Direct answer: Form 945 reports nonpayroll withholding, not ROBS activity
File Form 945 when the payer withholds or is required to withhold federal income tax from nonpayroll payments. IRS instructions list retirement-plan and IRA distributions as nonpayroll payments and say withholding reported on Forms 1099, including Form 1099-R, must be reported on Form 945.[2] The filing trigger is a nonpayroll withholding liability under the correct payer name and EIN; a ROBS arrangement without that liability does not create a Form 945 filing duty.[1][2]
Do not use Form 945 to report gross distributions, stock purchases, C corporation capitalization, wages, Form 5500 information, corporate tax, plan qualification or rollover eligibility. Those records belong in other files. The practical ROBS question is: which legal payer withheld or should have withheld federal income tax from a nonpayroll payment, and do that payer's Form 1099-R box 4, deposits, liability schedule and Form 945 reconcile?
Definitions that keep the Form 945 lane clear
Form 945 is the annual return of withheld federal income tax for nonpayroll payments. Nonpayroll withholding is federal income tax withheld or required to be withheld from payments that are not wages, including certain retirement-plan, IRA, annuity, backup-withholding and gambling payments.[2] A payer is the legal plan, trustee, custodian, insurer, issuer or business that made or is treated as making the payment. A deposit schedule controls when withheld tax must be deposited during the year. A liability schedule reports when tax liability arose; it is not a list of deposit dates.[2][6]
Who owns the payer, recipient, custody and money-movement records
Start by separating the parties before assigning a filing. The payer, the recipient, the receiving plan and the corporation can all appear in the same ROBS transaction, but they do not control the same records.
What belongs on Form 945, and what does not
In scope: federal income tax withheld or required to be withheld from nonpayroll payments, backup withholding, retirement distribution withholding, deposit schedule determination, EFT deposits, line 1 and line 2 reconciliation, Form 1099-R box 4 tie-out, Form 945-A where required, Form 945-X corrections, final-return indicator and notice response.[2][4][5]
Out of scope: source-plan gross distribution reporting on Form 1099-R, recipient tax treatment, rollover validity, plan stock purchase, wages, Social Security and Medicare taxes, Form 941, Form W-2, corporate income tax, Form 5500, plan qualification and fiduciary decisions. Those topics may be related in the same ROBS file, but they are not Form 945 line items.[2][6][9]
Annual workflow for a ROBS-related Form 945 issue
Work in calendar-year order: identify the payer, classify the payment, determine deposit timing before deposits are due and reconcile the annual return after year-end.
When liability, deposits and the annual return happen
Liability arises when federal income tax is withheld or required to be withheld from the nonpayroll payment. Deposits are due under the payer's deposit schedule during the year and must be made by electronic funds transfer. The annual Form 945 return is filed after year-end. For 2025, the IRS instructions say file by February 2, 2026 because January 31, 2026 falls on Saturday; if timely deposits fully paid the taxes due, the return may be filed by February 10, 2026.[2]
For a 2026 liability year, do not copy the 2025 calendar blindly. Recompute against the current Form 945 instructions. As a reproducible example, January 31, 2027 is Sunday, so a general January 31 annual return date would move to Monday, February 1, 2027 under the weekend rule if current instructions use that same base date.[2][6]
Monthly, semiweekly and $100,000 deposit boundaries
The Form 945 instructions use a lookback period to determine whether the payer is monthly or semiweekly. The lookback period for calendar year 2025 is calendar year 2023. If total taxes reported on Form 945 line 3 for the lookback period were $50,000 or less, the payer is generally monthly. If more than $50,000, the payer is generally semiweekly. A new filer is treated as monthly for the first calendar year unless the $100,000 next-day rule applies.[2][6]
Under the $100,000 next-day rule described in Publication 15, once accumulated taxes reach $100,000 or more on any day during a deposit period, the tax must be deposited by the next business day. A monthly depositor that triggers the rule becomes a semiweekly depositor for the rest of the current year and the next year.[6] That rule is about accumulated tax liability, not gross rollover dollars, company revenue or retirement account size.
Electronic payment controls
IRS instructions say federal tax deposits must be made by electronic funds transfer and warn not to use electronic funds withdrawal, credit cards or debit cards to make federal tax deposits. EFTPS, IRS Direct Pay and the business tax account are identified as electronic options in the Form 945 instructions.[2]
The IRS EFTPS page says EFTPS is a free Treasury system, lets users schedule payments up to 365 days in advance, change or cancel scheduled payments, receive acknowledgments, view 15 months of payment history and that new enrollments can take up to five business days to process.[8] A ROBS file should retain the EFTPS tax form, tax period, amount, date, confirmation number and bank proof for each Form 945 deposit.
