It's best to prepare to make sure this doesn't happen to begin with, as going to the interview and then being told the evidence is insufficient will likely cause long delays in an already frustratingly long process! :-)To check if your income qualifies, use this chart here: http://www.usavisanow.com/wp-con... You will need to see if you income level is higher than 125% on that chart, counting yourself, your fiancu00e9, and any dependents in your household number. If you exceed that number, you will be all set as long as you provide tax documents for the past 3 years, several recent paystubs, and a letter from your employer on business letterhead stating your salary and length of employment. If you don't meet the income requirement for your household count, you have 2 options: use a joint sponsor or use personal assets to add to your number. Using personal assets is confusing and doesn't always convince them, so finding a joint sponsor is the best method in most cases.Your joint sponsor can be basically any American citizen, but it's a good idea to use close friends or family as it is a serious legal commitment for them to sign papers to joint sponsor your fiancu00e9. If you use a joint sponsor, you will need to use the same chart above and add your sponsor plus any dependents to yourself, your fiancu00e9, and any dependents to get a grand total of the household count. Then you add your income to your joint sponsor's income and again try to exceed %125.You can add multiple joint sponsors as necessary, but you must make sure to add them and all their dependents to your household count. Then make sure you fill out a separate affidavit of support for each sponsor and provide the evidence (last 3 years of tax documents, recent paystubs, and employer's letter) for each sponsor.For more help with your K1 visa questions, visit my website My Visa Coach. Tons of free advice on my blog, sign up for a FREE 5-day visa application course, or enroll in our K1 Visa all-inclusive multimedia online course that will guide you through every step in the K1 process!Good luck with your K1! :)