She was hoping for a more lenient sentence after agreeing to co-operate as part of a broad deal which crucially involved the co-operation of her husband.
An earlier plea bargain, which would have reduced her sentence to just five months jailtime, was rejected by a judge at the last minute last month.
Andrew Fastow, Enron CFO when the company spectacularly collapsed in November 2001, has been charged with 78 counts of fraud, money laundering and conspiracy.
The one-year sentence handed down to his wife is the maximum term for filing false tax returns, but she avoided a potential 37 years of prison time if she had faced a jury on six felony counts.
The Fastows have agreed to forfeit almost $30m to Enron victims and Lea Fastow has also convinced her husband to co-operate with prosecutors in exchange for a 10-year prison sentence.
Does Darwin's theory apply to taxation? Colin ponders...
The EC has been instructed to draft a European Union (EU) directive authorising an EU financial transaction tax, which would apply to ten of the EU’s 28 member states
Accountancy watchdog the FRC has dropped its investigation into the former chief financial officer of Tesco, nearly two years after the supermarket was engulfed in an accounting scandal
Colin imagines how Apple's logo might change in the wake of the EC's ruling over its Irish tax arrangements