Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Why don't banks give access to all your transaction activity?
Many good points have been brought up, and I'll just link to them here, for ease. Source: I work at a credit/debit card transaction processing company on the Database and Processing Software teams. See mhoran_psprep's answer. See Chris' answer. Believe it or not, banks don't expose their primary (or secondary) database to end users. They don't expose their fastest / most robust database to end users. By only storing x days of data in that customer-facing database and limiting the range of any one query, any query run against it is much less likely to cause system-wide slowness. They most definitely have database archives which are kept offline, and most definitely have an employee-facing database which allows employees to query larger ranges of data. What would a bank have to gain by allowing you to query a full year of transactions?