How do I record an addition to cost basis reported on 1099
I'm using Quicken Classic Premier for Windows version R60.20.
Schwab reported an addition to cost basis under a section titled "Widely Held Fixed Investment Trusts (WHFIT) Reporting." According to Schwab's customer service, there was a discrepancy in the income this security earned and what had been paid out during the year, and the remedy they applied was to increase cost basis. This has no effect on the current tax return, but will affect the reported gain when the security is sold. [The shares were originally purchased in one single lot.]
How should I record this in Quicken? Should it be recorded as a "return of capital"? If so, do I also record a negative dividend for the same amount in order not to add any cash to the account? [By the way, that's how I treat other 1099-reported RoC's in Quicken, and I'm not sure that's the best practice.] I'd rather not edit the original purchase details, but I don't know how else to get my information to match Schwab's. Thank you.