\n| Nontaxable cash distribution affecting basis<\/td>\n | Amount distributed, reduction to basis, and basis remaining after the distribution<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nWhat Issuer Documents Should Brokers Keep for Corporate-Action Basis Adjustments?<\/h2>\nIssuer information provides the tax basis treatment for a corporate action, while the broker\u2019s operational records document how that treatment was applied to affected customer positions. Brokers should therefore retain both the issuer documentation and the processing records needed to trace the basis adjustment from the corporate action through its application to customer positions.<\/p>\n The broker\u2019s file should include the following:<\/p>\n Form 8937 or Equivalent Issuer Information<\/h3>\nRetain the applicable Form 8937, Report of Organizational Actions Affecting Basis of Securities, or equivalent issuer information used to support the basis adjustment.<\/p>\n Keep the details needed to identify and reproduce the adjustment, including:<\/p>\n \n- Issuer and affected security<\/li>\n
- CUSIP or other security identifier<\/li>\n
- Corporate action date<\/li>\n
- Type of organizational action<\/li>\n
- Quantitative effect on the basis<\/li>\n
- Allocation percentage or methodology<\/li>\n
- Relevant valuation information<\/li>\n
- Federal tax treatment<\/li>\n<\/ul>\n
Brokers generally rely on this issuer information unless it is incomplete or known to be incorrect.<\/p>\n Corporate-Action Operational Records<\/h3>\nBeyond the issuer form, brokers need operational data to link the action to specific customer positions:<\/p>\n \n- Effective, record, and payable dates, when applicable<\/li>\n
- Exchange or distribution ratio<\/li>\n
- Old and new security identifiers<\/li>\n
- Cash or other consideration<\/li>\n
- Fractional-share treatment (cash vs share)<\/li>\n
- Quantities before and after processing<\/li>\n
- Internal event IDs assigned for the corporate action<\/li>\n<\/ul>\n
What Transfer-Statement Records Should Brokers Keep When Securities Move Between Firms?<\/h2>\nWhen a security moves between firms, the receiving broker must preserve the transfer statement. It gives the receiving broker the basis details needed when the cost-basis history comes from outside the firm. Such a transfer statement must generally be furnished within 15 days after the settlement date.<\/p>\n Brokers must retain:<\/p>\n \n- Transferor and receiving broker information<\/li>\n
- Customer and account information<\/li>\n
- CUSIP or other security identifier<\/li>\n
- Number of shares or units<\/li>\n
- Transfer and settlement dates<\/li>\n
- Original acquisition date<\/li>\n
- Total adjusted basis<\/li>\n
- Applicable holding-period adjustment<\/li>\n
- Required debt instrument or option information, when relevant<\/li>\n<\/ul>\n
How Should Brokers Document the Lot-Level Adjusted-Basis Calculation?<\/h2>\nA broker\u2019s cost-basis documentation trail from acquisition to disposition can help show how each amount reported on Form 1099-B was calculated. The following basis calculation trail shows how the basis moves from acquisition through reporting:<\/p>\n Basis Calculation Trail<\/h3>\nOriginal or transferred basis
\n\u2193
\nPre-action basis
\n\u2193
\nCorporate-action adjustment\/allocation
\n\u2193
\nBasis after the adjustment
\n\u2193
\nAdjusted basis by lot
\n\u2193
\nBasis at disposition
\n\u2193
\nBasis reported on Form 1099-B<\/p>\n Lot-Level Basis Records<\/h3>\nFor each affected lot, the broker should be able to show:<\/p>\n \n- Which security was involved<\/li>\n
- When it was acquired and how many shares or units were held<\/li>\n
- The basis before the corporate action<\/li>\n
- How much of the basis was adjusted or reallocated<\/li>\n
- Post-action quantity<\/li>\n
- The new adjusted basis<\/li>\n
- The updated basis per share or unit<\/li>\n
- Adjustment date<\/li>\n
- Source document<\/li>\n
- Calculation or transaction ID<\/li>\n<\/ul>\n
Reconcile to Form 1099-B<\/h3>\nThe final adjusted basis in the broker\u2019s lot records should agree with the amount entered in Form 1099-B, Box 1e. The records should also show how the basis changed after the corporate action. When the amounts do not match, the broker needs to find the cause and fix the records or the form before filing.<\/p>\n How Should Brokers Handle Missing, Incomplete, or Conflicting Basis Information?<\/h2>\nA broker\u2019s internal controls should create an exception record whenever issuer or transfer-statement information cannot be used.<\/p>\n Missing transfer statement<\/h3>\nWhen a required transfer statement does not arrive on time, the broker should follow up with the transferor firm and keep a record of what happened. That record should show:<\/p>\n \n- When the statement was due<\/li>\n
- When the follow-up request was sent<\/li>\n
- Any correspondence or response received<\/li>\n
- What information is still missing<\/li>\n
- Whether the security is being treated as covered or noncovered<\/li>\n<\/ul>\n
Note: If the broker asks for a complete transfer statement and does not receive it, IRS rules may allow the security to be treated as noncovered.<\/p>\n Incomplete or incorrect information<\/h3>\nWhen issuer filings or transfer statements are incomplete or known to be inaccurate, brokers should preserve:<\/p>\n \n- The original information received<\/li>\n
- The reason the data was not relied upon<\/li>\n
- The verified alternative source used<\/li>\n
- The resulting basis determination and rationale<\/li>\n<\/ul>\n
