaks, so the hunt starts at the right row instead of the first page. The methodology page explains the arithmetic in full.
These are the general steps most banks follow for statement downloads; exact menu labels vary by bank and change over time.
One habit separates fast reconciliations from slow ones: read a Ally Bank statement in the order the bank printed it before sorting it any other way. Running balances only make sense in print order, pending items cluster at period boundaries in print order, and the bank's own section subtotals — free checkpoints — exist only in print order. Convert the PDF from Statements in the Ally app and ally.com, walk it as printed, and let the accounting software do the reordering afterwards.
Inherited books deserve a colder eye: trust nothing that is not tied to a statement. Start at the most recent statement and work backwards only as far as the engagement requires, proving each month against its own document before accepting its closing balance as the next month's ground. Where a predecessor forced a reconciliation to agree, the plug usually sits in an adjustments or suspense entry — find those first, because every honest month built on a plugged balance inherits the error.
Deposit statements print an opening and closing balance, and most print a running balance per transaction. Card statements print Previous and New Balances instead. The reconciliation check uses whichever the statement provides; a statement with no balances at all is reported as unverified.
A cheque written but not yet cleared, or a deposit recorded but not yet at the bank, makes honest books differ from the statement by exactly those items. They are listed, carried forward, and expected to clear next month — they are not errors.
You can import in batches, but prove the months individually and in order. Three months reconciled as one blob hides which month owns a difference; the chain check needs each month's closing balance separately.
Yes, with lower stakes and the same shape: opening balance, interest and any transfers, closing balance. Savings accounts statement monthly at most banks; CDs often statement quarterly or at term events. Prove each document that exists, and let the chain check span the quiet periods.
Usually not an error: running balances depend on the order transactions are walked, and the software may order same-day items differently from the bank. Agreement at the closing balance with every transaction present is the substance; mid-month ordering differences on the same posting date are cosmetic.
Ally Bank statement converter hub · How to download Ally Bank statements · The Ally Bank statement guide on the blog · Ally Bank statement to QuickBooks · Ally Bank statement to Excel
Your first conversion is free — no card, no sign-up — and every result is reconciled against the statement itself before you download it.