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Transaction Recording

Based on source documents (purchase, sales invoices, bank statements, cash documents etc.) i record transactions in accounting journal. Example of accounting records you can see here.
To record transactions i use accounts from "approved" chart of accounts. I assign appropriate accounts to each transaction.
I use double-entry/dual-entry accounting system (transaction is recorded at least in two accounts, debit and credit).
Before recording the transaction i examine/study supporting documents (date, partners, essence of transaction, etc.).

Preparation of data for VAT Returns

Gathering all relevant data related with VAT transactions (sales, purchase invoices, etc.) during the reporting period. Reviewing the collected data to ensure its accuracy and completeness (verifying supporting documents and essence of transactions).
Example of prepared data for VAT Return you can see here. To get data for VAT Return, program code sums-up and/or subtract certain accounts balances for defined period.

Completing periodical reconciliations

Reconciliation of bank statements with accounting records, comparing balances. Identification and resolve any discrepancies or errors found during the reconciliation process.
To reconcile bank statement balances with accounting balances, i can open "trial balance", "go" to necessary bank account and compare amounts (turnover). If amounts are different, i can click on amount and see details (all transactions). Then compare each record with data in bank statement.

Reconciliation of credit cards transactions with accounting records. Verifying that all purchases, payments, fees, and interest charges are correctly recorded in both the credit card statement and accounting records. Rectify any discrepancies by investigating missing or duplicate transactions, posting errors, or billing disputes.

Reconciliation of Accounts Receivable (AR) with Customer Invoices and Accounts Payable (AP) with Vendor Invoices. Example for Accounts Payable you can see here.

Reconciliation of payroll transactions recorded in the accounting system with payroll registers or reports generated by the payroll provider.

Preparing accounts to trial balance

Compiling and checking of all ledger accounts (revenue, expenses, assets, liabilities, and equity). Reviewing the trial balance for accuracy and completeness, making adjustments as necessary to correct errors or inconsistencies.
Please, see example of "trial balance".