IRS publication 552, covers Record Keeping for Individuals. (They have a separate one for Business). It covers record keeping (what and how long) for tax records and supporting docs. Pretty easy to understand. Minimum for tax-related is 3 years, but it could be as long as 7.
A person should keep personal tax records for about 7 Years in Australia.
4 yrs
You should keep records of your income tax to prove you did it correctly if questioned later.
We must keep tax records for 10 years for a business
You should keep your business records for a minimum of three years for federal income tax purposes. Records retention for state tax agencies varies, but three years would also be a minimum for these tax authorities as well. Note that your records having to do with any depreciable capital assets should be kept until at least three years after the assets are disposed of. Also, any records having to do with tax carryover items should be kept for at three years after the carryover is used up.
A small business should keep tax records for at least seven years.
A person should keep personal tax records for about 7 Years in Australia.
4 yrs
You should keep records of your income tax to prove you did it correctly if questioned later.
We must keep tax records for 10 years for a business
A tax preparer is typically required to keep records of clients for at least three years after the tax return is filed.
TurboTax keeps records for tax purposes for up to seven years.
You should keep your business records for a minimum of three years for federal income tax purposes. Records retention for state tax agencies varies, but three years would also be a minimum for these tax authorities as well. Note that your records having to do with any depreciable capital assets should be kept until at least three years after the assets are disposed of. Also, any records having to do with tax carryover items should be kept for at three years after the carryover is used up.
8 years.. earlier it was 10 years
At least ten years.
The IRS recommends keeping tax records for at least three years after the filing date of your tax return if you owe no additional tax. If you claim a credit or refund after filing, keep records for two years from the date you filed or three years from the due date of the return, whichever is longer. For situations involving underreporting of income, keep records for six years. In cases of fraud or if no return was filed, there is no statute of limitations, so keep records indefinitely.
Various companies keep the records various times. For the most part (for tax purposes) it is best to keep all records for 5 to 7 years after the date.