When you submit your MCR file, you may receive a warning error file. This will contain the contribution errors that you’ll need to correct in your payroll, then provide an update in your next MCR submission to reflect this change. It’s important to clear any errors as soon as possible. To ensure you’re deducting contributions for your members correctly, if there’s any outstanding that are three months old, you’ll no longer be able to make any further submissions until these are corrected. This could result in queries from your employees if service details are missing from their records. Where files can’t be submitted due to existing errors, you should still arrange to make your monthly payment to avoid any late payment interest charges.