1. Get the statement data into NetSuite. If you've connected a live bank feed (through the Bank Feeds SuiteApp or a direct bank connection), transactions download automatically. If not, you import a statement file, usually CSV or OFX, from your bank's online portal.
2. Let NetSuite suggest matches. On the Match Bank Data page, NetSuite lines up downloaded bank transactions against existing NetSuite records, checks, deposits, bill payments, by amount and date. You review and accept the matches it got right.
3. Handle what didn't match. Bank fees, interest, a wire that hit the account before anyone recorded it in NetSuite: anything without a matching NetSuite transaction needs a new journal entry or payment created on the spot before it can clear.
4. Enter the statement ending balance and date. On the classic Reconcile Bank Statement page, you type in what the bank statement says the balance should be as of that date.
5. Resolve the difference. NetSuite shows you the gap between the statement balance and your cleared register balance. If it's zero, you finish the reconciliation. If it's not, you're going line by line until you find what's missing or duplicated.