Help, My Credit Score Just Fell Off A Cliff (and I didn't even do anything)!

As you may not know, Fair Isaac (what's so fair about them, I don't know) recently updated its FICO score formula and it is being rolled out by the three primary credit agencies. While there are many views on whether these changes are good or bad, the one certainty about all of this is that your credit score is probably going to change. Here's our quick and dirty on how this might affect you:

If your credit is currently being bolstered because you are an authorized user on your parents credit card account, you are probably going to get HAMMERED! One of the largest (and most negative) changes to the formula is the removal of the benefit you get from being on someone elses account as an authorized user. Some credit analysts belive as many of 25% of all Americans with credit could be negatively affected by this one change (that's about 40 million people whose credit score could fall). The good news is that it may take a number of months before all the credit card companies, banks, etc. begin to use this new score (so, get some new credit while you can - P2P-Loans.com has some great credit card offers if you are interested). Getting credit now (while you can still piggyback with daddy's good credit) will allow you to start building your own on-time credit file.

However, there are some positive changes to the scoring methodology as well. For example, the system treats a single large slip up (even as much as 90 days) as an “isolated delinquency” to individuals with a 10-year credit history. Routine late payments of less than 90 days will still damage your report but at least now a legitimate mistake won’t haunt you so severely.

Also under the new system, multiple credit inquiries in a short period of time won’t be so damaging to your credit score, as now they will be weighted less heavily in calculating the overall number.

Finally, the new system rewards borrowers who demonstrate the ability to stay on top of both revolving debt (credit cards, home equity lines of credit) and installment loans (Prosper Loans, student, auto or boat loans, mortgages). Even if you show a wide range of loans but a solid history of paying them on time, expect your score to jump up as well. Go figure, if you pay on time, you have a good score!

Just as a helpful refresher, here is what we do know about the FICO system (even though the exact numbers are closely guarded by Fair Isaac) and what the rough weighting is for certain types of credit data used:

- 35% — punctuality of payment in the past (only includes payments later than 30 days past due)
- 30% — the amount of debt, expressed as the ratio of current revolving debt (credit card balances, etc.) to total available revolving credit (credit limits)
- 15% — length of credit history
- 10% — types of credit used (installment, revolving, consumer finance)
- 10% — recent search for credit and/or amount of credit obtained recently