Keeping Personal & Business Tax Records
A good recordkeeping structure is a solid start. The Ventura County Star recommends you make a list of your important assets and then organize your files in the same order. This provides for easy document retrieval. Ensuring that all your records are filed will help you at tax time.
The Internal Revenue Service (IRS) recommends individual filers keep all records that support the figures shown on your tax returns. This includes income information, such
It is recommended that you keep three years of tax information or viewed differently, two years from the date you paid the tax, whichever is later. With computerized filing becoming more prevalent, you should also keep your software with your tax information with electronic copies of your returns. This will allow you to reproduce a particular years’ return if necessary.
If you do not file a return, the IRS recommends you keep your tax records for all tax years. If you file a claim for a loss from worthless securities, the IRS recommends you keep seven years of tax records. If you do not report income that you should and it’s more than 25 percent of the gross income shown on your return, the IRS recommends you keep six years of records.
The IRS recommends that you safeguard your information in order to thwart all attempts of identity theft. An identity thief might use your Social Security Number to file a return so they can receive a fraudulent refund. Make your choice of a tax preparer carefully as well.
More information is available from the IRS in Publication 552, Bookkeeping for Individuals .
A solid bookkeeping system is necessary for your business too. Clearly showing your income and expenses is important but the law does not require any special kind of records. The IRS recommends that your bookkeeping systems should include a summary of your business transactions. Your company books should show your gross income, deductions, and credits. The main source of these entries might be the business checkbook. As with individual taxpayers, all information should support the amounts shown in company tax returns.
Gross receipts can be supported by cash register tapes, bank deposit slips, receipt books, invoices, credit card charge slips, and any Forms 1099-MISC, according to the IRS. Purchases can be documented with canceled checks, cash register tape receipts, credit card sales slips, and invoices. Canceled checks, cash register tapes, account statements, credit card sales slips, invoices, and petty cash receipts will support expense figures.
The IRS has resources for businesses available on its web site including: Businesses with Employees - Employment Tax Recordkeeping,  What Kind of Records Should I Keep?  and Starting a Business and Keeping Records.