$100,000 Next-Day Deposit Rule
If you accumulate $100,000 or more in taxes on any day during a monthly or semiweekly deposit period (see Deposit period , earlier in this section), you must deposit the tax by the next business day, whether you’re a monthly or semiweekly schedule depositor. The $100,000 tax liability threshold requiring a next-day deposit is determined before you consider any reduction of your liability for nonrefundable credits.
For purposes of the $100,000 rule, don’t continue accumulating a tax liability after the end of a deposit period. For example, if a semiweekly schedule depositor has accumulated a liability of $95,000 on a Tuesday (of a Saturday-through-Tuesday deposit period) and accumulated a $10,000 liability on Wednesday, the $100,000 next-day deposit rule doesn’t apply because the $10,000 is accumulated in the next deposit period. Thus, $95,000 must be deposited by Friday and $10,000 must be deposited by the following Wednesday.
However, once you accumulate at least $100,000 in a deposit period, stop accumulating at the end of that day and begin to accumulate anew on the next day. For example, Fir Co. is a semiweekly schedule depositor. On Monday, Fir Co. accumulates taxes of $110,000 and must deposit this amount on Tuesday, the next business day. On Tuesday, Fir Co. accumulates additional taxes of $30,000. Because the $30,000 isn’t added to the previous $110,000 and is less than $100,000, Fir Co. must deposit the $30,000 by Friday (following the semiweekly deposit schedule).