As for many others, my 2009 income was drastically reduced compared to
2008. As a consequence my tax is very low. The estimated tax paid for
2009 was significantly greater than my tax liability.
I remember something about a "safe harbor" level of estimated tax payment (for 2010). If I pay 110% of my 2009 tax for 2010 estimated tax, I will be off the hook even if my 2010 income is (hopefully) significantly in excess of my 2009 income.
Do I remember correctly? Am I just wishful thinker?
For federal you're right. If your 2010 AGI is low enough the prior year safe harbor is just 100% of last year's income.
But here's where it is wishful. For California, if your 2009 or 2010 AGI is above $1,000,000, you cannot use prior year safe harbor. I think this law was introduced for 2009, and it in effect for 2010 as well. For New York, they still allow prior year safe harbor, but you have to recompute your prior year tax using the new rates that went into effect in 2009 (they added two new rates 7.85% and 8.97%).
If your state has an income tax make sure you check to see what it's requirement is. For example, MD is 110% of last year's tax regardless of last year's income.
(F1) If you're a farmer or fisherman, you only have to pay the smaller of 100% of last year's income or 66 2/3% of this year's income -- for the rest of us, the rule is the smaller of 100%/110% of last year's income or 90% of this year's income. So can I grow a few tomatoes and call myself a farmer to take advantage of this sweet rule? The instructions for 2210-F say that 2/3 of your gross income must come from farming or fishing.
(F2) Also, if you don't make estimated payments and file and pay your tax by March/1, then there is no underpayment penalty. This rule is only for farmers and fisherman.
(Q1) In general, there is a new rule for 2009. If you have a qualified small business, you have to pay the smaller of 90% of last year's income or 90% of this year's income. Not sure if this rule is there in 2010.
Qualified individuals with small businesses.
Your AGI in 2008 was less than 0,000 (0,000 if married filing separately in 2009). * More than 50% of your gross income in 2008 was from a small business, which is defined as a trade or business in which you were an owner during the calendar year 2008 and that averaged less than 500 employees for 2008.
(D1) There is a waiver of penalties for federal disaster areas. If a disaster happens in June, the March/15 or April/15 estimated payment due date is not postponed, but the June/15 and later ones may be. It is not necessary to file form 2210.
(D2) Even if it's not a federal disaster, you may still have a waiver of penalties.
Furthermore, California has messed with how much is due at each payment, to accelerate more money received earlier. It's no longer 25% at each due date.
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