The Tax Court, by a memorandum opinion, held that the petitioners had understated their taxable income for the years 1943 to 1948, inclusive, and that the deficiencies, in part, for each of the years, were due to fraud with intent to evade tax. The petitioners bring the Tax Court’s determination before us for *240 review. The evidence sustains the fraud findings. In determining income by the net-worth basis, the Tax Court held that the evidence showed that the taxpayers did not, at the beginning of the tax period, have a hoard of cash on hand. The finding of the Tax Court is based upon inferences which it was fully justified in drawing from the evidence before it. The petitioners here urge that the statute of limitations has barred the assessment and collection of the tax deficiencies and penalties. The question was not raised by the pleadings and the Tax Court properly held that the Commissioner was under no burden to show that waivers or extensions had been made. We find no error in the Tax Court’s decision and its judgment is

Affirmed.