IRS CP136: what it means and what to do
Your Form 941 tax deposit schedule for next year may change. The IRS bases it on the total tax you reported on Forms 941 during the lookback period (the four prior quarters). This summary is drawn from the IRS page for the CP136, last checked on October 13, 2026.
Why you received a CP136
- Your deposit requirements for next year are based on the tax you reported on Forms 941 during the lookback period, and they may differ from last year
What to do
- If your lookback-period liability was $50,000 or less, deposit as a monthly depositor, by the 15th of the following month
- If your lookback-period liability was more than $50,000, deposit as a semi-weekly depositor
- If the amounts on the notice don't match your records, work out the correct deposit schedule yourself
- If the notice shows zero tax for a period, file any missing Form 941 as soon as possible
If you disagree, or do not respond
If the liability on the notice looks wrong, base your deposit requirements on the original tax liability for the lookback period. The notice counts only original Forms 941, not amended ones.
Get your records together first
Most notices come down to matching what the IRS has on file against your own records. Before you reply, pull the return the notice refers to, the bank statements and income forms for that year, and any payment confirmations. If your books are reconciled to the bank, that comparison takes minutes instead of days.
Source and verification
IRS: Understanding your CP136 notice →
Last verified against that page on October 13, 2026. This is general information, not advice for your situation. The notice itself is the authority on your amounts and dates. Talk to a CPA or enrolled agent if the amounts are large or you are unsure.
Related
- All IRS notices explained
- IRS CP162 — The IRS charged your partnership or corporation a penalty because the return was not filed electronically as required.
- IRS CP2100 / CP2100A — As a payer who filed information returns such as 1099s, you included payee names or taxpayer identification numbers (TINs) that were missing, obviously incorrect, or didn't match IRS records.
- IRS CP575 — The CP575 is a digital notice confirming your business's Employer Identification Number (EIN).
- Find an accountant — for help responding.
Frequently asked questions
What is an IRS CP136 notice?
Your Form 941 tax deposit schedule for next year may change. The IRS bases it on the total tax you reported on Forms 941 during the lookback period (the four prior quarters).
What if I disagree with the CP136?
If the liability on the notice looks wrong, base your deposit requirements on the original tax liability for the lookback period. The notice counts only original Forms 941, not amended ones.
How do I report my payments on Form 941?
You don't need to. The IRS already has a record of your payments, so you report only your tax liabilities.
How do I report my tax liabilities?
Monthly depositors enter the taxes for each month in Part 2 of Form 941. Semi-weekly depositors use Schedule B (Form 941).
Do I have to make deposits electronically?
Yes, unless your liability is under $2,500, or the prior period's tax was under $2,500 and you didn't owe $100,000 due the next day. A quarterly liability under $2,500 can be paid with the voucher attached to Form 941.
What if my accumulated liability reaches $100,000?
You must deposit by the next business day, and you become a semi-weekly depositor for the rest of this year and all of next year.
More on US compliance
US Sales Tax: Nexus, Marketplace Facilitator & Multi-State Filing
Nexus thresholds after Wayfair, marketplace facilitator rules, and the registration / collection / remittance loop for multi-state SMBs.
Read sales taxSales Tax Penalties & Interest by State
Late filing and late payment penalties, the minimums that apply even when you owe nothing, and how each state sets interest.
Read penalties & interest1099-NEC and 1099-MISC Filing: Thresholds, Forms & Due Dates
When to issue 1099-NEC vs 1099-MISC, the $2,000 threshold (from 2026), January 31 due dates, and W-9 collection workflow.
Read 1099 filingUS Payroll: W-2, W-4, FICA, FUTA & Federal/State Withholding
W-4 onboarding, FICA + FUTA computation, state withholding, and the W-2 / W-3 cycle that closes out the year.
Read payroll & w-2State Franchise Tax: Delaware, California, Texas & New York
The flat-fee state taxes LLCs and corporations owe just for existing — DE annual report, CA $800 minimum, TX margin, NY biennial.
Read franchise taxQuarterly Estimated Tax: Form 1040-ES, Safe Harbor & Due Dates
How to compute Form 1040-ES, the safe-harbor rules, the four due dates, and how HelloBooks pre-fills the worksheet from your books.
Read quarterly estimated taxUS Tax Changes for 2025 and 2026: OBBBA, Limits & 1099 Thresholds
OBBBA changes for 2025 returns and 2026 planning: new deductions, SALT cap, bonus depreciation, R&E, 1099 thresholds and 2026 limits, each sourced to IRS.gov.
Read 2025-26 tax changesAccounting software by city
Local guides for major US metros — bank coverage, state sales tax and nexus, and how HelloBooks automates the books.
Authoritative sources
US tax rules change every filing season. Always verify the current position with the official sources below before filing.
- IRS — irs.govInternal Revenue Service. Forms, publications, due dates, and current-year thresholds for federal income tax, payroll tax, and 1099 reporting.
- IRS — Forms & InstructionsCanonical PDF forms (W-4, W-9, 1099-NEC, 1040-ES, 941, 940, W-2, W-3) with current-year instructions.
- SSA — Business Services OnlineSocial Security Administration portal for W-2 / W-3 e-filing, EIN verification, and AccuWage validation.
- Streamlined Sales Tax — streamlinedsalestax.orgMulti-state Streamlined Sales and Use Tax Agreement (SSUTA) — registration in 24 SST member states with one application.
- Tax Foundation — Sales Tax & NexusIndependent state-by-state research on sales tax rates, economic nexus thresholds, and franchise / margin tax structures.
Run all of this on autopilot in HelloBooks
US sales tax, state franchise tax, and quarterly estimated tax workflows are built into the free plan. Plaid connects 11,000+ US banks so transactions land in your books automatically. 1099 generation and Gusto-backed payroll are in private preview — ask us for access.
Working with an accountant on HelloBooks
Free, vetted directory of independent firms. Every partnership tier is earned, never paid for — we verify credentials against the official registry before any profile goes live.