How to reconcile the Form 945 lines
Read the return as a withholding reconciliation, not as a transaction summary. Each line should connect to a source record, deposit record or liability schedule.
How Form 1099-R box 4 ties to Form 945
For a retirement distribution payer, Form 1099-R box 4 federal income tax withheld should tie to the payer's Form 945 nonpayroll withholding. The gross distribution in box 1 does not move to Form 945. Reconcile by recipient, event date, payer EIN, withholding amount, deposit date, liability date and correction status.[2][9]
If a corrected Form 1099-R changes only a recipient TIN or code but not federal withholding, Form 945 may not change. If a corrected Form 1099-R shows that the previously filed Form 945 reported a federal withholding amount different from what was actually withheld from payees, review the Form 945-X administrative-error lane. If the issue is a penalty or interest assessment, use the notice and Form 843 path described in the Form 945 instructions. If the issue is an information-return error, correct the information return. If the issue is wrong EIN, wrong tax year or payment application, use the applicable IRS notice, payment-tracing, return-filing or practitioner-resolution channel instead of calling it a Form 945-X correction.[2][5][9][10]
Zero-year and final-return decisions
The Form 945 instructions state that a filer does not have to file Form 945 for years in which it has no nonpayroll tax liability.[2] That supports a documented no-return conclusion when the only ROBS activity was plan formation, rollover acceptance, stock purchase, valuation or payroll. It does not support ignoring a required Form 945 after withholding happened.
Form 945 includes a final-return line when the payer will not have to file Form 945 returns in the future. Use it only when the facts support final status, such as a plan or payer that will no longer have nonpayroll withholding obligations. Preserve the termination, distribution and professional review records that support the checkbox.[2][3]
Corrections: keep Form 945-X narrow
Use Form 945-X only for the administrative-error lane the IRS describes: federal income tax, including backup withholding, reported on a previously filed Form 945 is not the amount actually withheld from payees. The Form 945 instructions say Form 945-X is filed separately from Form 945. The About Form 945-X page narrows the product to those administrative errors, so do not use it as a catchall for every Form 945 problem.[2][5]
Route other problems to their own channels. Penalty or interest abatement belongs on Form 843 or a notice response under the Form 945 instructions. Form 1099-R or other information-return mistakes need corrected information returns and recipient statements under the information-return instructions. Wrong EIN, wrong tax year, wrong return, missing payment, misapplied deposit or account-transcript issues need the applicable IRS notice, payment-tracing, return-filing or practitioner-resolution process, not a Form 945-X label unless the actual withholding-amount administrative-error test is also met.[2][5][9][10]
IRS notices and when to escalate
If the IRS sends a penalty notice after filing, the Form 945 instructions say to reply to the notice with an explanation and the IRS will determine whether reasonable-cause criteria are met. They also say not to attach an explanation when filing the return and to use Form 843 for abatement of assessed penalties or interest rather than Form 945 or 945-X.[2]
Escalate when the notice mentions a mismatched EIN, missing deposit, averaged FTD penalty, late filing, Form 1099 mismatch, unpaid balance, incorrect liability schedule or possible trust fund exposure. In a ROBS context, involve the plan administrator, CPA and ERISA counsel when the notice connects to a plan distribution, plan termination, loan default, employer stock distribution or participant correction.
Records to keep
Keep the Form 945 file with payer EIN proof, account authority, withholding elections, distribution authorizations, Forms 1099-R, deposit confirmations, liability calculations, Form 945, Form 945-A if used, Form 945-X if filed, correspondence, notice responses and adviser conclusions. Publication 15 supports retaining employment tax records for at least 4 years after the due date of the return or the date taxes were paid, whichever is later.[6]
Keep related files in their own lanes: corporate payroll and Forms W-2 or 941, qualified plan documents, rollover acceptance records, plan distribution approvals, participant notices, valuation files, Form 5500 records and corporate minutes. Do not let a Form 945 reconciliation become the only evidence for a ROBS transaction.[12][13][14]
Controls before filing
Before filing, run the same controls a preparer would use to catch payer, scope, deposit and correction mismatches.
Reproducible calculations
These examples are arithmetic controls, not tax advice. They intentionally avoid distribution codes and invented live deposit due dates.
