In my country, we rarely use software or professional services for filing personal income tax. Not for most people unless you have special circumstances which a

In my country, we rarely use software or professional services for filing personal income tax. Not for most people unless you have special circumstances which are usually reserved for super high networth individuals. What my local IRS did is sensible default. Employment income are submitted electronically to my IRS from most employers. Deductions and reliefs are automatically factored in if it relates to other government services (e.g. reliefs for child). What I love most is for information that they don't have information on, such as deductible expenses for rental income, they suggest a default of 15% expenses where we don't have to provide any proof or documentation. It is a 15% deduction over the rental income that's just given to you. Of course, we can challenge it if we feel we should have higher deductions, providing them with the necessary documents.