What Records Are Needed When New Information Requires a Form 1099-B Correction?<\/h2>\nLate issuer or transfer information should produce a correction trail showing exactly what changed. If an issuer statement is received after Form 1099-B has been filed and it changes the reported information, the broker generally must file a corrected Form 1099-B within 30 days of receiving the statement. The correction is generally not required when the issuer statement is received more than three years after the original Form 1099-B was filed.<\/p>\n Similar rules apply when a later transfer statement shows that a security previously treated as noncovered is covered. The broker must file a corrected Form 1099-B within 30 days, unless the statement is received more than three years after the original Form 1099-B was filed.<\/p>\n If the broker already transferred that covered security to another broker, a corrected transfer statement must generally be furnished within 15 days, unless the new information is received more than 18 months after the original transfer statement was furnished.<\/p>\n The correction file should retain:<\/p>\n \n- Original filing data<\/li>\n
- New issuer or transfer information<\/li>\n
- Date the information was received<\/li>\n
- Revised basis calculation<\/li>\n
- Corrected Form 1099-B data<\/li>\n
- Correction date<\/li>\n<\/ul>\n
How Long Should Brokers Keep 1099-B Cost-Basis Records?<\/h2>\nThe IRS generally says that copies of information returns should be kept, or the data should remain reconstructible, for at least 3 years from the return due date, and for 4 years if federal withholding, including backup withholding, was imposed.<\/p>\n For practical corporate action tax records, the supporting documentation should remain connected to the return data it supports. That includes:<\/p>\n \n- Issuer information<\/li>\n
- Transfer statements<\/li>\n
- Original acquisition records<\/li>\n
- Lot history<\/li>\n
- Corporate-action calculations<\/li>\n
- Exception records<\/li>\n
- Correction records<\/li>\n<\/ul>\n
Note: <\/strong>The 10-year Form 8937 rule requires issuers using the public-reporting exception to keep the form on their website for 10 years. It is not a blanket 10-year retention requirement for every broker\u2019s Form 1099-B basis records.<\/p>\nHow Should Brokers Organize an Audit-Ready Basis File?<\/h2>\nGood 1099-B cost basis recordkeeping should make it easy to see where the basis reported on Form 1099-B came from. Someone reviewing the file should be able to follow the basis back through each adjustment to the original purchase or transfer record.<\/p>\n Audit-Ready Record Chain<\/h3>\nA simple record trail might look like this:<\/p>\n \n\n\nRecord to Check<\/strong><\/th>\nWhat It Should Show<\/strong><\/th>\n<\/tr>\n\n| Form 1099-B<\/td>\n | Basis reported for the sale<\/td>\n<\/tr>\n | \n| Security and lot record<\/td>\n | Which shares or units were sold<\/td>\n<\/tr>\n | \n| Adjusted basis record<\/td>\n | Basis after the corporate action<\/td>\n<\/tr>\n | \n| Adjustment calculation<\/td>\n | How the merger, split, or spin-off changed the basis<\/td>\n<\/tr>\n | \n| Corporate-action details<\/td>\n | Date of the action, its terms, and any allocation or exchange ratio used<\/td>\n<\/tr>\n | \n| Issuer information<\/td>\n | Details used to support the adjustment<\/td>\n<\/tr>\n | \n| Pre-action basis<\/td>\n | Basis before the corporate action<\/td>\n<\/tr>\n | \n| Lot quantity record<\/td>\n | Shares or units held before and after the action<\/td>\n<\/tr>\n | \n| Purchase or transfer record<\/td>\n | Where the original basis came from<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n The file should also make clear that:<\/p>\n \n- The same security identifiers are used throughout the records<\/li>\n
- Each affected lot can be followed back to its original record<\/li>\n
- The final basis matches the underlying transaction and adjustment records<\/li>\n
- Any manual changes are explained and recorded<\/li>\n
- Original figures are kept separate from later corrections<\/li>\n
- The covered or noncovered status of the security is supported by the available records<\/li>\n<\/ul>\n
FAQs<\/h2>\n1. Does a broker need to account for issuer corporate actions that occurred before it received a transferred security?<\/h5>\nGenerally, no. For Form 1099-B purposes, the broker takes into account organizational actions occurring during the period it held custody of the security, beginning when it received the transferred security.<\/p>\n 2. Can a security received through a corporate action remain noncovered?<\/h5>\nYes. A security can remain noncovered if its basis is derived from a noncovered security involved in the corporate action. The treatment of covered status is determined by the rules governing basis reporting.<\/p>\n 3. Must brokers consider basis-affecting events occurring outside the account?<\/h5>\nGenerally, brokers are not required to consider transactions, elections, or other events occurring outside the account when determining reportable adjusted basis, subject to the applicable IRS rules.<\/p>\n 4. What should a broker be able to reproduce during an IRS review?<\/h5>\nThe broker should be able to trace the amount reported on Form 1099-B for the disposed lot through each corporate action adjustment and back to the issuer information, the original acquisition record, or the incoming transfer statement.<\/p>\n \nKeep the Basis Trail Together<\/h4>\nTax1099 helps brokers keep Form 1099-B filing data organized so reported basis can be reviewed, corrected, and supported when needed.<\/p>\n | | | |