ROBS Form 945 Checklist
Use this checklist to confirm that the Form 945 file can be traced from payer identity through withholding, deposits, corrections and related plan records.
- Payer legal name and EIN confirmed
- Nonpayroll withholding events identified
- Payroll and Form 941 items removed
- Form 1099-R box 4 totals reconciled
- Backup withholding reviewed separately
- Deposit schedule documented from lookback period
- $100,000 next-day trigger checked
- EFTPS confirmations retained
- Line 1, line 2 and line 3 recomputed
- Line 4 deposit total matched to confirmations
- Line 7 or Form 945-A chosen correctly
- Zero-return or final-return position documented
- Form 945-X administrative-error test evaluated
- Information-return corrections evaluated
- Notice-response file retained
- Plan, corporate and payroll records stored separately
Related guides
Use these adjacent guides when the issue is gross distribution reporting, tax implications, payroll, Form 5500, annual administration, employee eligibility, valuation, prohibited transactions or audit risk rather than Form 945 withholding.
Frequently Asked Questions
Short answers to common Form 945 questions in a ROBS file.
Does every ROBS plan file Form 945?
No. The IRS says Form 945 is required when a payer withholds or is required to withhold federal income tax from nonpayroll payments. A ROBS arrangement alone does not create a Form 945 filing if there is no nonpayroll withholding liability for that calendar year.[1][2][12]
Does Form 945 report a rollover or distribution amount?
No. Form 945 reports federal income tax withheld or required to be withheld from nonpayroll payments. The gross retirement distribution belongs on Form 1099-R when reporting applies, while Form 945 reconciles the withholding tax liability and deposits.[2][9]
Can the C corporation use its payroll EIN for plan distribution withholding?
Only if that same legal payer and EIN are the payer responsible for the nonpayroll withholding. IRS instructions warn that the Form 945 name and EIN must match the information returns where the federal withholding is reported. Do not substitute the corporation merely because a ROBS exists.[2][9]
Is Form 945 a substitute for Form 1099-R?
No. Form 1099-R reports retirement distributions to the recipient and the IRS. Form 945 is the payer's annual nonpayroll withholding return. A complete file can need both, plus deposits and corrections, but one does not replace the other.[2][9][10]
Is Form 945 a payroll return?
No. IRS instructions say wage withholding belongs on employment tax returns such as Form 941, 943, 944, Schedule H or CT-1, not on Form 945. Owner salary from the ROBS C corporation is a payroll lane, not a Form 945 lane.[2][6][7]
When is the Form 945 return due?
For 2025, the IRS instructions set the filing date as February 2, 2026 because January 31, 2026 falls on Saturday. If timely deposits fully paid the year, the return may be filed by February 10, 2026. Recompute the date for each tax year using current instructions and weekend or legal-holiday rules.[2][6]
Do deposits wait until Form 945 is filed?
No. Filing the annual return and depositing withheld tax are separate duties. Deposits follow the payer's Form 945 deposit schedule and electronic deposit rules during the year, while Form 945 is the annual reconciliation return.[2][6][8]
How is the monthly versus semiweekly schedule determined?
Use the Form 945 lookback period and total tax reported on Form 945 line 3 for that lookback period. A reported $50,000 or less generally points to monthly; more than $50,000 points to semiweekly. A new filer is monthly unless the $100,000 next-day rule is triggered.[2][6]
What is the $100,000 next-day rule?
Publication 15 applies a next-day deposit rule when accumulated taxes reach $100,000 or more on any day during a deposit period. After that, a monthly depositor becomes a semiweekly depositor for the remainder of the year and the following year. Confirm the current wording before live deposits.[6]
When is Form 945-A needed?
The Form 945 instructions direct certain filers, including semiweekly schedule depositors, to use Form 945-A rather than the monthly summary on line 7 to report federal tax liability by date. This is a liability record, not a deposit list.[2][4]
How are Form 945 withholding-amount errors corrected?
Use Form 945-X only for the administrative-error lane described by IRS: a previously filed Form 945 reported federal income tax, including backup withholding, that differs from the amount actually withheld from payees. Penalty or interest abatement, information-return errors, wrong EIN or year issues, and payment-application problems need their own IRS channels rather than being labeled Form 945-X mechanics.[2][5][10]
Should a zero Form 945 be filed just to show compliance?
IRS instructions state that you do not have to file Form 945 for years in which you do not have a nonpayroll tax liability. Do not file a zero return as a ROBS proof ritual unless an adviser has a specific fact-based reason.[2]
What records should be retained?
