In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

A majority of ObamaCare customers, 52 percent, are being forced to pay back some of their subsidies during this year’s tax season, according to new data from H&R Block. 
  
 Customers are paying back an average of $530, which has caused a 17 percent drop in the average return so far this spring, according to the analysis by the tax services giant. 
  
 ADVERTISEMENT 
  
 The Obama administration had warned that people could end up paying back some of their subsidies because many were relying on previous years’ income when applying for the tax breaks. 
  
 H&R Block has predicted that “most filers” would owe some of their subsidies back to the federal government because they were relying on 2012 income. 
  
 The new data, which was released Tuesday, only represents about six weeks of tax filings. Still, it could pose a significant challenge for the administration as it faces an already tough tax season. 
  
 “It’s costing taxpayers a large percentage of their refund – a refund many of them count on to pay household expenses,” Mark Ciaramitaro, vice president of H&R Block health care and tax services, wrote in a statement. 
  
 Last week, the Department of Health and Human Services asked 800,000 people to delay their tax filings because the agency sent out the wrong forms. The average refund so far this year is about $3,000, according to H&R Block. 
  
 Officials said last week that less than 10 percent of people had filed their taxes. ||||| These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. |||||
People who got a subsidy from ObamaCare to help pay for their health insurance are getting a not-so-pleasant surprise on their taxes: H&R Block reports that 52% of people who got subsidies have to pay back a chunk of that money to the government. The average payback is $530, equating to a 17% drop in returns, reports the Hill. The main reason for the payback? Filers' 2014 income came in higher than expected, and thus the subsidies they received were too high. “It’s costing taxpayers a large percentage of their refund—a refund many of them count on to pay household expenses,” say H&R Block VP Mark Ciaramitaro. The figures are based on only the first six weeks of the filing season and could change. On the upside, about 38% of ObamaCare filers found out they were getting an average credit of $366 because their subsidies were too low, reports Forbes. So far, the average penalty for those without health insurance is $172, and Forbes thinks many filers who learn of the penalty will take advantage of a new special enrollment period (from March 15 to April 30) put into place for just that reason.