---
title: "FIX 5.0 SP2 EP292: ReturnRateCommissionBasis <42737> field – FIX Dictionary – Onix Solutions"
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# ReturnRateCommissionBasis <42737> field

## FIX 5.0 SP2 EP292

### Description

 Type: [char](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep292/index.html#char)

 Specifies the basis or unit used to calculate the commission.

Valid values:

- 1 = Amount per unit
  
   Implying shares, par, currency, physical unit etc. Use [CommissionUnitOfMeasure <2644>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep292/tagNum_2644.html) to clarify for commodities.
- 2 = Percent
- 3 = Absolute
  
   Total monetary amount.
- 4 = Percentage waived, cash discount basis
  
   For use with CIV buy orders.
- 5 = Percentage waived, enhanced units basis
  
   For use with CIV buy orders.
- 6 = Points per bond or contract
  
   Specify [ContractMultiplier <231>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep292/tagNum_231.html) in the Instrument component if the security is denominated in a size other than the market convention, e.g. 1000 par for bonds.
- 7 = Basis points
  
   The commission is expressed in basis points in reference to the gross price of the reference asset.
- 8 = Amount per contract
  
   Specify [ContractMultiplier <231>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep292/tagNum_231.html) in the Instrument component if the security is denominated in a size other than the market convention.

### Used In

- [<ReturnRateGrp>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep292/compBlock_ReturnRateGrp.html)

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