Keep payer identity, EIN proof, withholding elections, Form 1099-R copies, deposit confirmations, liability schedules, Form 945 or 945-X filings, notice responses and plan distribution authorizations. Employer payroll records and plan records should be retained in their own lanes too.[2][6][8][13][14]
Sources and limitations
Official IRS pages and instructions were rechecked for the July 31, 2026 cutoff. The Form 945 current revision was still the 2025 revision at cutoff, while Publication 15, Publication 15-A and the Forms 1099-R/5498 instructions were 2026 revisions. Live filing should begin at IRS.gov/Form945 because IRS form instructions, payment options and electronic filing rules can change. This guide does not select distribution codes, decide taxable amount, approve a ROBS arrangement, replace plan documents, provide legal advice or set live deposit dates without current-year facts.
- 1. IRS About Form 945
Official IRS product page, last reviewed or updated March 31, 2026 and rechecked for the July 31, 2026 cutoff. It states that Form 945 reports withheld federal income tax from nonpayroll payments and links the 2025 Form 945, instructions, Form 945-A and Form 945-X pages.
- 2. IRS Instructions for Form 945
Official 2025 instructions rechecked for the July 31, 2026 cutoff. They control who files, due dates, EIN matching, nonpayroll scope, wage exclusions, deposit schedules, line instructions, final returns, Form 945-X and notice response.
- 3. IRS Form 945 PDF
Official 2025 annual return rechecked for the July 31, 2026 cutoff and used for line labels, monthly liability summary and final-return checkbox context. PDF was reachable through the IRS current revision page at cutoff.
- 4. IRS About Form 945-A
Official page, last reviewed or updated July 8, 2026, rechecked for the July 31, 2026 cutoff for the annual record of federal tax liability. It supports the semiweekly depositor boundary when line 7 is not the right liability schedule.
- 5. IRS About Form 945-X
Official page, last reviewed or updated March 31, 2026, rechecked for the July 31, 2026 cutoff stating Form 945-X corrects administrative errors only on a previously filed Form 945 when federal income tax, including backup withholding, reported on Form 945 is not the amount actually withheld from payees.
- 6. IRS Publication 15
Official 2026 Circular E, rechecked for the July 31, 2026 cutoff. It supplies deposit rule details, business-day/legal-holiday rule, $100,000 next-day rule, EFT deposit controls, recordkeeping and payroll separation.
- 7. IRS Publication 15-A
Official 2026 supplemental employer guide rechecked for the July 31, 2026 cutoff. It supplies retirement-payment withholding boundaries, Form W-4R context, nonperiodic payment withholding and payroll classification context.
- 8. IRS EFTPS page
Official EFTPS page, last reviewed or updated June 28, 2026 and rechecked for the July 31, 2026 cutoff. It states EFTPS is free, allows scheduling payments up to 365 days in advance, provides acknowledgments and 15 months of payment history, and notes enrollment processing can take up to five business days.
- 9. IRS Instructions for Forms 1099-R and 5498
Official 2026 instructions rechecked for the July 31, 2026 cutoff and used for Form 1099-R box 4, payer reporting, corrected 1099-R mechanics and retirement distribution reporting boundaries.
- 10. IRS General Instructions for Certain Information Returns
Official 2025 general information-return instructions rechecked for the July 31, 2026 cutoff. They support information-return filing, corrections, recipient statements, e-file threshold and Form 1096 boundaries.
- 11. IRS E-file information returns
Official IRS e-file page, last reviewed or updated February 17, 2026, rechecked for the July 31, 2026 cutoff for information returns, including the general 10-return electronic filing threshold and IRIS context.
- 12. IRS Rollovers as Business Start-Ups Compliance Project
Official IRS ROBS compliance project page rechecked for the July 31, 2026 cutoff. It confirms the ROBS structure and recurring filing or operational failures but does not create a Form 945 filing duty by itself.
- 13. IRS Operating a 401(k) plan
Official IRS plan-operation overview, last reviewed or updated July 31, 2026, rechecked for the July 31, 2026 cutoff. It supports separating plan documents, distributions, reporting and correction records from corporate Form 945 filing.
- 14. IRS Employment tax recordkeeping
Official IRS page, last reviewed or updated June 12, 2026 and rechecked for the July 31, 2026 cutoff. It says to keep employment tax records for at least 4 years after filing the 4th quarter for the year and lists deposit, return and withholding-certificate records.