Accounting and Payroll — United States (Investor-Grade, Downstream Focus)

What happens

• Domestic payroll continues. Preliminary seasonally adjusted employment in accounting, tax preparation, bookkeeping, and payroll services was 1125.9 thousand in the latest October print. The occupation employment figure is 1595200. The handbook lists accounting, tax preparation, bookkeeping, and payroll services at 21 percent of accountant and auditor employment. The median annual wage in May 2025 was 83680 dollars, and the median inside this industry was 81490 dollars.

  data.bls.govbls.gov

• ADP pays approximately 26 million workers in the United States, which the filing also states as approximately 1 out of every 6 U.S. workers. In fiscal 2026 it moved more than 3.5 trillion dollars of U.S. client funds and delivered more than 79 million year-end tax statements. Client funds on the balance sheet were 43957.8 million. Paychex served approximately 800,000 payroll clients, pays 1 in 11 U.S. private-sector workers, and moved approximately 1.3 trillion dollars.

  sec.govsec.gov

• A China stop removes a named processing line, not the domestic pay run. ADP offers wage and tax collection or remittance in China, Hong Kong, Macau, and Taiwan, among other places. Paychex international locations are Denmark, Germany, Canada, India, Serbia, and Israel. The Paychex filing does not name China or Taiwan. No single ADP client exceeded 2 percent of annual consolidated revenues.

  sec.govsec.gov

• China-client audit exposure that is counted is the PCAOB register, not a Big Four revenue footnote. As of 31 December 2025 the jurisdiction table lists 42 firms in China, 30 in Hong Kong, and 13 in Taiwan, inside 798 non-U.S. firms and 1444 firms in total. The calculated China share of non-U.S. registered firms is 5.3 percent. The calculated Taiwan share of non-U.S. registered firms is 1.6 percent.

  pcaobus.org

• The short clock is a pay cycle, not a year-over-year price peak. In February 2023, biweekly was the most common length, with 43.0 percent of U.S. private establishments paying their employees every 2 weeks. Unadjusted industry employment was 1187.2 thousand in April 2026 and 1097.3 thousand in May 2026. The calculated filing-season step-down is 7.6 percent.

  bls.govdata.bls.gov

• The cyber fact that was fetched for the United States is the critical-infrastructure advisory, not a measured payroll outage in days. On 7 February 2024 CISA, NSA, and FBI released the joint advisory on PRC state-sponsored actors maintaining persistent access to U.S. critical infrastructure. The financial-services sector page covers depository institutions and critical financial utilities. The US advisory does not name payroll and has no day count. The only measured payroll case opened here is a labeled foreign analog. The notice covered approximately 1600 employees. Wave order is a planning model.

  cisa.govcisa.govhealth.nsw.gov.au

What stops, what still pays, and what can halt a payday

1. China trade stopping removes the countries ADP names for wage and tax collection or remittance: China, and also Hong Kong, Macau, and Taiwan on the same sentence, plus India and Malaysia. The U.S. PEO is only for employees located in the United States. Domestic pays of approximately 26 million U.S. workers are not a China export.

   sec.gov

2. China-client audit stops where the lead firm is in China. The jurisdiction table lists 42 firms in China. Hong Kong is a separate row of 30 firms and is not relabeled as mainland China here. A U.S. firm that only refers work to a China member firm loses that referral. The 10-K does not print referral fees.

   pcaobus.orgsec.gov

3. Taiwan exports slowing hits two counted items and not a foundry share. The jurisdiction table lists 13 firms in Taiwan. ADP names Taiwan as a wage-and-tax remittance country. Neither page prints a Taiwan worker count, a Taiwan dollar total, or a chip bill of materials for a payroll server.

   pcaobus.orgsec.gov

4. The domestic break inside one pay cycle is a file that does not fund. Biweekly covered 43.0 percent of private establishments, and those employers are paying their employees every 2 weeks. Weekly was 27.0 percent, semimonthly 19.8 percent, and monthly 10.3 percent, all for February 2023. A missed file is late inside that cycle.

   bls.gov

5. Client money is the settlement exposure. Total funds held for clients were 43957.8 million dollars at 30 June 2026 against 30985.7 million dollars a year earlier. The annual U.S. flow was more than 3.5 trillion dollars to employees, tax authorities, and other payees. A cyber stop of that movement is the week-1 cash event. The financial-services page is the critical-infrastructure frame, and it does not name the processor.

   sec.govcisa.gov

6. CPA distribution is how the smaller payroll book is sold. More than 50 percent of Paychex payroll clients come from referral sources that include CPAs, banks, and brokers. ADP also markets through certified public accountants. A firm outage and a processor outage are different nodes. Both can stop a client's books in the same week.

   sec.govsec.gov

How hard, how soon

What to do

What to watch

• Unadjusted NAICS 5412 employment, one-month percent change. Act when unadjusted industry employment falls by more than 3.8 percent in one month. Half of the calculated 7.6 percent filing-season step-down is 3.8 percent, and that half is a planning line. BLS does not publish this tripwire.

  data.bls.gov

• Pay-file age, weeks. Act when a pay file is not released within 2 weeks of the last completed pay period. Two weeks is the February 2023 modal cycle. The 2-week threshold is a planning line. No Labor Department covenant for this industry was published.

  bls.gov

• Seasonally adjusted NAICS 5412 employment, thousands. Act when seasonally adjusted employment prints below 1125.9 thousand. That figure is the preliminary October 2026 print. It is a planning line at the latest observed level, not a BLS minimum.

  data.bls.gov

• Processor termination notice, days. Act when fewer than 30 days remain on a processor termination notice and a parallel pay file has not been tested. Thirty days is the Paychex notice term. The line is a planning line. No lender covenant was published.

  sec.gov

By role

Weekly checks

• NAICS 5412 employment, thousands, seasonally adjusted The latest preliminary October print is 1125.9 thousand. A break below that print is the early labor signal. It is not a China-revenue series.

  data.bls.gov

• NAICS 5412 employment, thousands, not seasonally adjusted April 2026 was 1187.2 and May 2026 was 1097.3. The calculated filing-season step-down is 7.6 percent. Use the unadjusted series during filing season.

  data.bls.gov

• Pay-file age, weeks The modal cycle is every 2 weeks. A file older than that cycle is the domestic cash signal.

  bls.gov

• Client funds and year-end statement completion The baselines are 43957.8 million dollars of funds held and more than 79 million year-end statements. A stuck remittance is the settlement signal.

  sec.gov

• China and Taiwan audit engagements still staffed The baselines are 42 China firms and 13 Taiwan firms. A count of engagements that cannot get workpapers is the audit-book signal. Fees are unpublished.

  pcaobus.org

Sources

• BLS CES NAICS 5412 employment, seasonally adjusted
• BLS CES NAICS 5412 employment, not seasonally adjusted
• BLS Occupational Outlook Handbook, accountants and auditors
• BLS length of pay periods, CES
• ADP fiscal 2026 Form 10-K
• Paychex fiscal 2026 Form 10-K
• PCAOB 2025 annual report
• CISA financial services sector
• CISA Volt Typhoon advisory page
• NSW Health Frontier Software cyber incident FAQ