IFRS is too broad a term to draw a comparison. What particularly are you looking to compare?
If it were leasing for example - I have found great information searching "ias 17 versus gaap"
IAS 17 is the particular subsection of IFRS pertaining to leasing.
Hope this helps. Let me know more and I might be able to help.
For identifying differences between IFRS and USGAAP there are lot of websites of the Big4 audit firms available on the Net.
Regarding the SAP impact ,New GL Functionality is available in ECC6 where parallel ledgers can be configured for Local and IFRS Reporting.Also scenarios for Inventory valuation ,foreign exchange gain/loss,Consolidation , Revenue recognition and asset Accounting can be envisaged for IFRS impact at a broader level.
Your Question is an open ended one......
pl follow this link: http://wiki.ifrs.com/
Home > Overview > Small and Medium-Sized Entities > IFRS for SMEs - U.S. GAAP Wiki > Wiki Home
to have more understanding about the comparison between IFRS and US GAAP, as on today.
If necessary Register in this site, which is free and get more insight about all standards.
I hope this will help you some extent... Please let me know if you need any more on IFRS & USGAAP.
Thanks & Regards
to be more precise, US GAAP is a must for SEC Listed companies in the USA and it is case law based. It consists of structure reporting as given below.
a. Balance Sheet
b. Income Statement
c. Cash flow statement
d. Statement of retained earnings
IFRS is mainly for Trading companies.
Please go through www.fasb.org
and also American Accounting Codification for more information.