Bring Last Year’s Books Up to Date
Yes, prior year bookkeeping can often be completed from bank and card statements, invoices, receipts and other business records. The approach depends on what already exists, which periods are incomplete and whether a tax return for that year has been filed.
Reconstruct the year in sequence
Start with a supported opening balance and work through each month. Include closed accounts, payment platforms and loans used during the year. A bank statement gives valuable evidence, but it may not explain the business purpose of a purchase or distinguish customer income from owner funding. Those details need supporting records or a documented explanation.
Keep filed and unfinished years distinct
If the tax return is already filed, give the tax professional a clear summary of corrections that change income, expenses or balances. They can determine whether any tax action is necessary. Completing the bookkeeping does not itself amend a return or establish how a correction should be reported for tax purposes.
Define what completion means
A finished project should identify the covered months, reconciled accounts, corrected reports and any unresolved records. For example, eleven available statements and one missing statement are a document gap to resolve, not a reason to guess a month of activity. Keep the original records and the correction history. Once the older year is supported, its closing balances provide a more dependable starting point for the current year.