Five accounting tasks you can automate with ChatGPT today. Each task takes one to two minutes with the right prompt and replaces a manual process that takes 15 to 30 minutes. No special setup is required, no API keys are needed, and no complex configuration is necessary. You just export the relevant data from your accounting system in CSV format, upload it to ChatGPT, paste the prompt, and review the output before using it in your workflow.
The pattern is identical for all five tasks which makes it easy to learn once and apply repeatedly. Export your data, upload it, run the prompt, review the output, use the result. The two most impactful tasks are bank reconciliation and accrual journal entries. Bank reconciliation typically takes two to three hours manually for a mid-size company with multiple bank accounts. ChatGPT processes the same data in under two minutes and produces a reconciliation statement ready for auditor review. Accrual journal entries follow predictable patterns each month and ChatGPT generates them with automatic debit-credit validation to prevent the most common journal entry error.
Pick the one task that costs you the most time each month. Run it once with real data, review the output carefully, adjust the prompt if needed, and you have a template you can reuse every month without modification. Each subsequent run is faster than the last because the prompt is already refined and tested.
Starting with Bank Reconciliation
Bank reconciliation is the highest-impact automation target because it touches every bank account every month without exception. Most controllers perform this task manually by printing bank statements, printing GL reports, and checking each line with a highlighter. The process is tedious and error-prone. ChatGPT handles it in under two minutes by processing all statements simultaneously, matching thousands of transactions against your GL entries, and categorizing differences by type so you only investigate items that actually need your attention.
Prompt: Bank Reconciliation
Match the attached bank statement CSV file against the GL cash account export. Match transactions by date within two working days to account for weekend and holiday timing differences, by amount within a EUR 10 tolerance to handle small FX differences and bank fees, and by reference text using partial matching where the GL document number appears as a substring in the bank reference field. List the matched transactions first showing each side by side for verification purposes. Then list the unmatched items grouped by category including timing differences where the same transaction appears in different accounting periods, missing GL entries where the bank shows a transaction but no corresponding GL entry exists, missing bank entries where the GL shows a transaction but the bank statement does not include it, and amount discrepancies where the reference matches but the amounts differ. For each error-type unmatched item suggest the corrective journal entry with the specific debit and credit accounts and a clear explanation of what the entry corrects so the controller can approve it with confidence. Provide a reconciliation statement showing the opening GL balance, adjustments identified, closing GL balance, and the remaining net difference suitable for auditor review and controller sign-off.Accrual Journal Entries Made Simple
Month-end accruals follow the same pattern every period. Payroll for days worked but not yet paid, prepaid expenses that need monthly amortization, and unpaid supplier invoices for services received but not yet billed. These entries are formulaic in structure but time-consuming to prepare because each requires checking source documents and applying the correct accounts. ChatGPT generates all three entries at once with validated debit-credit balance so nothing is missed.
Prompt: Accrual Journal Entries
Generate the month-end accrual journal entries for three common items based on the attached supporting data. First the payroll accrual for five working days of wages outstanding at month-end where the total gross payroll for those days is EUR 47,500 split 70 percent to cost of sales at account 5100 and 30 percent to administrative expenses at account 6200. Second the prepaid insurance amortization where EUR 12,000 annual premium was paid in January and two months have been consumed representing EUR 2,000 to be charged to insurance expense at account 6520 with the corresponding credit to prepaid insurance. Third the accrual for unpaid supplier invoices estimated at EUR 45,000 from the attached AP aging for services received but not yet invoiced with the credit to accruals at account 2100. For each journal entry show the specific debit and credit accounts, the amounts, and clear explanatory text. After generating all entries validate that total debits across all entries exactly equal total credits and flag any imbalance immediately for correction before the entries are imported into the ERP system.Each automated task saves approximately two hours per month. Five tasks equals ten hours per month or 120 hours per year which is three full work weeks returned to you for higher-value work. Start with the task you hate the most and build from there one prompt at a time.