Hello Sue
There is no inheritance tax in the US at the federal level and there is also no inheritance tax in the state of WI.
Instead of inheritance tax, the IRS imposes estate tax, but that only applies to estates which exceed a certain value. For decedents who passed away in the year 2009, that value was $3.5 million. If your father's entire estate was below that value, no estate taxes would be due.
While you would not owe any inheritance taxes on the money in this trust, you may owe regular income tax if any part of the funds in the trust are inside of an IRA account or another tax deferred retirement account. Funds held inside of an IRA account have never been tax paid to begin with, so the beneficiary of such an account is liable for regular income tax when the funds are withdrawn.
If none of the $900,000 inside of the trust is part of a tax deferred retirement account, then you will owe no taxes on this money and you do not even need to report it on your tax return.
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Thank you Sue
Accountant
25+ years tax consulting. Specializing in returns for US citizens living abroad